•• »*-.' r LIBRARY OF THK UNIVERSITY OF CALIFORNIA. Accessions Oass No. Occasional Papers CALIFORNIA ACADEMY OF IV. SAN FRANCISCO, 1893. A Classed and Annotated BIBLIOGRAPHY OF THE PALEOZOIC CRUSTACEA 1688 1892 TO WHICH IS ADDED A Catalogue of North American Species. ANTHONY W VOGDES UNIVERSITY CALIFORNIA ACADEMY OF SCIENCES, June, 1893. r r i Committee of Publication: JOHN R. SCUPHAM. GUSTAV EISEN. FRANK H. VASUT. INTRODUCTION. The object of this paper is to give the literature on the Palaeozoic Crustacea and to aid students and palaeon- tologists in their researches. It is the result of more or less constant work during the past decade. It gives a list of authors, and includes an index of the species de- scribed in each work. I am well aware that the value of a work of this kind depends upon the care and labor given to its compila- tion. Every possible means of obtaining accurate in- formation from a miscellaneous class of literature in many languages has been used, and it is hoped that there are but few errors and omissions. I would thank those into whose hands this paper may fall for any information that would add to its value as a working hand-book. A. W. VOGDES. San Francisco, Cal., January 1, 1893. THB [V-IZ7IBSIT?] A BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA 1698-1891. A star (*) following a title indicate that the reference is recorded without opportunity for personal verification. Agassiz (L.) In Murchison's Silurian System 1839, p. 605. Plerygotus problematicus n. sp. Onchus murchisoni n. sp., p. 607, pi. 4, fig. 9-11. M'Coy refers this species to Ceratiocaris . Monographie des poissons fossiles du vieux gr£s rouge ou systSme devonien (old Red Sandstone) des iles Britanniques et de Russie. Text, Soluere; atlas, Neuchatel, 1844, pp. xix-xx, note; and atlas Tab. A. Pterygotus anglicus n. sp. Alth (Alois von). Ueber die palseozoischen Gebilde Podoliens und deren Versteinerungen. Erste Abtheil- ung. In Abhandl. k. k. geol. Reichsanst., vol. 7, pt. 1, Wien, 1874, 5 pi. Eurypterus remipes DeKay. Stylomurus? Sphcerexochus mirus Beyr. Ceraurus (Cheirurus) insiynis Beyr. Illcenus ( Bumastus) barriensis Murch. Calymene blumembachi Brong. - Dalmania caudata Briinn. Proelus po- doliciis u. sp., P. concinnus Dalm., P, dzieduszyckianus n. sp. Cyphaspis rugulosus n. sp. Beyrichia podolica n. sp., B. reussi n. sp., B. bilczensis n. sp., B, inornata n. sp. Primilia rectangular is n. sp., P. concinna Jones, P. oblonga J. & H., P. muta Jones? Leper ditia baltica His., L. romeri n. sp., L. phaseolus His. Bairdia protracta Eichw. Leper ditia lyraica Schmidt. L. romeri is referred to this species on pi. 5, figs. 28-32, 34-36. Pterygotus anglicus Agas. Encrinurus punctatus Emm. Illcenus bouchardi Barr. Alton (Ed. de). See Burmeister and Alton. Ami (Henry M.) Notes on Triarthrus spinosus Bil- lings. In Trans. Ottawa Field Nat. Club, No. 4, 1882-83, p. 88, 1 pi. Angelin (N. P.) Pakeontologia Scandinavica. Pars I. Crustacea formationis transitionis. Lipsiae, 1852, 4to. The first part of this work, entitled " Palaeontologia Scandinavica," containing pp. 1-24 and pi. 1-24, was published by the Koyal Swedish Academy of Sciences in 1852. The second portion in 1854, including a preface, pp. 1-9 and pp. 21-92, pi. 25-42. 4 CALIFORNIA ACADEMY OF SCIENCES. Fasciculus 1, 1852, contains descriptions of the following species: Olenus. Paradoxides tessini Brong. P . forchhammeri n. sp., P. loveni n.sp. Cryptonymus bellatulus Dalm., C.punctatus Wahl., C. obtusus n.sp., C. Icevis n.sp., (7. verrucosus Dalm. Eryx n. g. (corrected by Angelin to Elyx, the generic term Eryx having been used by Stephen in 1832 for a genus), E. laticeps n. sp. Acontheus n. g. (corrected by the author to that of Aneucanthus) . Aneucanthus acutangulus n. sp. Agnostus glandiformis n.sp., A. bituberculatus n.sp., A. Icevigatus Dalm., A. brevifrons n. sp., A. glabratus n. sp., A. lentiformis n.sp., A.pisiformis Linne, A. exsculp- tus n.sp., A. planicauda n. sp., A. reticulatus n.sp., A . punctuosus n.sp., A. aculeatus n.sp. Phacops bucculenta Sjogr., P. macroura Sjogr., P.. conicophthalma S. & B., P. tumida n. sp., P. mucronata Brong., P. cau~ data Briinn. (nee. Wahl.), P. imbricatula n.sp., P. cequicostata n. sp., P. eucentra n. sp., P. sclerops Dalm., P. granulosa n. sp., P. breviceps n. sp., P. lf.-line.ata n. sp. Polytomurus euglyptus n. sp. Brachypleura 6-linea- tus n.sp., B. 4-lineatus n.sp. Niobe n. g., N. lata n.sp., JV. lavicep* Dalm., N. frontalis Dalm., N. emarginula n. sp., N. explanata n. sp. Megalaspis n. g., M. gigas n. sp., M. heros Dalm., M. latilimbata n. sp., M. multiradiata n. sp., M . extenuata Wahl., M. rotundata n. sp., M. ex- planata n sp., M . stenorachis n.sp., M . planilimbata n.sp., M. limbata n.sp. Nileus palpebrosus Dalm., N. armadillo Dalm. Ampyx nasutus Dalm., A. tetragonus n. sp., A, carinatus n. sp. Proetus stokesi Murch., P. concinnus Dalm., P. elegantulus Loven, P. Icevis n. sp., P. 1 limbatus n. sp., P.? excavatus n.sp., P.? microphthalmus n. sp., P.? difformis n.sp. Calymene holometopa n. sp., C. canaliculata n. sp., C. brachymetopa n. sp., C. aculeata n. sp., C. lejostraca n. sp., C. stenometopa n. sp., C. tuberculala Briinn. (blumenbachii Brong). Fasciculus 2, 1854, contains descriptions of the following species: Phaethonides (Angelin uses this term for that of Phceton Barrande, 1846). Phaelhonides stokesi Murch. Forbesia concinna Dalm., F. conspersa n. sp. Goniopleura elegantula Loven. Celmus n. g., C. granulatus n. sp. Ano- mocare n. g., A. lave n.sp., A. limbatum n.sp., A. excavatum, n.sp., A. micro phthalmum u. sp., A. difforme n.sp., A. aculeatum n.sp., A. acumi- natum n.sp. Solenopleura n. g., S. holometopa n.sp., S. canaliculata n.sp., S. brachymetopa n. sp. Liostracus n. g., L. aculeatus n. sp. Solenopleura ? stenometopa n. sp. Calymene spectabilis n. sp., C. tuberculata Briinn. Homalonotus platynotusDalm., H. rhinotropis n. sp. Amphion. Pliomera fischeri Eichw. Chirurus ornatus Dalm., C. exsul Beyr., C. conformis n. sp. Cyrtometopus n. g., C. clavifrons Dalm. (ex. p.) Acidaspis pectinata n. sp., A. crenata Emm. Trapelocera bicuspis n.sp. Pliomera mathesii n.sp., P. actinura Dalm. Cyrtometopus scrobiculatus n. sp., C. diacanthus n. sp., C. octacanthus n. sp., C. longispinus n. sp. Sphcerexochus angusti- frons n. sp., S. scabridus u. sp., S. latifrons n. sp. Acidaspis granulata Wahl. (ex. p.), A. multicuspis n. sp., A. marklini n. sp., A. barrandei n.sp., A. ? armata Boeck. Trapelocera ? breviloba u. sp. fihodopt n. g. (this BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 5 term was used by Siebold in 1848 for a genus of the Gasteropoda), P. lin- eata n. sp. Dysplanus centaurus Dalm., D. centrotus Dalm. Bumastus lindstromi u. ; sp. Illcenus crassicauda Wahl. Rhodope ? oblongata n. sp. jEglina ? oblongula n. sp. Olenus truncatus Briinn., O. attenatus Boeck., O . sphcenopygus n. sp., O. aculeatus n. sp-., O. gibbosus Wahl., 0. aciculatus n.sp., O. ? acanthurus n.sp. Peltura scarabceoides Wahl. Parabolina spinulosa Wahl. Acerocare n. g., A. ecorne n. sp. Leptoplastus n.g., L. stenotus n.sp., L. raphidophorus n. sp., L. ovatus n. sp. Eurycare n. g. (this genus is referred by J. W. Salter, Mem. Geol. Survey United King- dom, Brit. Organic Remains, decade xi, pi. 8, p. .3, to the genus Sphce- rophthalmus Ang.), E. brevicauda n.sp., E. angustatum n.sp., E. latum Boeck., E.camuricorne n. sp. Sphcerophthalmus n. g., S . flagellifer n. sp., S. alatii.s Boeck., S. teretifrons n. sp. Anopocare n. g. (this genus is re- ferred to J. G. O. Linnarsson, Geol. Forening. Stockholm Forhdl., vol. 5, 1880-81, p. 136, to the genera Peltura and Sphcerophthalmus; the speci- men, according to Dr. Linnarsson, in the Royal Museum of Sweden, " marked by Angelin as the abdomen till Stenom. pusillus, contains several small heads of Sphcerophthalmus alatus, and a small pygidium of Peltura scarabceoides;" Dr. Linnarsson refers to this specimen as Angelin's type for the genus Anopocare and also remarks "that Augelin intended to change the family name of Sphcerophthalmus alatus and their nearest forms to that of Stenometopus, inasmuch as another specimen of Sph. alatus has, iu Augelin's own handwriting, the generic name of Stenometopus.") Ano- pocare pusillum n. sp. Megalaspis acuticauda n. sp., M. rudis n. sp. Ptychopyge n. g., P. applanata. Asaphus rimulosus n. sp., A. expansus Linue (ex. p.) A. raniceps Dalm., A.fallax Dalm., A. Icevigatus u. sp., A. acuminatus Boeck. Ptychopyge glabrata n. sp. Megalaspis excavato- zonata n. sp., M. zonata n. sp. Asaphus platyurus n. sp. Ptychopyge rimulosa n. sp., P. elliptica n. sp., P. multicostata n. sp., P. lata n. sp., P. angustifrons Dalm., P. limbata n. sp., P. media n. sp., P. aciculata n. sp. Bronteus laticauda Wahl., B. platyactin n. sp., B. polyactin n. sp. Holometopus n. g., H. aciculatus n. sp., H. ornatus n. sp., H. limbatus n. sp. Isocolus n. g., /. sjogreni n. sp. Corynexochus n. g., C. spinulosus n. sp., C.t umbonatus n. sp. Nileus ? lineatus n. sp. Symphysurus bre- viceps n. sp. Euloma n. g., E. Iceve n. sp., Pharostoma? celandicum n.sp. Conocoryphe dalmani n. sp. Bumastust glomerinus Dalm. For- besiat brevifrons n. sp. Aneucanthus acutangulus n. sp. Trinucleus wahlenbergi Rouault, T. ceriodes n. sp., T. carinatus n. sp., T. coscinori- nus n. sp., T. affinis. Sphcerocoryphe n. g., S. dentata n. sp. Deiphon globifrons n. sp. Staurocephalus clavifrons u. sp. Lichas celorrhin n. sp., L. laciniatus Wahl. (ex. p.), L. affinis n. sp., L. polytomus n. sp., L. de- pressus n. sp., L. convexus n. sp., L. concinnus n. sp., L. rotundifrons n. sp., L. laticeps n. sp., L. latifrons n. sp., L. celandicus n. sp., L. gibbus n. sp., L. pusillus n. sp., L. deflexus Sjogr., L. ornalus n. sp. Conocoryphe^ glabrata n. sp. Dolichometojnis n.g., D. svecicus n. sp. Lichas pachyrrhinus 6 CALIFORNIA ACADEMY OF SCIENCES. Dalman, L. norvegicus n. sp. Platymetopus planifrons n. sp. Lichas conformis n. sp., L. cicatricosus Lov., L. 6-spinus n. sp., L. dalecarlicus n. sp., Z,-. gothlandicus n. sp., Z/. aculeatus n. sp. Platymetopus lineatus n. sp. Sphcerexochus? davifrons Sars. (nee. Dalm. nee. His.), 5. ? de- jlexus n. sp., S. wegelini n. sp., S. conformis n. sp., 5. granulatus n. sp. Sphcerocoryphe granulata n. sp. Deiphon Icevis n. sp., Z>. punctatus n. sp, Cyrtometopus speciosus Dalm. (non Sternb. Sars. His.), C.foveolatus n. sp.. (7. o^mzs n. sp., (7. sarsi n. sp., 6Y. tumidus n. sp., (7. gibbus n. sp. (7Az- rwrws speciosus His. (non Dalni. Sars. Sternb.), (7. glaber n. sp., (7. pttwc- £aor Treinadoc Slates: Conocoryphe de- pressaa Salter. Angelina sedgwickii Salter. Asaphus aflinis MoCoy. Niobe homfrayi Salt. Psilocephalus innotatus Salt. Cheirurus frederici Salt. Fossils of -the Llandeilo: Agnostus maccoyii Salt. Asaphus tyrannus Murch. Ogygia buchii Brong. dSglina binodosa Salt. Trinucleus fim- briatus Murch., T. lloydii Murch. Ampyxnudus, Murch. Calymene du- plicata Murch. Part 2, 1869, contains descriptions of Fossils of the Caradoc or Bala: Cy there? umbonala Salt. Primitia maccoyi Salt. Beyrichia complicata Salt. Agnostus trinodus Salt. Illi&nus bowmani Salt. Trinucleus con- centricus Eaton. Lichas laxatus McCoy. Calymene brevicapitata Port. Homalonotus bisulcatus Salt. Sphcerexochus mirus Beyr. Phacops brong- niartii Port. Part 3, 1871— Fossils of the Wenlock: Calymene blumenbachii Brong. Encrinurus punctatus Briinn., E. variolaris Brong. Illcenus barriensis Murch. Phacops caudatus Briinn., P. downingice Murch. Homalonotus delphinocephalus Green. Proetus latifrons McCoy. Beyrichia kloedeni McCoy. Fossils of the Ludlow: Homalonotus knightii Kdnig. Ceratiocaris papilo Salter. Pterygotus problematicits Ag. Eurypterus pygmceus Salt. Ptery- gotus bilobus Salt. Part 4, 1875 — Devonian: Phacop's latifrons Bronn. Harpes macro- cephalus Gold. Homalonotus armatus Burm. Bronteus flabellifer Gold. Estheria membranacea. Entomis serrato-striata Sandb. Pterygotus an- glicus Ag. Stylonurus symondsii Salter. Fossils of the Carboniferous : Brachymetopus ouralicus Vern. Phillipi sia pustulata ,Schl. Grtffithides globiceps Phillips. Leper ditia subrecta Port. Entomoconchus scouleri McCoy. Belinurus regiius Baily, B . tri- lobitoides Buckland. On Trilobites and other fossils from Lower or Cambro-Silurian strata in the County of Clare. In Jour. Royal Geol. Soc. Ireland, vol. 17, pt. 1, 1886, p. 21. Banks (R. W.) On the Tilestoiies or Downton sand- stones, in the neighborhood of Kington, and their con- tents . Iu Quart. Jour. Geol. Soc. London, vol 12, 1856, p. 93, plate. Pterygotus sp.? Eurypterus pygmceus Salter. Himantopterus banksi- Salter. Barrande (Joachim). Notice preliminaire sur le sys- teme Silurien et les Trilobites de Boheme, Leipsic, 1846, 97 pp. 10 CALIFORNIA ACADEMY OF SCIENCES. Etage A. Etage B. Etage C: Paradoxides tessini, P. linncei, P. rotundatus, P. pusillus. Conocephalus sulzeri, O. striatus, C. emmrichii, C. coronatus. Ellipso- cephalus hoffi, E. nanus, E. tumidus. Arion n. g., A. ceticephalus. Sao n. g., S. hirsuta. Trilobites decipiens. Battus integer, B. bibullatus, B. nudis, B. granulatus, B. orion, B. affinis, B. rex, B. cuneifer. Hydro- cephalus n. g., H. carens, H. saturnoides. Monadina n. g., M. distincta, M. omicron. Trilobites desideratus. Etage D: Phacops procevus, P. socialis, P. hawlei, P. sclerops, P.elon- gatus, P. dubius, P. phillipsii. Calymene pulchra, C. parvula, C. incerta. Odontopleura buchii, B. primordlalis. Asaphus ingens, A. nobilis. Cheiru- rus claviger. Trinucleus ornatus, T. goldfussii, T. bucklandi. Caphyran. g., C. radians. Dione n. g., D.formosa. Illcenus perovalis, I. crassicauda. Trilobites lindaueri. Egle n. g., E. rediviva. Battus tardus. Etage E: Phacops fcecundus, P. bulliceps, P. trapeziceps, P. glockeri, P. inter 'costatus. Tril. heteroclytus. Arethusa n. g. A. koninckii. SpcK- rexochus mirus. Asaphus (Nileus) bouchardi. Cheirurus insignis. O. beyrichi, C. quenstedti. Calymene diadamata, C. baylei, C. beaumonti. Stau- rocephalus n. g., S. murchisoni. Lichas scabra, L. propinqua, L. palmata, L. simplex. Harpes tenui punctatus. Odontopleura prevosti. 0. dufrenoyi, 0. mira, 0. verneuili, 0. leonhardi, 0. minuta, O. tricornis. Cyphaspis burmeisteri, C. depressa. Bronteus partschii, B. haidingeri, B. amhignus. Phceton n. g., P. archiaci, P. membranaceus, P. striatus. Proetus ryck- holtii, P. intermedius, P. decorus, P. vemistus. Etage F: Phacops intemedius, P. breviceps, P. hausmanni, P. Icevigatus. Bronteus campanifer, B. palifer, B. angusticeps, B. zippei, B. umbellifer, B. formosus. Lichas haueri, L. parvus. Proetus concinnus, P. lepidus, P. tuberculatus, P. myops, P. incequicostatus . Harpes ungula. Cheirurus insignis, C. cordce, C. gibbus. Odontopleura verneuili, 0. hornesii, 0. lacerata. Cyphaspis clavifrons, C. cerberus. Trilobites orbitatus. Etage G: Phacops hausmanni, P. spinifer, P. reussii, P. protuberans, P. bronnii. Bronteus brongniarti, B. porosus, B. pustulatus, B. formosus. Cheirurus sternbergi, C. gibbus. Cyphaspis clavifrons, Odontopleura dere- licta. Proetus gracilis, P. sculptus, P. lovenii. Nouveaux Tribolites. Supplement & la notice preliminaire sur le systeme Silurien et les Trilobites de Boheme. Prague, 1846, 40 pp. Etage C: Sao nana. Etage D: Cheirurus claviger, C. scuticauda, C. globosus, C. radiatus. Phacops parabola, P. dashayesii, P. solitarius. Tril. musca. Ampyx portlockii. Odontopleura keyser lingii. Illcenus wahlenbergii. I. hisingeri. Etage E: Arethusa nitida. Harpes crassifrons. Etage F: Proetus unguloides, P. complanatus, P. fallax, P. discretus. BIBLIOGRAPHY OF PALAEOZOIC CRJJSTACEA. 11 Phctton planicauda, P. latens. Bronteus elongates, B. brongniarli. Odonto- cephalus subterarmata. EtageG: Harpes d'orbignyanus. Cheiruru* minutus. Phacops hoe.ning- hausii. — Ueber das Hypostoma und Epistoma, zwei analoge aber verschiedene Organe der Trilobiten. In Neues Jahrbuch fiir Mineral., 1847, p. 385, pi. 8. 1849. The author illustrates the hypostomae of Phacops socialis, P. breviceps, also that of Cheirurus insignia. The generic term Dione is herein modified to that of Dionide, p. 391. Sao hirsuta Barrande, ein Bruchstiick aus dem " Syst^me silurien du centre de la Boheme." In Neues Jahrbuch fiir Mineral., 1849, p. 385, pi. 7. Note on Trilobites. In Ber. Mittheil. Freunde Naturw., Wien, vol.4, 1849, p. 353. Noticed by J. W. Salter. In Quart. Jour. Geol. Soc. London, vol. 5, 1849, pt. 2, p. 34. Deiphon forbesii, neuer Trilobit aus Bohmen. In Ber. Mittheil. Freunde Naturw.,. Wien, vol. 5, 1850, p. 6. Versuch einer Klassification der Trilobiten. In Neues Jahrbuch fiir Mineral, 1850, p. 769. SystSme silurien du centre de la Boheme. 1* partie. Recherches paleontologiques. Prague et Paris, 1852. Vol. 1. Text, Crustaces, Trilobites, and descriptions of the following new genera: Arionelltts n. g. Arethusina (generic term changed from that of Arethus to A rethusina) . Dione (generic term changed from Dione to Dionide). /Eglina n. g. Cromus n. g. Telephus n. g. Harpes ungula JSternb., H. vittatus Barr., H. venulosus Cord., H. montagnei Cord., H. reticulatus Cord., H. crassifrons Barr., H. d'orbignyanus Barr. Remopleurides ra- dians Barr. Paradoxides bohemicus Boeck.. P. sacheri Barr., P. spinosus Boeck, P. rotundatus Barr., P.inflatus Cord., P. imperialis Barr., P. or- phanns Barr., P. pussillus Barr., P. rugulosus Cord., P. desideratus Barr. Hydrocephalus carens Barr., H. salnrnoides Barr. Sao hirsuta Barr. Arionellus ceticephalus Barr. Ellipsocephalus hoffi Schlott, E. germari Barr. Conocephalites sulzeri Schlott, C. coronatus Barr., C. striatus Emm., C. emmrichi, Barr. Proetus, Section 1 with 9 segments: Pretus sculptus Barr. Section 2 with 10 segments: Proetus ryckholti Barr., P.frontalis Cord., 12 CALIFORNIA ACADEMY OF SCIENCES. P. superstes Barr., P. myops Barr., P.unguloides Barr., P. orbitatus Barr., P. retrofiexus Barr., P. micropygus Cord., P. ascanius Cord., P. serus Barr., P. lusor Barr., P. gracilis Barr., P. incKquicostatus Barr., P. fallax Barr., P. latens Barr., P. heteroclytus Barr., P. bohemicus Cord., P. ne- fflectus Barr., P. tuberculatus Barr., P. love.ni Barr., P. memnon Qord., P. natator Barr., P. insons Barr., P. mcestus Barr., P. eremita Barr., P. curtus Barr., P. complanatus Barr., P. intermedius Barr., P. lepidus Barr., P. venustus Barr., P. decorus Barr., P. astianax, Cord., P. archiaci Barr., •P. planicauda Barr. (Proetus (Phaetonellus) planicauda Novak), P. stri- atus Barr. Phillipsia parabola Barr. Cyphaspis halli Barr., C. bur- meisteri B.irr., C. barrandei Cord., C. cerberus Barr., C. davidsoni Barr., C. convexa Cord., C. novella Barr., C. humillima Barr., C. depressa Barr. Arethusina konincki Barr., A. nitida Barr. Phacops cephalotes Cord., P. sternbergiCord., P. intermedius Barr., P. boecki Cord., P.fecundus Barr., P. breviceps Barr., P. bronni Barr., P. miser Barr., P. signatus Cord., P. volborthi Barr., P. glockeri Barr., P. trapeziceps Barr., P. bulliceps Barr. Dalmania hausmanni Brong., D. auriculata Dalm., D. spinifera Barr., D. reussi Barr., D. rugosa Cord., D. cristata Cord., D. fletcheri Barr., D. maccoyi Barr., Z>. hawlei Barr., D. deshayesi Barr., D. dubia Barr., D. socialis Barr., D. solitaria Barr., D. phillipsi Barr., D. morrisiana Barr., D. orba Barr. Calymene blumenbachi Brong., (7. diademata Barr., C. in- certa Cord., C. declinata Cord., C. parvula'BarT., C. baylei Barr., C. tenera Barr., C. pulchra Barr. Homalonotus bohemicus Barr., H. rams Cord. Lichas scabra Beyr., L. palmata Barr., L. haweri Barr., L. ambigua Barr., L. heteroclyta Barr., L. simplex Barr. Trinucleus bucklandi Barr., T. ornatus Sternb., T. goldfussi Barr., T. ultimus Barr. Ampyx portlocki, Barr., A. rouaulti Barr, Dionide formosa Barr. Asaphus nobilus Barr., A. ingens Barr. ^Eglina rediviva Barr., A. speciosa Cord., A . pachycepha- lus Cord. Illcenus hisingeri Barr., /. panderi Barr., /. wahlenbergianus Barr., /. salteri Barr., /. transfuga Barr., /. bouchardi Barr., /. tardus. Acidaspis primordialis Barr., A. keyserlingi Barr., A. tremenda Barr., A. verneuili Barr., A. vesiculosa Beyr., A, buchi Barr., A. leonhardi Barr. A. hernesi Barr., A. geinitziana Cord., A. rcemeri Barr., A. dormitzeri Cord., A. minuta Barr., A. pectinifera Barr., A. derelicta Barr., A. rude- ralus Cord., A . propinqua Barr., A. mira, A. prevosti Barr., A. dufrenoyi Barr., A. porllocki Cord., A. tricornis Barr., A. solitarisBarT., A. lacerata Barr., A. truncala Cord., A. subterarmata Barr., A. radiata Goldf., A. monstrosa Barr., A. laportei Cord., A. grayi Barr. Cheirurus clavinger Beyr., C. globosus Barr., C. insocialis Barr., 6\ tumescens Barr., C. scuti- cauda Barr., C. insignis Beyr., C. obtusatus Cord., (7. hawlei Barr., C. bey- richi Barr., C. quenstedti>~Barr., C. gibbbus Beyr., C. sternbergi Boeck., C. cordai Barr., (7. pauper Barr., C. bifurcatus Barr., C. minutus Barr. Pla- coparta zippei Cord. Sphaerexochus mirus Beyr. Staurocephalus mur- chisoni Barr. Deiphon forbesi Barr. Dindymene f rider id- augusti Cord., D. haidingeri Barr. Amphion lindaueri Barr. Cfromus intercostatus BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 13 Barr., C. beaumonti Barr., C. bohemicus Barr., C. tran'siens Barr. Bronteus elongatusT$&TT., B. sieberi Cord ., B.thysanopeltis~B&rr., B. campanifer Beyr., B. dormitzeri Barr., B. zippei Barr., B. ccelebs Barr., B. fosmosus Barr., B. oblongus Cord., B. kutorgai Barr., B. transversus Cord., B. viator Barr., B. furcifer Cord., B. palifer Cord., B. simulans Barr., B. planus Cord., B. brongniarti Barr., B. tenellus Barr., B. partschi Barr., B. angusticeps Barr., B. haidingeri Barr., B. nuntius Barr., B. spinifer Barr., B. umbelli- fer Beyr., B. edwardsi Barr., B. porosus Barr., B. brevifrons Barr., B. infaustus Barr., B. richleri Barr., B. pustulatus Barr., B. hawlei Barr. Telephusfractus'BaTT. Ag'ostus integer Beyr., A. nudus Beyr., A. bibul- latus Barr., A. rex Barr., A. garanulatus Barr., A. tardus Barr. Trllo- bites inchoatus Barr., T. musca Barr., T. infaustus Barr., T. mutilus Barr., T. ferus Barr., T. orphanus Barr. Harpes naumanni Barr. Paradoxides lyelli Barr., P. expectans Barr. Dalmanites angelini Barr. Acidaspis desiderata Barr. Cheirurus neglectus Barr. Acidaspis rebellis Barr. A. hawlei Barr. Deiphon forbesi Barr. Harpides grimmi Barr. Phacopn hoeninghausi'BaTT., P.emarginatus'B&rr. Calymene inter 'jecta Cord. llloznus distinctus Barr. On Ceratiocaris bohemicus. In Neues Jahrbuch fiir Mineral., 1853, pt. 3, pp.' 335-347. On p. 335 of this article there is a review of Dr. D. D. Owen's Kept. Geol. Survey Wisconsin, Iowa, and Minnesota. The author gives a rough wood cut of Ceratiocaris bohemicus. Note sur quelques nouveaux fossiles decou- verts aux environs de la ville de Rokitzan, danslebassin silurien du centre de la Boheme. In Bull. Soc. Geol. France, 2d series, vol. 13, 1856, p. 532. Mere mention of locality and period. Wiedererscheinung der Gattung Arethusina Barrande. In Neues Jahrbuch fiir Mineral., 1858, p. 257, 1 pi. Arethusina sandbergeri Barr., A. konincki Barr. Documents anciens et nouveaux sur la fauiie primordiale et le Syste"me Taconique en Anierique. In Bull. Soc. Geol. France, 2d series, vol. 18, 1861, pp. 203-321, pis. 4,5. Paradoxides asaphoides Emmons. P. thompsoni Hall. P. macro- cephalus Emmons. P. vermontana Hall. Peltura(0lenus)holopyga Hall. Atops trilineatus Emmons. A. punctatus Emmons. Triarthrus becki Green. Microdiscus quadricostatus Emmons. 14 CALIFORNIA ACADEMY OF SCIENCES. t [. Reapparition du genre Arethusina Bar- rande. II. Faune silurienne des environs de Hof, en Baviere. Prague et Paris, 1868. Arethusina sandbergeri, A. konincki. Conocephalites bavaricus Barr., Bavarilla (n. sub. gen. Conocephalites), B. hofensis Barr. Conocephalites? m'dnsteri Barr., C. geinitzi Barr., C. ivirthi Barr., C. ? problematicus Barr., C. quaaitm'BBXi., C. innotatus Barr., C.extremus Barr., C. deficiens Barr., (7. discrepans Barr. Olenus guembeli Barr., O.frequens Barr., 0. expectans Barr. Agnostus bavaricus Barr. Asaphus wirthi Barr. Lichas primulus Barr. Calymene tristani var. bavarica Barr. Cheirurus gracilis Barr., C. discretus Barr. Trilobites prcevalens Barr., T. corpulentus Barr. Trilo- bites V. X. Y . and Z. Trilobites. I. Resume general de nos etudes sur revolution des Trilobites. II. Distribution verticale des Trilobites dans le bassin silurien de la Boheme. III. Parallele entre les Tribolites et Cephalopodes siluriens de la Boheme. IV. Epreuve des theories paleontolo- giques par la realite. Prague et Paris, 1871. SystSme silurien du centre de la Boheme. lre .partie. Recherche paleontologiques. Supplement au vol. 1. Trilobites. Crustaces divers et Poissons. Prague et Paris, 1872, 32 pis. Trilobites. Carmon n. g. Telephus 11. g. Triopus. Phyllopoda. Ceratiocaris. Aptychopsis n. g. Cryptocaris n. g. Ptero- caris n. g. Ostracodes. Aristozoe n. g. Bolbozoe n. g. Callizoe n. g. Caryon n. g. Crescentilia n. g. Ct/theropsis n. g. Elpe n. g. Hippa u. g. Notho- zoe u. g. Orozoe n. g. Zonozoe, n. g. Cirrhipediae. Anatifopsis n. g. PlumuUtes n. g. Bactropus n. g. Dryalus n. g. Harpes benignensis Barr., H. crassifrons Barr., H. naumanni Barr., H . primus Barr., H. transiens Barr. JRemopleurides radians Barr. Paradox- ides expectans Barr., P. pusillus, P. rugulosus Cord. Ellipsocephanus ger- mari Barr., E. hojfi Schlot. Proetus comatus Barr., P. frontalis Cord., P. lusor Barr., P. micropygus Cord., P. ? perditus Barr., P. ? primulus Barr., P. superstes Barr., P. vicinus Barr. Phillipsia parabola Barr. Car- mon mutilus Barr., C. primus Barr. Cyphaspis coronatus Barr., C. sola Barr. Harpides grimmi Barr. Phacops fecundis Barr., var. communis Barr., also var. degener Barr., P. fugitivus Barr., P. modestus Barr. Dalmanites angelini Barr., D. atavus Barr., D. hawlei Barr., D. mac- BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 15 coyi Barr., D. oriens Barr., D. perplexus Barr., D. spinifera Barr. Caly- mene arago Kou., C. bifida Barr., C. blumenbachi Brong., C.pulchra Barr. Homahnotus bohemicus Barr., H. inexpectatus Barr., H. medius Barr., H. minor Barr., H. rarus Cord. Lickas avus Barr., L. branikensis Barr., L. incolaB&TT., L. rudis Barr. Trinucleus bucklandi Barr., T. reussi Barr., T. ultimus Barr. Ampyx grains Barr., A. porllocki Barr., A. tenellus Barr. Dionide formosa Barr. Asaphus alienus Barr., A. nobilis Barr., A. quidum Barr. Ogygia desiderata Barr., O. discreta Barr., O. sola Barr. Barrandia crassa Barr. Aeglina armata Barr., A. princeps Barr., A. prisca Barr., A. rediviva Barr., A. speciosa Cord., A. sulcata Barr. Illcenus ad vena Barr., /. aratus, I. bohemicus Barr., /. bouchardi Barr., I. calvus Barr., /. hospes Barr., /. katzeri Barr., /. oblitus Barr., /. puer Barr., /. zeidleri Barr. Acidaspis buchi Barr., A. derelicta Barr., A. monstrosa Barr., A. orphana Barr., A. peregrina Barr., A. pigra Barr., A. rara Barr., A.sparsa Barr., A. spoliata Barr., A. tricornis ? Barr., A. Ursula 'Ban., A. victima Barr. Cheirurus comes Barr., C. completus Barr., C. cordai Barr., C. fortis Barr., C. gryphus Barr., O. insocialis Barr., C. neglectus Barr., C. neuter Barr., C. pater Barr., C. pectinifer Barr., C. sternbergi Boeck, C. I'inculum Barr. Areia bohemica Barr., A.fritschi Barr. Pla- coparia zippei, P. gandis Cord. Sphcerexochus mirus Beyr., S. bohemicus Barr , S. latens Barr., S. ? ultimus Barr. Deiphon forbesi Barr. Dindy- mene bohemica Barr., D.frid. augusti Cord. Amphion senilis Barr. Cro- mus beaumonti Barr., C'. bohemicus Barr. Bronteus acupunctatus Barr., B. asperulus Barr., B. billingsi Barr., B. binotatus Barr., B. clementinus Barr., B. expectans Barr., B. ivanensis Barr., B. magus Barr. B. palifer Beyr., B. perlongus Barr., B. pustulatus Barr., B. rhinoceros Barr., B. scharyi Barr., B. sosia Barr., B. tardissimus Barr., B. thysanopeltis Barr., B. umbellifer Beyr. Bohemillastupenda'BaTT. Triopus draboviensis Barr. Agnostus caducus Barr., A. nudus Beyr., A . perrugatus Barr., A. similaris Barr., A. tardus Barr. Trilobites contumax Barr., T. expectatus Barr., T. incongruens'Barr. ^Eglina gigantea Barr. Acidaspis prevosti Barr. Bron- teus furcifer Cord., B. gervilleicans Barr., B. indocilis Barr., B. infaustus Barr. Crustaces divers non Trilobitiques. Phyllopodes: Ceratiocaris bohemi- cus Barr., C. debilis Barr., C. decipiens Barr., C. docens Barr., C. incequalis Barr., also var. decurtata Barr., C. primulus Barr., C. scharyi Barr., C. tardus Barr. Aptychopsis primus Barr. Atychopsis ? Or yptocaris bohe- mica Barr., C. contracta Barr., C. obsoleta Barr., C. pulcha Barr., C. solida Barr., C. mavis, C. tardissima Barr., C. 1 rhomboidea Barr. Pterocaris bohemica Barr. Ostracodes: Aristozoe arnica, A. bisulcata Barr., A. inclyta Barr., A. jonesi'BarT., A. lepida Barr., A. memoranda Barr., A. orphana Barr., A. perlonga Barr., A. regina Barr. Beyrichia bohemica Barr., B. hastata Barr., B. ? barbara Barr. Bolbozoe anomala Barr., B. bohemica Barr., B. jonesi Barr. Callizoe bohemica Barr. Caryon bohemicum Barr. Ores- 16 CALIFORNIA ACADEMY OF SCIENCES. centilla pugnax Barr. Cythere ? bohemica Barr. (7. ? paradoxa Barr. Cfy- thcropsis derelicta Barr., (?./ melonica Barr., 6'. testa's Barr. Elpe inchoala Barr., E. pinguis Barr. Entomis dimidiata Barr., E. migrans Barr., E. pelagica Barr., E. rara Barr. Hippa latens Barr., H. rediviva Barr. Leper- ditiadesiderataJSarr., L. frag His Barr., L. rarissima'Barr., L. solitaria Barr. Isochilina ? formosa Barr. Nothozoe pollens Barr. Orozoe mira Barr. Primitia consobrina Barr. P. debilis Barr., P. fugax Barr., P./wswsBarr., P. modesta Barr., P. monas Barr., P. perforata Barr., P. prunella Barr., P. socialis Barr., P. tarda Barr., P. timida Barr., P. transiens Barr. Zono- zoe drabaviensis Barr., ^. complex a Barr. Eurypterides: Pterygotus bohemicus Barr., P. comes Barr., P. cyrtochela Barr., P. expectatus Barr., P. kopaninensis Barr., P. mediocris Barr., P. nobilis, Barr. Eurypterus pugio Barr. Cirrhipedes : Plumulites bohemicus Barr., P. compar Barr., P. contrarius Barr., P. delicatus'Baric., P. discrelus~Ba,rr.,P.folliculum Barr., P.fraternus Barr., P. minimus Barr., P. regius Barr., P. squamatula Barr. ^4?iata'- fopsis bohemica Barr., A. acuta Barr., A. longa Barr., A. prima Barr. Fossiles incertae sedis: Bactropus longipes Barr., B. tennis Barr. Dry- alus obscurus Barr. and Verneuil (E. de). See Verneuil (E. de) and Barrande (Joachim). Barrett (S. T.) The coralline or Niagara limestone of the Appalachian system as represented at Nearpass's Cliff, Montague, N. J. In Am. Jour. Sci., 3d series, vol. 15, 1878, p. 370. Proctus pachydermatus n. sp. Description of a new Trilobite, Dalmanites dentata. In Am. Jour. Sci., 3d series, vol. 11, 1876, p. 200, plate. On Dalmanites dentata. In Am. Jour. Sci., 3d series, vol. 12, p. 70. Barris (W. H.) New fossils from the Corniferous formation at Davenport. In Davenport Acad. Nat. Sci., vol. 2, 1879, p. 282, pis. 10 and 11. Proetus davenportensis n. sp., pi. 11, fig. 8. Barrels (Charles). Note sur les fossiles de Cathier- ville. In Bull. Soc. Geol. France, 3d series, vol. 8, 1880, p. 266, plate 7- Phacops fecundus, Dalmanites hausmani. BIBLIOGRAPHY OF PALJEOZOIC CRUSTACEA. 17 Recherches sur les terrains anciens des As- turies et de la Galice. In Mem. S«c. Geol. Nord, Lille, vol. 2. 1882, 630, pp. 20 pis. Paradoxides pradoanus Barr., P. barrandei Barris. Conocephalites sul- zeri Zenk., C. ribeiro Barr., C. castroi n. sp. Arionellus ceticephalus Barr. Homalonotus pradoanus Vern. Phacopslatifrons~Bronn. Phillipsia brong- niarti Fischer, P. castroi n. sp., P. derbyensis Mart. Entomis grand-uryi n. sp. Calymene tristani. Illcenus hispanicus Vern. Sur les faunes siluriennes de la Haute-Garonne . Pis. 6, 7. In Annales Soc. Geol. Nord, Lille, vol. 10, 1883, p. 15 1. Dalmanltes gourdoni n. sp. Cyphaspis belloci n. sp. Phacops fecundus Barr. Lichas sp. Ceratiocaris bohemicus Barr. Les appendices des Trilobites. In Annales Soc. Geol. Nord, Lille, vol. 11, 1883-84, p. 228. Menioire sur le calcaire £ polypiers de Ca- brieres (Herault). In Annales Soc. Geol. Nord, Lille, vol. 13, 1885-86, p. 94, plate. Phacops latifrons Bronn., var. occitanicus Trom. Grass. Bronteus meri- dionalis Trom. Grass. Sur la faune de Hont-de-Ver (Haute-Garonne). In Annales Soc. Geol. Nord, Lille, vol. 13, 1885-6, pis. 2, 3. Lichas gourdonni n. sp. Harpes pyrenaicus n. sp. Bronteus raphaeli n. sp. B. trutati n. sp. Dalmanites courdoni Barrois. Cyphaspis belloci Barrois. Phacops fecundis Barr. P. breviceps ? Barr. Sur le calcaire devonien de Chaudefonds (Maine-et-Loire). In Annales Soc. Geol. Nord, Lille, vol. 13, 1885-86, p. 170. Cheirurus gibbus Beyr. Acidaspis vesiculosa Beyr. Bronteus canalicu- latus Gold. Harpes macrocephalus Goldf. Apergu de la constitution geologique de la rade de Brest. In Bull. Soc. Geol. France, 3d series, vol. 14, 1886, pis. 31-33. Homslonotus le hiri Barrois. Faune du Calcaire d'Erbray (Loire Inferieure). Contribution & Petude du terrain Devonien a 1'ouest de la France. Lille, 1889, 346 pp., 17 plates. Harpes venulosus Corda. Bronteus gervillei Barr. Cheirurus sternbergi ? 18 CALIFORNIA ACADEMY OF SCIENCES. Boeck. Cryphceus pectinatus A. Koemer. Phacops fecundus Barr. Pro- etus bohemicus Corda. P. fallax Barr. P. ligeriensis n. sp. P. gosseleti n. sp. P. cornutus Goldf. P. vicinus Barr. Memoire sur la Faune du Gr£s Arinoricain. Soc. Geol. du Nord Annales xix, 1891, p. 134, 5 plates. Myocaris lutraria Salter. Ceratiocaris sp.? Mesothyra oceani Hall Baumer (J. W.) Naturgeschichte des Mineralreichs mit besonderer Anwendung auf Thtiringen. 2 vols. Gotha, 1763-64, 1767. The author gives a brief description of " trigonella striata coiichites trilobus striatus." vol. 1, p. 328, pi. xi, fig. 32 a-b. (Encrinurus sp.) Bayle (E.) Explication de la carte geologique de la France. Vol. 4. Atlas, Paris, 1878. Premiere partie. Fossiles principaux des terrains. Plate 1: Megalaspis desmaresti Broiig., figs. 1-3. Plate 2: Homalonotus gervillei DeVer., figs. 1, 3 and 6. H. brongniarti Deslong., fig. 2. H. vicaryi Salter, fig. 4. H. deslonychampsi Tromelin, fig. 5. Plate 3: Calymene tristani Brong., figs. 1-9. C. aragoi Marie Kouault, fig. 10. Plate 4: Cheirurus sp., fig. 1. Illcenus sp., fig. 2. Phacops latifrons Bronn., figs. 4 and 5. P. potieri, figs. 7-10. Cryphceus michilini Marie Kouault, figs. 18-21. Goldfius gerville Barb. Proetus ce-Tilerti. Phillipsia gemmulifera Phil., fig. 22. Plate 5: Acidasins buchi Barr., fig. 1. Bean (W.) Entomostracans from the Coal Measures of Newcastle-upon-Tyne. In Mag. Nat. Hist. (London), vol. 9, 1836, p. 376. Cypris arcuata now Beyrichia arcuata. Beckmann (J.) Commentatio de reductione rerum fossilium ad genera iiaturalia protyporum. In Novi Comm. Soc. Sclent. Getting., vol. 3, 1873, p. 95. Beecher (C. E.) Ceratiocaridce from the Upper Devo- nian Measures in Warren County. In Second Geol. Survey Pennsylvania, vol. PPP, 1884, 2 pis. Elymocaris n. g. Tropidocaris n. g. Author's edition issued separately, entitled: " Ceratiocaridce from the Chemung and Waverly Groups at Warren, Pa.," with 2 pis., Harrisburg, 1884, 22 pp. 2fr* in ® aris punctata Hall. E. socialis n. sp. Elymocaris siliqua n. sp. bicarinata n. sp. T. inierrupta n. sp. T. alternata n. sp. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 19 Belt (Thomas). On some new Trilobites from the Upper Cambrian rocks of North Wales. In Geol. Mag., vol. 4, London, 1867, p. 294, pi. 12. Agnostus pisiformis Linne var. obesits, A. nodosus n. sp. Olenus gibbosus. On the Lingula flags or Festiniog group of the Dolgelly district. Part iii. In Geol. Mag., vol. 5, London, 1868, p. 5, pi. 2. Conocoryphe ? williamsonii n. sp. C. ? longispina n. sp. C. ? bucephala n. sp. Sphcerophthalmus bisulcatus Phil. Agnostus obtusus n, sp. A. tri- sectus Salt. A. barlowii n. sp. Bergeron (M. T.) Etude paleontologique et strati- graphique des terrains anciens de la Montagne Noire. In Bull. Soc. Geol. France, 3rd series, vol. 15, 1887, No. 5. Harpes. Phacops. Cheirurus. Bergeron (Jules). Sur une formes nouvelle de Trilo- bite de la farnille des Calymenidae (genre Ccdymenella) . In Bull. Soc. Ceol. France, 3d series, vol. 18, 1890, p. 365, plate 5. Calymene declinata Barr. Homalonotus delphinocephalus Green. Caly- menella boisseli n, sp. C. bayani Trom. & Lebesc. Diagnosis of Calymenella: Glabella slighly convex, rounded in front, having three furrows, of which the last two are well marked. The poste- rior furrow is inclined towards the rear, lobes slightly elevated, fixed cheeks wide, limb well developed in front of the glabella sometimes end- ing in a point. Pygidium the same as Calymene. This genus includes within its limits the American species Calymene rostrata Vogdes, and C. nasuta Ulrich. Beushausen (Louis). Beitrage sur Kenntniss des ober- harzer Spiriferensandsteins und seiner Fauna. Inaugural-Dissertation. Gottingen, 1884, p. 31. Liste der aus dem Oberharzer Spiriferensandstein beschriebenen Arten ihrer Verbreitung im rheinischen Unterdevon. Beyrich (Ernst). Ueber einige bohmische Trilobiten. Berlin, 1845, 1 pi. Cheirurus n. g. Sphcerexochus n. g. Trochurus n. g. Cheirurus insignis n. sp. C. claviger n. sp. C. sternbergii Boek. C. gibbus n. sp. Sphcerexochus mirus n. sp. Lichias laciniata (Loven.) L. scabra n. sp. L. boltoni Green. L. dissidens n. sp. Trochurus speciosus n. sp. Bronteus umbellifer n. sp. B. palifer n. sp. B. campanifer n.sp. B. laticauda Wahl. Battus integer n. sp. B. nudus n. sp. 20 CALIFORNIA ACADEMY OF SCIENCES. Untersuchunger liber Trilobiten. Zweites Stuck als Fortsetzung zu der Abhandlung " Ueber einige bohmische Trilobiten." Berlin, 1846, 3 pis. Harpides n. g. Cheirurus gibbus Beyr., C. exsuln. sp., C. ornatus~Dalm. Sphcerexochus n. sp. ? S. mirus Beyr., (S. beyrichi Lindstom), pi. 1, fig. 9. Lichas laciniata u. sp., L. angusta n. sp., L. tricuspidata n. sp., L. scabra n. sp. Arges armatus Gold., A. speciosus Beyr., A. anglicus n. sp. Bronteus campanifer Beyr., B. palifer Beyr., B. pendnlus, B. insignitus Eomer. Odontopleura ovata Emm., 0. mutica Emm., 0. inermis n. sp., 0. brightii Murch., 0. cornuta n. sp., 0. vesiculosa n. sp. Calymene dia- demata~Ba,rT., C. parvula Barr., C. pulchra Barr. Proetus concinnus, P. cornutus. Trinucleus ornatus Sternb. Harpes ungula Sternb. Harpides hospes n. sp. Staurocephalus murchisoni. Ueber Leaia leiclyi. In Zeitsch. Deutsch. geol. Gessel. vol. 16, 1864, p. 363. Bigsby (J. J.) A sketch of the Geology of the Island of Montreal. In Annals Lye. Nat. His. N. Y. vol. 1, 1825, p. 198. The author figures a trilobite (Trinucleus concentricus) pi. 15, fig. 1. Bigsby (J. J.) Description of a new species of Trilo- bite. In Jour, Acad. Nat. Sc. Phila., vol. 4, pt. 2, 1825, p. 365, pi. 23. Paradoxides boltoni (Lichas boltoni). Thesaurus Siluricus. The flora and fauna of the Silurian period. London, 1868. Billings (E.) Fossil foot prints. In Canadian Naturalist, vol. 1, 1856, p. 35, wood cuts. Protichnites septem-notatus. — On some of the characteristic fossils of the Lower Silurian rocks of Canada. In Canadian Naturalist, vol. 1, 1856, p. 39, 11 wood cuts. The author figures Isotelus gigas, Calijmene senaria, and the hypostoma of Isotelus gigas. Fossils of the Upper Silurian rocks, Niagara and Clinton goups. In Canadian Naturalist, vol. 1, 1856, p. 57, 1 pi. Phacops limulurus Green. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 21 Description of fossils occurring in the Silurian rocks of Canada. In Canadian Naturalist, vol. 1, 1856, p. 312, 10 wood cuts. Homalonotus delphinocephalus Green. Report for the year 1856 of E. Billings, Esq., paleontologist, addressed to Sir Win. E. Logan, etc. In Geol. Survey Canada Kept. Progress, 1853-54-55-56, p. 247. Triarthrus spinosus n. sp. Acidaspis horani n. sp. Bronteus lunatus n. sp. Fossils of the Calciferous sandrock, including those of a deposit of white limestone at Mingan, sup- posed to belong to the formation. In Canadian Naturalist, vol. 4, 1859, p. 345, 12 wood cuts. Bathyurus n. g., B. extans Hall (type), B. amplimarginatus n. sp., B. conicus n. sp., B.cybele n. sp. Leperditia anna Jones. Descriptions of some new species of Trilobites from the Lower and Middle Silurian rocks of Canada. In Canadian Naturalist, vol. 4, 1859, p. 367, 18 wood cuts. Illcenus globosus n. sp., /. bayfieldi n. sp., /. americanus n. sp., 7. con- radi n. sp., /. milleri n. sp., /. trentonensis Emmons, /. ovata Con., /. angusticollis n. sp., /. conifronsn. sp., I.clavifronsn. sp., /. arcturus Hall., /. orbicauda n. sp., /. grandis n. sp., Amphion canadensis n. sp., Triar- thrus glaber n. sp., T. beckii Green., T. glaber Billings. Fossils of the Chazy limestone, with descrip- tions of new species. In Canadian Naturalist, vol. 4, 1859, p. 426, 28 wood cuts. Bathyurus angelini n. sp. Harpcs antiquatus n. sp. Description of some new species of fossils from the Lower and Middle Silurian rocks of Canada. In Canadian Naturalist, vol. 5, 1860, p. 49, 16 wood cuts. Dalmanites bebryx n. sp., D. achates n. sp. Phacops orestes n. sp. Cheirurusicarusn. sp. Proetus alaricus n. sp. On some new species of fossils from the lime- stone near Point Levi, opposite Quebec. In Canadian Naturalist, vol. 5, 1860, p. 301, 30 figs. Agnostus americanus n. sp., A. orion n. sp., A. canadensis n. sp. Cono- cephalites zenkeri n. sp. Dickelocephalus magnificus n. sp., D. planifrons 22 CALIFORNIA ACADEMY OF SCIENCES. n. sp., D. oiveni n. sp., D. belli n. sp., D. neyalops n. sp., D. cristatus n. sp. Arionellus cylindicus n. sp., A. sublavatus n. sp. Menocephalus sedgwicki n. sp., M. globosus n. sp. Bathyurus capax n. sp., B. dubius n. sp., 5. bituberculatus n. sp., 5. armatus n. sp., 5. saffordi n. sp., 5. oblonyus n. sp., 5. cordai n. sp., 5. quadratus n. sp. Cheirurus apollo n. sp., (7. m/o; n. sp. Asa{)hus illcenoides n. sp., ^4. goniurus n. sp. — On some of the rocks and fossils occurring near Phillipsburg, Canada East. In Canadian Naturalist, vol. 6, 1861, p. 310, 6 figs. Bathyurus saffordi Bill., B. corded Bill. Menocephalus globosus Bill.? Amphion salteri n. sp. On some new or little-known species of Lower Silurian fossils from the Potsdam group (Primordial zone). Montreal, 1861, 24 pp. This pamphlet, with the addition of a description of Archceocyathus profundus, the suppression of that of A. minganensis, and the notes on pages 10, 11 and 12, was reprinted in the " Palasozoic Fossils of Canada,'' vol. 1, 1865, pp. 1-24, also in part in the "Geol. Vermont," vol. 2, 1861, pp. 942-960. Olenellus thompsoni Hall., 0. vermontana Hall. Conocephalites miser n. sp., C. adamsi u. sp., C. teucer, C. vulcanus n. sp., C. arenosus n. sp. Bathyurus senectus 11. sp., B. parvulus n. sp. Ampyx halli n. sp. Description of a new species of Harpes from the Trenton limestone, Ottawa. In Canadian Naturalist, vol. 8, 1863, p. 36, wood cut. Harpes dentoni n. sp. Geological Survey of Canada. Report of pro- gress from its commencement to 1863. Illustrated by 498 wood cuts in the text. Montreal, 1863. Atlas of maps and sections: contains illustrations of species un- der the following genera: Harpes. Paradoxldes. Conocephalites. Triarthrus. Bathyurus. Proe- tus. Phacops. Dalmanites. Calymene. Lichas. Trinucleus. Asaphus. Illcenus. Acidaspis. Cheirurus. Amphion. Encrinurus. Bronteus. Beyrichia. Leperditia. Isochilina. Eurypterus. Cytheropsis. Description of new species of Phillipsia from the Lower Carboniferous rocks of Nova Scotia. In Canadian Naturalist, vol. 8, 1863, p. 209, 1 wood cut. Phillipsia howi. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 23 Description of some new species of fossils, with remarks on others already known, from the Silurian and Devonian rocks of Maine. In Proc. Portland Soc. Nat. Hist., vol. 1, 1869, p. 104, plate. Dalmanites epicrates n. sp. Cheirurus tarquinius n. sp. Proetus junius n. sp., P. macrobius n. sp. Bronteus pompilius n. sp. Phacops trajanus n. sp. Lick as./ Palaeozoic fossils. Vol. 1. Containing de- scriptions and figures of new or little known species of organic remains from the Silurian rocks. 1861-65. 426 pp. 401 figures. Geol. Survey Canada. The first portion of this work, consisting of 24 pages, was issued in November, 1861, and re-appears in this work, with the exception of the notes on pages 10, 11, and 12 of the original edition. The second part, consisting of pp. 25-56, was issued in January, 1862, and the third, pp. 57-168, in June, 1862; the fourth, pp. 169-344, in February, 1865. Agnostus americanus, A . canadensis, A.fabius, A.galba, A.orion. Am- phion barrande, A. canadensis, A. convexus, A. Julius, A. insularis, A. salt- eri, A. icestoni. Ampyx halli, A. Iceviusculus, A. normalis, A. ratilius, A. semicostatus. Arionellus cylindricus, A. subclavatus. Asaphus canalis, A. curiosus, A. goniurus, A. huttoni, A. illcenoides, A.morrisii. A. pelops, A. quadraticaudatus. Bathyurus amplimarginatus, B. arcuatus, B. armatus, B. bituberculatus, B. breviceps, B. caudalus, B. capax, B. conicus, B. cordai, B. cybele, B. dubius, B.gregarius, B . minganensis, B.nero. B.oblongus, B. parvulus, B. perplexus, B.perspicator, B. quadratics, B. safordi, B. senectus, B.smithii, B . solitarius, B. strenuus, B.timon, B.veiulus. Bathyurellusu.g., B. abruptus, B. expansus, B. formosus, B. fraternus, B. litoreus, B. mar- ginatus, B. nitidus, B. rarus, B. validus. Beyrichia atlantica. Cheirurus apolllo, C. glaucus, C. eryx, C. mercurius, C. perforator, C. polydorus, C. pompilius, C. proltficus, C. satyrus, C. sol, C. solitarius, C. vulcanus. Cono- cephalites adamsii, C. arenosus, C. miser, C. teucer, C. vulcanus, C. zenkeri. Dikelocephalus affinis, D. belli, D. corax, D. cristatus, D. devinei, D. hisin- geri, D. magnificus, D. megalops, D. missisquoi, D. oweni, D. pauper, D. planifrons, D. selectus, D. sesortris. Dolichometopus convexus, D. gibberu- lus, D. rarus. Endymion n. g., see Endymionia meeki. Encrinurus mirus. Harpes dentoni, H. granti, H. ottaivcensis. Harpides atlanticus, H. desertus, H. concentricus. Holometopus angelini. Illcenus americanus, I. arcuatus, I. consimilis, I. consobrinus, I. fraternus, I. incertus, I. simu- lator, I. tumidifrons, I. vindex. Leperditia concinnula, L. turgida, L. ventralis. Lichasjukesii, L. minganensis. Loganellus logani. Menoceph- alus globosus, M. salteri, M. sedgivicki. Niletis affinis, N. macrops, 2i. scrutator. Olenellus thompsoni, 0. vermontana. Olenus logani. Remo- pleurides affinis, JR. canadensis, R. panderi, R. schlotheimi. Shumardia 24 CALIFORNIA ACADEMY OF SCIENCES. n. g., S. glacialis, S. granulosa. Sphcerexochus parvus. Telephus ameri- canus. Triarthrus fischeri. Catalogues of the Silurian fossils of the Island of Anticosti, with descriptions of some new genera and species. 1866. 93 pp., 28 figs. Geol. Survey Canada. Asaphus platycephalus Stokes, A. notans n. sp., A. alacer n. sp., A. megistos Locke. Illcenus orbicaudatus Billings, 7. grandis Billings. Dal- manites calicephalus Hall. Gheirurus pleurexanthemus Green. C. icarus Billings, C. numitor 11. sp. Proetus alaricus Billings. Harpes ottawcensis Billings. Calymene blumembachii Brong. Leperditia canadensia Jones. Cheir2irusinsignisBeyi'., C.nuperusn.sp. Phacops orestes Billings. Dalman- ites macrora ? Aug., D. anticostiensis n. sp. Encrinurus multisegmentatus Port!., E. jmnctatus Briiiin., E. elegantulus n. sp. Sphcerocoruj)he salteri u. sp. ffar2^>es consuetus n. sp. Sphonrexochuscanadensis n. sp. Lichas can- adensisu. sp. Bronteus insularia n. sp. Dionide, 1 perplexa n. sp. Bey- richia decora n. sp. B. veuusta n. sp. Leperditia anticostians Jones. Note on some specimens of Lower Silurian Trilobites. In Quart. Jour. Geol. Soc. London, vol. 26, 1870, p. 479, pis. 31, 32. Asaphus platycephalus Stokes, with some of the legs preserved. - Paleozoic fossils. Vol. 2, pt. 1. 1874. In Geol. Survey Canada, 144 pp., 35 figs, and 9 pis. Proetus phocion u. sp. Agraulos socialis n. sp., A. strenuus n. sp. A. affinis n. sp. SolenopUura communis n. sp. Anapolenus venustus 11. sp. Paradoxides tenellus n. sp., P. decorus s. sp. — On some new or little known fossils from the Silurian and Devonian rocks of Canada. In Canadian Naturalist, new series, vol. 7, 1884, p. 230. Lichas superbus n. sp. — Appendix Geological Survey of Newfoundland Report of Progress for the year 1881. St. Johns, 1882, pp. 1-16, 2 plates. Agraulos socialis n. sp., A. strenuus n. sp. Anapolenus venustus n. sp. Paradoxides tenellus n. sp., P. decor is n.sp. Blumenbach (J. F.) Abbildungen naturhistorischer Gegenstande. Gottingen, 1810. The author remarks on a species of Calymene blumenbachii, which he figures on pi. 50, that " according to all analogy it must have been with- out doubt the petrification of some species of insect without wings." BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 25 The specimen -was from Dudley limestone, and afterwards named by Alex. Brongniart Calymene blumenbachii. Boeck (C.) Notitzer til Lseren oin Trilobiten. In Nyt Mag. Naturvid., vol. 1, Christiania, 1827, p. 11. 1. Trilobitern tessini (Bohemicus). 2. T. spinosus major. 3. T. spi- nosus minor. 4. T. gracilis. 5. T.bucephalus. 6. T.hoffi,. 7. T.sulzeri. 8. T. sternbergi. 9. T. zippei. 10. T. hausmanni. Noticed in Bull. Sci. (Ferussac), vol. 14, 1828, p. 45. Uebersicht der bisher in Norwegen gefun- denen Formen der Trilobiten-Familie. In Gaea Norwegica (Keilhau), Christiania, 1838, pt. 1, p. 138. The species described in this work under the general term of Trilobiten are referred to the following genera: 1. Phacops elliptifrons. 2. Trilobiten elegans to Phacops latifrons'Broun. 3. T. scabes to Lichas nonvegicus Ang. 4. Phacops conicophalhalmus. 5. Phacops extensa. 6. Not denned. 7. Cybele dentata. 8. Dikeloceph- alus serratus. 9. T.Armatus. 10. Dalmanites hausmanni, Trilobiten semi- lunare to Dalmanites caudata. 11. D. mucronatus. 12. Trilobiten plicatus to Cybele dentata. 13. Encrinurius punctatus. 14. Trilobiten sphaericus to Cyphaspis ceratophthalmus . 15. T. clavifrons to Cyrtometopus sarsi Ang., also to Cheirurus speciosus. 16. Calymene blumembachi. 17. Amphion fischeri. 18. Ceratopyge forfteula. 19. Cheirurus acicularis. 20. T. lyra to Ceratopyge forficula. 21. Megalaspis grandis. 22. Ptychopyge angus- tifrons. 23. Ogygia dilatata. 24. Asaphus expansus. 25. Asaphus acu- minatus. 26, Melagaspis limbatuts. 27. Asaphus striatus. 28. Trilo- biten frontalis to Niobe insignis Linrs. in part. 29. Symphysurus palpe- brosus. 30. Trilobiten depressa to Nileus armade llo var. depressa. 31. T. laevis and T. intermedius. 32. T. oblongatus. 33. Symphysurus angus- tatus. 34. Illcenus crassicauda. 35. Dysplanus centrotus. 36. Oyggia asellus. 37. T.gibbosusto Olenus truncatus. O.attenuatus. 38. Sphceroph- thalamus alatus. 39. Eurycare latum. 40. Harpidesrugosa. 41. Trinucleus granulatus. 42. Trinucleus ornatus. 43. T7. trinucleum. 44. 7T. bronni. 45. Ampyx nasutus, A. rostrata. 46. ^4. mammillatus. 47. -4. nasutus. 48. Peltura scarabceoides. Trilobiten pusillus Sars. to Shumardia pusillus. Om Trilobiterne. In Skaud. Naturf. Forhand., vol. 2, 1841, p. 289; Neues Jahrbuch fiir Mineral., 1841, p. 724. Boll (Ernst). Beitrag zur Kenntniss der Trilobiten. In Duuker and von Meyer's Paleeontographica, vol. 1, Cassell, 1846- 1851, p. 126, plate 17. Ampyx bruckneri n. sp. Battus pisiformis. 26 CALIFORNIA ACADEMY OF SCIENCES. Ueber die Arten der Gattung Beyrichia in norddeutschen Silurian-Gerollen . In Zeitschr. deutsch. geol. Gesell., Berlin, vol. 8, 1856, p. 321, 4 figs. A communication from Herr Boll to Herr Beyrich. Beyrichia jonesi, B. spinulosa, B. hians. Die Beyrichien der norddeutscher silurischen Gerolle. In Archiv. Vereins Freunde Naturg. Mecklenburg, 1862, p. 114, pi. 1. Beyrichia tuberculata Boll., B. kockii n. sp., B. protuberans n. sp., B. cincta n. sp., B. dalmaniana Jones, B. buchiana Jones, B. klddenii M'Coy, B. complicata Salter, B. nodulosa n. sp., B. spingera n. sp., B. jonesi Boll., B. maccoyana Jones, B. elegans n. sp., B. salteriana Jones, B. siliqua Jones, B. hians Boll., B. wilkensiana Jones, B. nundula, B. torosa n. sp. Bonnycastle (Capt. R. H.) On the Transition rocks of the Cataraqui. In Am. Jour. Sci., 1st series, vol. 20, 1831, p. 74, plate. Continued from vol. 18, 1830, p. 104. The author illustrates from the transition limestone of Kingston, Canada, under the old name of Entomolithus paradoxus Linne, a specimen of Bathyurus ex tans Hall. Bolsche (W.) Ueber Prestwichia rontunda.* Born (Chev. de). Lithophylacium Borniannm. Index fossilium quae collegit, et in classes ac ordines disposuit. 2 vols. PragaB, 1772. In Crustacea, vol. 2, p. 5. The author illustrates one Bohemian Paradoxides and enumerates six other species of tribolites, with citations to the illustrations of other authors. Entomolithus paradoxus and Entom. incognitus, pi. 3, fig. 6, have been referred by Sternberg to Tril. tessini. Entom. expansus caput truncatus, to Tril. hausmanni Entom. paradoxi caput loeve, to Tril. sulzeri. The last reference is doubtful. ^Born cites Wilken's figure Tab. 7, fig. 36, which is a direct copy of Lhywd's illustration of Trinucleus. The Entomolithus from Andrarum is probably Olenus truncatus. Bromell's woodcut on p. 77 is given as a reference for this species. The Entom. expansus capite laovi tuberculis nullis (Acta Soc. Eeg. Holm, 1759, Tab. 2, fig. 1), from Bohemia is a doubtful species. Bornemann (J. G.) Palreontologisches aus dem cam- brischen Gebiete von Camalgrande in Sardinien. In Zeitschr. deutsch. geol. Gesell., Berlin, 1883, p. 270. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 27 Olenellus zoppei. Conocoryphe sp. ? (Olenus armatus Meng.) Illcenus meneghini. Bradley (Frank). Description of a new Trilobite from the Potsdam sandstone, with a note by E. Billings, of Montreal, Canada. In Proc. Am. Assoc. Adv. Sci., 14th meeting, 1861, 2 woodcuts. Conocephalites miuutus. See, also, Am. Jour. Sci., 2d series, vol. 30, 1860, p. 241; Canadian Nat- uralist, vol. 5, 1860, p. 420. Brady (M. P.) See Jones (T. Hubert), Kirkby (J. W.) and Brady (M. P.). Brocchie (M. P.) Note sur un crustacefossile receuilli dans les schistes d'Autun. In Bull. Soe. Geol. France, 3d series, vol. 8. No. 1, 1880, p. 1, pi. 1. Describes Palceocaris typus Meek & Worthen. Gampsomyx Jimbriatus Jordan. Nectotelson n. g. N. rochei n. sp. Brodie (P. B. ) History of fossil insects in the Second- ary rocks of England. London, 1845, p. 105, pi. 1, % 11. This author describes and figures a fossil from Coalbrookdale resembling the caterpillar of the Emperor moth, which was afterwards described by J. W. Salter under the name of Eurypterus (Arthropleura)ferox. This species is referred by Woodward to the genus Euphoberia, and has no relation with Eurypterus. Brogger (W. C.) Fossiler fra Oxna og Kletten. In Geol. Foreningens Stockholm Forhandl., vol. 2, 1875, 1 pi. Paradoxides kjerulfi Linrs., P. tessini Brong. Agnostus parvifrons Linrs., A. punctuosus Ang., A. fallax Linrs., A. laevigalus. Liostracus ac.uleatus Ang., L. microphtalmus Ang. Andrarums-kalk ved Breidengen i valders. In Geol. Foreningens Stockholm Forbandl., vol. 3. 1876, 1 pi. Agnostus Icevigatus Dalm., A. bituberculatus Ang. Paradoxides forch- hammeri Ang. Liostracus microphtalmus Ang. Solenopleura brachyme- topa Ang. Agnostus aculeatus Ang. Om Trondhjemsfeldtets midlere Afdeling mel- lem Guldalen og Meldalen Christiania. In Vidensk. Selskab. Forhandl., 1877, No. 2, p. 1, 2 pis. JTrilobites n- sp., p. 17, pi. 1, f. 1-7 (Dalmanites). 28 CALIFORNIA ACADEMY OF SCIENCES. Om Paradoxides skifrene ved Krekling. In Nyt Mag. Naturvid., vol. 24, pt. 1, 1878, 6 pis. Etage Ib: Olenellus (Paradoxides) Tcjerulfi Linrs. Arionellus primaevus n. sp. Etage Ic: Paradoxides tessini Broiig., P. rugulosus Cord. Liostracus aculeatus Ang., L. linnarssoni n. sp., L. microphtalmus Ang. Conocoryphe sulzeri Schloth. Elyx latilimbatus n. sp. Conocej)halites ornatus u. sp. Arionellus difformis var. aculeata. Agnostus gibbns Linrs. also var. hybrida, A.fallax Linrs. also var. tricuspis, A. punctuosus Ang. also var. affinls and var. bipunctata, A.incertus n. sp., A.nathorsti n. sp., A . parvifrons Linrs., also var. mammillata and var. nc2ios, A. truncatus n. sp., A. nudus Beyr. var. marginata, A. cjlandiformis Ang. (?) A. A . Icavigatus Dalm. Etage Id: Paradoxides forchammeri. Dolichometopus suecicus. Lios- tracus microphthalmus. Solenopleura brachymetopa, S. holometopa. Ano- mocare excavatum, A. ? magmum n. sp. Ellipsocephalus circulus n. sp. Arionellus difformis and var. aculeata var. acuminata. Agnoslus fallax, A. kjerulfi n. sp., A. nathorsti n. sp., A. aculeatus, A. brevifrons, A. glandiform™, A. Icevigatus also var. armata, forfex and similis, A. bituber- culatus. Die Silurischen Etagen 2 und 3, im Kristian- iagebiet und auf Eker. Kristiania, 1882, 376 pp., 12 plates. Ostracoda: Beyrichia nana n. sp. Isochilina ? socialis n. sp. Trilobitss: Agnost'us pisiformis Linne, also var. socialis Tullb., A. sid- enbladhi Linrs., A. reticulatus Ang. Ampyx domains Ang., A. nasutus Dalm. Trinucleus. Nileus subgenus Symphysurus incipiens n. sp., S. angustatus Sars. & Boeck., S. palpebrosm Dalrn. Subgenus Nileus Dalm. (sens, strict), jiV. limbatus n. sp., N. armadillo Dalm., also var. dej)ressa Sars. & Boeck. var. oblongala Boeck. Niobe obsolela Linrs., N. Iceviceps Dalm., N. insignis Linrs., N. emarginula Aug. Piychopyge angustifrom Dalm., P. limbata Ang. Megalaspis polyphemus n. sp., M. stenorachis Aug., M, planilimbata Aug.? M. explanatce Aug., M. limbata Boeck var. minor, M. limbata Boeck var. typica, M. extenuata Wahl., M. yrandis Sars., M. gigas Aug., M. heroides n. sp., M. acuticauda Ans., M. heros Dalm. Asaphus expansus Linne var. incerta, A. raniceps Dalm., A. acuminatus Boeck, A. striatus Sars., A. striatus Sars. & Boeck form typica. Illcenus subgenus Dysj)lanus centrotus Dalm., I.dalmani Vol- borth. Euloma ornatum Ang. Olenus (sens, strict.), 0. attenuatus Boeck, 0. aculeatus Ang. Subgenus Parabolina spinulosa Wahl., P. heres n. sp. Subgenus Parabolinella n. subgenus P. limitis n. sp., P. rugosa n. sp. Peltura subgeuus Protopeltura n. subgenus P. acanthura Ang. Peltura (sens, strict.), P. bidentata n. sp., P. planicauda n. sp., P. scarabceoides Wahl. also var. acutidens, P. scarabceoides form typica. Subgeuus Cyclog- BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 29 nathus transiem n. sp., C. costatus n. sp., C. micropygus Linrs. Genus (subgenus ?) Triarthrus angelini Linrs. Leptoplastus Section 1 subgenus Leptoplastus subg. Enrycare. Section 2 subgenus Sphceropthalmus subg. Cteiiopyge. Leptoplastus ova- tus Ang.? L. stenotus Ang.? Eurycare latum Boeck, E. augnstatum Ang. Sphcerophtalmus alatus Boeck., S. majusculus Linrs. Ctenopyge spectabilis n. sp., C.? lobata n. sp. Boeckia n. g., B. hirsuta n. sp. Ceratopyge for- ficula Sars. Genus? Conophrys pusilla Sars. Dicelocephalus dicraurus Ang., D. serratus Boeck, subsp. D. angusticauda Ang. Harpides rugosus Sars. & Boeck. JRemopleurides dubius Linrs . Holometopus ? elatifrons Ang. Lichas celorrhin Ang. Cheirurus foveolatus Ang., C. clavifrons Dalm., C. verrucosus n. sp. Amphlon primigenus Ang., A. Jischeri"&ich\r. Cybele bellatula Dalm. Phacops sclerops Dalm. Pardoxides olandicus nivaet ved Ringsaker, Norge. In Geol. Foreningens Stockholm. Forhandl, vol. 6, 1884* 1 pi. Om alderen af Olenelluszone i Nordamerika. In Geol. Foreningens Stockholm Forhandl, vol. 8, 1886, p. 182. Contains important criticisms on American Primodial fossils. Ueber die Ausbildung des Hypostomes bei einigen skandinavischen Asaphiden. In Ofversigt Kongl. Svenska Vet.-Acad. Handl., vol. 11, 1886, 3 pis. Asaphus. Isotelus. Ptychopyge. Megalaspis. Megalaspides n. g. Niobe. Asaphellus. Ogygia. Nileus. Symphysurus. Bromell (M.) Lithographia Suecana. In Acta Literaria Sueciae, vol. 2, Upsaliae, 1725. This work was continued in several parts through this volume, but it is only at p. 493, in the section called "De lapidibus insectiferis Scanices et Gothicis," that the Trilobites are treated. We have there the Oleni of the alum slate and Agnostus pisiformis. A separate edition of the work was printed at Stockholm and Leipzig, in 1740, bearing the same title as the original work. This work contains rough woodcuts of Olenus truncatus Briinn, Agnos- tus pisiformis Linne and Peltura scarabceoides Wahl. Brongniart (Alex.) Histoire naturelle des Crustaces fossiles, sous les rapports zoologique et geologique, savoir les Trilobites. Les Crustaces proprement dits par A.-G. Desnaarest. 11 pis. Paris, 1822. This author was the first [sj'stematic writer upon the Trilobites. He arranges twenty-one species under five new generic names, as follows: 30 CALIFORNIA ACADEMY OF SCIENCES. First genus, Calymene, species 1. C. de blumembach, 2. C. de tristan, 3. C.I variolaire, 4. C,? macroplitcdma. Second genus, Asaphus, species 1. A.? cornigere, 2. A. de debuch, 3. A. de hausmann, 4. A. caudigere, 5. A. large queue. Third genus, Ogygia, species 1. 0. de guettard, 2. 0. de desmarest. Fourth genus, Paradoxides, species 1. P. de tessin, 2. P.spin- ulex, 3. P. scarabo'ide, 4. P.? gibbeux, 5. P. lacinie. Especes de genre incertain: Trilobite granule, T. ponctue, T. bucephale, T. tentacule. Fifth genus, Agnostus, species 1. A . pisijorme. — - — and Desmasrest (A.-G.) Histoire naturelle des Trilobites et des Crustaces. In Jour. Mines, vol. 9, 1822, p. 273. Brongniart (Charles). Note sur un nouveau genre d'Entomostrace fossile provenant du terrains Carboni- fere des environs de St. Etienne. In Amiales Sci. Geol., vol. 6, 1876. Bronn (Heinrich) . Ueber zwei neue Trilobiteii-Arten . In Zeitschr. fiir Mineral., vol. 1, pt. 1, 1825, p. 317, pi. 2. Calymene latifrons n. sp., C. schlotheimi n. sp. Geognostische zoologische Untersuchungen in den russisch-baltischen Provinzen von Herrn Dr. Eduard Eichwald. In Zeitschr. fiir Mineral., vol. for 1828, pt. 1, p. 104. Bronn (H. G.) Lethsea geognostica, oder Abbildungen und Beschreibungen der fiir die Gebirgs-Formationen bezeichnendsten Versteinerungen. Stuttgart, 1835-38. 2 vols., and atlas with 47 pis. Crustaceen vol. 1, 1835, Eurypterus remipes Dekay. EidoteaScoulei. Calymene blumenbachii, C. macrophthalma, C. latifrons, C. schlotheimi Bronn. Trimerus delphinocephalus Green. Dipleura dekayi Green. Asa- phus expansus~L\nn&. Hemicrypturus Green. Nileus, Asaphus ( Nileus ) gigas. Asaphusplatycephalus Stokes. Isotelus gigas DeKay. Asaphus gigas Dalm. Brongniarta isotela Eaton. Illoenus, Asaphus (Illcenus) crassicauda Wahl. Lichas. Ampyx. Asaphus (Ampyx) nasutus Dahlm. Triarthrus beckii Green. Cerurus pleurexanthemus Green. Cryptolithus tesselatus Green. Brongniartia platycephalius Eaton. Homalonotus Jcnightii Konig. Ogygia guettardi Brong. Paradoxides tessini. Conocephalus suheri Schloth, C. costatus Zenk. Ellipsocephalus hojfii Schloth. Otarion di/ractum Zenk. Agnostus pisiformis Linne. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 31 Bronn and Roemer (F.) H. G. Bronn's Lethsea geognostica, oder Abbildungen und Beschreibungeii der fiir die Gebirgs-Formationen bezeichnendsten Verstei- nerungen. 3d ed. Stuttgart, 1851-56. 3 vols. and atlas, 124 pis. Vol. 1, part 2, Palaeo-Lethaea by F. Eoemer. Crustacea vol. 1, p. 525. Entomostraca: Cythere baltica His. Bairdia curta M'Coy. Cypridina serrato-striata Sandb. Cyprella chrysalidea DeKon. Entomoconchus scou- leri McCoy. Beyrichia tuberculata Klod. Dithyrocaris testudineus Scou- ler. Ceratiocaris inornatus M'Coy. Trilobitse: Harpes ungula, H. venulosus. Harpides hospes, H. rugosus. Remopleurides radians. Paradoxides tessini. Hydrocephalus carens. Sao hirsuta. Arionellus ceticephalus. Ellipsocephalus hoffi,. Olenus truncatus. Conocejjhalites sulzeri. Proetus cuvieri, P. bohemicus. Cyphaspis burmeis- teri. Phillipsia derbyensis, P. globiceps, P. gemmulifera. Arethusina konincki. Phacops latifrons. Dalmania hausmanni, D. caudata. Cry- phdeus calliteles, C. lacinialus, C.punctatus, C. stellifer. Calgmene blumen- bachii. Homalonotus delphinoephalus, H. knightii, H. bisulcatus, H. rudis, H. plalynotus, H. rhinotropis, H. armatus, H. crassicauda, H. (Dipleura) dekayi. Lichas scabra. Trinucleus goldfussi. Ampyx tetragonus, A. na- sutus. Dionide formosa. Asaphus expansus, A. (Isotelus) platycephalus. Ogygia buchii, 0. guettardi. Aeglina rediviva. Illcenus crassicauda. Aci- daspis prevosti, A. mira. Ceraurus insignis. Placoparia zippei. Sphcerex- ochus mirus. Staurocephalus murchisoni. Deiphonforbesi. Dindymene haidingeri. Zethus verrucosus. Amphisn fischeri. Encrinurus puncta- tus. Cromus inter co status. Bronteus haidingeri, B. flabellifer. Telephus. Agnostus pisiformis. Poecilopoda: Eurypterus remipes, E. scouleri, E. tetragonophthalmus. Adelophthalmus (Eurypterus) granosus H. v. Meyer. Eurypterus cepha- laspis McCoy. Himantopterus Salter, 1856. Pterygotus anglicus, P. lepto- dactylus. Limulus rotundatus. Gampsonychus Burmeister, 1855, G. Jim- briatus Jordon. Cyclus radialis. Bostrichopus Goldfuss, 1839. B. an- tiquus. Chonionotus Uthanthracis and Arthropleura H. v. Meyer. Cycloph- thalmus Corda, 1835. Note iiber die mit Homalonotus verwandten Trilobitengenera. In Neues Jahrbuch fiir Mineral., 1840, p. 435, pi. 8, figs. 1 a, b. Homalonotus delphinocephalus, and on the subgenera Trimerus and Dipleura Green. Index pakeontologicus, oder Uebersicht der bis jezt bekannten fossilen Orgaaismen, bearbeitet unter 32 CALIFORNIA ACADEMY OF SCIENCES. Mitwirkung der Herren H. E. Goppert und Harm, von Meyer von Dr. H. G. Bronn, Nomenclator paleeon- tologicus in alphabetischer Ordnung. Stuttgart, 1848, 3 vols. Ueber Gampsonyx fimbricatus Jordon aus der Steinkohleii-Formation von Saarbriicken und vom Murg- Thal. In Neues Jahrbuch fiir Mineral., 1850, p. 575. Brueckmann (F. E.) Epistolarum iteneriarum cen- turia. Wolfenbiittelse, 3 vols. In Epist. 23, pi. 2, figs. 1-7, 1732, and Epist. 64, pi. 3, fig. 5, 1737. This author compares the fossil Crustacea with the Mollusca and calls them Armata veneris. Brunnich (F. E.) Beskrivelse over Trilobiten, en Dy- reslsegt og dens Arter, med en nye Arts Aftegning. In Nye Samlig of det Kongelige Danske Videnskabers Selskabs Skrif- ten, Kiobenhavn. 1781, p. 384, 1 pi. This author describes Trilobus (Calymene) tuberculatus, T. (Dalmanites) caudatus (figures of head and pygidium), T. dilatatus, T. (Encrinurus) punctatus. Buch (Leopold von). Beitrage zur Bestimmung der Gebirgs-Formationen in Russland. In Archiv. mineral. Geogn., etc., vol. 15, Berlin, 1840, p. 1, pi. 2. The author's edition was published in Berlin, 1840, 128 pp., 3 plates and one map. Asaphus exj>ansus. Illcenus crassicauda. Calymene polytoma, C. blu- menbachi, including Zethus varrucosus Pander. Phacops sclerops (including Calymene sclerops Dalm., C. macrophthalma Pander, pi. 5, f. 5, a-c, also Brongniart's fig. pi. 1, f. 4, and Calymene do^vnmg^ce Murch, pi. 14, f. 3). Phacops macrophthalma (Zethus uniplicatus Pander, pi. 5, f. 7). Illcenus or Nileus armadillo. Buckland (AVilliam). Geology and mineralogy con- sidered with reference to natural theology. Bridge- water treatise. 2 vols. London, 1837, 87 pis. [4th ed., London, 1869, 2 vols., 90 pis.] Translated into German by L. Agassiz. This work contains an important article on the structure of the eyes of BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 33 Trilobites, also figures of Limulus americanus, Phacops caudatus, mag- nified view of a portion of the eye of Calymene macrophthalmus. Hypos- toma of Asaphus platycephalus Stokes (plate 63, 4th edition). Calymene blumembachii, C. macrophthalmus, Asaphus tuberculatus (Encrinus punc- tatus, A. (Ogygia) debuchii. Paradoxides tessini. Ogygia gueltardii. Asa- phus (Phillipsia) gemmuliferus, A. (Phacops) caudatus (pi. 64, 4th edition). Limulus trilobitoides (pi. 66, 4th edition). This species is now referred to Belinurus trilobitoides Buckland. Bureau (Louis). Note sur deux nouveaux Dalmanites des schistes ardoisiers d'Angers. In Bull. d'Etudes Sci. D'Angers, n. serie, xviii, 1888, p. 183, plate. Dalmanites edivardsi, D. lapeyrei. Burmeister (H.) Die Organisation der Trilobiten, etc. Berlin, 1843, 6 pis. The English translation is entitled: "The organization of Trilobites de- duced from their living affinities, with a systematic review of the species hitherto described by Hermann Burmeister, edited from the German by Prof. Thomas Bell, F. R. S., and Prof. E. F. Forbes, F. K. S." London, Ray Society, 1S46. There is a supplementary appendix by the editors. Burmeister classifies the then known species under 24 genera arranged in the following order: 1. Eurypterus remipes DeKay, E. lacustris Harlan, E. tetragonophthal- mus Fisch. 2. Cytherina baltica His., C.phaseolus His. 1. Trilobitae: Trinucleus caractaci Murch., T. granulatus Wahl., T. fimbriatus, T. or- natus Sternb., T. tessalatus Green. 2. Ogygia buchii Brong., 0. guettardi Brong. 3. Odontopleura ovalaEmm., 0. elliptica. 4. Arges amatus Goldf. 5. Bronteus flabellifer Goldf., B. laticauda Wahl. 6. 'Paradoxides bohe- rnk us Boeck, P. tessini, Entom. bucephalus Wahl. is referred to the hypos- toma of P. bohemicus, P. spinulosus. 7. Olenus truncatus Brtinn, O.for- ficnlu Sars., 0. scarabceoides Wahl. 8. Conocephalus sulzeri, C. striatus. 9. Ellipsocephalus hoffii, Schloth. 10. Harpes ungula Sternb. Section 2 Trilobites having the power of rolling themselves into a ball. 11. Caly- mene tristani Brong., C.polytoma Dalm., C. blumenbachii Brong., C. calli- cephala Green. 12. Homalonotus: (A) Dipleura dekayi Green. (B) Tri- merns delphinocephalus Green. H. knightii Konig., H. herschclii Murch., H. armatns. 13. Phacops latifrons Brong., P. protuberant Emm., P. anchiops Green, P. sclerops Dalm., P, conophthalmus Emm., P. odonto- cephalus Green, P. macrophthalmus Brong., P. rotundifrons Emm., P. proavus Emm., P. hausmanni Broug., P. caudatus Brttnn., P.mucronatus Brong., P. arachnoides Goldf., P. stellifer. 14. Cyphaspis n. g., C. cera- tophthalma Goldf. 15. Proetus cuvieri Steininger. 16. Aeonia n. g. The author refers the following species to this genus: Calymene concinna 3 34 CALIFORNIA ACADEMY OF SCIENCES. Dalm. Asaphus stokesii Murch.; also Aeonia verticalis n. sp. Calymene diops Green. 17. Archegonus n. g. ( Phillipsla and Griffithides Portl.) A. aqualis v. Meyer. 18. Jllcenus crassicauda Wahl., /. giganteus Guettard. This species was named Ogygia desmaresti by Brongniart in 1822. Illcenus (Bumastes) barriensis Murch. 19. Dyaplanus n. g., Z>. centrotus Dalm. 20. Asaphus (Nileus) armadillo Dalm., A. palpebrosus Dalm., A. Ictviceps Dalm., A. expansas Liiiue, A. tyrannus Murch., A. raniceps Dalm., A . ex- tenatus Wahl., A. (Isoldes) platyceplicdus Stokes. 21. Ampyx nasutus Dalm., A. mammillatus Sars., A. rostratus Sars. The appendix contains notes on Calymene variolaris Broug. Tril. punctatus Briinu. Triarthrus beckii Green, etc. 22. Agnostus pisiformis, A. Icevigatus Dalm., A. integer Beyr., A. nudus Beyr., with other enumerated genera and species wholly unavailable for systematic arrangement. The supplementary appendix by Thomas Bell and E. F. Forbes contains an alphabetical list of British Trilobites, also a copy of McCoy's generic description of the following genera: Tiresia, Forbesia, Portlockia, Tri- nodus (Synopsis Silurian Fossils Ireland, 1846); the generic descriptions of Cheirurus, Sphcerexochus, Lichas, Trochurus (Beyrich, Ueber einige bohmische Trilobiten, 1845), and a list of the genera and species described by Barrande) (Notice preliminaire sur le systeme silurien et les Trilobites de Boheme, 1846). Burmeister and Alton (Ed. de). Neue Beobachtun- geii liber die Organisation der Trilobiten. (*) In Zeitung fiir Zoologie, Zootomie und Palaeozoologie, Alton und Bur- meister, Leipsig, vol. 1, 1846, p. 67, pi. 1, figs. 13-19. Callaway (Charles). On a new area of Upper Cam- brian rocks in South Shropshire, with a description of of a new fauna. In Quart. Journ. Geol. Soc. London, vol. 33, 1877, p. 652, plate. Asa2?hus (Asaphellus n.subgen.J homfrayi Salt., A. (Plcitypeliu n. sub- gen.) croftii Callaway. Agnostus dux n. sp. Conocoryphe monile Salter. Olenus salleri Callaway, 0. triarthrus n. sp. Conophri/s n. g., C. salopiensis Callaway. Lichapyge n. g., L. cuspidata Callaway. Primitia sp.? Castelnau (Laporte de). Communique ^ TAcademie des Sciences de Paris la decouverte des pieds des Trilo- bites qu'il aurait vus dans linterier d'un exemplaire en- roule de TAmerique du Nord. In Inst. France, 1842, p. 74; Neues Jahrbuch flir Mineral., 1843, p. 504; Comptes Rendus, vol. 14, 1842, p. 344. (Phacops rana Green.) BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 35 Essai sur le syst^rae silurien de PAmerique Septentrionale. Paris, 1843, 27 pis. Asaphus micrurus, A. limulunts, A.cordieri, A. caudatus, A. edwardii, A. murchisoni. Homalonotus giganteus, H. herculaneus, H. atlas. Arcti- nurus n. g., A. boltoni. Calymene bufo. Odontocejjhalus. Acantholoma. Aspidolites. Discranurus. The author illustrates plate 2, figs. 1-4, several sections of Phacops Info Green, from Capon, Virginia. The first figure shows a transverse section made in the rear of the eyes. Immediately below the axis there is a large cylindrical spot and another on the right side occupying the position of a posterior pair of cephalic legs. Fig. 4 gives a longitudinal section, with two spots corresponding to two thorax segments. On p. ix we find the following remarks: " Upon a transverse section of the thorax of a specimen of Calymene from North America. We perceive a ferruginous spot which occupies the place where one ought to find the cylindrical trunk of the animal, and a little lower down on the right side we distinguish another spot of the same kind, but of different form, which resembles approximately the marks which might have been made by the print of a foliaceous foot similar to that of a Branchiopodae. In another specimen we find upon a longitudinal fracture two spots of the same color, but straight and elongated, which seem to correspond to two distinct rings of the thorax, and which could very well be of the same nature as those seen upon the face of the preceding specimen." Champernowne (A.) Note on a find of Homalonotus in Red Beds at Torquay. In Geol. Mag., new series, decade 2, vol. 8, 1881, p. 487. Chapman (E. J.) Asaphus canadensis. In Canadian Jour., new series, vol. 1, 1856, p. 482. A review of the Trilobites, their characters and classification. In Canadian Jour., new series, vol. 1, 1856, p. 271, woodcuts. Trinucleus concentricus. In Canadian Jour., new series, vol. 3, 1858, p. 414, woodcut. On some new Trilobites from Canadian rocks. In Annals Mag. Nat. Hist., 3d series, vol.2, 1858, p. 9, 2 figs. Asaphus canadensis n. sp., A. halli n. sp. On some new Trilobites from. Canadian rocks. In Canadian Jour., new series, vol. 3, 1858, p. 230, 2 woodcuts. Asaphus canadensis, A. halli. 36 CALIFORNIA ACADEMY OF SCIENCES. On the hypostoma of Asaphus canadensis, and on a third new species of Asaphus from the Canadian rocks. In Canadian Jour., new series, vol. 4, 1859, p. 1, 2 figs. Asaphus canadensis, A. hincksii n. sp. On the probable nature of the supposed fossil tracks known as Protichnites, etc. In Canadian Jour., new series, vol. 16, 1877, p. 7. Some remarks on the classification of the Trilobites as influenced by stratigraphic relations; with outlines of a new grouping of these forms. In Trans. Koyal Soc. Canada, vol. ., 1890. Eetrospective view of the suborders Sections and Families. Order Trilobita. Suborder I: Pussilliformes Fam. 1, Agnostidae. Suborder II: Latiformes. 1, Levati Fain. 2, Illaenidae Fain. 3, Asa- phidte. 2, Sulcati Fam. 4, Basilicidae Fam. 5, Dikelocepbalidaa. 3, Palmati Fam. 6, Lichasidae Fam. 7, Bronteidas. 4, Columnati Fam. 8, Phaetonidae Fam. 9, Proetidaa. Suborder III: Conifrontes. 1, Longiconi Fam. 10, Homalonotidaa Fam. 11, Calymenidae Fam. 12, Triarthridae. 2, Curticoni Fam. 13, Cono- cephalidae Fam. 14, Conocoryphidae. 3, Vittati Fam. 15, OlenidaaFam. 16, Arethusinidae Fam. 17, Harpesidas. Suborder IV: Frontones. 1, Annulati Fam. 18, Phacopsidae Fam. 19, Encrinuridae Fam. 20, Cheiruridae. 2, Armati Fam. 21, Acidaspidte Fam. 22, Paradoxidae. 3, Globosi Fam. 23, Trinucleidaa Fam. 24, Ampyxidae Fam. 25, JEglinidae. 4, Oculosi Fam. 26, Bohemillidae Fam. 27, Remoplenridae. Chtchegloff. Sur les Trilobites en general et en par- ticulier sur ceux de Zarskoe-Selo. In Jour, fiir neue Entdeckungen in der Phys. Chem. Natur und Tecli- nologieSt. Petersburg, Nos. 1, 2, 1827. Deucalion i\. g., D. bronyniarti 11. sp., pi. 8, fig. 9b. Clarke (J. M.) New Phyllopod Crustaceans from the Devonian of western New York. In Am. Jour. Sci., 3d series, vol. 23, 1882, p. 476, plate. Spathiocaris n. g. Liscoyariz n. g. Estheria pulex n. sp. Spathiocaris emersonii n. sp. Lisyocaris lutheriu. sp. Cirriped Crustacean from the Devonian. In Am. Jour. Sci., 3d series, vol. 24, 1882, p. 55. Plumilites devonicux. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 37 New discoveries in Devonian Crustacea. In Am. Jour. Sci., 3d series, vol. 25, 1883, p. 120. Diplerocaris n. g., D. pennce-dcedali n. sp., D.procne n. sp., D. pres- cervce n. sp. Ueber deutsche oberdevonische Crustaceen. In Neues Jahrbuch fiir Mineral., 1884, pt. 1, p. 178, 1 plate. Spathiocaris lata Woodward, S. koeneni Clarke, S. ungulina Clarke, S. (Cardiocaris?) congener Clarke. Entomis variostriata Clarke. Dithyocaris kayseri Clarke. On the higher Devonian fauna of Ontario County, New York. In Bull. U. S. Geol. Survey, No. 16, 1885, 3 pis. Ceratiocaris beecheri n. sp., C. longicaudus, C. simplex n. sp. Beyrichia dagon n. sp. Echinocaris whitfiddi n. sp. Spathiocaris emersoni Clarke. Crustacean tracks? The structure and development of the visual area in the Trilobite Phacops rana Green. In Jour. Morphology, vol. 2, No. 2, Nov., 1888, Boston, p. 253, pi. 21. The Hercynian question. A brief review of the development and present status, with a few remarks upon its relation to the current classification of American Palaeozoic faunas. In 42d Kep. N. Y. State Mus., 1889, p. 408. Author's edition, 32 pp. The genus Bronteus in the Chernung rocks of New York. In 42d Eep. N. Y. State Mus., 1889, p. 403, fig. Author's edition, 6 p. Bronteus senescens n. sp. As Trilobitas do Grez de Erere e Maecuru Es- tado do Para, Brazil. In Archivos do Museu Nacional, vol. 9, 1890, 2 plates. Homalonotus oiara n. sp., H. derbyi n. sp., H. (Calymene) acanthurus n. sp. Phacops braziliensis n. sp., P. menurus n. sp., P. scirpeus n. sp., P. ? pullinus n. sp., P. (Dalmanites) macropyge n. sp. Dalmanites mae- curua n. sp.; also var. D. australls n. sp., D. galea n. sp., D. infractus n. sp., D. tumilobus n. sp., D. gemellus n. sp. Dalmanites (Cryphaeus) paituna H. & K., D. gonaganus n. sp. Homalonotus lougicaudatus. Pha- cops anceps n. sp. 38 CALIFORNIA ACADEMY OF SCIENCES. * — The Hercyn-frage and the Helderberge Lime- stone in North America. In American Geologist, vol. 7, 1891, p. 109. Notes on the genus Acidaspis. Author's ed., 1892. Communicated to the N. Y. State Geologist, Dec., 1890. In 44th Kep. N. Y. State Mus., 1892. The author proposes the following scheme of classification: Genus Ceratocejyhala, Warder, 1888. 1. Species having the occipital ring: (a) Smooth, or with a central tubercle. Odontopleura'Emmric'h, type O.omtoEmm. (b) With a single large straight median spine. Acidaspis Murchison, type A. brighti Murch. syn. Acantholoma Conrad, (c) With two straight divergent spines. Cer- atocephala Warder, sensu stricto. Type C. goniata Warder. (d) With two spirally recurved spines of great size. Dicranurus Conrad. Type D. hamatus (Conrad) Hall. 2. Species with confluent glabellar lobes, oblique thoracic pleurae and spineless pygidium. (e) Selenopeltis Corda. Type S. buchi Barr. syn. Polyeres Rouault. (f) Ancyropyge n. subgn. Type Acidaspis romingeri Hall. Ceratocephala goniata Ward. Acidaspis verneuilli Barr. Trape- locera hoernesi Cord. Dicranurus hamatus Conrad. Acidaspis monslrosa Barr., A. brighti^l-arch., A. monstrosa Barr., A. romingeri Hall. Odon- topleura ovata Emm. Selenopeltis stephani Cord. — Note 011 Coronurd aspectans Conrad. The Asaphus diurus Green. Author's ed., 1892. Communicated to the N. Y. State Geologist, Dec., 1890. In 44th Rep. N. Y. State Mus., 1892, p. 105. Coronura diurus Green, pi. 4. Observations on the Terataspis grandis Hall. The largest known trilobite. Author's ed., 1892. Communicated to the N. Y. State Geologist, Dec., 1890. In 44th Rep. N. Y. State Mus., 1892, p. 111. Terataspis grandis Hall, plate. Clarke (W. B.) On the occurrence of Trilobites in New South Wales. In Quart. Jour. Geol. Soc. London, vol. 4, 1848, p. 63 (not descriptive). Claypole (E. W.) Note on a large Crustacean from the Catskill group of Pennsylvania. In Proc. Am. Philos. Soc., Phila., vol. 21, 1883, p. 236, plate. Dolichocephala n. g., D. lacoana n. sp. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 39 On the occurrence of the genus Dalmanites in the Lower Carboniferous rocks of Ohio. In Geol. Mag., decade 3, vol. 1, London, 1884, p. 303. Dalmanites ? cuyahogce n. sp. Coignou (Miss). On a new species of Cyphaspis from the Carboniferous rocks of Yorkshire. In Quart. Jour. Geol. Soc., London, vol.46, 1890, p. 421, 5 woodcuts. Cyphaspis davldsoni n. sp., C. megalops McCoy, C. cerberus Barr., C. coronata Barr., C. acanthina n. sp. Conrad (T. A.) Report on the Palseontological De- partment. In Kept. Geol. Survey, N. Y., 1838, p. 107. Platynotus n. g. Paradoxides boltoni Bigsby is taken for the type. This work also contains a catalogue of the organic remains of New York arranged into six groups. Third Annual Report of the Palseontological Department of the Survey. In Kept. Geol. Survey, N. Y., 1840, p. 199. Odontocephalus n. g., 0. selenurus. Asaphus halli n. sp. Acidaspis tuberculatus. Acanthaloma n. g. On the Silurian system; with a table of the strata and characteristic fossils. In Am. Jour. Sci., 1st series, vol. 38, 1840, p. 86. Description of new genera and species of or- ganic remains. Crustacea. In Kept. Geol. Survey, N. Y., 1841, p. 48 1 pi. Aspidolites n.g. Dicranurus n. g. Asaphus ? acantholeurus, A. ? den- ticulatus, A. nasutus, A. aspectans. Calymene senaria. The plate accompanying this report was distributed with a few copies. Republished in the loth Kept. N. Y. State Cab. Nat. Hist., pi. 11. Cytherina alia. In Geol. Survey, N. Y., pt. 3, comprising the survey of the 3d Geol. Dist. (Vanuxem), 1842, p. 112, fig. 26, No. 6. Observations on the Silurian and Devonian systems of the United States, with descriptions of new organic remains. In Jour. Acad. Nat. Sci., Phila., vol. 8, 1842, p. 228, 6 pis. Asaphus corycceus, A. ? trentonensis. Calymene spinifera, C. camerata. Dipleura. 40 CALIFORNIA ACADEMY OF SCIENCES. The author remarks in regard to Calymene spinifera: "Among the specimens of Lower Silurian fossils of Missouri in the collection of my friend J. N. Nicollet, Esq., I noticed the tail of this curious trilobite, which has on the back of one of the articulations of the middle lobe an erect curved spine, curved towards the caudal extremity, and more than one- third of an inch in length." Conrad's species should replace Cyphaspis girardeauensis Shumard, 1855. Observations on the lead-bearing limestone of Wisconsin, and descriptions of a new genus of Trilo- bites and fifteen new Silurian fossils. In Proc. Acad. Nat. ScL, Phila., vol. 1, 1843, p. 329. Thaleops n. g., T. ovatus n. sp. Corda (A. J. C.) and Hawle (Ignaz). Prodrom einer Monographic der bohmischen Trilobiten. In Abhandl. bohm. Gesell. Wiss., Prag, vol.5, 1847, pp. 129-292, 7 pis. This work is generally attributed to A. J. C. Corda. The 58 new genera described in this work are arranged by Joachim Barrande, Systeme silurien du centre de la Boheme, vol. 1, p. 39, as follows: I. DIVISION. TELEJUEIDES. 1. Phlysacium ) = H d halus Bari, 2. Phanoptes J 3. Crithias 4. Tetracnemis 5. Goniacanthus 6. Enneacnemis 7. Acanthociiernis \ ) = Sao Barr. b. Acanthogramma/ 9. Eudogramma I 10. Micropyge \ 11. Selenosema 12. Staurognius / 13. Herse 1 h = Arionellus Barr. 14. Agraulos J 15. Conocoryphe } 16. Ptychoparia = Conocephalus Zeiik. 17. Cteuocephalus \ 18. Selenopeltis = Acidaspis Murch. 19. Polytomurus = Dionide Barr. 20. Tetrapsellium = Trinucleus Lhwyd. 21. Phalacroma = Agnostus (in part) Brong. 22. Selenoptychus = JEgliiia Barr. 23. Mesospheniscus — Agnostus integer Beyr. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 41 24. Diplorrhina = Agnostus integer. 25. Coudylopyge ^ 26. Lejopyge } Agnostus rex Barr. 27. Microparia=.3Eglina Barr. 28. Plassiacomia— Illsenus Dalm. 29. Cyclopyge=2Eglina (in part) Barr. 30. Alceste=Illaenus (in part) Dalm. 31. Xiphogonium— Proetus Stein. 32. Conoparia=Cyphaspis Burm. 33. Goniopleura=Proetus elegautulus Aug. 34. Aulacopleura — Arethusina Barr. 35. Pharostoma=Calymene Brong. 36. Atractopyge i 37. Odontochile } =Dalmama (in part) Emmnch. (This generic term was used in 1834 fora genus of the Coleoptera.) II. DIVISION. ODONTURIDES. 38. Amphytrion=Kemopleurides Portlock. 39. Arthrorhachis=Agnostus tardus Barr. 40. Peronospsis=Agnostus tardus Barr. 41. Battus=Agnostus integer Barr. 42. Pleurocteniurn=Agnostus granulatus Barr. 43. Thysanopeltis— Bronteus (in part) Gold. 44. Diudymene=Dindyniene Corda. f Proetus (in part) Stein. 45. Prionopeltis=-[ pha?touides Barr< 46. Asteropyge 47. Metacanthus 48. Odontopyge=Olenus spinulosus. 49. Placoparia=Placoparia Corda. 50. Eccoptochile=Cheirurus Beyr. 51. Actinopeltis=Cheirurus Beyr. 52. Trochurus=Staurocephalus Ban-. 53. CorydocephalusN 54. Dicranopeltis ( 55. Acanthopyge =Lichas Dalm' 56. Dicranogmus / ")7. Trapelocera=Acidaspis Murch. 58. Ceratopyge=Olenus forficula Sars. Telejurides: 1, Phlysacium paradoxum n. sp. 2, Phanoptes pulcher u. sp. 3, Crithias minima n. sp. 4, Tetracnemis elegantulan. sp., T. spuria, T. dubia n. sp., T. selenophoran.sp. 5, Goniacanthus abbreviatus n. sp., G. partschii. 6, Enneacnemis n. g., E.lyellii n.sp., E. herschelii n.sp. 7, Herse neubergii. 8, Acanth, verrucosa, A. glabra. 9, Acanthogramma speciosa n. sp., A. verruculosa n. sp. 10, Endogramma salmii n. sp. 11, Micropyge bachofenii 11. sp. 12, Ellipsocephalus gracilis n. sp. 13, Seleno- 42 CALIFORNIA ACADEMY OF SCIENCES. sema thuniin. sp. 14, Conocoryphe sulzeri Sckloth., C. latifrons n. sp., C. mutica n. sp., C. granulata n. sp., C. punctata n. sp. 15, Plychoparia striata Sternb., P.pulchra n. sp. 16, Ctenocephalus n. g., C. barrandei n. sp. 17, Agraulos delphinocephalus n. sp., A. ceticephalus n. sp., ^4. Zo&w- Zosz^s n. sp., ^4. carinatus n. sp., ^4. porosus n. sp. 18, Staurogmus muri- catus n. sp., £. acuminatus n. sp., $. Za. or/o?i n. sp., Z>. umbonata n. sp., Z>. sirius n. sp., Z>. elliptica n. sp., Z>. asperula n. sp., Z). selcno^thora n. sp., Z). monas n. sp., Z). affinis n. sp., Z). cristata n. sp. 5, Condylopyge rex n. sp. 6, Lejopyge laevigata His. Illasnides: 1, Microparia speciosa n. sp. 2, Nileus? acuminatus n. sp., JV. cyclurus n. sp., ^. bouchardii Barr. 3, Symphysurus palpebrosus Dalm. 4, Dysplanus centrotus Dalm. 5, Illcenus limbatus 11. sp., Z. attenuatus n. sp., Z. laticeps n. sp., Z. glaberrimus n. sp., Z. dubius, Z. asaphoides n. sp., Z. subtriangularis n. sp., Z. minutus n. sp. 6, Plcesiacomia rara n. sp. Bronteides: Bronteus campanifer Beyr., 5. zippei Barr., B. aulicus n. sp., 5. transversus n. sp., 5. asperwZwsn.sp., 5. intermixtusu. sp., B.partschii Barr., B.sparsitsn. sp., 5. subtriangularis n. sp., 5. planusn. sp., 5. carz- natusn. sp., 5. #?V/a.s n. sp., 5. palifer Beyr., 5. sculptus n. sp., 5. angus- ticeps Barr., Z?. sieberi n. sp., Z^. oblongus, B. furcife.r n. sp., 5. umbel- lifer Beyr., 5. berkeleyanus n. sp., B.penduhis Beyr., fi. aciculatus n. sp., 5. porosus Barr., Zi. haidingeri Barr., Z?. pulcher n. sp., Z?. brongniartii Barr. 2, Cyclopyye megacephala n. sp., 6'. pachycephala n. sp., (7. raar- ginata n. sp. Phacopides: 1, Alceste latissima n. sp. 2, Ogygia. 3, Asaphus ingens Barr., ^4. nobilis Barr. 4, Hemicrypturus expansus. 5, Archegonus cequalis. 6, Xiphogonium sieberianumn.sp., X. decliven. sp.,'JC. planicauda n. sp., .X". sculptum n. sp. 6, Proetus tuberculatus'Bai'i'., P. bohemicus n. sp., P. lepidus Barr., P. confusus n. sp., P, myop* Barr., P. &ucA» n. sp., P. ^w- fresnoyi n.sp., P.mucronatus n. sp., P.fischeri n. sp., P. 6oop,s n. sp.. P. leiurus n. sp., P. frontalis n. sp., P. elegantulus 11. sp., P. ryckholtii Barr., BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 43 P. ovalifrons n. sp., P. reussi n. sp., P. platycephalus n. sp., P. lovenii Barr., P. convexus n. sp., P. angelini n. sp., P.fallaxEa,rr., P.forchham- meri n. sp., P. micropygus n. sp., P. longulus n. sp., P. mancus, P. asa- phoides n. sp., P. dubius. 7, Phillipsia derbyensis. 8, Griffithides globiceps. 9, Goniopleura elegantulus Loven. 10, Cyphaspis barrandei n. sp. 11, Conoparia cornigera n. sp., C. cerberus n. sp., C. macrocephala n. sp., C. misera n. sp., C. rugosa n. sp., C. asper n. sp., C. convexa n. sp., C. ver- rucosa n. sp., C. glabra n. sp., C. burmeisteri. 12, Olenus gibbosus. 13, Aulacopleura koningkii n. sp., ^4. augustlceps n. g. 14, Calymene parvula Barr., (7. diademata Barr., (7. affinis n. sp., (7. interjecta, C. incerta Barr., C. baylei Barr., C. declinata n. sp. 15, Pharostoma pulchrum Beyr. 16, Homalonotus delphinocephalus. 17, Alraclopyge verrucosa Dalm. 18, Cy- bele bellatula. 19, Encrinurus pnnctalus. 20, Amphion beaumonli. 21, Odontochile hausmanui Brong., O. applanata n. sp., 0. rugosa n. sp., O. cristata n. sp., 0. auriculata, 0. aspera n. sp., O. subdepressa, O. lati- cauda, O. tuberculata n. sp., O. spinifera Barr. 22, Phacops socialis Barr., P. goldfussii n.sp., P.procevus Emm., P. sieberi n. sp., P.ovoideus n. sp., P. quadratus n. sp., P. ruderalis n. sp., P. penlagonus n. sp., P. eich- waldii n. sp., P. phillipsii'B&rr., P. deshayesii Barr., P. hawlei Barr., P. cultrifrons n. sp., P. glockeri Barr., P. horridus n. sp., P; iniermedius Barr., P. breviceps Barr., P. hoserin. sp., P. laticaudan. sp., P. maximus n. sp., P. verrucifer n. sp., P. decorus n. sp., P. reclinatus n. sp., P. sig- natusn. sp., P. hoeninghausii Barr., P. bronui Barr., P. protractus n. sp., P. sternbergii n. sp., P. boeckii n. sp., P. oculatus n. sp. P. cephalotes n. sp., P.foecundus Barr., P. exasperatus n. sp., P. asper n. sp. Part II. Odonturides. Remopleurides : 1, Amphitryon murchisonii n.sp. Remopleundes lalerispina. Battoides: 1, Arthrorhachis tarda Barr. 2, Peronopsis integra Beyr. 3, Battus pisiformis Dalm., B.beyrichii n.sp. 4, Pleuroctenium granu- latum n. sp., P. minutum u. sp. Thysanopeltides: Thysanopeltisspeciosan. sp. Pelturides. Dindymene friderici angusti n.sp., D. speciosa n. sp. 2, Prionopeltis priamus n. sp., P. hector n. sp., P. parts n. sp., P. archiaci Barr., P. polydorus n. sp., P. polymnestor n. sp., P. troilus n.sp., P. teneos n. sp., P. strialus n. sp., P. ascanius n. sp., P. astyanax n. sp., P. memon n. sp. 3, Asteropyge arachnoides. 4, Metacanthus stellifer. 5, Peltura scarabceoides. Cheirurides : 6, Placoparia zippei n. sp., P. macroptera n. sp., P. grandis n. sp. 7, Eccoptochile clavig»ra n. sp., ^7. aspera n. sp., £". perlata n. sp., #. c?rei>o,s^7Barr., 0. tenuispina n. sp., 0. ruderalis n. sp., 0. derelicta Barr., 0. mira Barr., 0. bronni n. sp., 0. hoseri n. sp., 0. dormitzeri n. sp., 0. reichenbachii u. sp., O. nenmanni n. sp., 0. haushoferii n. sp., 0. zenkeri n. sp., 0. steenstrupi n. sp., 0. beyrichii n. sp., 0. dufresnoyi Barr., 0. zenonis 11. sp., 0. Zm- dackeri n. sp., 0. dumortieri n. sp., 0. minuta Barr., 0. geinitziana n. sp., 0. tricornis Barr.. 0. crassicornis, 0. tenuicornis n.sp., O.portlockii n. sp., O. germari n. sp., 0. imperfecta n. sp., 0. laportii u. sp., 0. quinqueloba n. sp., 0. rotundata n. sp., O. trnncata u. sp., O. burmeisteri n. sp., O. impar, u. sp., 0. primordialis~B&,rr. 2, Trapelocera rhabdophora n. sp., 77. verneuillii, T. vesiculosa, T. hoernesii, T. leptodonta. 3, Arges armatus. 4, Cer atopy ye forficula Sars. 5, Ceraurus pleurexanthemus Green. Harpides: Harpes ungula Sternb., /J. concavus n. sp., /f. crassifrons Barr., //. sculptus n. sp., 77. veuulosus n. sp., //. reticulatus n. sp., //. carinatus n. sp., //". convexus n. sp., /J. ruderalis 11. sp., /7. montagnei n. sp., //. d'orbignt/annus Barr. Harpides hospes Beyr. Conocoryphe mutica n. sp. Bronteus clongatus Barr. Cozzens (Issachar). Description of three new fossils from the Falls of the Ohio. In Annals Lyceum Nat. Hist., N. Y., vol. 4, 1846, p. 157, 1 pi. Piliolites n. g. The author therein describes a species of Proetus under the name of Piliolites ohioensis. Da Costa (E. M.) A letter concerning the fossil from Dudley. In Philos. Trans. Koyal Soc., vol. 48, pt. 1, No. 42,, 1753, p. 286, pi. 1, figs. 6 8. Dr. Da Costa herein gives the name of Pediculus marimus major trilobus to then called Dudley fossil (Calymene blumenbachii), and declares it to be a crustaceous animal nearly related to the living Isopodes. Description of a curious fossil animal. In Gentleman's Mag., vol. 25, London, 1754, p. 24, pi. — , fig. 3. (Calymene blumenbachii.) Dalman (J. W.) Nagra petrifacter fundne i Oster- gotlands ofvergangskalk afterknade och beskrifne. In Svenska Veteusk. Akad. Handl., 1824, p. 368, pi. 4. Entomostr. actinurus n. sp. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 45 Om Palaeaderna eller de sa kallade Trilobit- erna. Stockholm, 1826, 6 pis. Svenska Vetensk. Akad. Handl., 1826, p. 226. The German translation bears the following title: Ueber die Palaeaden, oder die sogenannten Trilobiten von J. D. Dalman, von Friedrich Engel- hart, rait 6 Kupfertafeln, Niirnberg, 1828. Dalman arranges 41 species of Trilobites under 5 genera and 4 sub- genera, as follows: Division I. Oculated: 1st genus, Calymene; 2d genus, Asaphus. Division II. Typhlini: 3d genus, Ogygia; 4th genus, Olenus ( Para- doxides Br.) Section 2. Battoides: 5th genus, Battus (Agnostus Br.) Subgenera: 1, Asaphus (Nilens); 2, Asaphus (Illcenus); 3, Asaphus ( Ampyx); 4, Lichas n. g. I. Calymene blumembachii Brong. var. (a) tuberculata, (b) pulchella. 2, Calymene bellatula n. sp. 3, C.polytoma n. sp. 4, C. aclinura Dalm. 5, C. sclerops n. sp. 6, C. punctata Briinn. 7, C. concinna n. sp. II. Asaphus. Sectio 1, genuini: 1, Asaphus mucronatusTSrong. 2, A. caudatus Briinn. Subdivisio 2. Cornigeri ecaudati: 3, A. extenuatus Wahl. 4, A. granulatus Wahl. Divisio II. Mutici: Asaphus angustifrons n. sp. 6, A. expansus. 7, A.frontalis n. sp. 8, A. lcevice.ps n. sp. 9, A. palpebrosus n. sp. Sectio II. Nileus: 10, Asaphus (Nileus) armadillo n. sp. Sectio III. Illaenus. Divisio 1, Cornigeri: 11, Asaphus (Illcenus) centrotus n. sp. Divisio II. Mutici: 12, Asaphus (Illcenus) crassicauda Wahl. 13, A. (Illceuus) laticauda Wahl. Sectio IV. Lichas: 14, Asaphus tact> ;iatus Wahl. Sectio V. Ampyx: 15, Asaphus ( Ampyx ) nasutus n. sp. III. 1, Olenus tessini Brong. 2, 0. bucephalus Wahl. 3, 0. spinulosus Wahl. Divisio II. Mutici: 4, Olenus gibbosus Wahl., 0. scarabceoides Wahl. IV. Battus (Agnostus) Brong. B. pisiformis Linn. In the second part of this work the genera and species are arranged as follows: I. Calyrnene. Sectio 1. Capitis angulis posticis elongatis attenuatis. 1, Calymene variolaris Brong. Sectio 2. Capitis angulis posticis rotund- atis. 2, Calymene blumembachii Brong. 3, C. tristani Brong. 4, C. bel- latulaD&lm. 5, C. polytoma Dalm. 6, C. actinura Dalm. 7, C. -sclerops, C. macrophthalma (Brong. tab. 1, figs. 5, a, b, c). 8, var. B. (Brong. tab. 1, figs. 4, a, b). 9, C.protuberans. 10, C. schlotheimii Bronn. 11, C. latifrons Bronn. 12, C. punctata Briinn. 13, C. concinna Dalm. II. Asaphus. Sectio 1. Genuini Divisio 1. Cornigeri subdivisio 1. Caudati. 1, Asaphus macronatus Brong. 2, A. caudatus Briiun. 3, A. auriculatus Dalm. 4, A. hausmanni Brong. Subdivisio 2. Cornigeri ecaudati. 5, Asaphus granulatus Wahl. 6, A. extenuatus Wahl. Divisio 2. Mutici. 7, Asaphus angustifrons Dalm. 8, A. dilatus Briinn. 9, ? A. buchii Brong. 10, A. expansus Linn. 11, A.frontalis Dalm. 12, A.lcevi- ceps Dalm. 13, A. gigas DeKay. 13b, A. gigas, planus DeKay. 14, A. palpebrosus Dalm. Sectio II (Nileus). 15, Asaphus ( Xileus) armadillo 46 CALIFORNIA ACADEMY OF SCIENCES. Dalm. Sectio III (Illaenus). 16, Asaphus (Ittcenus) centrotus Dalm. Divisio 2. Mutici. 17, Asaphus (lilcenus) crassicauda Wabl. 18, A. (Illanus) laticauda Wahl. Sectio IV? (Lichas). 19, Asaphus lacinlatus Walil. Sectio V (Anipyx). 20, Asaphus ? (Ampyx) nasutus Dalm. III. Ogygia. 1, O. guettardi Brong. 2, 0. desmarestii Broug. IV. Oleiius. Divisio 1. Cornigeri. 1, Olenus tessini Brong. 1 var. B. ? (Paradoxides bohemicus). 2, 0. spinulosus Wahl. 3, 0. bucej)halus Wahl. Divisio II. Mutici. 4, Olenus gibbosus Wahl. Subdivisio 2. 5, Olenus scarabceoides Wahl. V. Battus (Agnostus Brong.) 1, B. pisiformis Linn. Addenda. 1, suheri Schloth. 2, hoffii Schloth. 3, Calymene ? speciosa Dalm. 4, Calymene '? verrucosa Dalm. 5, Asaphus ? schroeteri Schloth. 6 ?, relatus Schloth. 7, pustulatus. 8 ?, granum Schloth. 1, Trilobites spcerocephalus Schloth. 2, T.proUematicus Schloth. 3, T. bUuminosns Schloth. 4, T. tentaculatus Schloth. Arsberattelse om nyare zoologiska arbeten och uwptackter. This work forms a part of the annual report of the keepers of the Swedish State Museum for 1828. It contains (p. 134) under the title of " Nya Svenska Palaeades " a description of the following Trilobites: Caly- mene ornata, C. verrucosa, C. clavifrons, C.?centrina. Asaphus heros, A. platynotus. Nileus ylomerinus. Ampyx pachyrrhinus. Battus hevigatus, B. pisiformis var. sphuger. Nouvelles especes de Trilobites ou Palseades de Suede. In Bull. Ferussac, vol. 17, 1829. A notice of the preceding reference. Dames (W.) Ueber Hoplolichas und Conolichas, zwei Untergattungen von Lichas. In Zeitschr. Deutsch. geol. Gesell., Berlin, 1877, vol. 29, pt. 1, p. 793, 3 pis. The type used for the new genus Hoplolichas is Lichas tricuspidatus Beyr., and for Conolichas, Lichas cequiloba Steiiih. Hoplolichas tricuspidata Beyr., H. proboscidea 11. sp., H. conico-tuberculata Nieszk. Conolichas hus, viz.: Cryptonymus schlotheimii to Asaphus schlotheimii, Cryp. iveissit to Asaphus weissii, Cryp. panderi to Asaphus expansus Wahl. The last five are classed as follows: Cryp. lichtensteinii under Niobe lichentsteinii, Cryp- BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 53 rosenbergii to Illcenus rosenbergii, Cryp. wahlenbergii to Illcenus wahlen- bergii, Cryp. rudolphii to Illcenus rudolphii, Cryp. parktnsonii to Illcenus parkinsonii. This work also contains a description and a figure of Asaphus fischeri (Amphion Jischeri Eich.) The description of two new Carbonic Trilobites are added by Dr. G. Fischer, pp. 53-55, pi. 4, figs. 4 and 5: Asaphus brongniarti, pi. 4, fig. 5, and A . eichwaldi, pi. 4, fig. 4. Valerian von Moller ("Ueber die Trilobiten der Steinkohlen-formation des Ural," 1867, p. 7) refers these species to Phil- lipsia eichwaldi Fisch., applying the term to the non-nmcronate pygidium. The Kussian mucronate species, figured by Eichwald ("Lethcea Rossica, " pi. 54, fig. 10) as Griffithides eichwaldi, was assigned by the same author to Phillipsia mucronata McCoy. Zoologia specialis, quam expositis animalibus turn vivis turn fossibilibus potissimum Rossiae in Uni- versum et Poloniae. Vilnse, vols. 1-3, 1829-31. Vol. 2, 1830, contains descriptions of the following Trilobites: Calymene blumenbachii'BTong., C. Jischeri Erchw. Asaphus mucronalus Dalni. Cryptonymus: 1, C. expansus Wahl. (cornigerus Brong. lichtensteinii Echw.) 2, C. weissii Echw., C. schlotheimii Echw. 4, C. crassicauda Wahl. 5, C. rosenbergii. Nileus armadillo Dalm. Ampyx nasutus Dalm. Die Thier und Pflanzenreste des alien rotheii Sandsteins und Bergkalks in Novogrodschen Gouverne- inent. In Bull. Acad. Petropol. St. Petersburg, vol. 7, 1840. Otarion eichwaldi. This species is referred to Phillipsia mucronata by Moller. Ueber das silurische Schichten-Systeni von Esthland. St. Petersburg, 1840. Krustazeen, p. 64. Calymene odini, C. blumenbachii Brong,, C. downingia Murch., C. ma- ' rophthalma Murch., C. bellatula Dalm., C. zembnitzkii. Amphion (A*a- phus) fischeri. Zethus verrucosus Pander. Cryptonymus punctatus (Wahl.) Eichwald, C. variolaris, C.worthii, Asaphus expansus Wahl., A. weissii, A. ^chlotheimii, A. latus Pander, A. laceniatus Dalm., A. dilatatus Dalm., A. devexiis, A. tyrannus Murch., A. vulcani Murch. Illcenus crassicauda Dalm., /. rosenbergii, I. cornutus Pander, /. perovatis Murch., /. centrotus Dalm. Trinucleus sparkskii. Homalonotus herschelii Murch. Nileus armadillo Dalm. Agnostus nasatus Dalm. 54 CALIFORNIA ACADEMY OF SCIENCES. Die Urwelt Russlands durch Abbildungen er- lautert. 4 pts., St. Petersburg, 1840-48, 14 pis. In the first part of this work, in the list of fossils given on p. 22, Eduard von Eichwald refers three species to Cryptonymus; a generic name which he used in 1825 for an entirely different series of fossil Crustacea. In the present work he substitutes the name for such species as Calymene vario- larls, C. pitnctatus, C. ivorthii, etc, The name is used without a generic description, and only indicated by the above named species. Metopias n. g., p. 60, pi. 3, fig. 4. (Part 2, 1842.) Metopias hilbneri n. sp., M. verrucosus n. sp., M. aries 11. sp. Asaphus obsoletus Phil. Agnostus boeckii n. sp. (part 3, p. 68). — Beitrage zur Geologie und Palseoiitologie Kusslands. Moscou, 1854. Bunodes luntila n.sp. Die Grauwacken Schichteii voii Liev - und Esthland. la Bull. Soc. Imp. des Naturalistes Moscou, vol. 27, 1854, No. 1, p. 3. Cypridina minuta n. sp., C, balthica His. Eurypterus remipes Dekay. Pterygotus anglicus Agass. Bunodes lunula Eichw. Ueber die Gattungen Cryptonymus und Zethus. In Bull. Soc. Imp. des Naturalistes Moscou, vol. 28, 1855. Separate ed., Moscou, 1855, 23 pp. The author maintains that the genus Cryptonymus should be retained for several Kussian and Swedish Trilobites as denned by N. P. Angelin (•' Palaeont. Scand.," 1852, p. 2), with Calymene punctatm for its type. Beitrage zur geographischen Verbreitung der fossilen Thiere Russland's. In Bull. Soc. Nat., Moscou, vols. 28-30, 1855-57 (vol. 30, 1857). Bull. No. 4, 1857, p. 305, contains descriptions of the following Crustacea: Ostracoda: Cylherina pyrrh<.K n. sp., C.phaseolusHia., C. ?»mwta Eichw., C. (Cyclos) eos n. sp., C. ovata n.sp. Cypridina baltica His., C. grandis Schrenk, C. Icevigata n. sp., C. microphthalma 11. sp. Bairdiaqualeni n. sp., 13. curta M'Coy, B. a-qualis n.sp., B. excisa 11. sp., B. distracta n.sp. Beyrichia gibber osa n. sp., B. umbonata n. sp., B. ktriolata n. sp., B. col- liculusn.sp. Poecilopoda. Agnostu* pisif or mis ~Brong., A.paradoxusn.sp., A . brevifrons Ang. Trilobit en : Harpes ( Trinucleus) spaskii Eichw . Trinucleus issedon n.sp. Ampyx nasutus. Lonchodomas affinis Ang. Raphiophorus conulus n.sp. Lichas hubneri Eichw., L. laciniatus Wahl., L. Icevis Eichw., L. conicep* Leuchtb. Cerurus (Cheirurus) speciosus His., C. gladiator n. sp., C. scut- BIBLIOGRAPHY OF PAL.KOZOIC CRUSTACK A . 55 /;/«/-, C. aculeatus, C. sembnitzkii. Sphaerexochus clavifrons Dalm. Sphae- rocoryphe aries Eichw. Staurocephalus (Sphaerexochus) cranium Kut. Aiiifihionfischeri. Cryplonymus Eichw. ( Encrinur us Emm.), C, parallelu* Eichw., C. u'orthii, C. pnnctatus, C. verrucosus Pand. Calymene blumem- 'xirhi Brong., C. verticalls Burm. Odontochile sclerops Dalm. P hoc op* Iritijrons Burm., P. macrophthalma Brong. Chasmops odini, C. poivisii Sow. Proetus concinnus Dalm. Zethus Pand. (Cyphaspis Burm.?), Z. uni- filirntiix Paud., Z. biplicalus, Z. triplicates. Cyphaspis ( Platymetopus ) /ilnnifrons Ang. Griffithides Port. (Phillipsia Port., Otarion Zenk. ?) G. . ililatata Briin: Homalonotus elongatus. Megalaspis heros Dalm., M. lon'jicauda Lencht., M. extenuata Wahl., M. remigium n.sp., M. centrou Leucht. Asaphus expanses, A. raniceps Dalm., A. weissii Eichw., A. ex- /icinsus var. cornuta, A. lichtensteinii n. sp,, A. latus Pand., A. devexus, A. hyorrhinusliencht. Plychopyge angustifrons Dalm., P.applanta Ang., P. ijlobifrons. Dysplanus rosenbergii n. sp., D.cenlrotusDalio.. Illcenus cros- sicauda, I . parkinsonii n. sp., /. icahlenbergii, L rudolphii, /. atavus, I. tauricornis Kut., /. perovalis Murch., /. bouchardi Barr. afif. /. barriensi* Mnrch. Nileus armadillo Dalm. Bronteus flabellifer Gold., B.insularis. Odontochile (Dalmania) exilis n. sp. Copepodarien : Eurypterus tetragonophthalmus Fischer. Pterygotus (inylicus Agass. Xiphostiren: Eidothea (Linmlus) oculata Kut. Bunodes lunulu Eichw. Lethsea Rossica, ou paleontologie de la Kussie. Stuttgart, 1852-69. 3 vols., with atlas, 113 pis. The Crustacea are arranged in the following order: First order, Ostra- copodia, first family, Cypridina, genus 1, Leperditia. 2, Bairdia. \ 3, Bc-i/richia. Second order, Pcecilopoda, second family, Agnostidae, genus 4. Aynostus. Third order, Copepoda, third family, EurypteridaB, genus 5. Eurypterus. 6, Pterygotus. Fourth order. Xiphosuridas, fourth family, Limulidaa, genus 7, Campylocephalus n. g, Fifth order, Isopodes, Trilo- bites, family Harpidaa, genus 9, Harpes. 10, Trinucleus. 11, Ampyx. 12, Lonchodomas. 13, Raphiophorus. Sixth family, Lichidaa, genus 14, Lichas. Seventh family, Cheiruridae, genus 15, Acidaspis. 16, Ceraurm. 17. Sfthcerexochus. 18, Zethus. 19, Spharexocoryphe. Eighth family, Am - phionidae, ' genus 20, Amphion. 21, Homalonotus. 22, Cryptonymus. Ninth family, Calyminidae, genus 23, Calymene. 24, Acaste. 25, Phacops. •26, Chasmops. 27, Proetus. 28, Griffiithides. 29, (not given). 30, Cy- /ihasis. Tenth family, Kemopleurida?, genus 31, Bunodes. 32, Pseudoni,-<- <-us. 33, Remopleuridts. Eleventh family, Asaphidae, genus 34, Asaphu*. Megalaspis. 36, Niobe. 37, Ptychopyge. 38, Ogygia. 39, Iltenu*. 40, Rhodope. 41, Dysplanus. 42, Actinobolus n. g. 43, Nileus. Twelfth family, Brontidae, genus 44, Bronteus. 56 CALIFORNIA ACADEMY OF SCIENCES. Leperditia baltica His., L. grandis Schreuk, L. ornata n. sp., L. pha$t>- olus His., L. ovulum Eichw., L. minuta Eichw., L.foveolata n. sp., L. mi- crophthalma Eichw., L. recta DeKeys. Bairdia protracta 11. sp., B. curta M'Coy, B. qualeni Eichw., B. cequalis~Eichw., B. distracta Eichw., B. excixa Eichw., B. Icevigata Eichw., B. scapha n. sp., B. pyrrhce Eichw., B. ovata n. sp., B. cyclas DeKeys. Beyrichia tuberculata Kloed., K. kloedeniWGoy, B. umbonata Eichw., B. striolata Eichw., B. collicuhis~Eichv,'., B.gibberotia Eichw., B. stricta DeKeys, B. schrenkii DeKeys. Agnostus pisiformis, A. paradoxus Eichw., A. nodiger n. sp. Eurygterus ftscheri 11. sp. Pterygotvs anglicus Ag. Campy locephalus oculatus Kut. Trilobites: Harpes spaskii Eichw. Trinucleus issedon Eichw. Ampyx nasutus Dalm. Lonchodomas longirostris n. sp. Raj)hiophorus conulvs Eichw. Lichas macrocephala n. sp., L. eichwaldi Nieszk., L. angusta Beyr., L. hubneri Eich., L. ornata Ang., L. conicej)s Leuchtb., L. verrt'- cosa Eichw., L. Icevis Eichw., L. laciniata Wahl., L. concinna Ang., L. dalecarlica Ang., L. oelandica Ang. Acidaspis crenata Emm. Ceraurus gladiator Eichw., C. scutiger Eichw., C. aeuleatus Eichw., C. exsul Beyr., C. macrophthalmus Kut., (7. glaber Ang., C. speciosus Dalm., C. zembnitz- kii Eichw., C. affinis Ang., C. tumidiis Ang., C. approximatus 11. sp. Shpv- rexochus clavifrons His. Zethus uniplicatus Pand., Z. biplicatus Eichw., Z. triplicatus Eichw. Spczrocoryphe dentata Ang., S. aries Eichw. Am- phion Jischeri Eichw. Homalonotus eloifyatus 11. sp. Cryptonymus jtuncta- tus Briiiin., C. bellatulus Dalm., C. parallelus Eichw., C. worthii Eichw., C. rex Niesk. Calymene bhimembachii Brong., C. denticulata 11. sp. Acasie exilis Eichw., A. caudata Briinu., A. truncato-caudata Port., A. sclerop* Dalni., A. macrovhthalma Brong. Phacops latifrons Broiiu. Chamops odini Eichw., C. macrourus Ang., C. conicophthalmus Boeck. Proetus con- cinnus Dalm. Griffithides eichwaldi Fischer, G. brongniardi Fischer, G. jonesii Port., G. uralicus DeVerii., G. biserialist n. sp., G. derbyensis Mart., G. truncatulus Phil. Cyphaspis elegantulus Ang., C. planifrons n. sp. R<'- mopleurides nanus Leuchtb. Bunodes lunula Eichw. Pseudoniscus acv- leatus Nieszk. Asaphus expansus, A. schlotheimn Eichw., A. tveissii Eichw., A. raniceps Bock. (A . expansus var. raniceps Dalm.) A . acuminatus Boeck., A. angustifrons Dalm., A, hyorrhinus Leuchtb., A. centron Leuchtb., A. latus Pand., A. devexus Eichw., A.platyurus Aug., A. platycephaus Stock. Megalaspis longicauda Leuchtb., M. remigium Eichw., M. rudis Aug., M. heros Dalm., M. extenuata Wahl. Niobe lichtensteinii Eichw., N. Icevicep* Dalm., N. lata Ang. Piychopyge lata Aug., P. applanata Ang., P. rimv- losa Ang., P. globifrons Eichw., P. limbata Ang. Ogyvia buchii Broug. lllcenus crassicauda Wahl., /. whalenbergii Eichw., /. laticlavius n. sp., /. parkinsonii Eichw., /. dav?*ii Salter, /. cornutm Eichw., /. oblongatus Aug., G. rudolphii~Eich\r., I. rossenbergii'Eichw., I. bouchardi var. minuta Cord ., /. barriensis Murch. Rhodopelatah.no. Dyplauus centrotus Dalm. Actin- obolus atavus Eichw. Nileu* armadillo Dalm. Bronte.us granulatim Goldf., B. insularis Eichw. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. D/ Beitrage zur nahern Kenntniss der in meiner Lethaea Rossica beschriebenen Illsenus, etc. In Bull. Soc. Imp. des Naturalistes Moscou, 1863, No. 4, p. 372. Illaenus parkinsonii Eichw., /. oblongatus Eichw., /. laticlavius Eichw., /. wahlenbergii Eichw., /. rudolphii Eichw., /. rossenbergii Eichw., I. cor- nutus Eichw. Actinobolits atavus Eichw. Emerson (B. K.) On the geology of Frobisher Bay and Field Bay. Appendix 3. Narrative of the second Arctic expedition made by Charles F. Hall, 45th Cong., 3d sess., Senate Doc. 27, Washington, 1879. Leperditia alta Conrad, L. canadensia Jones. Primita muta Jones, P, frobisheri n. sp. Beyrichia symmetrica n. sp. Triarthrus beckii Green. Calymene senaria Conrad. Trilobites sp. ? Cyphaspis 1- frobisheri n. sp. Asaphus sp. ? Phacops sp. ? Emmons (Ebenezer). Geology of New York. Pt. 2. Comprising the survey of the Second Geological Dis- trict. Albany, 1842. Isotelus gigas, fig. 99 (1); Bumastus trenlonensis, fig. 100 (1); Calymene. xenaria, fig. 100 (2); Illcenus trentonensis, fig. 100 (3); Oeraurus pleurex- anthus, fig. 100 (6); Trinucleus tessellatus, tig. 100 (7); Triarthrus beckii, fig. 110 (1); Trinucleus caractaci, fig. 112 (1). The Taconic system, based on observations in New York, Massachusetts, Maine, Vermont and Rhode Island. Albany, 1844; 6 pis. and map". Atops n. g., A. irilineatus n. sp., tig. 8; Elliplocephala n. g., E. asaphoidcs n. sp. (not Ellipsocephalus Zenker, 1833), fig. 9. Agriculture of New York, comprising an ac- count of the classification, composition and distribution of the soils and rocks, etc. Vol. I. Albany, 1846; 21 pis. and maps. Atops trilineatus, fig. 8; Elliptocephala asaphoides, fig. 9. On the identity of the Atops trilineatus and the Triarthrus beckii Green, with remarks upon the Elliptocephalus asaphoides. In Proc. Am. Assoc. Adv. Sci. First meeting, Philadelphia, 1848, p. 16. Atops trilineatus, Triarthrus beckii, Elliptocephalus asaphoides. 58 CALIFORNIA ACADEMY OF SCIENCES. - American Geology, containing a statement of the principles of the science, with full illustrations of the characteristic American fossils. Vol. 1, Parts I, II and VI. Albany, 1855-57, atlas, 17 pis. This incomplete work only appeared in three parts, as enumerated above. Trilobites. laconic System: Elliptocephalus asaphoides Emm. Olewi* gibbosus Dalrn. Paradoxides bohemicus. A tops trilineatus Emm. Micro- discus n. g., M. quadricostatus n. sp. Crustacea: Conocephalus striatus. Harpes. Acidaspis. Trinucleus con- centricus. Oalymene senaria Conrad. Trianthrus beckii Green. Phacop* callieephalus. Illaenus crassicauda, I . trentonensis. Isotelus gigas. Ogygiv- vetusta. Acidaspis trentonensis. Ceraurus pleurexanthemus, C. vigilan*. Beyrichia simplex Jones, B. regular is n. sp., B. ciliata n. sp. Agnostii* lobatus. Cytherina subelliptica n. sp., C . crenulata 11. sp., C '. subcylindricci 11. sp. Dikelocephalus minnesotensis Owens. Illaenus arcturus Hall. Asaphus marginalis. Isotelus canalis. Asciphus obtusus. Calymene conradi n. sp. Lichas trentonensis, etc. Manual of geology, designed for the use of colleges and academies. New York, 1860. Paradoxides? quadrispinosus. fig. 57; P. macrocephalus fig. 70; Atop* punciatus, fig. 71; Microdiscus quadricostatus, fig. 73; Caiymene senaria, fig. 87; Illmnus trentonensis, fig. 89 (a); /. crassicauda, fig. 89 (b); Triarthrti* beckii, figs. 89 (c) and 91; Isotelus gigas, fig. 89 (d); Beyrichia, Cytherina, Cyproides, fig. 90; Trinucleus caractaci, fig. 93 (1); Hemicripturus, fig. 9" (2); Illctnus barriensis, fig. 98 (3); Dalmania selenurus, fig. 118 (1); Phacop* bufo, fig. 124 (6); Dalmania calliteles, fig. 124 (7); Phacops nupera, fig. 138 (2); Cyphaspis fjirardeauensis, fig. 145(2); Homalonotus dekayi, figs. 134, 135. Note A, p. 280, the author remarks: " We now know the following trilo- bites, all of which belong to a slate beneath the Calciferous, viz,: Ato)>* punctatus, Elliptocephalus (Paradoxides) asaphoides, Paradoxides thompsoni. P. vermonti, P. macrocephalus, P. (Pagura) quadrispinosus, and Microdis- cus quadricostatus. " Dr. Emmons misprints Peltura and uses it in a subgeneric sense to Paradoxides (Pagura) quadricostatus. Emmrich (H. F.) De Trilobitis Dissertatio petrefacto- logica quam consensu et auctoritate amplissimi philos- ophorum ordinis, etc. Berolini, 1839, 1 pi., 56 pp. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. Classifies 65 species and 9 genera and 6 subgeuera, a^ follows : 1 . Phacops. (Sec. 1, Ogygia. 2, Asaphus. 2. Asaphus < j 3, Illamus. * 4. ( Sec. 1, Calymeue. /-» i '™"-j *~ 3. Calymene-^ ., Trimerus. 4. Dipleura. ."». Conocephalus. 6. Ellipsocephalus. 7. Ampyx. 8. Paradoxides. 9. Odontopleura. CyphiBus. Emmrich includes Cyphftu* Green in his classification of the genera, but without enumeration. I. Phacops macrophthalmus Brong. 2, P. protuberant Dalm. 3, P. •/CM*' Esm. 4, P. variolaris Park, 5, P. ? odontocephalus Green. 6, P. clavifrons Dalni. 7, P. conophthalmus Boeck. 8, P. sclerops Dalm. 9, /*. nnchiops Green. 10. P. roundifrons 11. sp. 11, P. mucronatus Brong. 12, P. caudatus Briinn. 13, P. hausmanni Broug. 14 P. proavus u. sp. II. Asaphus Sec. 1, Ogygia. 1, Asaphus guettardi Brong. 2, A. des- niarestu Brong. 3, A. corndensisMnrch. 4, A. buchii Brong. 5, A. dilata- (>i« Briinn. 6, A. tyranuus Murch. 7, A.frontalis Dalm. Subg. II. Asaphus genuini: 8, A. extenuatus Wahl. 7, A. angustifron* Dalm. 10, B. expansus Wahl. 11, A. weissii Eich. 12, A. giga,sDeKa.j. 13, A. Iceviceps Dalm. 14, .4. palpebrosus Dalm. 15, A. armadillo Dalm. Sec. III. Ulaenus: 16, Asaphus barriensis Murch. 17, A. crassicauda Wahl. 18, .4. centrotus Dalm. Sec. IV. Asaphus conctnnus Dalm. 20. A. globicep* Phil. 21, .4. dal- mani Gold. Appendix: 22, ? Axaphux laticanda Wahl. 23, ? A . flabelliformis Gold. III. Calymene. 1, C. bellatula Dalm. 2, C. polytoma Dalm. 3, C. blu- >'ichi, 4. C, Irislani Brong. 5, C. calUcr-phala Green. 6, C. seleno- cephala Green. 7, C. delphinocephala Green. 8, C. ludensix Murch. IV. Dipleura dekayi Green. V. Conocephalus sulzeri Schloth. 2, C. slriatus n. sp. VI. Ellipsocephalus hoffi Schloth. VII. Paradoxides. 1, P. gibbosus Wahl. 2, P. acuminatus n. sp. 3, P. latus Boeck. 4, P. tetragonocephalus Green. 5, P. spinulosus Wahl. »i. P. scarabcpoides Wahl. Sec. 2, P. longicaudatus Zenk., P. tessini, P. harlani Green. VIII. Ampyx nasutus Dalm., .4. mammillatuft Sars., ^4. rostralus Sars. Sec. 3, CryptoUtktu. A. granulatus Wahl. (Cryptolithus) tessellatus Green, 60 CALIFORNIA ACADEMY OF SCIENCES. A. (Or.) caractaci Murch., A. fimbriatus Murch., A.radiatus Murch., A. lloydii Murch. IX. Odontocephalus n. g. O.ovata n. sp. Calymene arachnoidea Goldf. Cryphceus Green. The author figures Phacops rotundifrons, Conocephalus striattis, Odonto- pleura ovata, Cryptolithus caractaci and Asaphus globiceps. Zur Naturgeschichte der Trilobiten. Pro- gramm zur offentlicheii Priifung, welche mit den Zog- lingen der Realschule in Meiniiigen Donnerstag dem 28, und Freitag den. 29. Marz 1844 im grosseii Horsaale der Anstalt abgehalten werden soil, etc. Meiniiigen, 1844, 1 pi. Pt. 1. Zur Morphologic der Trilobiten, pp. 4-13. Pt. 2. Ueber die Trilobitengattungen, pp. 13-18. Pt. 3. Ueber die Verbreitung der Trilobiten in den Gebirgsschichten, pp. 18-28. The genera are arranged into 25 families in the following order: A — Phacops in the restricted sense (Calymene Brong. in part). Con- tractile. Pleurae rounded at the extremity, with an acutely-sharpened anterior margin. Axis of pygidium furnished with 11 or fewer joints. P. macrophthalmus Brong., protuberans Dalm., cryptophthalmus Emm. (Calymene Icevis Mtinst.?), sclerops Dalm. (powisii Murch.), conophthalmus Boeck., downingice Murch., procemus Emm., rotundifrons Emm. B — Dalmania (Asaphus Brong. in part, Asaphus Goldf.) Not contractile. Pleura at the anterior margin scarcely sharpened, frequently acute. Gln- bella always clavate, distinctly lobed. Pygidium with more than 11, sometimes as many as 22, joints to the axis, frequently elongated at the extremity of the tail. Phacops caudatm Briinn., mucronatus Brong., hausmanni Brong., odontocephalus Green., truncato-caudatus Port. II. Phillipsia Port. Facial suture extending to the posterior margin. Glabella almost cylindrical. Thorax 9 to 10 jointed. (a) Nine- jointed species: Phacops kelli, jonesii, ornata. (b) Ten-jointed species: Asaphus dalmani Goldf. Calymene a-qua/is v. Mey. Family II. Asaphi in the restricted sense. Contractile species. Pleuno always sharpened at the anterior margin, generally obtuse at the extremity. III. Grimthides Port. Glabella gibbous, clavate. Thorax 9- jointed. Pygidium furnished with 10 joints and upwards. G. globiceps, longisphixs Port., obsoletus Phil. IV. Gerastos Goldf. (Proetus Stein.) Glabella truncate, cylindrical, indistinctly lobed. Thorax 10-jointed. Tail less and indistinctly jointed. G. concinnus Dalm. BIBLIOGRAPHY OF PALJEOZOIC CRUSTACEA. 61 V. Asaphus Brong. Glabella well defined, clavate until it disappears; the articulation of the tail is likewise distinct or indistinct until it disap- pears completely. Thorax 8-jointed. VI. Illaenus Dalm. emend. Without glabella and without articulation of the tail. Thorax (9) 10- jointed. Joints smooth. Eyes distant from the axis of the head, located nearer to the margin. /. cassicanda, centrotus and Bumastus barriensis. VII. B. Ogygia Brong. emend. Body 7 ? 8-jointed. 0. guettardi, dfsmarestli, buchii, dilatata Brim. Asaphus tyrannus does not belong here, but to Asaphus. VIII. Brontes Goldf. Caudal shield clypeoid, with radiating ribs. Thorax 10-jointed. B . ftabellifer Goldf. IX. Nuttainia Eaton. Kibs of the tail distinct, connected only by their margins, terminating in triangular points. Thorax 10-jointed. N. hiber- n'lca. Port. Family III. Calymene. X. Encrinurus n. g. Possessing the power of contraction. Eyes smooth. Glabella clavate. Pygidium with a many-jointed axis and few ribs. Entomostracites punctatus Wahl. Amphion multisegmentatus and Ofjygia rugosa Port. XI. Amphion Pander. Eyes smooth. Glabella of equal width, lobed. Thorax many-jointed (20-jointed). Pygidium small and distinctly articu- lated. A.frontilobus Pand. XII. Calymeue Brong. emend. With oculi hiantes. Glabella narrow- ing anteriorly, lobed. Thorax 13-jointed. Pygidium articulated. Kibs mostly furcated. C. blumembachii Brong. XIII. Homalonotus Konig (Trimerus Green). The same as XII, but the glabella is not lobed. H. knightii Konig. Herschelii Murch., delphin- ocephalus Green. B. Paradoxides. Not contractile. XIV. Conocephalus Zenk. Thorax 14-jointed. Eyes smooth. ? In other respects like XI. C. sulzeri Schloth, strialus Emm. XV. Ellipsocephalus. E. hoffi, Schloth. XVI. Anthes Goldf. .4. scrabaeoides Wahl. XVII. Paradoxides Bron. emend. (Olenus Goldf.) P. gibbosus. Family IV. Odontpleura. Facial suture terminating at the posterior mar- gin more or less distant from the angles of the head. Eyes smooth. Glabella narrow anteriorly, divided into lobes at the sides. Margin of the head •lentated. Thorax 8-9-jointed, and upwards. Pygidium considerably smaller than the head, with longer or shorter spiny appendages. The pleurae of the thorax are likewise frequently elongated into spines. Odontopleura n. g. Glabella semi-circular. Facial suture, see above. 1'yes smooth. Thorax 9- jointed. Pygidium furnished with a 2-jointed axis, and dentated or spiny margin. O. bispinosa Emm., O.ovata Emm., O. mutica Emm., O. cremata Emm., O. centrina Dalm., O. dentata Goldf. 62 CALIFORNIA ACADEMY OF SCIENCES. XIX. Arges. Eyes ? Facial suture straight posteriorly. Cheeks ? Thorax 8- jointed. Pygidium with an indistinct 4-jointed axis. All the pleurae are serrated. Family V. Triuuclei. Head with a broad even reticulate foveolate margin, which is lengthened into horns posteriorly. Facial suture ter- minating at the posterior margin. Eyes generally unknown. XX. Cryptolithus Greeii(Trinucleus Murch.) Glabella clavate, divided into lobes at the sides. Thorax with 6 segments. Pygidium articulated. Eyes? C. granulatus Green, C. caractaci Murch. XXI. Ampyx nasutus, restrains Sars., mammillatusS&'rs. Harpes Goldt. differs from Trinucleus by the greater number of rings of the thorax. Section II. All the segments of the body at the posterior part of the cephalic shield are homologous and movable, only the last joint is with- out fins. Family VI. Oleiii. XXI. Olenus te.ssini. XXIII. Remopleurides colbii, longicaudatus, lateri-spinifer. XXIV. Ceraurus Green. XXV. Agnostus Brong. (Battus Dalm.) A. pisi^ormis Brong. - Ueber die Trilobiten . In Neues Jarhbuch fiir Mineral., 1845, p. 18, 1 pi. For list of genera, see preceding reference. - On the morphology, classification, and distri- bution of the Trilobites. Scientific Memoirs, edited by Kichard Taylor, vol. 4, 1846, p. 253, 1 pi. Translation of the preceding reference. Esmark (H. M. T.) Om nogle nye Arter af Trilo- biter. In Mag. for Naturvidensk., Aiiden Krekkes. Christiana, vol. 1, 1833, p. 268, pi. 8. Trilobitcr ((xeilus n. sp., T. elliptifroiis n. sp., T. sphue-rius n.sp., T. xemi- lunaris n. sp., T. den tutu* n. sp. Etheridge (Robert). Description of the Palreozoic and Mesozoic fossils of Queensland. In Quart. Jour. Geol. Soc. London, vol. 28, 18/2, p. 317. Griffithldei* dubhis n.sp., pi. 18, fig. 7. - Observations on a few Graptolites from the Lower Silurian rocks of Victoria, Australia, with a fur- ther note on the structure of Ceratiocaris. In Annals Mag. Nat. Hist., London, 4th series, vol. 14, 1874, p. 1. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 63 — Palaeontology of the coasts of the Arctic lands visited by the late British expedition under Capt. Sir Ueorge Nares, etc. In Quart. Jour. Geol. Soc. London, vol. 34, 1878, p. 568. Bronteus sp.? allied to B. hibernicnx Port., B.JlabeUifer Goldf.^ Asaphus like A. tyrannus Murch. Calymene wmirla Conrad? n. sp. Encrinurua l'i r/.< Ang. Proetus sp. Address of the President. In Quart. Jour. Geol. Soc. London, vol. 37, 1881, Proceedings, p. 37. Reports of the committee, consisting of Mr. It. Etheridge. Dr. Henry Woodward, and Prof. T. Rupert Jones, secretary, on the fossil Phyllopoda of the Palaeo- zoic rocks. See reports of the secretary, recorded under Jones (T. Rupert). See, also. Woodward (Henry) and Etheridge (Robert); Huxley (T. H.) and Etheridge (Robert, Jr.) Etheridge (Robert, Jr.) Memoir Geological Survey of Scotland. Edinburgh. Explanation Map, 23, p. 93. Ceratocaris. On the remains of Pterygotus and other Crus- taceans from the Upper Silurian series of the Pendlaiid Hills. In Trans. Geol. Soc. Edinburgh, vol. 2, 1874, part 3, pp. 314-316. Fragmentary remains of Pterygotus and a supposed Crustacean, prob- ably a Phyllopod. Species of Dictyocaris are described, but without specific names. Notes on further localities for Acanthospongia viiiithii Young, and Estheria daicsoni Jones. In Geol. Mag. decade 2, vol. 3, 1876, p. 576. Estheria daiesoni Jones recorded from the Red Sandstone group, the lowest member of the Calciferous series at the base of the British Carboniferous formation. On the remains of a large Crustacean probably indicative of a new species of Eurypterus, or allied genus (Eurypterus? stevensoni), from the Lower Carboniferous (Cement stone group) of Berwickshire. In Quart. Jour. Geol. Soc. London, vol. 33, 1876, pp. 223-228. 64 CALIFORNIA ACADEMY OF SCIENCES. On the occurrence of a Macrurous Decapod ( Antrapalcemon? woodwardi) in the Red Sandstones, or lowest group of the Carboniferous Formation, in the Southeast of Scotland. In Quart. Jour. Geol. Soc. London, vol. 33, 1876, pp. 868-878, plate 27- On Pinnocaris Lapworthi. In Proc. Koy. Phys. Soc., 1878, vol. 4, p. 164. Turrilepas scotia n. g. Pinnocaris n. g. Solenocans solenoides Young. Pinnocaris lapworthi n. sp. Lichas sp. S alter in primteva "Wy. Thomson. Acidaspis grayce 11. sp. Cheirurus trispinosux Young. Agnofttus trinodu* Salter. A Catalogue of Australian Fossils (including Tasmania and the Island of Timor), Stratigraphicallv and Zoologically arranged. Cambridge, 1878, pp. viii and 226. This work notes species of Bronte us, Calymene, Cheirurus, Cromus, EH- crinurus, Entomis, Forbesia, Harpes, Homalonotus, ffymenocaris, fllcenus. Lichof;, Phacops, Proetus, Staurocephalus, Trinuclem, Phillipsiti, Griffithidev and Brachymetopus, On the occurrence of the genus Dithyrocaris in the Lower Carboniferous or Calciferous Sandstone series of Scotland, and on that of a second species of Anthrapalcvmon in those beds. In Quart. Jour. Geol. Soc. London, vol. 35, 1879, pp. 464-474, plate '23. Dithyrocaris testudineus Scouler, D. tricornis Scouler, and two indicated species Anthrapalcemon ivoodwardi Etheridge, A. macconochii n. sp. — = On the occurrence of a small new Phyllopodous Crustacean, referable to the genus Leaia, in the Lower Carboniferous rocks of the Ediiigburgh neighborhood. In Ann. Mag. Nat. His., 5th series, vol. 3, 1879, pp. 257-263. Notes on a collection of fossils from the Palaeozoic rocks of New South Wales, Part 1. In Jour. Rev. Soc. N. S. W., vol. 14, 1880, pp. 247-258, plate. Encrinurus punctatus Briinii. Description of the remains of Trilobites from the Lower Silurian rocks of the Mersey River District, Tasm ania. BIBLIOGRAPHY OF PAL.EOZOIC CRUSTACEA. 65 In Papers and Proc. Koyal Soc. Tasmania for 1882 (1883), pp. 150-163, plate. Conocephalus stephensi Etheridge, Jr., Dikelocephalus tasmanicus Ether- idge, Jr., are described from the Cambrian beds of Caroline Creek, alsoau indicated species of the genus Asaphus. Oil the occurrence of the genus Turrilepcis and the jaws of annelids in the Upper Silurian rocks of Nfw South Wales. In Geol. Mag. 1890, vol. 7, pp. 337-340. Turrilepas mitchelli Etheridge, Jr. - and Woodward (Henry). On some specimens of Dithyrocaris from the Carboniferous Limestone series, East Kilbride, and from the Old Red Sandstone of Lan- arkshire. Geol. Mag. 1773, vol. 10, p. 482-486, plate 16. Continued in vol. 1, 1874, pp. 107-111, plate 5. On the identity of Bronteus partschii DeKon- inck (non Barrande) from the Upper Silurian rocks of New South Wales. In Proc. Linn. Soc. N. S. Wales, 1890, part 3, pp. 501-504, plate 18. Bronteus jenkensi n. sp. - and Mitchell (John). The Silurian Trilobites of New South Wales with references to those of other parts of Australia, Part 1. In Proc. Linn. Soc. New South Wales, series 2, vol. 6, parts 1-3, 1891- f»2, p. 311, plate. Family Proetidae: 1, Phaeton Barr. 2, Forbesia McCoy. 3, Xiphogonium . Corda. 4, Celmus Ang. Proetu* browingensis Mitchell, P. rattei n. sp. (P. ascanicus Katte), P. t n. sp. - and Nicholson (H. A.) See Nicholson (H. A.) and Etheridge (Robert). - and Salter (J. W.) See Salter (J. W.) and Etheridge (Robert). 66 CALIFORNIA ACADEMY OF SCIENCES. Faber (Charles L.) Remarks on some fossils of the Cincinnati group. In Jour. Cincinnati Soc. Nat. Hist., vol. 9, 1886, p. 14. Lepidocoleusn. g., pi. 1, fig. 1 a-f, L.jamesi (Hall & Whitfield) Faber. Feistmantel (Ottokar). Ueber ein neues Vorkommen von nordischeii silurischen Diluvialgeschieben bei Lam- persdorf in der Grafschaft Glatz (Zeitschrift Lotos, Dec., 1874, p. 10, Prag). Phacops downingice. Leperditia marginata. Beyrichia tnberculata, B. salteriana. Leperditia phaseolus. Fischer (G. de Waldheim). Description of Asaphus- eichwaldi and A. brongniarti. In Eichwald's Observa- tioiies Geogriostico. Zoologigie per ingriam Marinsque Baltici, etc., 1825, p. 54, pi. 4, figs. 4 and 5. Notice sur PEurypterus de Podolie et leChiro- therium de Livonie. Moscou, 1829, 2 pis. Eurypterus remipes Dekay, E. lacustris? Har., E. tetragonophthalmus n.sp. Oryctographie du Gouvernment de Moscow. Moscow, 1830-37. The author re figures the two pygidia described under the names of Asa- phus brongniarti Fisch. and A.eichwaldi, Fisch. in 1825, and states that he considers them "as one and the same species for which he retains the name of Eichwald; the more so as another Trilobite already has the name of Brongniart." Fitch (Asa). Fossils of Washington County, New York. In Trans. New York Agric. Soc., vol. 9, 1850, p. 862. A tops trilineatus Emm. (Calymene becki Gr.) Olenus asaj^hoides. Tr /nucleus concentrica. Fletcher (W. F.) Observations on Dudley Trilobites. In Quart. Jour. Geol. Soc. London, vol. 6, 1850, p. 235, pis. 27, 27 bis. Lichas biicklandi Milne Edw., L. Mrxutu* n. sp., L. grayii n.sp., L. salteri n. sp., L. barrandei n. sp. Observations on Dudley Trilobites. Part 2. In Quart. Jour, Geol. Soc. London, vol. 6, 1850, p. 402, pi. 32. Cybele punctata Wahl., C. variolari* Brong. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 67 Foerste (A. F.) The Clinton group of Ohio. In Bull. Denison Univ., vol. 1, 1885, p. 63, 2 pis. Acidaspi*. Bathyurus?. Arionellus?. Illcenus daytonensis H. & W., /. madisonianus Whitf., /. ambiguus n. sp. Calymene blumenbachii ?. Lichas breviceps Hall. Dalmanites werthneri n. sp. The Clinton group of Ohio. Part 2. Iii Bull. Dennison Univ., vol. 2, 1887, p. 89, pi. 8. Ceraurus. Acidaspis ortoni n. sp. Proetus determinatus n. sp. Illcenus draytonensis, I. mad i son! anus, I. ambiguus Foerste. Calymene vogdesi n. sp. Lichas breviceps Hall. Phacops pulchellm n. sp. Dalmanites werthneri Foerste. Encrinurus thresheri n. sp. Note on Illseni. In Fifteenth Kept. Geol. Nat. Hist. Survey Minnesota, 1886, p. 478. Illcenus (Nileus) minnesotensis n. sp., /. herricki n. sp., /. ambiguus Foerste, /. insignis Hall. Note on Palaeozoic fossils. Part 2. In Bull. Denison Univ., vol. 3, pt. 2, 1888, p. 117, pi. 13. Microdiscus punctatus Salt. Lichas halli n. sp. Sphcerexochus mirus Beyr. Encrinurus boivningi n. sp., E. mitchelli n. sp. Phacops serratus n. sp. Lichas trentonensis Conrad, breviceps Hall. Notes on Clinton group fossils, with special reference to collections from Indiana, Tennessee and Georgia. In Proc. Boston Soc. Nat. Hist., vol. 24, 1889, p. 261. Calymene blumembachii var. vogdesi n. var., C. rostrata Vogd. Illatnus ambiguus Foerste, /. ioxus [Hall. Phacops pulchellus Foerste. Encrinurus punctatus Wahl. Lichas boltoni var. occidentalis ? Hall. Cyphaspis clintoni n. ,sp. Forbes (Edward). Description of Ampyx nudus. In Mem. Geol. Survey United Kingdom, decade 2, London, 1849, pi. 10. Ampyx nudus Murch., A. tumidus n. sp. Brachampyx n. g. The author makes the following remark: "If, in the end, all the five ringed species should prove to have long heads, and those with 6 thoracic segments to have short and rounded ones, the latter section may be con- veniently distinguished from the former as a subgenus, under the name of Brachampyx . The author erroneously included the type of the genus, Ampyx nasutu* Dalm., in his new subgenus; the term is misplaced and should be aban- doned. 68 CALIFORNIA ACADEMY OF SCIENCES. Ford (S. W.) Description of some new species of Pri- mordial fossils. In Am. Jour. Sci., 3d series, vol. 3, 1872, p. 419. Agnostns nobilis n. sp. Descriptions of new species of fossils from the Lower Potsdam group at Troy, New York. In Am. Jour. Sci., 3d series, vol. 6, 1873, p. 137. Microdisciis speciosus, fig. 2 a, b, n. sp. Leperditict troyensis n. sp. Note on the discovery of a new locality of Primordial fossils in Rensselaer County, New York. In Am. Jour. Sci., 3d series, vol.9, 1875, p. 204. Conocephalites (A tops) trilineatus Emmons. On additional species of fossils from the Primordial of Troy and Lansingburg, Rensselaer County, New York. In Am. Jour. Sci., 3d series, vol. 11, 1776, p. 369. Microdlscus meeki n. sp. Note on Microdiscus speciosus. In Am. Jour. Sci., 3d series, vol. 13, 1877. p. 141. On some embryonic forms of Trilobites. In Am. Jour. Sci., 3d series, vol. 13, 1877, p. 265, pi. 4. Metamorphoses of Olenellus (Elliptocephalus) asaphoides Emm. Description of two new species of Primordial fossils. In Am. Jour. Sci., 3d series, vol. 15, 1878, p. 124. Solenopleura nana n. sp. Note on the development of Olenellus asapho- ides. In Am. Jour. Sci., 3d series, vol. 15, 1878, p. 129. — Life of the Silurian age. New York Tribune Extra, September 2, 1879. In this paper Mr. S. W. Ford gives generic figures of Trilobites, includ- ing figures of Microdiscus speciosus Ford. Note on the Trilobite Atops trilineatus Em- mons. In Am. Jour. Sci., 3d series, vol. 19, 1880, p. 152. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 69 On additional embryonic forms of Trilobites from the Primordial rocks of Troy, New York, with observations on the genera Olenellus, Paradoxides, and Hydrocephalus. In Am. Jour. Sci. 3d series, vol. 22, 1881, p. 250, 13 figs. Olenellus asaphoides Emm . Paradoxides spinosus Boeck, P.pusillus Barr., P. infiatus Cord., P. tessini Brong., P. kjerulfi Linrs. Hydrocephalus carens Barr. Olenellus thompsoni Hall, 0. vermontanus Hall. - and Dwight (W. B.) Preliminary report of S. W. Ford and W. B. Dwight upon fossils obtained in 1885 from rnetamorphic limestones of the Taconic series of Emmons, at Canaan, New York. PL 7. In Am. Jour. Sci., 3d series, vol. 31, 1886, p. 248. Genal spine of Trilobite, perhaps Asaphus megistos. Freeh (Fritz). Ueber das Devon der Ostalpen. In Zeitschr. Deutsch. geol. Gesell., Berlin, vol. 39, 1888, p. 659. Phacops grimburgi n. sp. Cheirurus quenstedti Barr., C. quenstedti mut. nov. precursor. Encrinurus novaki n. sp. Encrinurus sp. ? Arethusina haneri n. sp. Die palaozoischen Bildungen von Cabri^res, etc. In Zeitschr. Deutsch. geol. Gesell., Berlin, vol. 39, 1887, p. 360, pi. 24. Bronteus meridionalis T^>ni. Grass., B. rouvillei n. sp., B. subcampanifer n. sp., B. dormitzeri 1 Phacops fecundus Barr., P. fecundus mut. nov. suprade vonica, P. occitanicus Trom. & Grass., P. escoti n. sp., P. ct, tnt'septatus. Cheirurus gibbus. Lichas meridionalis n.sp. Proetus cuvieri ?, P. complanatus var. P. aff. planicaudce. Harpes rouvillei n. sp. Gehler (J. C.) De quibusdarn rarioribus agri Lipsi- ensis petrifactis. Spec. I. Trilobites f. Entomolithus paradoxus Linne. Lipsiae, 1793 (1 pi.) The author gives a sketch of the bibliography of the Trilobites, and fig- ures several specimens of Calymene Uumenbach'ti. Geinitz (H. B.) Grimdriss der Versteinerungs-Kunde. Dresden, 1846, 28 pis. The Trilobites are arranged into 19 families, as follows: 1. Calymene Brong. (Amphion and Zethits Pander). C. bhtmembachii, C. trislani, C. polytoma, C. callicephala. 70 CALIFORNIA ACADEMY OF SCIENCES. 2. Homalonotus Koiiig ( Trimerus and Dipleura Green. ) K— Dipleura dekayi, B. Trimerus. H. knightii Konig., H. delphinocephilus, H. armatus, H. herschelii. 3. Cyphaspis Burm. C. clavifrons Dalm. 4. Phacops Emm. (Pleuracanthus £ Peltura, Milne Edwards). P.lat- ifrons, P. protuberans, P. anchiops, P. rotundifrons, P. macrophthalmu*, P. odontocephalus, P. sclerops, P. hausmanni, P. caudatus, P. mucronatus, P. archnoides, P. stellifer. 5. Aeonia Burm. (Calymene Dalm., Asaphus Emm.) A. diops, A. con- cinna Dalm., A. cornuta Goldf. 6. Illaenus Burm. (Bumastus Aut.) A — Illaenus crassicauda, I. gignn- tem Burm. B — Bumastus. /. barriensis. 7. Archegonus Burm. (Illcenus Dalm. Asaphus Emm. Calymene H. v. Mey. Phillipsia~Port.) A — Dysplanuscentrotus. B — Archegonus cequaHa, A. globiceps. 8. Asaphus Brong. (Asaphus <£• Nileus Dalm. Isotelus Dekay. Hemi- crypturus Green). A — Nileus Dalm. A. (N.) armadillo Dalm. B — A. palpebrosus, A.expansus, A. tyrannus, A. raniceps, A. extenatus, A. pla- tycephalus. 9. Ampyx Dalm., A. nasutus Dalm., A. mammlllatus Sars., A. rostratus Sars. 10. Trinucleus Murch. (Cryptolithus Green). T. cataracti, T. granu- latus, T. Jimbriatus, T. ornatus, T. tesseilatus. 11. Ogygia Brong. O. buchii, 0. guettardi. 12. Odontopleura Emm. (Acidaspis Murch.) 0. ovata Emm., O. ett'tp- tica Burm. 13. Arges Goldf. A . armatus Goldf. 14. Bronteus Goldf. (Goldius DeKon.) B. fiabellifer Goldf., B. signatux Phil., B. laticauda Wai. 15. Paradoxides Brong. (Olenus Dalm.) P. bohemicus, P. spinulosus. 16. Olenus Burm. (Paradoxides and Olenus Aut.) 0. gibbosus, 0. tcrabaeoides, O.forficula Sars. 17. Conocephalus Zenk. C.sulzeri Schloth, C. striatus Emm. 18. Ellipsocephalus Zenk. E. Hoffi Schloth. 19. Harpes Goldf. H. ungula. Poecilopoda 3. Belinurus Konig, B. trilobitoides Buckl. Family 1. Eurypteridae: Eurypterus Dekay, E. remip.es, E. lacustri* Harlan, E. tetragonopthalmus. Family 2. Cytherinidae: Cytherina Lam., C. balthica Hisinger, C. pha*- eolus His. Carbonformation und Dyas in Nebraska. Dres- den, 1866, 5 pis. Phillipsia sp. ? Cythere nebrascensis n. sp., C. cyclas ? Keys var. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 71 Ueber Thierfahrten und Crustaceen-Reste in das uiiteren Dyas, oder dem unteren Rothliegenden der Gegend von Hohenelbe. In Isis, 1862, 2 plates. Dalmanites 1 kablikae n. sp. Kablikia n. g., K. dyadica n. sp. Branch- iopus stagnalis n. sp. Genzmar. Beschreibung eiiier versteinerten Muschel mit dreifachen Riicken. (*) In Gesell. der Ober-Lansitz Lobau, vol. 2, 1758; also, vol. 3, p. 185, figs. 17-25; Neues, Mag., Hamburg, 1772. The author gives a description of the Trilobites of Mecklenburg, especially those of his own collection. Gerstaecker (A.) In Bronn's Die Klassen und Ord- nungen des Thier-Reichs wissenschaftlich dargestellt in Wort und Bild. Leipsig und Heidelberg, 1866-79, p. 1142, pis. 43-49. The author illustrates Eurypterus remipes Dekay. Pterygotus anglicus Agas. Belinurus regince Baily. Prestwichia rotundata Woodw. Hernias- pis limuloides Woodw. Trinucleus bucklandi Barr., T. goldfussi Barr., T. oniatus Sternb. Lichens palmata Barr. Cheirurus quensledti Barr., C. gib- bus Beyr. Ampyx rouaulti Barr. Cyphaspis burmeisteri Barr., C. barrandi Cord., C. cerberus'B&n. Dionidefbrmosa 'Baxr . Proetus intermedius Barr. Arethusina konincki Barr. Harpes ven ulosus Cord., H. nugula Sternb. Pha- cops sternbergi Cord. Arionellus ceticephalus Barr. Acidaspis dormitzeri Cord., A. verneuilli Barr. Paradoxides bohemicus Boeck. Dalmanites vocialis~Barr. Phacops hoeninghausi Barr., P.fecundus'BarT. Conocephalites mlzeri Schloth. Calymene pulchra Barr., C. parvula Barr. Remopleurides radians Barr. Dindymene haidingeri Barr. Placoparia zippei Cord. Cro- mus beaumonti Barr. Illcenus wahlenbergianus Barr. Bronteus edwardsi Barr., B. brongniarti 'Barr. Asaphus nobilis Barr. Aeglinarediviva'BsLTr. Hydro- cephalus carens Barr. Sao hirsuta Barr. ^Eglina prisca Barr. Sphcerexochus mirus Beyr. Areia fritschi Barr. Slaurocephalus murchisoni Barr. Deiphon forbesi Barr. Phillipsia parabola Barr. Homalonotus bohemicus Barr. Am- phion senilis Barr. Ogygia desiderata Barr. Agnostus integer Barr., A. f/ranulatus Barr., A.nudus Beyr., A. rex Barr. Dalmanites hausmanni Brong. Ampyx nasutus Dalm. Deiphon forbesi Barr. Stanrocephalus murchisoni Barr. Hydrocephalus carens Barr. Cheirurus gibbus Beyr. Homalonotus dekayi Green. Phacops fecundus Barr. Phacaps rolborthi Barr. Asaphus platycephalus Stokes. Calymene blumenbachi Brong. Nileus armadillo Dalm. Acidaspis buchi Barr. Phacops sternbergi Cord. Zethus bellatulus Dalm. Phillipsia globiceps Phill. Spcerexochus mirus Beyrich. 72 CALIFORNIA ACADEMY OF SCIENCES. Ellipsocephalus Jioffi Schloth. Asaphus extenuatus Wahl. Acidaspis verneuilli Barr., A. leonhardi Barr. Dalmanites socialis Barr. Eye of Bronteti* brongniarti. Illcenus tauricornis, etc. Giebel (C.) Die silurische Fauna des Unterharzes. In Abhandl. Nat. Vereins Sachsen u. Thiiringeu, vol. 1, 1858, p. 1, 7 pis. Harpes bischofi A. Roem. Proetus pictus n. sp. Cyphaspis hydrocephala Romer. Phacops angustic.eps n. sp., P. ? sternbergi n. sp. Dalmanites tuberculatus n. sp. Lichas sexlobatus Romer. Acidaspis selcana Romer, A. hercynice n. sp. Bronteus bishofi 11. sp. Goldfuss (A.) Observation sur la place qu'occupent les Trilobites dans le r£gne animal. In Annales Sci. Nat. Paris, vol. 15, 1828, p. 82, pi. 2. Asaphus. Calymene. - Catalogue des Trilobites. In Handbuch der Geognosie von de la Beche, 1832. This list was copied by Dr. Jacob Green in his "Monograph of the Trilobites of North America," p. 20. - Beitrage zur Familie der fossilen Crustaceen. In Nova Acta Physico Med., vol. 19, 1839, Breslau, p. 353, pi. 33. Harpes n. g. Arges n. g. Bostrichopus u. g., B. antiquus n. sp. Arges armatus n. sp. Harpes macrocephalus n. sp. Brontes flabeU'tfer n. sp. II- Ifenus ? triacanthus n. sp. Systematische Uebersicht des Trilobiten und Beschreibung eniger neuen Arten. In Neues Jahrbuch fiir Mineral., 1843, p. 537, pis. 4-6. New genera Anthes, Gerastos and Symphysurus. The author classifies 204 species under 31 genera principally on the characteristics of the eyes as follows: I. Without eyes, a— without segments. 1, Agnostus Brong. b — with segments. (a) segments of the pygidiuni effaced. 2, Ampyx. 3, Crypto- lithus. 4, Arges. 5, Olenus. (b) segments of the pygidium distinct. 6, Zethus. 7, Otarion. II. Eyes smooth or finely reticulated. A — Thorax and pygidium indis- tinctly separated, (a) The last segment without appendages. 8, Para- doxides. 9, Amphion. 10, Harpes. (b) The last segment with append- ages. 11, Bronteus. 12, Ellipsocephalus. 13, Ceraurus. B — Pygidium clypiform, axis and sides not segmented, a — without dorsal grooves. The axis and sides indistinct. 14, Nileus. 15, Bumastus. b— Dorsal grooves faint. Grooves of the sides invisible on the pygidium. 16, Dipleura. c — Dorsal grooves prolonged even to the pygidium. 17, Symphysurus. 18, Illoeuus. 19, Isotelus. Pygidium clypiform, axis seg- BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 73 mented, sides smooth. 20, Cryptonymus. 21, Ogygia. Pygidium with distinct segments on the axis and sides. 22, Odontopleura. 23, Cono- > •< ]>halu$. 24, Gerastos. 25, Calymene. 26, Homalonotus. III. Eyes reticulated, a — Front lobed. 27, Asaphus. 28, Acaste. b — Front not lobed. 29, Phacops. IV. Eyes missing. ^Irgres. V. Anthes. The author places Olenus scar ab&oides Wahl. and O-.forficula bars, under this new genus. Dr. Goldfuss gives brief descriptions of the following species : 1. Agnostus pisiformis Linne, A. spiniger His., A. Icavigatus His., A. tuberculatus Klod., A. gigas Klod., A. granum Schlot. 2. Ampyx nasutus Dalm., A. mammillatus Sars., A. restrains Sars., A. j>achyrrhinusD&lm., A. incertus Belong. 3. Cryptolithus granulatus Dalm., C. tessellatus Green., C. caractaci Murch., C. Jimbriatus Murch., C. radiatus Murch., C. lloydii Murch., C. rxdus Murch., C. euapkoide* Murch., C. bronnii S. & B., C. bigsbyi Green., C. concintricus Eaton, C. gracilis Murch. C. ivilkensii Miinst., C. ellipticus Miinst., C. lewis Miinst. , C. nilssonii Miinst. 4. Arges armatus Gold., A. bimucronatus Murch., A. quadrimucronatus Murch., A. radiatus Gold. tab. 4, fig. 1. 5. Anthes Gold. (Olenus Dalm.) A. scrabceoides Wahl., A.forficula Sars. 6. Olenus gibbosus Dalm., O. acuminatus Emm.. 0. attenuatitS Boeck, 0. latiis Boeck, O. rugosus Boeck, O. triarthrus Harlau, 0. arcuatus Harlan. 7. Zethus uniplicatus Pand., ^. verrucosus Pand. 8. Otarion dijfractum Zenk. . 0. squarrosum Zenk. 9. Paradoxides tessini Brong., P. longicaudatus Zenk., P. pyramidalis Zenk., P. latus Zenk., P. spinulosus Wahl., P. boltoni Green, P. harlani Green, P. actinurus Dalm., P. spinosus Boeck. 10. Amphion frontilobus Pand., A. odontocephala Green. 11. Harpes macrocephalus Gold., H. speciosus Miinst. 12. Bronteus alutaceus tab. 6, fig. 1, B. granulatus Gold. tab. 6, fig. 2, B.fiabellifer Gold. tab. 6, fig. 3, B. intermedius Gold. tab. 6, fig. 4, B. scaber Gold., tab. 6, fig. 5, B. canaliculatus Gold. tab. 6, fig. 6, P. signatus Phill., B. costatus Miinst. 13. Ellipsocephalus ambiguus Zenk. 14. Ceraurus pleurexanthemus Green, C. acicularis S. & B., C. lyra S. it B. 15. Nilens armadillo Dalm., ^V\ chiton Pand., N. depressus S. & B., JV. Ijlomerinus Dalm. 16. Bumastus barriensis Murch., B. franconicus Miinst., B. planus Miiust. 17. Dipleura dekayi Green. 18. Symphysvrus laviceps Dalm., S. palpebrosus Dalm., S. Icevis Boeck, S. intermedius Boeck, S. oblongatus Boeck, S. brevkaudus Deslong. 74 CALIFORNIA ACADEMY OF SCIENCES. 19. IllfKiius crassicauda Dalm., /. perovalis Murch., /. centrotus Dalm., /. asellusHoeck, I, triacanthus Gold, is referred to Phacops macrocephahi*. 20. Isotelus gigas, I. me galops Green, /. steyops Green, /. cyclop* Green, /. planus Green, /. platycephalus Stokes. 21. Cryptonymus expansus Dalm., C. extennatus, C. limbatus Boeck. ('. striatus Boeck, C. acuminatus Boeck, C. platynotus Dalm., C. schroetrr Schlot. 22. Ogygia guettardi Brong., 0. desmarestii Broiig., 0. buchii Brong., O. corndensis Murch., 0. tyrannus Murch., 0. subtyrannus D'Arch. & Vern., O. dilatata Briinn., 0. angustifrons Dalm., 0. frontalis Dalm., 0. grand!* Sars., 0. pusilla Miinst., 0. grandceva Gold., 0. sillimani Brong. (De In Beche Man Geol.) 23. Odontopleura ovata Emm., 0. dentata Gold. tab. 4, fig. 2, 0 . bright/! Murch. 24. Conocephalus sulzer! Schloth, C. striatus Emm., C. zippei Sternb. 25. Gerastos lavigatus Gold, table 4, fig. 3, a-"b. Proetus cuvieri Stein., (T. granulosus Gold. tab. 4, figs. 4, a-b, G. cornutus Gold, tab. 4, figs. 1, G. concinnus Dalm., G. globiceps Phill., G. schuster iHoem., G.sph. erina n. sp., Z>. bifida n. sp., D. boothi Green. Phacops bufo Green, P. rana Green, P. cristata n. sp., P. bombifrons n. sp.,P. cacapona n. sp. Proetus conradi n. sp., P. angustlfrons n. sp., P. hesione n. sp., P. clarusn. sp., P. crassimarginatus Hall, P. canaliculatus n. sp., P. vemeuili n. sp., P. haldemani n. sp., P. rowi Green, P. marginalia n. sp., P. mocrocephalus n. sp., P. macrocepha- lus var. a, P. auriculatus n. sp., P. occidens, P. longicaudus n. sp. Lichas armatus n. sp., L. grandis n. sp. Acidaspis sp.? Beyrichia punctulifera n. sp. Leperditia cayuga n. sp., L. spinulifera n. sp., L. seneca n. sp. Homalonotus dekayi Green. Note on the genus Cypricardites. In Fifteenth Kept. New York State Cab. Nat. Hist., 1861, p. 192. Plate illustrating^certain genera and species described by T. A. Conrad in the 5th Annual Kept. Pal. Dept. New York Geol. Survey, 1841, pi. 11 (reprint). Dicranurus, pi. 11, fig. 1. Aspidolites, pi. 11, fig. 2. Acidaspis tubercu- latus, pi. 11, fig. 3. Asaphus ? acantholerus Conrad, A. 1 denticulatus Conrad. Note upon the Trilobites of the Hudson River group, in the town of Georgia, Vermont. In Geol. Vermont, vol. 1, 1861, p. 367, pi. 13. Barrandia thompsoni Hall, B. vermontana Hall. Bathynotus holopyga Hall. Palaeontology of Wisconsin. Remarks upon the condition of the fossils in the rocks of the several formations. Catalogue of fossils known in the Palae- ozoic formations of Wisconsin, with observations upon some of the known species and descriptions of several new forms. 84 CALIFORNIA ACADEMY OF SCIENCES. Geol. Survey Wisconsin, vol. 1, 1862, p. 425. Dikelocephalus minnesotensis, D. pepinensis. Asaphus barrandi, A.(Iso- telus) gigas. Dalmania vigilans, D. meta n. sp. Calymene mammillata n. sp. Acidaspis danai n. sp. • On a new Crustacean from the Potsdam sand- tone. A letter addressed to Principal Dawson, dated Albany, Oct. 31, 1862. In Canadian Naturalist, vol. 7, 1862, p. 443, figure. See The Geologist, vol. 6, London, 1863, p. 247, figure. Aglaspis n. g. (A. barrandi Hall.) On the occurrence of Crustacean remains of the genera Ceratiocaris and Dithyrocaris , with a notice of some new species from the Hamilton group and Gen- esee slate. In Sixteenth Kept. New York State Cab. Nat. Hist., Albany, 1863, p. 71, plate. Ceratiocaris armatus n. sp., C. longicaudus n. sp., C. ? punctatus n. sp. Dithyrocaris neptuni n. sp. Preliminary notice of the fauna of the Pots- dam sandstone, with remarks upon the previously known species of fossils, and description of some new ones from the sandstones of the Upper Mississippi Valley. In Sixteenth Kept. New York State Cab. Nat. Hist., 1863, p. 119, 6 pis. Supplementary note, p. 110. Triarthrella n. g. Chariocephalus n. g. Ptychaspis n. g. Illcenurus 11. g. Pemphigaspis n. g. Aglaspis n. g. Descriptions of Dikelocephalus minnesotensis Owen also var. limbatus, D. minnesotensis var. D. pepinensis Owen, D. spiniger n. sp., D. misa n. sp., D. osceola n. sp. Conocephalites minor Shumard, C. minutus Brad- ley, C.eos n. sp., C.perseus n. sp., C. shumardin. sp., C. nasutusn. sp., C. oweni n. sp., C. eryon n. sp., C. anatinus n. sp., C. patersoni n. sp., C. ? binodosus n. sp., C.winona n. sp., C. iowensisOwen., C. wisconsensisOvfen, C. hamulus Owen, C. diadematus n. sp. Arionellus bipunctatus Shumard. Ptychaspis miniscaensis Owen, P. granulosa Owen. P./sp. Chariocephalus ivhitfieldi n. sp. Illcenurus quadratus n. sp. Triarthrella auroralis n. sp. Agnostus josepha n. sp., A. parilis n. sp., A. disparilis n. sp. Aglaspis barrandi n. sp. Pemphigaspis bullata n. sp. Amphion ? matutina n. sp. Conocephalites ? (Arionellus ?) dorsalis n. sp., C. optatus n. sp. Lichas grandis (subgemus f Terataspis) L. armatus, L. boltoni, L. nereusu. sp. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 85 Notice of some new species of fossils from a locality of the Niagara group in Indiana, with a list of identified species from the same place. In Trans. Albany Inst., vol. 4, 1864, p. 195. Author's edition published May 2, 1863, pp. 1-34. Plates of the species 28th Kept. New York State Mus. Nat. Hist, 1879. Dalmania verrucosa Hall. Cyphaspis christyi Hall. Lichas breviceps Hall, L. boltoni var. occidentalisHQ.ll. CalymeneniagarensisTLa.il. ffomalo- notus delphinocephalus Green. Illcenus barriensis Murch. Account of some new or little known species of fossils from rocks of the age of the Niagara group. In Twentieth Kept. New York State Cab. Nat. Hist., 1867, p. 305, 21 pis. Originally printed in advance for the 18th Kept. New York State Cab. Nat. Hist., 1864. Revised edition, Albany, 1870, with 22 pis. The following Crustacea are described in the edition of 1867. Illcenus armatus n. sp., /. insignis u. sp.. /. imperator n. sp., /. (bumastus) ioxus Hall, I. cumiculus n. sp. Bronteus acamasn.sp. Acidaspis danai Hall. Lichas breviceps ? Hall, L. sp.? L. pugnax W. & M., L. decipiens W. &M. Sphcerexochus romingeri Hall. Calymeneniagarensis'H.&ll. Encri- nurus nereus n. sp. Dalmania vigilans. Ceraurus niagarensis n. sp. Leper ditia fonticola n. sp. The revised edition contains descriptions of the following species not in the edition of 1867, viz. : Lichas pugnas W. & 3VL, L. obvius n. sp. * Geological Survey of the State of Wisconsin, 1859-63. Palaeontology. Pt. 3. Organic remains of the Niagara group and the associated limestones. 94 pp., 18 pis. Albany, 1871. The same was published in 1864 in advance for the 18th Kept. New York State Cab. Nat. Hist., 1867, under the title of "Account of some new or little known species of fossils from rocks of the age of the Niagara group." See 20th Kept. New York State Cab. Nat. Hist., rev. edition, 1870, p. 347. Descriptions of new species of Crinoids and other fossils from strata of the age of the Hudson River group and Trenton limestone. In Twenty-fourth Kept. New York State Mus. Nat. Hist., 1872, p. 205, 3 pis. Dalmania breviceps n. sp. Proetus parviusculus n. sp. Advance sheets of this article were printed and distributed in November, 1866, except the first four species of Crinoidea mentioned in the foot note 86 CALIFORNIA ACADEMY OF SCIENCES. on p. 205, which were first published in 1871 in a pamphlet entitled "New species of fossils from the Hudson Kiver group in the vicinity of Cincin- nati, Ohio." Descriptions of new species of fossils from the Hudson River group in the vicinity of Cincinnati, Ohio. In Twenty-fourth Kept. New York State Mus. Nat. Hist., Albany, 1872, p. 225, 1 pi. Published Oct., 1871, in advance of the State Museum Report. Leperditia ( I sochilina ) cylindrica n. sp., L. ( fsochilina) minutissima 11. sp. Beyrichia tumifronsu. sp., B. oculifer n. sp. The fauna of the Niagara group in Central Indiana. Documents only of Twenty-eighth Kept. New York State Mus. Nat. Hist., 1876, 34 pis. Description of Plate XXXII. Leperditia faba n. sp. Beyrichia granu- losa n. sp. Cyphaspis christyi Hall. Calymene niagarensis Hall, Sphai- rexochus romingeri 1 Hall. H omalonvtus delphinocephalus ? Green. Illaenus armatus ? Hall. Description of Plate XXXIII. Dalmania vigilans Hall, D. verrucosa Hall, D. bicornis n. sp. Description of Plate XXXIV. Lichas breviceps Hall, L. boltoni var. occidentalis Hall. Lichas sp.? Dalmanites verrucosus Hall. Illustrations of Devonian fossils: Gastero- poda, Pteropoda, Cephalopoda, Crustacea, and Corals of the Upper Helderberg, Hamilton and Chemung groups, etc. Albany, 1876, 7 pp., 133 pis. Crustacea — Calymene platys Green, C. niagarensis Hall. Homalonotus dekayi Gr. Phacops cristata Hall, P. rana ?, P. bombifrons Hall, P. rana Green, P. cacapona Hall, P. bufo Green, P. nupera Hall. Dalmanites anchiops Green, also var. armatus. Dalmanites sp. ?, D. denticulatus Con- rad, D. emarginatus n. sp., D. concinnus n.sp., D.regalis n. sp., D. cegeria Hall, D. selenurus Eaton, D. coronatus Hall, D. calypso Hall, D. erina Hall, D. aspectans Conrad, D. helena Hall, D. myrmecophorus Green, D. boothii Green, D. pleione Hall. Acidaspis ( Terataspis) grandis Hall. Acid- aspis sp.?, A. (Terataspis) eriopis Hall, A. (Terataspis) sp.? Lichas pus- tulosus Hall. Dalmanites acantholeurus Conrad. Proetus angustifrons Hall, P. conradi Hall, P. canaliculatus Hall, P. clarus Hall, P. hesione Hall. Phillipsia minuscula n. sp. Proetus verneuili Hall, P. crassimar- ginatus Hall, P. longicaudus. Phillipsia ? ( Brachymetopus 'I) ornata n. sp. Proetus roivi Green, P. haldemani Hall, P. macrocephalus Hall, P. occidens BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 87 Hall, P. ma rginalis Conrad. Phillipsia levis n sp.? Dithyrocaris neptuni Hall. Ceratiocaris armatus Hall, C. (Arwtozoe) punctatus Hall. The fauna of the Niagara in Central Indiana. In Twenty-eighth Kept. New York State Mus. Nat. Hist., 1879, p. 99, 34 pis. Crustacea — Leperditia faba. Beyrichia granulosa. Calymene niagaren- sis. Homalonotus delpkinocephalus Green. Cyphaspis christyi. Illaenux armatus. Ceraurus (Cheirurus) niagarensis. Notes on the genus Dalmanites and Odontocephalus. Dalmanites vigi- lans, D. verrucosus, D. bicomis. Lichas breviceps, L. boltoni var. Occident- all*. Lichas sp. ?, L. emarginatus Hall. Description of new species of fossils from the Niagara formation at Waldron, Indiana. In Trans. Albany Inst., vol. 10, 1883, p. 57. Read March 18, 1879, and published separately in 1881. Acidaspis fimbriata n. sp. Illcenus ( Bumastus) ioxus Hall. Description of the species of fossils found in the Niagara group at Waldron, Indiana. In Eleventh Ann. Kept, for 1881, Dept. Geol. Nat. Hist. Survey, Indiana, 1882, p. 217, 36 pis. ^ Leperditia faba. Beyrichia granulosa. Calymene niagarensis. Homa- lonotus delphinocephalus. Cyphaspis christyi. Acidaspis fimbriata. Illcenus armatus, I. (Bumastus) ioxus. Ceaurus niagarensis. Note on the genus Dalmanites and Odontocephalus. Dalmanites vigilans, D. verrucosus, D. bicornis. Lichas breviceps, L. boltoni var. occidentalis. Note on Eurypteridce of the Devonian and Car- boniferous formations of Pennsylvania, with a supple- mentary note on the Stylonurus excelsior. In Proc. Am. Assoc. Adv. Sci., 33d meeting, Phila., 1884, p. 420. Eurypteridce from the Devonian and Carbon- iferous formations of Pennsylvania. With 6 pis. Extracted Kept. Prog. PPP., 2d Geol. Survey Pennsylvania, 1884. Eurypterus ( Anthraconectes ) mazonensis M. & W., E. beecheri n. sp., E. pennsylvanicus C. E. Hall, E. mansfieldi C. E. Hall, E. stylus n. sp., E. potens n. sp. Note on the Eurypteridce of the Devonian and Carboniferous formations of Pennsylvania. In Second Geol. Survey Pennsylvania, Kept. Prog. PPP., 1884, 6 pis. For list of species see the above reference. 88 CALIFORNIA ACADEMY OF SCIENCES. Description of a new species of Stylonurus from the Catskill group. In Thirty-sixth Kept. New York State Mus. Nat. Hist., 1884, p. 76, pi. 5. Stylonurus excelsior Hall. There was a short notice of this species published by D. S. Martin (Trans. New York Acad. Sci., vol. 2, 1882, p. 8). This notice was based upon a cast of the carapace in the New York State Museum, which had been labeled with name and locality by Prof. James Hall. and Whitfield (R. P.) Descriptions of new species of fossils from the vicinity of Louisville, Ky., and the Falls of the Ohio. In Twenty-fourth Kept. New York State Mus. Nat. Hist., 1872, p. 181, pi. 13, figs. 20 and 21. Illcenus cornlgerus H. & W. Geological Survey of Ohio. Vol. 2. Geology and palaeontology. Pt. 2. Palaeontology. 1875, p. 67, pis. 1-12. Leper ditia (Isochilina) cylindrica Hall, L. (Isochilina) minutissima Hall. Beyrichia tumifrons Hall, B. oculifera Hall, B. chamber si Miller, B. quad- rilirata n. sp. Plumulites jamesi n. sp. Calymene christyi Hall. Dai- mania breviceps Hall. Proetus parvisculus Hall. Calymene niagarensis Hall. Encrinurus ornatus n. sp. Lichas breviceps Hall. Palaeontology. In U. S. Geol. Expl. 40th Parallel, vol. 4, pt. 2, 1877, 7 pis. Crepicephalus (Loganellus) haguei n. sp., C. (L.) nitidus n. sp., C. (L.) granulosus n. sp., C. (L.) unisulcatus n. sp., C. (L.) simulator n. sp., C. (L.) anytus n. sp., C. (Bathyurus?) angulatus n. sp. Pterocevhalus : Conocephalites (Pterocephalus) laticeps n. sp. Ptychaspis pusulosa n. sp. Chariocephalus tumifrons n. sp. Dikellocephalus bilobatus n. sp., D.fla- bellifer n. sp. Agnostus communis n. sp., A. neon n. sp., A. prolongus n. sp., A. tumidosus n. sp. Conocephalm subcoronatus n. sp. Crepicephalus ? ( Loganellus Jquadrans n. sp. Dikellocephalus quadriceps n. sp., D. wah- mtchensis n. sp., D. ? gothicusn. sp. Bathyurus pogonipensis n. sp. Ogy- gia producta n. sp., 0. parabola n. sp. Proetus peroccidens n. sp., B. lo- ganensis n. sp. Crep. (L.) maculosus n. sp. Dikellocephalus multicinctus n. sp. - assisted by Clarke (John M.) Geological Sur- vey of the State of New York. Palaeontology. Vol. VII. Text and plates, containing descriptions of the Trilobites and other Crustacea of the Oriskany, Upper BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 89 Helderberg, Hamilton, Portage, Chemung, and Catskill groups. Albany, 1888, 236 pp., 36 pis. Trilobita: Dalmanites subgeii. Hausmanni u. s. g. Coronura n. s. g. Mesothyra n. g. Rhinocaris n. g. Schizodiscus n. g. Strobilepsis n. g. Calymene platys Green. Homalonotus major Whitfield, H. dekayi Green. Bronteus tullius Hall. Phacops cristata Hall, also var. pipa Hall, P. rana Green, P. bufo Green, P. cacapona Hall, P. nupera Hall. Dalmanite* ( Hausmania) pleuroptyx Green, D. (H.) concinnus Hall. Dalmanites (Hausmania) concinnus var. serrula Hall, D. (H.) phacoptyx Hall, D. (H.) meeki Walcott, Z>. (Coronura) aspectans Conrad, D, (C.) myrmecophorus Green, D. (C.)emarginatus Hall, D. (Cryphceus) comis Hall, D. (C.) pleione Hall, D, (C.) boothi Green also var. callitelus Green, D. (C.) barrisi Hall, D. (Odontocephalus) selenurus Conrad,/). (O.)bifidus Hall, D. (O.) cegeria Hall, D. (0.) coronatus Hall, D. (Corycephalus) regalia Hall, D. (C.) pygmaeus Hall, D. (Chamops) anchiops Green also var. ar- matus Hall, D. (C.) anchiops var. sobrinus Hall, D. (C.) calypso Hall, D. (C.) e.rina Hall, D. (C.) macrops Hall. Acidaspis callicera Hall, -4. sp., .4. romingeri Hall. Lichas (Terataspis) grandis Hall, L. (<7J hispidus Hall, £. (<7J eriop» Hall, £. (C7J hylaeus Hall, £. (Arges) contusus Hall, L. (Ceratolichas) gryps Hall, L. fC.^ dracon Hall. Proetus conradi Hall, P. angustifrons Hall, P. hesione Hall, P. curvimarginatus Hall, P. latimar- •jinatus Hall, P. cassimarginatus Hall, P. folliceps Hall, P. clarus Hall, P. canaliculatus Hall, P. verneuili Hall, 1*. microgemma Hall, P. stenopyge Hall, P. ovifrons Hall, P. delphinulus Hall, P. ? planimarginatus Meek, P. tnmidus Hall, P. haldemani Hall, P. macrocephalus Hall, P. rou?z' Green, P. jejunvs H^all, P. phocion Billings, P. prouti Shumard, P.nevadce Hall, P. occidens Hall, P. .? longicaudus. Phaethonides arenicolus Hall, P. varicellus Hall, P. gemmceus Hall, P..? denticulatus Meek. Cyphaspis minuscula Hall, C. stephanophora Hall, (7. diadema, C. hybrida Hall, (7. ornata Hall also var. baccata Hall, (7. craspedota Hall, C'. Jcey& Hall. Xiphosura: Protolimulus eriensis Williams. Eurypterus beecheri Hall. Stylonurus excelsior Hall, 5. .? (Echinocaris?) wrightianus Dawson. Phyllocardia: Ceratiocaris longicauda Hall, (7. beecheri Clarke, C'.? «frn- jo/ea: Clarke. Echinocaris punctata Hall, £J. whitfieldi Clarke, ^T. condylepis Hall, ^. socialis Beecher, ^. sublcevis Whittield, J7. pustulosa Whitfield, ^. multinodosa Whitfield. Elymocaris capsella Hall, ,&. siliqua Beecher. Tropi- docaris hamiltonensis Hall, T7. bicarinata Beecher, 7'. interrupla Beecher. Pinacaridae: Mesothyra oceani Hall, 3f. neptuni Hall, Jtf". spumcea Hall. Dithf/rocaris veneris, D. belli Woodward. Rhinocaridte : Rhinocaris columbina Clarke, /?. scaphoptera Clarke. Discinocaridse: Spathiocaris emersoni Clarke. Dipterocaris pennce-daedali Clarke, Z). procne Clarke, Z>. pes-cervce Clarke. Decapoda: Palceopalcemon newberryi Whitf. Phyllopoda: Eslheria pulex Clarke. Schizodiscus capsa Clarke. 90 CALIFORNIA ACADEMY OF SCIENCES. Cirripedia: Protobalamishamiltonensis Whitfield. Palceocreusia devonicus Clarke. Lepadidae: Strobilepsis spinigera Clarke. Turrilepas flexuosus Hall, T. cancellatus Hall, T. devonicus Clarke, T. squama Hall, T. nitidulus Hall, T. foliatus Hall, T. tener Hall, T. ? newberryi Whittield. Genera and species not Devonian described in the volume: Calymenc niagarensis Hall. Homalonotus vanuxemi Hall. Phacops logani Hall. Dalmanites (Hausmania) pleuroptyx Green, D. (Corycephalus) dentatu* Barrett. Lichas ( Dicranogmus ) ptyonurus Hall, L. (Conolichas) pustulosus Hall, L. (C.) bigsbyi Hall. Proetus missouriensis Shumard. Phaethonides cyclurus Hall, P. macrobius Billings. Cyphaspis coelebs Hall. Phillipsia sp.? Eurypterus prominens Hall, E. approximates Hall. Tropidocaris alternata Beecher. Report of the Director. In42d Eep. N. Y. State Mus. 1889, p. 1, plate. Crustacean tracks. Hancock (Abbany). Remarks on certain vermiform fossils found in the Mountain limestone districts of the north of England. In Kept. 28th Meeting Brit. Assoc. Adv. Sci., 1858, Tran. of Sec., p. 80. Tracks of Trilobites. Hare (Sid. J.) Trilobites of the Upper Coal Measure Group of Kansas City, Missouri. In the Kansas City Scientist, vol. 5, no. 3, 1891, plate. The author describes Phillipsia nodacostatus n. sp., P. major Shumard, P. cliftonemis Shumard. He refers Proetus longicaudatus Hall to Phillipsia major, remarking that the upper coal measures extend westward to near West Counday, Green- wood County, Kansas, whereas the trilobite in question was found some 25 miles east of this line at Madison. Harlan (Richard). Critical notices of various organic remains hitherto discovered in North America. In Trans. Geol. Soc. Pennsylvania, vol. 1, pt. 1, 1834, p. 46, 1 pi. The author herein describes two species of Eurypterus, and gives a list of North American Trilobites. Eurypterus remipes Dekay, E. lacustris Harlau. Notice of nondescript Trilobites from the State of New York, with observations on the genus Triarthru*, etc: In Trans. Geol. Soc. Pennsylvania, vol. 1, pt. 2, 1835, p. 263, pi. 15. Paradoxidcs triarthrus Har., P. acuatus Har., P. scarabceoidesRrong. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 91 Medical and physical researches, or original memoirs in medicine, surgery, physiology, geology, zo- ology, etc. Phila., 1835, 36 pis. Contains a republication of the above articles under Harlan, pp. 253- 313 and 400-403. Harley (J.) On the Ludlow bone bed and its crusta- cean remains. In Quart. Jour. Geol. Soc. London, vol. 17, 1861, p. 542, pi. 17. The author refers to the class Crustacea certain minute bodies of various forms from the Ludlow bone beds, including the Conodonts described by Pander. Twenty species are described and illustrated under the provisional genus Astacoderma. Hartt (C. F.) Fossils of the Primordial or Acadian group at St. John. In Acadian Geology, the geological structure, organic remains, and min- eral resources of Nova Scotia, by J. W. Dawson. Appendix B. List of New Brunswick fossils. See Bailey's "Observation on the Geol. of Southern New Brunswick, etc.," 1865, p. 143. > On Phillipsia vindobonensis from the Carbon- iferous Limestone of Nova Scotia. In Canadian Naturalist, new series, vol. 3, 1868, p. 214. and Rathbun (Richard). Morgan Expedition, 1879-71.) On the Devonian Trilobites and Mollusks of Erere, Province of Para, Brazil. In Annals Lyceum Nat. Hist., New York, vol. 11, 1875, p. 110. Dalmania paituna n. sp. Homalonotus oiara n. sp. Haswell (W.) Silurian Formation of the Pentland Hills, 1865. Entomis impendens, n. sp. p. 38, pi. 3, fig. 11. Hauer (F. von). Ueber Barrande's Versuch einer Classifikation der Trilobiten. In Sitzungsber. d. Wien Akad. Math.-naturw. Classe, V, p. 304, 1850. Haulp (K.) Die Fauna der Graptholitengest. In Lausitzische Mag., vol. 44, Gorlitz, 1878, p. 75, pi. 5. Calymene blumembachii Brong. Dalmania caudada Brttnn, Pkacops 92 CALIFORNIA ACADEMY OF SCIENCES. sp.? P. variolaris. Odontopleura marklini Ang. Asaphussp."! Raphiso- phorus culminatus Ang. Ampyx ? sp. (brevinasutus), A. sp.? Beyrichia kloedeni, B. tuberculata Kloden, n. sp.? Cytherina (Leperditia) 6 species. Hawle (Ignatz). See Corda (A. J. C.) and Hawle (Ignatz). Hayden (F. V.) See Meek (F. B.) and Hayden (F.V.) Heidenhain (F.) Ueber Graptholitenflihrende Dilu- vial-Geschiebe der norddeutschen Ebene. In Zeitschr. Deutsch. geol. Gesell., vol. 21, 1869, p. 143, plate. Calymene blumenbachii. Dalmanites caudata. Odontopleura ovata, 0. nutica. Cyphaspis. Homalonotus. Beyrichia klceden, B. maccoyana, B. tuberculatus. Hellman (A.) Die Petrefacten Thiiringens. Cassel, 1866, 5 pts., 24 pis. Dalmania tuberculata. Acidaspis buchi. Paradoxides spinosus. Hermann (L. D.) Maslographia Brigse, Massel, 1711, pi. 9, fig. 50; pi. 11, fig. 44; pi. 12, fig, 31. The author herein compares a fragment of the pygidium of an Encrin- urus to a scollop shell. Herrick (C. L.) A sketch of the geological history of Licking county, accompanying an illustrated catalogue of Carboniferous fossils from Flint Ridge, Ohio. In Bull. Deiiison Univ., vol. 2, pt. 1, 1887, p. 5, 7 pis. Phillipsia sawallovi Shumard, P. shumardi Herrick, P. meramecensis Shumard, P. missouriensis Shumard, P. major Shumard, P. cliftonensis Shumard, P. sangamonsis Meek & Worthen, P. scitula M. & W., P. doris (Hall) Winchell, P. rockfordensis Winchell, P. insignis Winchell, P. howl Billings, P. vindobonensis Hartt, P. trinucleata n. sp., P. leei Wood. P. gemmulifera Phill., P.truncatula Phill., P. eichwaldi var. mucronata. P. colei M'Coy. P. derbyensis Mart. Griffithides globiceps Phill., G. longis- pinus Portl., G. longiceps Portl., G. seminiferus Phill., G. moriceps, G. acanthiceps Wood, G. roemeri Moller, G. gruenwaldti Moller, G. calcaratus M'Coy. Brachymetopus ouralictisDeVer., B. maccoyi Port. Proetiis. Dal- manites? cuyahogte Claypole. Appendix 2. A Waverly Trilobite. In Bull. Denison Univ., vol. 2, pt. 1, 1887, p. 69, pi. 7, fig. 14. Phillipsia shumardi Herrick. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 93 The Geology of Licking County, Ohio. PL IV. The Subcarboniferous and Waverly groups. In Bull. Denison Univ., vol. 3, 1888, p. 13, pis. 2, 11 and 12. Phillipsia meramecensis Sh., P. shumardi Her., P. prcecursor Her. Geology of Licking County. Pt. 4. In Bull. Denison Univ., vol. 4, 1889, 1 pi. Crustacea, p. 49. — Phillipsia serraticaudata n. sp., P. ? consors n. sp., P. meramecensis Shumard, P. (Proetus) precursor Herrick. Proetus ? cf. haldermani Hall, P. minutus n. sp. Phaethonides occidentalis n. sp., P. spinosus n. sp., P. ? immaturus n. sp., P. ? lodiensis Meek. Cythere ohio- ensis n. sp. The Cuyahoga Shales and the problem of the Ohio Waverly. In Bull. Geol. Soc. America, vol. 2, 1891, p. 31, plate. Phaethonides spinosus Herr. Phillipsia? consors Herr., P. meramecensis Shumard. Cytherella unioniformis n. sp. Other species are mentioned, but not described in this article. Notes upon the Waverly group in Ohio. In Am. Geologist, vol. 3, 1889, p. 94, 4 pis. (not descriptive). Hibbert (Dr.) On the fresh^-water limestone of Burdie- house, in the neighborhood of Edinburgh, belonging to the Carboniferous group of rocks; with supplement- ary notes on other fresh-water limestones. In Trans. Koyal Soc. Edinburgh, vol. 13, 1836, p. 169, pi. 9. The author gives in his memoir several small woodcuts of his Cypris scotoburdigalensis and Daphnoidia. The latter received the name of "Hibberti" in Morris's Catalogue; the former is considered as a sufficiently distinct variety of Lerperditia okeni. The author gives reduced figures of Eurypterus remipes Dekay and E. lacustris Harlan, taken from Dr. Kichard Harlan's article on "Organic Remains of North America." Hicks (Henry). Note on the genus Anopolenus. In Quart. Jour. Geol. Soc. London, vol. 21, 1865, p. 477, figures. Description of new species of fossils from the Longmynd rocks of St. David's. In Quart. Jour. Geol. Soc. London, vol. 27, 1871, p. 399, pi. 15. Plutonia sedgwicki n. sp. Paradoxides harknessi n. sp. Conocoryphe lyellii n. sp, C. solvensis n. sp. Microdiscus sculptus n. sp, Agnostus antiqua n. sp. Leper ditia 1 cambrensis n. sp. 94 CALIFORNIA ACADEMY OF SCIENCES. On some undescribed fossils from the Menevian group, with a note on the Entomostraca by Prof. T. Ru- pert Jones. In Quart. Jour. Geol. Soc. London, vol. 28, 1872, p. 173, pis. 5-7. Cerausia n. g. Agnostus davidis Salter, A. eskriggei n. sp., A.scutalis Salter, A. scarabceoides Salter, A. barrandei Salter. Arionellus longicephalus n. sp. Erinnys venulosa Salter. Carausia menevensis n. sp. Holoceph- alina inflata n. sp. Conocoryphe homfrayi Salter, C. coronatus Barr. Anopolenus impar n. sp., A. salteri n. sp Notes on the Entomostraca by Prof. T. Kupert Jones. Leper ditia hicksii Jones. Entomis buprestis Salter. On the Tremadoc rocks in the neighborhood of St. David's, South Wales, and their fossil contents. In Qnart. Jour. Geol. Soc. London, vol. 29, 1873, p. 39, 3 pis. Neseuretus n. g., N. quadratus n. sp., N. recurvatus n. sp., N. ramsay- ensis n. sp., N. ? elongatus n. sp. Niobe menapiensis n. sp., N. solvensis n. sp. Descriptions of new species of fossils from the Arenig group of St. David's. In Quart. Jour. Geol. Soc. London, vol. 31, 1875, p. 182, 3 pis. Ampyx salteri Hicks. Trinucleus etheridgei n. sp., T. ramsayi n. sp. Illaenus hughesii n. sp. Illaenopsis ? acuticaudata n. sp. Aeglina boia, Hicks, A . ostusicaudata n. sp. Barrandea homfrayi n. sp. Phacoparia cambriensis n. sp. Phacops llanvirnensis 11. sp. Calymene hopkinsoni n. sp. Appendix to Fossiliferous Cambrian shales, near Caernarvon, by J. E. Marr. In Quart. Jour. Geol. Soc. London, vol- 32, 1876, p. 135. Caryocaris marrii n. sp. Aeglina hughesii n. sp. Hisinger (W.) Anteckningar i physik och geognosi under resor uti Sverige och Norrige. Stockholm, 8 pts. , 1828-40. The first three parts contain scarcely anything on Crustacea; the re- maining parts contain only enumerations of fossils, without descriptions. Cytherina phaseotus His., pt. 5, pi. 8, fig. 3. Tableau des purifications de la SuMe dis- tribuees en ordre systematique. Stockholm, 1829. This work enumerates 40 species of Silurian Crustacea previously de- scribed by J. W. Dalman. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 95 The second edition of this work bears the title " Esquisse d'un tableau des purifications de la Suede," Stockholm, 1831. This work contains 4.3 pages and a systematic table of the fossils, in which 46 species of fossil Crustacea are mentioned. Lethsea Svecica, seu petrificata Svecise iconi- bus et characteribus illustrata duobus supplementis. Holmise, 1837-41, 4to, 42 pis. The first part of this work was published in 1835 under the title ' ' Icones petrifica orum Sveciae. Fas. I. Auimalia articulata et mollusca Cephalo- poda." The plates, 1 to 10, were sent by the author only to his friends. In 1837 Lethaea Svecica was published; it contained 124 pages and 39 plates. The first three are marked A, B, C. The fossil Crustacea de- scribed in this work are those of J. W. Dalman's Palaeaderna, with copies of his descriptions and figures. The second supplement, published at Stockholm in 1840, contains 11 pages and 3 plates. Figures and descrip- tions of Calymene clavifrons, Asaphus (Trinucleus) secticornis, A. cyllarus (Trinucleus) and Calymene (Cheirurus) speciosa. " Lethaea Svecica, seu petrificata Sveciae, supplementa secundi continuatio," was published at Stockholm in 1841; it contains 6 pages and 3 plates (60-62). Figures and description of a Calymene. Cytherina phaseolus His., C. balthica His. Calymene blumenbachii Brong. (a) tuberculosa, (b) pulchella, C. bellatula Dalm., C. ornata Dalm., C. poly- toma Dalm., C. actinura Dalm., (7. sclefops Dalm., C.punctata, C. concinna Dalm., C. ? centrinaDalm., C. ? speciosa (Dalm.) His., C. ? pustulata. Asaphus mucronatus Brong., A. caudatus, A.heros Dalm., A. extenua- tus, A. granulatus, A. angustifrons Dalm., A. expansus, A.frontalis Dalm., A . platynotus Dalm., A. Iceviceps Dalm., A. palpebrosus Dalm., A. ? sulzeri. Nileus armadillo Dalm., N. glomerinus Dalm. Illaenus centrotus Dalm., I. centaurus~Dalm., /. crassicauda, I.laticauda. Lichaslaciniatus. Ampyx nasutus Dalm., A . pachyrrhinus Dalm. Olenus tessini, O. bucephalus, O. spinulosus, 0. gibbosus, 0. xcarabceoides . Battus pisiformis, also var. spin- ger Dalm., B. Icevigatus Dalm. Supplement II. Calymene clavifrons Dalm. Asaphus seticornis n. sp., A. cyllarus n. sp. Calymene^. Calymene sclerops 1 Dalm. Hoeninghaus (F. W.) Beschreibung iiber Abbildungen von Calymene arachnoides. Crefeld, 1835, I pi. Ueber die Versteinerungen des Uebergangs- Thonschiefers von Weisenbach im Dillenburgschen. In Isis (oder Encycl. Zeitung), Oken, 1830, p. 96; Neues Jahrbuch fur Mineral., 1831, p. 341. Calymene macrophthalma Brong. 96 CALIFORNIA ACADEMY OF SCIENCES. Trilobites der Geognostischen Sammlung von F. W. Hoeninghaus Geordnet der Systematischen ueber- sicht der Trilobiten von Herrn Professor Dr. Goldfuss. (No place or date.) The author follows Goldfuss' classification placing the species under 30 genera. Harper reflexus. Crefeld, 1847, 1 p., 1 pi. Hoffman (E.) Sammtliche bis jetzt bekannte Trilo- biten Russlands. In Verhandl. russ. k. mineral. Gesell. zu St. Petersburg, 1857-68, p. 21, 7 pis. Lichas verrucosus Eichw., (L. }hybneri Eichw., L. eichwaldi Kaiseiiing, L. sexpunctatns n. sp. Cheirurus zembnitskii Eichw., C. macrophthalmus Kut. Sphcerexochus cranium Kut., S. hemicranium Kut., S. platy cranium Kut., S. enurus Kut., S. aries Eichw., S. coniceps. Zethus bellatulus Dalm., Z. verrucosus Pand., Z. uniplicatus Pand. Amphion fischeri Eichw. En- crinurus punctatus Enini. Bronteus granulatits Goldf . Proetus concinnus Dalm. Phillipsia eichwaldi Fisch., P '. uralica DeVern. Calymene blumen- bachii Brong. Phacops sclerops Dalm., P. macrophthalmus Burni. Cha- mops odini Eichw. Trinucleus. Ampyx nasutus Dalm. Asaphus expansus Linne, A. latus Pand., A. cornutus Pand., A. acuminatus n. sp., A. rotun- difrons n. sp., A, hyarrhinus Leucht, A. centron Leucht, A. tyrannus Murch., A. buchii Brong. Illcenus crassicaudaWahl., I. tauricorntis Kut. Nileus armadillo Dalm. Agnostus plsiformis Linne, A. lentiformis Ang. Lichas lacinatus Wahl. Holl (F.) Handbuch der Petrefactenkuiide, etc. Dres- den, 1841, p. 155. The author gives short descriptfons of the Trilobites described by Alex. Brongniart, J. W. Dalman, E. Eichwald, von Schlotheim, and others. Eurypterus remipes Dekay. Calymene blumenbachii Brong. varieties (a) tuberculata, (b) tuberculosa, (c) pulchella. Calymene variolaris Brong., C. tristani Brong., C. macrophtalma Brong., C. bellatula Dalm., C. poly- toma Dalm., C. sclerops Dalm., C. punctata, C. concinna Dalm., C. sulzeri Schloth., C. hoffii Schloth. Asaphus mucronalus Brong., A. caudatus, A. hausmanni Brong., A. extenuatus Dalm., A. granulatus Wahl., A. angusti- frons Dalm., A. lichtensteinii'Eich-w., A. expansus, A. weissii Eichw., A. buchi Brong., A. dilatatus Brlinn., A. frontalis Dalm., A. gigas Dekay, A. lce.viceps Dalm., A. palpebrosus Dalm. Nileus armadillo Dalm. Illcenus centrotus Dalrn., /. crassicauda, I. lalicauda Wahl., 7. wahlenbergii Eichw., /. rudolphii Eichw. Lichas laciniatus. Ampyx nasutus Dalm. Ogygia guettardi Brong., 0. desmaresfii Brong. Olenus tessini, 0. bucephalns BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 97 Wahl., O. spinulosus, 0. gibbosus, O. scarabasoides, O. fischeri (Asaphus) Eichw. Battus plsiformls Dalm. Trilobite schroeteri, T. sphcerocephalav, T. tentaculatus, T. problematicus, T. bitumnosus. Asaphus velatus, A. pus- tulatas. TriL granum. Cryptonymus panderi. Asaphus brongniarti. Caly- mene clavifrons. Asaphus centaurus. Holl (H. B.) See Jones (T. Rupert) and Holl (H. B.) Hollier (E.) On a specimen of Homalonotus delphi- nocephalus found at Dudley. Trans. Manchester Geol. Soc., vol. 9, 1869, p. 28. Holm (Gerhard.) Anteckningar oin Wahlenberg's Illcenus crassicauda. In Ofversigt af K. Sveuska Vetensk. Akad. Forhandl., vol. 37, 1880, No. 4, p. 3, Stockholm, pi. 5. lllcenus crassicaudu Wahl., /. dalmani Volb. Bemerkungen iiber Illcenus crassicauda Wahl. In Zeitschr. deutsch. geol. Gesell., vol. 32, pt. 2-4, 1880, p. 559, pi. 23. Ueber einige Trilobiteii aus dem Phyllograptus- schiefer Darlekarliens. InBihangtill Kongl. Svenska Vet. Akad. Handl., vol. 6, No. 9, 1882, pi. 5. Pliomera tornquisti. Megalaspis dalecarlicus. Ampyx pater. Agnostus tornquisti. Trilobites brevifrons. Niobe Iceviceps Dalm. D0 Svenska arterna af Trilobitslagtet Illcenus Dalman. In Bihangtill Kongl. Svenska Vet. Akad. Handl., vol. 7, No. 3, 1882, 6 pis. Group I with 10 thorax segments: Ilkenus esmarki Schloth., /. sphcericus n. sp., /. gigas n. sp., /. scrobiculatus n. sp., /. oblongatus Ang., /. fallax n.sp., /. chiron n. sp., I. crassicauda Wahl., /. tuberculatus n. sp. Group II with 9 thorax segments: /. centrotus Dalm., /. linarssoniin. sp. Group III with 8 thorax segments: /. megalophthalmus Linrs., I.par- vulus n. sp., /. lineatus Ang. Eyes wanting: /. leptopleura n. sp., /. angelini n. sp. Subgenus Bumas- tus. Illcenus barriensis March., /. insignia Hall. Om. thoraxledernas antal hos Parodoxides tes- sini Brongn. In Geol. Foreningens, Stockholm, Forhandl., vol^9, 1887, p. 408. Om forekomsten af en Cruziana i ofversta Olenidskiffern vid Knifvinge i Vresta Kloster Socken i Ostergotland. In Geol. Foreningens, Stockholm, Forhandl., vol. 9, 1887, p. 412. 98 CALIFORNIA ACADEMY OF SCIENCES. Om Olenellus fcjerulft Linrs. In Geol. Foreiiiiigens, Stockholm, Forhandl., vol. 9, 1887, p. 493, pis. 14, 15. Die Ostbaltischen. Illaeniden. In Mem. Acad. Imp. Sci., St. Petersburg, 7th series, vol. 33, No. 8, 1886, 12 plates. Group with 10 thorax segments: IlltKiius esmarkii Schloth., /. sphcericus Holm., /. jevensis Holm., 7. laticlavius Eichw., /. chiron Holm., /. inter- medius Holm., /. crassicauda Wahl., /. tauricornls Kut., /. ariensis Holm., /. sulcifrons Holm., /. plautini Holm., /. revaliensis Holm., /. dalmani Volb., /. oculosus Holm., /. chudleighensis Holm., /. sinuatus Holm., /. schmidti Niesk., /. ladogensis Holm., /. oblongatus Ang., /. roemeri Volb., /. angustifrons Holm., I.atavus Eichw., /. masckei Holm. II Group with 9 thorax segments: Illcenus centrotus Dalm., /. linnars- xottz Holm., 1. proles Holm., /. livonicus Holm. III Group with 8 thorax segments: Illcenus triquetrus Volb., /. caecus Holm. (Eyes wanting.) Subgeiius Bamastus. Illcenus barriensis Murch. Honeyman (D.) On new localities of fossiliferous Silurian rocks in eastern Nova Scotia. In Canadian Naturalist, vol. 5, 1860, p. 293. Dr. J. W. Dawson adds a note to this paper, describing Homalonotus daivsoni Hall, fig. 1, with notes on other fossils. On the geology of Arisaig, Nova Scotia, with a note by Prof. T. Rupert Jones. In Quart. Jour. Geol. Soc. London, vol. 26, 1870, p. 490. The note by Prof. T. K. Jones, 011 page 492, 011 some Eiitomostraca from Arizaig, mentions the following genera: Beyrichia tuberculata Klodeii., B. wilkensiana Jones, B. maccoyiana Jones. Primitia concinna Jones. Notes of examination by Prof. James Hall of the Silurian collection of the Provincial Museum, by the Rev. D. Houeyman. In Proc. and Trans. Nova Scotiaii Iiist. Nat. Sci., vol. 7, pt. 1, 1886, p. 14. AsaphuH ditmarsice Honeyman. The Giant Trilobite of Moose River Iron Mine, Nova Scotia. In Proc. and Trans. Nova Scotiaii Iiist. Nat. Sci., vol. 7, pt. 1, 1888, p. 63. In this article Dr. D. Honeyman refers Asaphus ditmarsice to Dr. Jacob Green's Asaphm? crypturus, giving a copy of the original description of that species from Trans. Geol. Soc. Pennsylvania, vol. 1, 1834, p. 37. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 99 How (Henry). Notice of the occurrence of a Trilobite in the Lower Carboniferous limestone of Hants County. In Proc. and Trans. Nova Scotian Inst. Nat. Sci., vol. 1, 1867, pt. 1, p. 87. Phillipsia howi Billings. This species is closely allied to P. meramecensis and P. insignis. Button (F. W.) On a Trilobite from New Reefton, new to Australia. In Proc. Linn. Soc. New South Wales, section 2, vol. 2, 1887-88, p. 257. Homalonotus species not named. Huxley (T. H.) Observations on the structure and affinities of Himantopterus . In Quart. Jour. Geol. Soc, London, vol. 12, 1856, p. 34. Huxley (T. H.) and Salter (J.W.) Monograph of the fossil Crustacea forming the genus Pterygotus, with its anatomy and affinities. In Mem. Geol. Survey United Kingdom. Description of Brit, organic remains. Monograph No. 1. London, 1859, atlas of 16 pis. Pterygotus bilobus Salt., P.peronatus Salt., also \ar.plicatissimus, P. banksii Salt., P. stylops, P. acuminatus Salt. Eurypterus lanceolatus Salt. Pterygotus anglicus Agas., P. ludensis A sp., P. gigas n. sp., P. problem- aticus Agas., P. arcuatus n. sp., P.punctatus n. sp. ami Etheridge (Robert). A catalogue of the collection of fossils in the Museum of Practical Geology, with an explanatory introduction. London, 1865. A catalogue of the Cambrian and Silurian fos- sils in the Museum of Practical Geology. London, 1878. This catalogue was drawn up by Mr. E. T. Newton, under Prof. T. H. Huxley's superintendence. The specimens were named by Mr. Robert Etheridge, palaeontologist to the Geological Survey of Great Britain. Jackson (Charles T.) Nouveau gisernent de Trilobites decouvert dans environs de Boston. In Comptes Rendus Acad. Sci. Paris, vol. 43, 1856, p. 883. Paradoxides tessini Brong., P. harlani Green, P. spinulosus Boeck. Sur un moule du Paradoxides harlani. In Comptes Eendus Acad. Sci. Paris, vol. 46, 1858, p. 254. 100 CALIFORNIA ACADEMY OF SCIENCES. James (J. F.) Catalogue of fossils of Cincinnati group, published by order of the Committee on Palaeon- tology. Cincinnati, 1871. James (U. P.) Palaeontology. Catalogue of Lower Silurian fossils of Cincinnati group, found at Cincinnati and vicinity, etc. Cincinnati, April, 1875. Supplement to Catalogue of Lower Silurian fossils of the Cincinnati group, etc. Cincinnati, July 10,1879. Descriptions of new species of fossils from the Cincinnati group, Ohio and Kentucky. In the Palaeontologist, Cincinnati, No. 7, April 16, 1883. Tracks of Crustacean ( ?), pi. 2, fig. 4. Jenkins (Charles). On the geology of Yaas Plains. (Second paper.) In Proc. Liniiean Soc. N. S. Wales, 1878, plate. Cheirur'usinsignis. Bronleussp.t Homalonotussp.'! Acidaspis brighlii^ Phacops sp.? Johnstrup (Fr.) Oversigt over de palseozoiske Dan- nelser paa Bornholm meddelt paa det lite Skandinaviske Naturforskermede i Kjobenhavn, 1873, p. 299. This work contains important list of the fossils occurring at Bornholm, in the Cambrian and Lower Silurian formations. Jones (T. Rupert). On Permian Entomostraca. In Monograph of Permian Fossils of England (King). Palaeont. Soc. London, vol. 3, 1849-54, p. 58. The author describes and illustrates under the head of Crustacea, p. 54, plate xviii, the following species: Cythere morrisiana Jones, G. geinitziana Jones, C. elongata Miinst., C. kuborgiana Jones, C. (Bairdia) curta McCoy, C. ( Bairdia) gracilis McCoy, C, ( Bairdia) ^acura Jones, C. (Cythereis?) biplicata Jones, C. (Cyther- ella ?) inornata McCoy, (7. (Cytherella ?) nuciformis Jones. Dithyrocaris permiana Jones, D. glypta Jones. In Journal of a Voyage in Baffin's Bay and Barrow Straits in the years 1850-51, etc., 2 vols. Lon- don, 1852. Appendix. Leperditia balthica His. var. arctka n. sp., p. ccxxi, pi. 5, f. 13. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 101 Notes on the Entomostraca. In Quart. Jour. Geol. Soc. London, vol. 9, 1853, p. 160, pi. 7, figs. 5-7. This article forms Appendix D to a paper on the Carboniferous and Silurian formations of the neighborhood of Bussaco, in Portugal, by Senor Carlos Ribeiro, with notes and a description of the animal remains by D. Sharpe, J. W. Salter and T. K. Jones, etc. See same journal, p. 135, pis. 7-9. Beyrichia bussacensis n.sp., B. simplex n. sp. Notes on the Palaeozoic bivalved Entomostraca. No. 1. Some species from the Upper Silurian limestone of Scandinavia. In Annals Mag. Nat. Hist., 2d Series, London, vol. 16, 1855, p. 81, pi. 5. (Jugosae.) 1, Beyrichia buchinana; 2, B. tuberculata Klod., also var. nuda antiquata; 3, B. dalmaniana; 4, B. maccoyiana; 5, B. salteriana. (Corrugatae.) 6, Beyrichia wilckensiana v&T.plicata; 7, B. siliqua. (Simplices.) 8, Beyrichia mundula. Notes on Palaeozoic bivalved Entomostraca. No. 2. Some British and foreign species of Beyrichia. In Annals Mag. Nat. Hist., 2d series, London, vol. 16, 1855, p. 163, pi. 6. Beyrichia complicata Salt., also var. decorata, B. klodeni McCoy, also var. antiquata, var. torosa, B. lata Vanuxem, B. bussacensis Jones, B. ribei- riana n. sp., B. affinis n. sp., B. barrandiana n. sp., B. strangulata Salt, var. (a), var. (b), var. (c), B. bicornis n. sp., B. seminulum n. sp., B. simplex Jones, B. simplex ? var.?, B. mudula Jones. The author gives a table of the Beyrichiae, arranged in three subdi- visions as far as the species described will permit. The Lower Silurian Beyrichiae are arranged under the groups Simplices, Corrugatce, and Ju- gosa; the Upper under Corrugatce, and Simplices. Notes on the Palaeozoic bivalved Entomostraca. No. 3. Some species of Leperditia. In Annals Mag. Nat. Hist., 2d series, London, vol. 17, 1856, p. 81, pis. 6-7. Leperditia balthica His., L. arctica Jones, L. alta Conrad, L. britianica Rouault?, L. gibbera n. sp., L. marginata Keyserl. L. solvensis n. sp. Notes on the Palaeozoic bivalved Entomostraca. No. 4. North American species. In Annals Mag. Nat. Hist., 3d series, London, vol. 1, 1858, p. 241, pis. 9. 10. See also Kogers's Final Kept. Geol. Survey Pennsylvania, 1858, pt. 2, p. 834, figs. 695-699. (From Beechey Island.) — 1, Beyrichia rugulifera; 2, B. sigillata; 3, B. clathrata; 4, B. plagosa. 102 CALIFORNIA ACADEMY OF SCIENCES. (From Canada.) — 1, Beyrichia logani (a) var. reniformis, (b) leper ditioides. 2, Leperditia canadensis, (a) var. labrosa, (b) L. canadensis ?; 3, L. anna. Isochilina, subgenus of Leperditia. 4, L. ( Isoch.) Ottawa; 5, L. ( fsoch.) gracilis. 6, Cytheropsis concinna; 7, C. siliqua; 8, C. rugosa. (From the United States.) — 1, Leperditia alia Conrad; 2, L. gibbera var. scalaris; 3, L. pennsylvanica; 4, L. ovata. 5, Beyrichia maccoyiana Jones; 6, B. pennsylvanica. 7, Leperditia (Isochilina) cylindrica Hall. (Beechey Island, additional.) — Cytheropsis concinna. Additional notes on Palaeozoic Entomostraca from Canada. In Annals Mag. Nat. Hist., 3d series, London, vol. 1, 1858, p. 340. Not descriptive. On the Palaeozoic Entomostraca of Canada. In Geol. Survey Canada, figure and description of Canadian organic remains, decade 3, Montreal, 1858, p. 91, pi. 2; also Annals Mag. Nat. Hist., 3d series, London, vol. 1, 1858, p. 244, pi. 9. Isochilinia n. g. Beyrichia logani Jones. Leperditia canadensis Jo lies var. labrosa, var. L. louckiana, var. pauquettiana,v&T,josephiana, var. anti- costiana, L. anna Jones, L. amygdalina Jones. Isochilina n. subg. Lep- erditia (Isochilina) Ottawa Jones, L. (I.) gracilis Jones. Cytheropsis concinna Jones, C. siliqua Jones, C. rugosa Jones. Description of Entomostraca from the mountain limestone of Berwickshire and Northumberland, by Prof. T. Kupert Jones, F. G. S., etc., with notes on the strata in which they occur, by George Tate, F. G. S., etc. In Proc. Berwickshire Nat. Club, 1864, p. 83. Estheria striata Miinst., also var. tateana Jones. Candona (?) tateana Jones. Beyrichia tatei n. sp. On fossil Estheria and their distribution. In Quart. Jour. Soc. London, vol. 19, 1863, p. 140; also Nat. Hist. Kev., 1863, p. 262. Estheria membranacea Pacht., E. striata Miinst. also var. tateana and beinertiana, E. tenella Jord., E. exigua Eichw., E. portlockii Jones, E. mi- nuta Alberti also var. brodieana, E. mangaliensis Jones, E. ovata Lea, E. kotahensis Jones, E. concentrica Bean, E. murchisonice Jones, E. elliptica Dunker also var. subquadrata, E. forbesii Jones, E. middlendorfli Jones. Leaia leidyi Lea also var. salteriana and williamsoniana. and Kirkby (J. W.) Notes on the Palaeozoic bivalved Entomostraca. No. 5. Miinster's species from the carboniferous limestone. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 103 In Annals Mag. Nat. Hist., 3d series, London, vol. 15, 1865, pi. 20, p. 404. Leperditia okeni Miinster also var. acuta, L. oblonga n. sp., L. parallela u. sp., L. suborbiculata Munster. Cytherella ? inflata Munster. Bairdia elongata Miinster, B. hisingeri Munster, B. subcylindrica'M.iinsteT:. Cythere bilobata Miinster, C. intermedia Munster, C. munsterina n. sp. and Holl (H. B.) Notes on the Palaeozoic bi- valved Entomostraca. No. 6. Some Silurian species (Primitia). In Annals Mag. Nat. Hist., 3d series, London, vol. 15, 1865, p. 414, pi. 13. Primitia n. g., P. strangulata Salter also var. (a), P. salteriana n. sp., P. semicordata n. sp., P. simplex Jones, P. logani Jones also vars. re.nl- formis and leperditioides, P. matutina n. sp., P. seminulum Jones, P. sigil- lata Jones, P. variolata n. sp. also var. paucipunctata, P. rugulifera Jones, P. renulina n. sp., P. mundula Jones, P. anna n. sp., P. bicorni* Jones, P. umbilicata n. sp., P. cristata n. sp., P. tersa n. sp., P. trigonalis n. sp., P. beyrichiana n. sp., P. roemeriana n. sp., P. obsoleta n. sp., P. oblonga n. sp., P. ovata n. sp., P. semicircularis n. sp., P.pusilla n. sp., P. concinna Jones, P. muta n. sp. and Kirkby (J. W.) Notes on Palaeozoic bi- valved Entomostraca. No. 7. Some Carboniferous species. In Annals Mag. Nat. Hist., 3d series, London, vol. 18, 1868, p. 32. The author's ^ive the following list of the species described in McCoy's Synopsis Garb., Foss., Ireland: 1, Entomoconchus scouleri. Daphinia primceva (Cypridina primceva). 3, Bairdia curtus. 4, B. gracilis (B. subcylindrica Miinst.) 5, Cythere amygdalina (Leperditia amygdalina.) 6, C. arcuata (Leperditia okeni Miinst. var. subrecta Portl.) 7, C. bituberculata ( Beyrichia bituberculata). 8, C. costata ( Kirkby a costata). 9, C. cornuta (Leperditia okeni Miinst. var. subrecta). 10, C. elongata. 12, C. excavata are also referred to Le- perditia okeni var. subrecta. 13, C. hibbertii (Beyrichia ?) 14, C. inflata (Entomoconchus ? vel. Cypridella ?) 15, C. inornata (Leperditia okeni). 16, C. orbicularis (Cypridella ?) 17, C. pusilla (Entomoconchus ? vel. Cypri- della ?) 18, C. scutulum (Leperditia okeni). 19, C. oblonga. 20, C. spini- gera ?) 21, C. trituberculata. 22, C. gibberula. 23, C. subrecta are also referred to Leperditia okeni. They comprise the varieties subrecta Portl. and scotoburdigalensi* Hibbert, Kirkbya annectens. - and Holl (H. B.) Notes on Palaeozoic bivalved Entomostraca. No. 8. Some Lower Silurian species from Chair of Kildare, Ireland. In Annals Mag. Nat. Hist., 4th series, London, vol. 2, 1868, p. 54, pi. 7. 104 CALIFORNIA ACADEMY OF SCIENCES. Primitia maccoyii Salter. P. sancti-patricii n. sp. Cythere wrightiana n. sp., C. jukesiana u. sp., C. bailyana n. sp., C. harknessiana n. sp. Bairdia murchisoniana n. sp., B. griffithiana n. sp., B. salteriana n. sp. Cythere aldensis M'Coy. Gytheropsis has been applied to this and other Palaeozoic Entomostraca. and Holl (H. B.) Notes on Palaeozoic bivalved Entomostraca. No. 9. Some Silurian species. In Annals Mag. Nat. Hist., 4th series, London, vol. 3, 1869, p. 211, pis. 14, 15. Thlipsura n. g. Cytherellina n. g. Kirkbyan.g. Moorea n. g. /Ech- mina n. g. Cythere corbuloides n. sp., C. grindrodiana n. sp. Bairdia phillipsiana n. sp. Thlipsura corpulenta n. sp., T. tuberosa n. sp.. T. v-scripta n. sp. Cytherellina siliqua also var. grandis, vars. tersa and ovata. ^Echmina cuspidata n. sp., ^E. clavulus n. sp. Beyrichia intermedia n. sp. Primitia lenticulari n. sp., P. umbilicata J. & H., P. bipunctata Salt., P. excavata n. sp. Kirkbya fibula n.sp. Moorea silurica n. sp., On ancient Water-fleas of the Ostracodous and Phyllopodous tribes (bivalved Entomostraca). In Month. Microsc. Jour., vol. 4, London, 1870, p. 184, pi. 61. Bairdia curta M'Coy. Thlipsura corpulenta J. & H. Cythere jukesiana J. & H. Cytherellina siliqua Jones. dSchmina cuspidata J. & H. Car- bonia agues Jones. Cypridina phillipsiana n. sp. Cypridella koninckiana n. sp. Cyprella subannulata n. sp. Entomoconchus scouleri M'Coy. En- tomis divisa Jones. Primitia renulina J. & H. Kirkbya urei Jones. Moorea silurica J. & H. Leperditia balthica His. Isochilina gracilis Jones. Beyrichia wilckensiana Jones, B. complicata Salt. Leaia leidyi Lea. Estheria membranaceaPacht, E. tenella Jones. Explanation map 32. The geology of the neighborhood of Edinburgh, by H. H. Ho well and A. Geikie; with appendix and list of fossils, by J. W. Salter. In Mem. Geol. Survey Gr.Brit., London, 1861, p. 137, pi. 2, fig. 5. Prof. T. Rupert Jones herein uses the name of Entomis for certain fos- sils. For a full generic description, see Annals Mag. Nat. Hist., 4th series, London, vol. 11, 1873, p. 413. - A monograph of the fossil Estheria. In Palseont. Soc. London, vol. 14, 1862, 134 pp., 5 pis. The following Palaeozoic Estherice and Leaiaz are described in this work. Estheria membranacea Pacht, E. striata Minister also vars. tatea'na, bin' neyana, beinertiana. Leaia leidyi Lea also \ai'S. salteriana, williamsoniana. Estheria tenella Jordon, E. ea%2*aEichw., E. portlockii n. sp. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 105 Note on Estheria niddendorfii. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 73. On some bivalved Entomostraca from the Coal Measures of South Wales. In Geol. Mag., vol. 7, 1870, p. 214, pi. 9. Cytheroid Entomostraca. Carbonia evelince n. sp., O. agues n. sp. var. subrugulosa (a), ruglosa(b). Leaia leidyi. Daphnioid ? Entomostraca. Estheria adamsii n. sp., E. dawsoni n. sp., E. tenella Jones, E. pachtii n. sp. Anthracomya philUpsn Williamson. On the Palaeozoic bivalved Entomostraca. In Proc. Geologist Assoc. 1870.* Note on the Entomostraca from the Cambrian rocks of St. David's. In Quart. Jour. Geol. Soc. London, vol. 28, 1872, p. 183, pi. 5. This paper forms a part of Henry Hick's article on some undescribed fossils from the Menevian Group. Same Jour., p. 173. Leper ditia hicksii Jones. Entomis buprestis Salter. Notes on the Palaeozoic bivalved Entomostraca. No. 10. :, In Annals Mag. Nat. Hist., 4th series, London, vol. 11, 1873, p. 413. Entomidella n. g. Sulcuna n. g. Entomis concentrica DeKon., E. sera- ratostriata Sancfb., E. nitida F. A. Romer, E. fragilis F. A. Romer, E. globulos Riehter, E. gyrata Richter, E. teniata Richter, E. tuberosa Jones, E. impendens Has well, E. biconcentrica Jones, E. aciculata Jones, E. dimi- diata Barr., E. migrans Barr., E. pelagica Barr., E. rara Barr. Entomi- della divisa Jones, E. buprestis Salt. On some bivalved Entomostraca chiefly Cyri- denidae of the Carboniferous formations. In Quart. Jour. Geol. Soc. London, vol. 29, 1873, p. 409. Sulcuna lepus, S. cuniculus. Cyprella chrysalidea DeKon., C. annulata DeKon. Daphina primceva M'Coy is herein referred to Cypridina proper. Ancient Water-fleas, etc. Pt. 2. In Monthly Microsc. Jour., vol. 10, London, 1873, p. 71. Contains notes on the genera, but not descriptive of the species. Notes on some forms of British Entomostraca from the Silurian rocks of Peeblesshire. In Trans. Edinb. Geol. Soc., vol. 2, part 3, 1874, p. 321. 1, Bairdia browniana Jones. 2, Beyrichia impendens Jones. 3, B. pro- tenta n. sp. 4, Entomis aciculata n. sp. 106 CALIFORNIA ACADEMY OF SCIENCES. , Kirkby (J. W.) and Brady (M.P.) Monograph of British fossil bivalve Entomostraca from the Car- boniferous formations. In Palfflont. Soc. London, 1874-1884. The Cypridinadre and their allies, part 1, pp. 1-56, plates 1-5. Cypridina primceva McCoy. 2, C.radiatan. sp. 3, C. wrightiana n. sp. 4, C. bradyana n. sp. 5, (7. brevimentum n. sp. 6, C. grossartiana J. eKon.. IV. England: Homalonotus elongatusSalt., H. champernownei Woodw. . H. goniopyyaeus Woodw. V) Westliches Frankreich: Homalonotus gervillei Vern., H. hausmanni Renault, H. legraverendi~R,ou&nlt. VI. Spanien : Homalonotus pradoanus Vern. VII. Turkei: (Bosporus) Homalonotus gervillei Vern., H. salteri Vern. VIII. Afrika, Cape Colonie: Homalonotus herscheli Murch., H. crassi- cauda Sandb. IX. Nordamerika: Homalonotus dekayi Green, H. vanuxemi Hall. X. Sudamerika: Homalonotus oiara H. & R. Ueber das vorkommen der Gattung Homalo- notus im rheinischen Unterdevon. In Verhandl. Naturhist. Vereins ftir Rheinland und Westfalen, 1880. Homalonotus roemeri DeKon., H. scabrosus n. sp., H. mutabilis. Koenen (A. von). Die Kulm-Fauna von Herborn. In Neues Jahrbuch fiir Mineral., 1879, p. 309, pis. 6, 7. Phillipsia cequalisH. v. Mey., P. latispinosa Sandb. The author places Proetus ? posthumus Richter under Phillipsia cequalis and observes: " As von Meyer expressly says that the glabella is reduced in front there is no doubt that Burmeister was in error in illustrating as this species, a form with a club-shaped glabella:" Ueber die Unterseite der Trilobiten. In Neues Jahb. fiir Mineral., 1880, vol. 1, p. 429, pi. 8, figs. 9, 10. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 127 Ueber Bronteus thysanopeltis Barr. von Wild- ungen. In Neues Jahb. fiir Mineral, 1882, p. 108. In this paper the author refers a Middle Devonic species of Bronteus cited by Waldschmidt under B. thysanopeltis Barr. to B. waldschmidtin. sp. Ueber Clymenienkalk und Mittel devon resp. Hercynkalk? bei Montpellier. In Neues Jahrbuch fiir Mineral., 1886, p. 163. Dechenella escoti n. sp. Phacops cryptophthalmus Emm. Kolmodin (Lars). Bidrag till kannedomern on Severiges Siluriska Ostracoder. In Akad. Afhandling som med tillstand af Tidtberomda Filosotiska Fakultetens i Upsala, etc., 1869, 1 pi. Leper ditia baltica His., L. megalops n. sp., L. nitens n. sp. Beyrichia lunata n. sp., B. clavata n. sp., B, scanensisn. sp., B. verrucosa n. sp., B. bilobata n. sp. Cytheropsis bisulcata n. sp., C. concinna Jones. Ostracoda Silurica Gotlandise enumerat. In Ofversigt kongl. Vet. Akad. Forhandlingar. 1879, No. 9, p. 133, pi. 19. Leperditia schmidti Kolm., L. baltica His., ex parte L. phaseolus His., L. grandis Schm., L. nitens Kolm., L. tuberculata n. sp. Elpe reniformis n. sp. Beyrichia tuberculata Boll., B. klodeni McCoy, B. klodenivsn. anti- quata Jones, B. jonesi Boll., B. buchiana Jones, B. maccoyana Jones, J5. clavata Kohm., B. grandis n. sp. Cytheropsis concinna Jones, C. bisulcata Kolm. Koenig (C. E.) Icones fossilium sectiles. Centuria prima, text, 4 pp., pis. 1-8; Centura seconda, pis. 9-19.; n. d. The common edition of this work has only four pages of text and eight plates (London, 1825, 4to). Calymene decipiens, p. 2, pi. 32 ( Ellipsocephalus hojffi.) Asaphus myops, p. 3. pi. 4, fig. 53. Homalonotusn. g., H. knighti, p. 4, pi. 7, fig. 85. Ag- nostus, pi. 19, figs. 119, 120. Isotelus gigas, pi. 10, fig. 121. Asaphus ex- tenuates, pi. 10, fig. 122, A. crassicauda, pi. 13, fig. 150. Belinurus n. g., B. bellulus, pi. 18, fig. 230. For a description of the genus Belinurus see W. H. Baily's article, Annals Mag. Nat. Hist., 3d series, London, vol. 11, 1863. Koninck (L.-G. de). Memoire sur les Crustaces fossiles de Belgique. In Mem. Acad. Sci. Bruxelles, vol. 14, 1841, 1 pi. Goldius n. g. Cyclus n. g. Goldius flabellifer Goldf. Asaphus gemmu- liferus Phill., A. brongniarti Fischer. Cyclus radialis Phill. Famile des 128 CALIFORNIA ACADEMY OF SCIENCES. Cyproides: Cytherina phillipsiana n. sp. Cypridina edivardsiana n. sp. C. concentrica 11. sp., (7. aunulata n. sp. Cyprella chrysalidea n. sp. Cypridella cruciatan. sp. Description des animaux fossils qui se trouvent dans le terrain carbonif&re de Belgique. Liege, 1842-44. Cythere phillipsiana DeKon. Cypridina edivardsiana DeKon, C. con- centrica DeKon, C. annulata DeKon. Cyprella chrysalidea DeKon. Cy- pridella cruciata DeKon. Cyclus brongniartianus n. sp., C. radialis Phill. Phillipsia brongniarti Fisch, P. globiceps Phill., P. derbyensis Martin, P. gemmulifera Phill., P. pustulata Schloth., P. jonesii Portl. Notice sur quelque fossiles recuellis par G. Dewalque dans le syst£me Gedinien de A. Dumont. In Annales Soc. Geol. Belgique, vol. 3, 1876, p. 25, plate. Recherches sur les fossiles palseozoiques de la Nouvelle-Galles du Sud Australie. In Mem. Soc. Sci. Liege, 2d series, vol. 6, 1876, p. 45. Recherches sur les fossiles palaeozoiques de la Nouvelle-Galles du Sud Australie. In Mem. Sci. Liege, 2d series, vol. 7, 1878. This work was published separately under the above title in two volumes, with an atlas of 24 plates. Bruxelles, 1876-77. Entomis pelagica Ban*. Illcenus wahlenbergi Barr. ? Staurocephalus clarkein.sp. Cheiruris invignis Beyr. Encrinurus punclatus Briinii., E. barrandei n. sp. Cromus bohemicus 1 Barr., C. murchisoni n. sp. Calymene blumenbachii'B'rong. Proetus stokesii'M.u'rch. Lichas sp.? cf. L. palmata. Bronteus partschii Barr., B. goniopeltisii. sp. Harpes ungula Sternb. Fossiles Carboiiiferes : Polycope simplex J. & K. Entomis jonesi n. sp. Phillipsiaseminifera Phill. Griffithides eichwaldi Fischer. Brachymetopus strzeleckii McCoy. Sur une nouvelle espece de crustace du terrain houiller de la Belgique. In Bull. Acad. Sci. Bruxelles, 2d series, vol. 45, 1878, p. 409, 1 pi. Brachypyge carbonis n. sp. The principal part of this article is a letter from Dr. Henry Woodward to L. G. de Koninck. Notice sur le Prestwichia rotundata J. Prestwich decouvert dans le schiste houiller de Horme, pres Moris. In Bull. Acad. Sci. Bruxelles, 3d series, vol. 1, 1881. p. 91, 1 pi. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 129 Krotow (P.) Geologische Forschuiigen am Westlichen Uralabhange in dem Gebieten von Tscherdyn und Ssolikamsk. Zweite Liefenmg. In Mem. Comite geol. St. Petersburg, vol. 6, 1888, plate 2, p. 329. Bronteus granulatus Goldf. Leperditia n. sp. Isochilina n. sp. Krause (A.) Die Fauna der sogen. Beyrichien oder Choneten-Kalke des norddeutschen Diluviums. In Zeitschr. Deutsch. geol. Gesell., vol. 29, Berlin, 1877, p. 1, 1 pi. Calymene blumenbachii Brong. Phacops downingiceM.nrch. Proetuscon- cinus Dalm. Leperditia angelini Schm. Beyrichia tuberculata Boll., B. buchiana Jones, B. kochii Boll., B. maccoyana Jones, B. salteriana Jones, B. wilckensiana Jones. Cytherellina siliqua Jones. Primitia oblonga J. & H., P. obsoleta J. & H., P. ovata J. & H., P . semicircular is J. & H., P. romeriana J. & H., P. beyrichiana J. & H., P. minuta n. sp., P. mundula Jones. Ueber Beyrichien und verwandte Ostracoden in untersilurischen Geschieben. In Zeitschr. Deutsch. Gesell., vol. 41, 1889, plates 1 and 2. Primitia simplex J. & H., P. plana n. sp., P. sulcata n. sp., P. distant n. sp., P. cincta n. sp., P.jonesii n. sp., P. bursa n. sp., P. schmidtii n. sp., P. schmidtii var. P. intermedia n. sp. Entomis sigma n. sp., E. sigma var. Bollia, v-scripta n. sp., B. granulosa n. sp. Strepula lineata n. sp., S. linnarssoni n. sp. Beyrichia erratica n. sp., B. marchica n. sp., B. digitata n. sp., B. palmata n. sp. Klcedenia? globosa n. sp. Ueber Beyrichien und verwandte Schalenkrebse in markischen Silurgesehieben. In Gesell. naturforschender Freunde No. 1, 1889, p. 11. Beitrag zur Kenntniss der Ostrakoden-Fauna in silurischen Diluvia geschieben. In Zeitchr. Deutsch. geol. Gesell, vol, 43, 1891, p. 488, plates 29-33. Leperditia eichwaldi Schm.. L. hisingeri Schm., L. (Isochilina?) aff. ••on&perta Kiesow. Isochilina? erratica n. sp. Aparchites simplex Jones, A. ovatus J. & H., A. obsoletus J. & H., A. oblongus J. & H. Primitia jonesii Krause, P.maccoyii J. & H., P. elongata n.sp., P. mundula Jones, P. cristata J. & H., P. reticristata Jones, P. beyrichia Jones, P.! striata n. sp. Bollia semicircularis n. sp., B. rotundata n. sp., B.lsmuatan. sp. *t,--pula limbata n. sp., S. simplex n. sp., S. cf. costata Linrs. Beyrichia marchica Krause, B. erratica Krause, var. acuta n. v., B. digitata Krause, B. nodulosa Boll., B. spinigera Boll., B. damesiin. sp., B. scanensis Kolm., B. reuteri n. sp., B. steusloffi n. sp., B. hieroglyphica n. sp. Klcedenia 9 130 CALIFORNIA ACADEMY OF SCIENCES. kiesowi n. sp. Octinaria elliptica n. sp. Thlipsura tetragona 11. sp., T. simplex n. sp., T. per sonata n. sp. Entomis sigma Krause, var. ornata n. v. Bythocypris semicircularis J. & H., 5. cornuta n. sp., B . phillipsiana J. & H., 5. AoZft Jones, 5. symmetrica Jones, #. aff. reniformis Jones. Pontocypris mawii Jones. Xestoleberis ? aff. ivrightii Jones. Bursulella ? rostrata n. sp. Die Ostrakoden der silurischen Diluvial- geschiebe. Berlin, 1891. Leper ditia baltica His., L. phaseolus His., also var. (a) ornata Eichw. and var. (b) subpentagona Kiesow, L. gregaria Kiesow, L. eichioaldi&clim., L. hisingeri Schm., L. conspersa Kiesow, L.giganteaF. Romer. Isochilina? erratica n. sp. Aparchites simplex Jones, A. ovata J. & H., A.? obsoleta J. &H., A.? oblonga J. & H. Primita plana Krause, P. sulcana Krause, P. distans Krause, P. cincta Krause, P. jonesii Krause, P. bursa Krause, P. schmidti Krause, P. intermedia Krause, P. maccoyi J. & H., P. elongata 11. sp., P. mundula Jones, P. cristata J. Hlanuts centrotus Dalm. Ampyx nasutus Dalm. Agnostics pisiformi* Liiiue, A. gibbus Linrs., A. fallax Linrs., A. Icevigatus Dalm., A. recticu- ffifus Ang. Leperditia primordialis Linrs. Beyrichiaangelini~Barr. The author illustrates Harpes excavatus n. sp., Ellipsocephalus muticus Ant,'., Leptoplastus stenot us Ang. and Beyrichia angelini Barr. On the Brachiopotfa of the Paradoxides beds of Sweden. In Kongl. Svenska Vetenskaps Akad. Band 3, No. 12, 1876. Linnarsson divides the Swedish Paradoxides beds into six divisions as follows:* 6 Strata with 'Agnostus Icevigatus ."> Strata with Paradoxides forchhammeri. 4 Strata with Paradoxides olandicus. 3 Strata with Paradoxides davidis. '2 Strata with Paradoxides tessini. 1 Strata with Paradoxides kjerulfi (Olenellus zone). The strata containing Agnostus Icevigatus is wanting in the Island of Oland, and the beds containing Paradoxides forchhammeri are immediately overlain by the Olenus beds. Trilobiter fron Vestefgotlands Andrarum kalk. In Geol. Poreningens Stockholm Forhandl., vol. 2, 1875, p. 491. Paradoxides forchhammeri Ang. Arionellus difformis Ang., A. aculeatus Aui». Liostracus microphthalmus Ang. Conocoryphe (Soleno pleura) brachy- metopa Ang. Dolichometopus specicus Ang. Agnostus sp.? Trilobites "nit/ma Linrs. En egendomlig Trilobitfauna fron Jemtland. In Geol. Foreningens Stockholm Forhandl., vol. 2, No. 12, 1875, p. 491, pi. 22, figs. 1-5. ])icellocephalus billingsi n. sp. Triarthrus jemtlandicus n. sp. Remo- j^iiu-ides microphthalmus n. sp. Bohemilla (?) denticulata n. sp. Tvo iiya Trilobiter fron Skones alumskiffer. In Geol. Foreningens Stockholm Forhandl., vol. 2, No. 12, 1875, p. 498. L;ostracus(?) superstes n. sp. Cyclognathus n. g., C. micropygus n. sp. Oin faunan i lagren med Paradoxides olandicus. In Sveriges Geologiska Undersokuing, ser. C, No. 22, 1877, 2 pis. Paradoxides olandicus Sjogren, P. sjogreni n. sp., P. aculeatus n. sp. ? Ellipsocephalu* polylomus n. sp.? Conocoryphe emarginata n. sp. Soleno- pleura cristata n. sp. Agnostus fallax Linrs., A. regius Sjogr., A. gibbus Linrs. 138 CALIFORNIA ACADEMY OF SCIENCES. - On the Trilobites of the Shineton shales. In Geol. Mag., new series, decade 2, vol. 5, 1878, p. 188. The author makes the following remarks on Calla way's paper, Quart. Jour. Geol. Soc., vol. 33. p. 652: "1 do not think that Conocoryphe monile is nearly related to such species as C. striata. By the strongly lobed glabella and the dotted marginal furrow it approaches to Euloma." Conophrys can hardly be separated from the Shumardia of Billings. As to Lichapyge, it cannot have any affinity to Paradoxides and hardly to Lichas, it is most nearly allied to Remopleurides; the subgeiius Platy- peltis to Niobe. Om faunan i kalken med Conocoryphe exsulan*. In Sveriges Geologiska Undersdkning, series C, No. 35, 1879, 3 pis. Paradoxides tessini Brong., P. hicksii Salt. var. palpebrosus. Liostracux aculeatus Ang., L. linnarssoni n. sp. Solenopleura parva n. sp. Cono- coryphe exsulans n. sp., C. tenuicincta n. sp., C. dalmani Ang., C. impressa n. sp. Agnostus gibbus Liiirs., A . fallax Linrs., A. fissus Lundgren MS. Om forsteningarne i de Svenska lagreii med Peltura och Sphcerophthalmus . In Geol. Foreningens Stockholm Forhaudl., vol. 5, 1880, No. 4; Sveriges Geologiska Undersokning, Ser. C, No. 43, 1880. Ctenopyge n. g. Peltura scarabceoides Wahl. Sphwrophthalmus alatux Boeck., S. majusculus n. sp., S.jftagellifer Ang. Ctenopyge pecten Salt., C. concava n. sp., C. teretifrons Aug., C. bisulcata Phill., C. sp.? Agnostus trisectus Salt. Promemoria lemnad af A. G. Nathorst forresa po Oland. In Geol. Foreningens Stockholm Forhandl., vol. 5, No. 13, 1881. De undre Paradoxides lagren vid Andrarum. In Sveriges Geologiska Undersokning, Ser. C, No. 54, 1883, 4 pis. Paradoxides tessini Brong.,, P. davidis Salt., P. hicksii Salt., P. brachy- rhachis n. sp., P. sp. ? Olenelltis kjerulfi Linrs. Ellipsocephalus norden- xkioldi n. sp. Arionellus primcevus Brogger. Liostracus aculeatus Ang., L. linnarssoni Brogger. Solenopleura parva Linrs. Conocoryphe exsulan Linrs., C. tenuicincta Linrs., C. cequalis n. sp., C. dalmani Ang., C. im- pressa Linrs. Harpides breviceps Ang. Microdiscus scanicus n. sp., M. eucentrus n. sp. Agnostus atavus Tullb., A. gibbus Linrs., A.fissm Lundg. MS., A. intermedius Tullb., A. punctuosus Ang., A. incertus Brogger, A. elegans Tullb., A, lundgreni Tullb., A. cicer Tullb., A. nudus Beyr. var. scamcus Tullb., A. fallax Linrs., A. parvifrons~Linrs., A. pusillus Tullb., A. rex Barr. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 139 Linn6 (C.) Olandska och Gotlandska resa. Stock- holm och Upsal, 1745. On p. 147, tinder the name of Entomolithus paradoxus, there is in this work a rough woodcut of the pygidium of Asaphus expansus Linne. Wastgota resa forratad or 1746. Stockholm, 1747. On p. 88 of this work there are some rough woodcuts of Trilobites, probably an Olenus and the head of a Paradoxides. r Museum Tessiiiianum. Holmise, 1753, p. 123, pi. 3. Entomolithus, 'pi. 3, fig. 2 (Calymene tuberculatus); E. paradoxus, pi. 3, fig. 1 (Paradoxides tessini.) An excellent figure of Paradoxides tessini Linne is given by Dr. Lind- strom in his revised edition of Angelin's Pal. Scand., plate 1. The Paradoxides tessini figured by Wahlenberg is therein referred to P. tessini var. wahlenbergii. Skanska resa. Stockholm, 1757, p. 121. The author remarks that the slates at Andrarum contain two species so common and numerous that the whole slate seems to be composed of them. He cites Bromell's figures: ( Peltur ft, scarabceoides, Olenus truncatus and Agnostus pisiformis of other authors). Petrificatet Entomolithus paradoxus beskrifed. In Acta Eegiae Acad. Sci. Holmiens, vol. 21, 1759, p. 19, pi. 1, figs. 1-4. Entomolithus paradoxus, pi. 1, fig. 1 (Olenus spinulosus); Entom. para- doxus ft cantharidum, pi. 1, fig. 4, head (Olenus gibbosus); Entom. No. 3, pi. 1, fig. 3 (Calymene blumenbachii; Entom. No. 2, pi. 1, fig. 2 (Encrinttrus punctatus). Systema naturae. Ed. 12. Vol. 3. Holmise, 1768, p. 161. Entomolithus paradoxus # expansus (Asaphus expansus Linne), E. para- doxus /? cantharidum (Olenus gibbosus Wahl.), E. paradoxus ^ pisiformis (Agnostus pisiformis Linne). Locke (John). On Isotelus maximus, found near Trebers, in Adams County, Ohio. In Second Ann. Kept. Geol. Survey Ohio (W. W. Mather), 1838, p. 247, fig. 8. On a new species of Trilobite of very large size. 140 CALIFORNIA ACADEMY OF SCIENCES. In Trans. Assoc. Am. Geol. and Naturalists, vol. 1, 1843, p. 221, plate. Isotelus megistos n. sp. Dr. John Locke has herein given a new name to the species which he called Isotelus maximusin the Second Ohio Keport. See, also, Am. Jour. Sci., 1st series, vol. 42, 1843, p. 366, 1 pi. Notice of a new Trilobite. In Am. Jour. Sci., 1st series, vol. 44, 1843, p. 346. Ceraurus crosotus n. sp. Supplementary notice of the Ceraurus crosotus Locke. In Am. Jour. Sci., 1st series, vol. 45, 1843, p. 223. Logan (W. E.) Bronteus ? canadensis. In Kep. Geol. Survey Canada, 1844, p. 54, 2 figs. On the tracks of an animal lately found in the Potsdam sandstone. In Canadian Naturalist, vol. 5, 1860, p. 279. Lessen (K. A.) Ueber Gryphceus rotundifrons aus dem zorger Schiefer des siidlichen Unterharzes. In Zeitschr. Deutsch. Gesell., vol. 31, 1879, p. 215. Love'n (S. L.) Svenska Trilobiter. In Ofversigt Kongl. Svenska Vet.-Akad. Forhandl., 1845, p. 62. Calymene clavifrons Dalm., C. ornata Dalm. Svenska Trilobiter. In Ofversigt Kongl. Svenska Vet.-Akad. Forhandl., 1845, pp. 46 and 104, pis. 1, 2. Cybele 11. g. Ceraurus crenatus Emm. Proetus (Calymene) concinnus Dalm., P. (Asaphus) stokesii Murch., P. (Calymene) elegantulus Ang. Trilobites (Calymene) verrucosus Dalm. Metopias (Ampyx ?) pachyrrhinus Dalm. Lichas (Entomostr.) laciniatus Wahl., L. cicatricosus n. sp. Trinucleus (Asaphus) seticornis His.. T. (Entomostr.) granulatus Wahl. Cybele bellatula Dalm., C. (Calymene) verrucosa Dalm., C. (Trilobites) velata Schloth. The author refers species of genus Odontopleura Emm. to Dr. Green's genus Ceraurus. Lundgren ( B . ) Om den vid Ramsoca och Of vedskloster i Skane forekommande sandstenens alder. In Acta Univ. Lundensis, Ars-skrift for or 1874, vol. 10. Beyrichia salteriana Jones, B. buchiana Jones. Leper ditia angelini Schmidt. Cytheropsis concinna Jones. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 141 Lyttelton (Charles.) A letter from the Kev. Charles Lyttelton, read Dec. 20th, 1750. In Philos. Trans. Eoyal Soc. London, vol. 46, No. 296, 1750, p. 598, pi. 1, figs. 3-12. pi. 2. (Calymene blumenbachii.) MacLeay (W. S.) Observations on Trilobites, founded on a comparison of their structure and that of living Crustacea. In Murchison's "Silurian system," London, 1839, p. 666; Annals Mag. Nat. His^., 1st series, London, vol. 4, 1839, p. 16. The author compares them with Apus and other Aspidophora, animals which, in his opinion, of all the Entomostraca, appear to come nearest to the Trilobita. Mantell (G.) Medals of creation, or first lessons in geology and the study of organic remains. 2 vols. London, 1854. The author gives figures of Illcenus perovalis Murch. Trinucleus lloydii- Calymene blumenbachii. Homalonotus delphinocephalus. Phacops cauda- tus. Paradoxides bohemicus. Limulus rotandatus, L. trilobitoides. Marcou (Jules). On the Primordial fauna and the Taconic system, by Joachim Barrande; with additional notes by Jules Marcou. In Proc. Boston Soc. Nat. Hist., vol. 7, 1861, p. 369. The author remarks that "it is evident from the new specimen of Ellip- tocephalus asaphoides from the shales of Washington county, N. Y., figured in Emmqn's American Geol., pi. 1, fig. 18, that this trilobite is a Paradox- ides related to the group of P. spinosus, perhaps identical with the P. harlani of Braintree. Besides, the trilobite figured pi. 1, fig. 16, and called Atops trilinealus, is a true Sao, which genus is the most character- istip of the primordial fauna of Bohemia and Scandinavia." Notice sur les gisements des lentilles trilobiti- feres taconique de la Pointe Levis on Canada. In Bull. Soc. Geol. France, 2d series, vol. 21, 1864, p. 236. Mart (J. E.) On some well-defined life zones in the lower part of the Silurian (Sedgwick) of the Lake District. In Quart. Jour. Geol. Soc. London, vol. 34, 1878, p. 871. Phacops (Chasmops) macroura Sjogren, P. (Odontochile) mucronatus Brong. (Phacops appendiculatus Salt.) Phacops sp.?, P. (Odontochile) obtusicaudalus Salt. 142 CALIFORNIA ACADEMY OF SCIENCES. and Nicholson (H. A.) The Stockdale shales. In Quart. Jour. Geol. Soc. London, vol. 44, 1888, p. 654, pi. 16. Phacops elegans var. glaber n. var., P. ( Dalmanites) micronatus Brong. Cheirurus bimncronatus Murch. var. acanthoides n. var., C. ( Pseudosph. scouleri n. sp., Z). tenuistriatus McCoy. Entomoconchus scouleri McCoy. The genera Bairdia and Entomoconchus. Aslacus? phillipsi, an undeter- minable figure of a crustacean probably not an Astacus but probably Eu- tomostracan. The localities of these fossils was not published in the Synopsis and did not appear until 1861. See The Dublin Quart. Jour. Science, No. 1, Jan., 1861, p. 20. This work was reissued in 1860 by Sir Kichard Griffith with a new title page and an Appendix of the Localities of the Irish Carboniferous Lime- stone Fossils, pp. 209-271, which was not given in the first edition. A synopsis of the Silurian fossils of Ireland, collected from the several districts by Richard Griffith, Ff. G. S. The whole being named, and the new species drawn and described, by Frederick McCoy. Dublin, 1846, 5 pis. Forbesia n. g. Portlockia n. g. Trinodus n. g. Tiresias n. g. Bey- richia n. g. A notice of the new genera described by Frederick McCoy is given in the Ray Society's edition of Burmeister's "Organization of Trilobites. Supplementary appendix," p. 123. The generic name Tiresias was used in 1845 for a genus of the Cole- optera, and that of Forbesia for one of the Polypi in 1845. Trinodus was used in 1846 for a genus of the Coleoptera. Tiresias insculptus n. sp. Remopleurides colbii Portl., ./?. dorsospinifer Portl., S. laterspinifer Portl., R. platyceps n. sp. Cheirurus (a) bimucro- natus Murch., C. brevimucronatus Miinst., (7. gelasinosus Portl. Sphcerex- ochus (b) clavus n. sp. Acidaspis bispinosus n. sp. Encrinurus (b) multi- segmentatus Portl., E. stokesii n. sp. Calymene arenosa n. sp., C. blumen- bafhii, (b) pulchella Dalm., (7. brevicapitata Portl., C. forcipata (Lichas laxatus (McCoy) Linrs.), (7. variolaris Murch. (Brong. pars.) Forbesia lati- frons n. sp. Phacops brongniarti Portl., B. dalmani Portl., P. jamesii Portl., P. murchisonii Portl., P. truncato-caudatus Portl. Portlockia sub- Icevis n. sp. Lichas hibernica Portl., L. laxata n. sp., L. pumila. Brontes hibernicus Portl., B. signatus Phill. Ogygia murchisonice Murch. Asaphus buchii Brong., A.latifronsPoTtl., A. marginatus Portl. Homalonotusophiocephalu* 148 CALIFORNIA ACADEMY OF SCIENCES. n. sp. Isotelus gigas Dekay, /. powisii Murch. ? var. /. rectifrons Portl. lllcenus centrotus Dalm., /. perovalis Murch. Otarion obtusum n. sp. Harpes fanagani Portl., H.? megalops n. sp. Trinucleus caractaci Murch., T. elongatus Portl., T. Jimbriatus Murch., T. radiatus Murch., T. seticornis His. Ampyx nasutus Dalm., A. rostratus Sars. Trinodus agnostiformisn. sp. Beyrichia klb'deni n. sp., B. tuberculatus Kloden, B. latus. Cythere phaseolus His. (Primitia maccoyi Salt.) On the fossil botany and zoology of the rocks associated with the coal of Australia. In Annals Mag. Nat. Hist., 1st series, London, vol. 20, 1847, p. 226, pi. Brachymetopus n. g. The author establishes the genus Brachymetopus to contain Phillipsia ? discors McCoy, P. maccoyi Portl. and Brachymetopus strzeleckii described and figured in this article. On the classification of some British fossil Crustacea, with notices of new forms in the University collection at Cambridge. In Annals Mag. Nat. Hist., 2d series, London, vol. 4, 1849. Chasmops n. g. Barrdndia n. g. Ceratiocaris n. g. Cytheropsis n. g. Harpidella n. g. Asaphinse: 1, Phacops. 2, Calymene. 3, Trimerocephalus n. g. 4, Asaphus (subgeuera Isoletus, Basilicus). 5, Illcenus (subgenera Illcenus, Bumastus, Dysplanus). 6, forbesia. 7, Phillipsia. Paradoxinas : 1, Paradoxides (subgenus Olenus). 2, Ceraurus. 3, Cryphceus. 4, Sphcerexochus. 5, Acidaspis. 6, Staurocephaius. 7, Remo- pleurides. 8, Zethus. Ogyginas: 1, Trinucleus (subgenus Tetrapsellium ) . 2, Tretaspis 11. g. 3, Ampyx. 4, Ogygia. 5, Bronteus. 6, Lichas (subgenera Trochurus, Acanthopyge). Harpedinte: 1, Harpes. 2, Harpidella n. g. 3, Amphion. Agnostinse: 1, Trinodus. 2, Agnostus. Subgen. Diplorhima. Partly republished in the author's "Contributions to British Palaeon- tology, etc., London, 1854. Pterygotus leptodactylus McCoy (subg. Leptocheles for P. anglicus). Daph- nia ? primceva. Chasmops odini Eichw. Trimerocephalus Icevis Miiiist. Jllcenus latus McCoy. Isotelus affinis McCoy. Griffithides meso-tuberculatus McCoy. Cryphceus sedgwickii McCoy. Ceraurus octo-lobatus McCoy, C. williamsii McCoy. Ogyyia radians McCoy. Barrandia cordai McCoy. Ampyx latus McCoy . Tretaspis gibbifrons McCoy. Harpidella megalops McCoy. Ceratocaris solenoides McCoy, C. ellipticusM.GCoy. Cytheropsis. On some new Cambro-Silurian fossils. In Annals and Mag. of Natural History for Nov. 1851. Cytheropsis aldensis McCoy. H arpes parvulus McCoy. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 149 On the supposed fish remains figured on plate 4 of " The Silurian System." In Quart. Jour. Geol. Soc. London, vol. 9, 1853, p. 13. The author divides the genus Pterygotus into two subgenera: 1, Ptery- gotus proper, in which the didactyle claws are very thick and armed with powerful teeth. 2, Leptocheles McCoy, in which the pincers are very slender and unarmed. He refers Onch-as murchisoni to Leptocheles murch- isoni. A synppsis of the classification of the British Palaeozoic rocks, by Adam Sedgwick; with a systematic description of the British Palaeozoic fossils in the Geo- logical Museum of Cambridge, by Frederick McCoy, with figures of the new and imperfectly known species. London and Cambridge, 1855, 25 pis. Pt. 2, Palaeon- tology. This work was published in three parts. Fasciculus 1. Kadiata and Articulata. London, 1851. Beyrichia klodeni McCoy, B. complicata Salt., B. strangulata Salt. Ceratiocaris ellipticus McCoy, C. inornatus n. sp., C. solenoides McCoy, C. ? umbonatusS<. Trinodus agnostiformis McCoy, T. tardus ? Barr. Diplor- hina triplicata H. & C. Harpidella megalopsM.cGoy. Trinucleus caractaci Murch., T. gibbifrons McCoy, T. latus Portl., T. ? radiatus Murch., Tre- taspis fimbriatus Murch., T. seticornis His. T. latus McCoy. Ampyx nudus Murch. Ogygia buchi Brong, 0. radians McCoy. Barrandia cordia McCoy. Lichas propinqua? Barr. Acanthopyge angilica Beyr. Trochurus nodulosus Salt. Acidaspis brightii Murch. Staurocephalus murchisoni Barr. Cerauru* clavifrons Dalm., C. octolobatus McCoy, C. loilliamsii McCoy. Eccoptochile sedgvncki McCoy. Zethus atractopyge McCoy, Z. sexcostatus Salt., Z. variolaris'Srong. Harpes parvulus, pis. 1, 2. Encrivurus punctatus Briinn. Phacops alifrons Salt., P. downingice Murch. Odontochile caudata Briinn, O. longicaudata Murch., 0. obtusi-caudata Salt., O. truncata-caudata Portl. Portloclcia ? apiculata Salt., P. stokesii M. Edw. Chasmops odini / Eichw. Calymene baylei Barr., C. blumenbachii Brong., C. brevicapitata Portl., C. sub-diademiata McCoy, C. parvifrons Salt., C'. tuberculosa Salt. Homalon- otus bisulcatus Salt., H. knightii Konig., H. rudis Salt. Isotelus affinis McCoy, /. ( Basilicus ?) laticostatus Green, /. ( Basilicus) powisii Murch., /. (Basilicus) tyrannus Murch. Illanus davisii Salt., /. latus McCoy, /. rosenbergi Eichw. Dysplanus centrotus Dalm. Forbesia latifrons McCoy, F. stokesii Murch. Eurypterus cephalaspis Salt. Pterygotus lepto-dactylus McCoy. Portlockia granulata Miinst., P. latifrons Bronn. Trimeroceph- alus loBvis Miinst. Bronteus alutaceus Goldf. Dithyrocaris scouleri and D. later alis n. sp. Grijfithides meso-tuberculatus McCoy. Phillipsia gem- mulifera Phill., P.jonesii Portl., P. wminifera Phill. 150 'CALIFORNIA ACADEMY OP SCIENCES. For the species of Crustacea described in this volume, Appendix A, see Salter (J.W.), British Palaeozoic fossils in the Geol. Mus. Univ. of Cam- bridge, 1852. Contributions to British palaeontology, or first description of 360 species and several genera of fossil Radiata, Articulata, Mollusca and Pisces from the Ter- tiary, Cretaceous, Oolitic and Palaeozoic strata of great Britain. Republished from the Annals Mag. Nat. Hist. Cambridge, 1854. For a list of the genera of fossil Crustacea, see entries under McCoy (Frederick), Annals Mag. Nat. Hist., 2d series, London, vol. 4, 1849; also Annals for November, 1851. Geological Survey of Victoria. Prodromus of the palaeontology of Victoria, or figures and descriptions of Victorian organic remains, decade 3. Melbourne and London, 1875, pis. 22, 23. Phacops (Odontochile) caudatus, P. (Portlockia) fecundus. forbesia euryseps McCoy. Lichas australis McCoy. Homalonotus Aarmom McCoy. Meek (F. B.) Note on Belinurus dance, from the Illinois Coal Measures. In Am. Jour. Sci., 2d series, vol. 43, 1867, p. 257; Geol. Survey Illinois, vol. 2, p. 395. Note 011 a new genus of fossil Crustacea. In Am. Jour. Sci., 2d series, vol. 43, 1867, p. 394; Geol. Survey Illinois, vol. 3, p. 547. Euproops 11. g., E. dance n. sp. Descriptions of fossils collected by the U. S. Geological Survey, under charge of Clarence King. In Proc. Acad. Nat. Sci. Phila., 1870, p. 56. Eepublished and illustrated in Eep. U. S. Geol. Expl., 40th Parallel, vol. 4, pt. 1, pp. 1-197, pis. 1-17. Conocoryphe ( Ptychoparia) kingii Meek. Paradoxides ? nevadensis Meek. Descriptions of new species of invertebrate fossils from the Carboniferous and Devonian rocks of Ohio. In Proc. Acad. Nat. Sci. Phila., 1871, p. 57. Kepublished and figured in Paleontology of Ohio, vol. 1, 1873, p. 233, 23 pis. Proetus planimarginatus n. sp. Dalmanites ohioensis n. sp. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 151 Descriptions of new Western Palaeozoic fossils, mainly from the Cincinnati group of the Lower Silurian series of Ohio. In Proc. Acad. Nat. Sci. Phila., for 1871, p. 308, Phila., 1872. Red escribed and illustrated in Palaeontology of Ohio, vol. 2, 1875. Solenocaris n. subgen. (Not Solenocaris Young, 1868.) Cythere cincm- natiensis n. sp. Ceratiocaris (Colpocaris n. subgen.) bradleyi n. sp., C, (Colpocarls) elytroides n. sp., C. (Solenocaris n. subgen.) strigata n. sp. Archceocaris n. g., A. vermiformis n. sp. List of Carboniferous fossils from West Vir- ginia, with descriptions of new species. In Appendix B, Kep. of Eegents of West Virginia Univ., 1870, Wheel- ing, 1871, p. 68. Phillipsia stevensoni n. sp. Final report of the U. S. Geological Survey of Nebraska and portions of the adjacent Territories, by F. V. Hayden, etc. Report on the paleontology of eastern Nebraska, with some remarks on the Carbonif- erous rock of that district by F. B. Meek. Washington, 1871, p. 83, 11 pis. (Two editions; first in 8vo, second in 4to.) Cythere nebrascensis Geinitz, C. sp. ? Phillipsia sp. ?, P. scitula M. & W., P. major Shurnard. Description of a new species of fossils from Cincinnati group, Ohio. In Am. Jour. Sci, 3d series, vol. 3, 1873, p. 423. Dalmanites car ley i n. sp. Proetus spurlocki n. sp. Preliminary palaeontology report, consisting of list and descriptions of fossils, with remarks on the age of the rocks in which they are found, etc. In Sixth Ann. Rep. U. S. Geol. Survey Territories, embracing portions of Montana, Idaho, Wyoming and Utah, etc. F. V. Hayden, Washington, 1873, p. 431. Agnoslus maladensis n. sp. Bathyurus sfrratus n. sp. Asaphm ( Me- galaspis? ) goniocercus n. sp. Bathyurust haydeni n. sp. Bathyuriscus n. g., B. (Asaphiscus) bradleyi n. sp. Asaphiscus n. g. Conocoryphe ( Pty~ choparia) gallatensis n. sp. Asaphiscus wheeleri n. sp. Bathyurus saffordi Billings. Bathyurellus ( Dikelocephalus? ) truncatus n. sp. This species is given in the list of fossils collected, but not described in the report. Bathyurus serratus is also referred to Corynexochus serratus. 152 CALIFORNIA ACADEMY OP SCIENCES. Report of the Geological Survey of Ohio. Vol. 1. Geology and palaeontology. Pt. 2. Palaeontol- ogy. Descriptions of invertebrate fossils of the Silurian and Devonian systems, by F. B. Meek. Columbus, 1873, pp. 1-243, pis. 1-23. Cythere cincinnatiensis Meek. Asaphus (Isotelus) meyistos Locke? Proetus spurlocki Meek. Ceraurus Icarus Billings. Acidaspis crosotus Locke? A. cincinnatiensis n. sp. A. ceralepta Anthony. Dalmanites carleyi Meek. Calymene senaria Conrad. Leper ditia alta Conrad. Illcenus ( Bumustus) insignia Hall. Proetus planimarginatus Meek. Dalmanites ohioensis Meek. Descriptions of Olenus (Olenellus) gilberti and Olenus (Olenellus) howelli. In Kep. Geog. and Geol. Expl. Surveys West 100th Mer., vol. 3, Wash- ington, 1875, p. 182. A report on some of the invertebrate fossils of the Waverly group and Coal Measures of Ohio. In Kep. Geol. Survey Ohio. Vol. 2. Geology and Palaeontology. Pt. 2. 1875, pp. 269-347, pis. 10-20. Ceratiocaris ( Colpocaris ) bradleyiMeek, C. (Colpocaris) elytroides Meek., C. (Solenocaris) strigata Meek. Archceocaris vermiformis Meek. Phil- lipsia ( Griffithidesl ) lodiensis n. sp., also Proetus (Ph&ton) lodiensis. Palaeontology. In U. S. Geol. Expl. 40th Parallel, vol. 4, pt. 1, 1877, pp. 1-197, pis. 1-17. Conocoryphe ( Ptychoparia) kingii Meek. Paradoxides nevadensis Meek. The author suggests the new generic name of Olenoides for this species. - and Hayden (F. V.) Descriptions of new Lower Silurian, Jurassic, Cretaceous, and Tertiary fossils collected in Nebraska by the exploring expedition under the command of Capt. W. F. Reynolds, U. S. Top. Eng., with remarks on the rocks from which they were obtained . In Proc. Acad. Nat. Sci. Phila., for 1861. Phila., 1862, p. 415. Arionellus (Crepicephalus) oweni n. sp. - Palaeontology of the Upper Missouri. A report upon collections made principally by the expeditions under command of Lieut. G. K. Warren, U. S. Top. Eng., in 1855-56. Invertebrates. Pt. 1. In Smithsonian Coiitrib., No. 172, Washington, 1864, 5 pis. Ayraulof* oiren! M. & H. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 153 and Worthen (A. H.) Notice of some new types of organic remains from the Coal Measures of Illinois. In Proc. Acad. Nat. Sci. Phila., 1865, p. 41. Acanthotelson n. g. Palceocaris n. g. Anthrapalcemon gracilis n. sp. Acanthotelson incequalis n. sp., A. stimpsoni n. sp. The species described as Evproops dance, is referred to as Belinurus dance, Palceocaris typus n. sp. Contributions to the palaeontology of Illinois and other Western States. In Proc. Acad. Nat. Sci. Phila., 1865, p. 245. Dalmania dance n,. sp. Lichas cucullus n. sp. Proetus ellipticus n. sp. Phillipsia (Griffithides) portlocki n. sp., P. (Griffithides) scitula n. sp., P. (Griffithides?) sangomonensis n. sp. Descriptions of invertebrates from the Car- boniferous system. In Geol. Survey Illinois, vol. 2, 1866, p. 145, pis. 14-20, 23-32. Belinurus dance M. & W. Acanthotehon stimpsoni M. & W., A. incequalis M. & W. Palceocaris typus M. & W. Anthrapalcemon gracilis M. & W. Preliminary notice of a scorpion, a Eurypterus, and other fossils from the Coal Measures of Illinois. In Am. Jour. Sci., 2d series, vol. 46, 1868, p. 19. Republished and illustrated in Geol. Survey 111., vol. 3, p. 560. Eurypterus (A nthraconectes n. subgen.) mazonensis n. sp. It is also referred to Adelopthalmus mazonensis. Ceratiocaris ? sinuatus n. sp. Acan- thotelson event n. sp. Palceocaris, of the Illinois Report, plate 31, figs. 5 and 5a, is referred to the same species. Palaeontology. In Geol. Survey Illinois, vol. 3, 1868, pp. 291-565, pis. 1-20. Trenton group: Lichas cucullus M. & W. Galena beds: Illcenus taurus Hall, /. crassicauda Wahl. ? Niagara group: Dalmanites dance M. & W. Lower Helderberg group: Dalmanites tridentifer us Shumard. Acidaspis hamala Conrad. Corniferous group: Dalmanites (Odontocephalus) cegera Hall. Hamilton group: Phacops rana Green. Kinderhook group: Proetus ellipticus M. & W. Coal Measures: Ceratiocaris ? sinuatus M. & W. Leaia tricarinata M. & W. Eurypterus ( Anthraconectes ) mazonensis M. & W. Euproops dance M. & W. Acanthotelson stimpsoni M. «fe W., A . eveni M. & W. Anthrapalcemon gracilis M. & W. Palwocaris typus M. & W. Gampsonyx fambriatus Jord. 154 CALIFORNIA ACADEMY OF SCIENCES. Descriptions of a new species and genera of fossils from the Palaeozoic rocks of the Western States. In Proc. Acad. Nat, Sci. Phila., 2d series, 1870, p. 22. Phillipsia tuberculata n. sp. Phillipsia (Griffithides) bufo n. sp. Asaphus (Isotelus) vigilans n. sp. Illcenus (Bumastus) graftonensis n. sp. Dithyro- caris carbonarius n. sp. - Descriptions of invertebrates from the Car- boniferous system. In Geol. Survey Illinois, vol. 5, 1873, pp. 323-619, pis. 1-32. Keokuk group: Phillipisa (Griffithides) portlockii M. & W., P. (Griff.) bufo M. & W. Coal Measures: Phillipsia (Griffithides) scitula M. & W., P. (Griffithides) sangamonensisM.. & W. Dithyrocaris carbonarius M. & W. Description of the invertebrates. In Geol. Survey Illinois, vol. 6, 1875, pp. 489-532, pis. 23-32. Lie has boltoni Bigsby. Illcenus (Bumastus) graftonensis M. & W. Sphcurex- ochus romingeri Hall. Asaphus (Isotelus) vigilansM.. & W. Meneghini (Giuseppe). Nuovi fossili siluriani di Sardegna. In Atti reale Accad. Liiicei, Koma, 1880, 1 pi. Dalmanites lamarmora n. sp. Posizione relativa dei varii piani siluriani delP Iglesiente in Sardegna. In Proc. verb. Soc. Toscana Sci. Nat., 1881, p. 258. Paradoxides gennarii Mgh., P. bornemanni Mgh., P. armatus Mgli. Oonocephalites bornemanni Mgh. Trinuclem ornatus and Dalmanites lam- armor 862-68, as separately itemized in this bibliography. 196 CALIFORNIA ACADEMY OF SCIENCES. Subgenus I, Trimerocephalus McCoy. Phacops ( Trimerocephalus ) lce.vis Miinst., P. cryphthophthalmus Emm. Subgenus 2, Phacops Emm. P. (Phacops) granulatus Miinst., P. (Phacops) latifrons Bronn, also var. P. (Phacops) stokesii Milne-Edw., P. (Phacops) nudus n. sp., P. (Phacops) mushini n. sp. Subgenus 3, Acaste Goldf. P. (Acaste) downingice Murch., also varia- tions (a) vulgaris, (b) macrops, (c) infiatus, (d) spinosus. Variety or sub- species P. constrictus, P. (Acaste) apiculatus Salt., P. (Acaste) minus n. sp., P. (Acaste) incertus Deslong., P. (Acaste) jamesii Portl., P. (Acaste) alifrons Salt., P. (Acaste) brongniarti Portl., also var. dalmani. Subgenus 4, Ohasmops McCoy. P. (Chasmops?) jukesii Salt., P. (Chas- mops) macroura Sjogr., P. (Chasmops) conophthalmus Boeck? P. (Chas- mops) amphora Salter, P. (Chasmops) truncato-caudatus Portl., P. (Chas- mops) bailyi n. sp. Subgenus 5, Odontochile Cord. P. (Odontochile) obtusicaudatus Salt., P. (Odontochile) mucronatus Brong., P. (Odontochile.) imbricatulus Ang., P. (Odontochile) caudatus'Briinu, var. (a) vulgaris, (b) tuber culato-caudatus Murch., (c) nexilis Salt., (d) aculeatus Salt., P. (Odontochile) longicaudatus Murch. var. (a) armiger, (b) grindrodianus, P. weaveri Salt. Subgenus 6, Cryphceus Green. P. (Cryphceus) punctatus Stein. Fam. Cheirurus subgenus Crotalocephalus Salt. Cheirurus (Crotalo- cephalus) articulatus Miinst.? C. bimucronatus Murch. var. (a)bimucro- natus, (b) centralis. Subgenus Cheirurus Beyr. C. (Cheirurus) gelasinosus Portl., C. (Cheiru- rus) cancrurus Salt. Subgenus Eccoptochile Cord. C. ( Eccoptochile ) sedgwiclci McCoy, C. (Eccoptochile)frederici n. sp. Subgenus Actinopeltis Cord., C. (Actinopeltis) juvenis Salt., C. (Actino- peltis) octolobatus McCoy. Sphcerexochus mirus Beyr., S. ? boops n. sp. Amphion pseudo-articulatus Portl., A. benevolens n. sp., A. pauper n. sp. On some fossil Crustacea from the Coal Meas- ures and Devonian rocks of New Brunswick, Nova Scotia, and Cape Breton. In London, Edinb., Dublin Philos. Mag., 4th series, vol.24, 1862. p. 166. A monograph of British Trilobites. Pt. 2. Pp. 81-128, pis. 7-19. In Palseont. Soc. London, vol. 17, 1863. Staurocephalus murchisoni Barr., S. globiceps Portl., S.? unicus Wyv. Thorn. Deiphon forbesi Barr. Calymene tuberculosa Salt., C. blumen- bachii Brong., also vars. allportiana and caractaci. Subspecies 1, Caly- mene senaria Conrad. 2, C. cambrensis Salt. Calymene tristani Brong., C. duplicata Murch., C.parvifrons Salt, also var. murchisoni, CJ daviesii n. sp. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 197 Homalonotus Sec. 1. Brongniartia Salt., H. bisulcatus Salt., H. sedgwicki n. sp., H.edgelli n. sp., H. rudis Salt., /T. brongniarti Deslong., H. vicary n. sp., H. sp.? .ff. vulcani Murch. Sec. 2. Trimurus Green. Homalonotus delphinocephalus Green, H. cylindricus n. sp., H. johannis n. sp. Sec. 3. Koenigia Salt. Homalonatus knightii Konig., H. lundensis n. sp. Sec. 4. Dipleura Green. Homalonotus dekayii Green. Sec. 5. Burmeisteria Salt. Homalanotus elongatus n. sp. Ogygia buchii Brong., 0. angustissima Salt. Staurocephalus nodulosus MS. Salt., pi. 7, fig.- 25. — On some fossil Crustacea from the Coal Meas- ures and Devonian rocks of British North America. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 75, figs. 1-12. Amphipeltis n. g. Dij)lostylus n. g. The author herein changes the name Palceocrangon Salter to that of Crangopsis. Amphipeltis paradoxus n. sp. Diplostylus dawsoni n. sp. Eurypterus pulicaris n. sp. Eurypterus allied to E. scouleri Hibb., E. sp.? On some species of Eurypterus and allied forms. In Quart. Jour. Geol. Soc. London,, vol. 19, 1863, p. 81, 8 wood cuts. Eurypterus scouleri Hibb., E. ( Arthropleura? ) mammatus (Woodward says this is an undoubted plant), E. ? (Arthropleura) ferox (this species has been referred by Woodward to the Myriopodous genus Euphoberia). On Peltocaris, a new genus of Silurian Crus- tacea. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 87. Peltocaris apychoidesSa.lt., P. harknessi n. sp. The author gives a series of wood cuts illustrating the genera Peltocaris n. g., Hymenocaris, Ceratiocaris, Dithyocaris, Arges, Apus, Nebalia, Es- theria, Leperditia, Beyrichia, On some tracks of Lower Silurian Crustacea. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 92, figs. Note on the Skiddaw slate fossils. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 135, figs. Caryocaris n. g., C. wrightii n. sp. On the discovery of Paradoxides in Britain. In Quart. Jour. Geol. Soc. London, vol. 19, 1883, p. 274. Paradoxides davidis n. sp. 198 CALIFORNIA ACADEMY OF SCIENCES. On a new Crustacean from Glasgow Coal Field. In Quart. Jour. Geol. Soc. London, vol. 19, 1863, p. 519, figs. 1, 2, PalcEOcarabus russellianus n. sp. A monograph of British Trilobites. Pt. 3, pp. 129-179, pis. 15-25. In Palaeot. Soc. London, vol. 18, for 1864 (London, 1866). Ogygia angustissiman. sp., O.I (vel. Phacops) subduplicata, see Phacops pi. xv, figs. 7 and 8), 0. ( Ptychopyge) corridensis Murch., 0. scutatrix Salt., 0. peltata Salt., 0. selwyni Salt. Barrandia — Subgenus Homalopteon. Barrandia ( Homalopteon) port- locTci Salt., B. (Homalopteon) radians McCoy. Subgenus Barrandia. B. (Barrandia) cordai McCoy. Niobe homfrayi Salt. Asaphus — Subgenus 1, Ptychopyge Ang. Asaphus angustifrons Dalm., A. latus Ang. Subgenus 2, Basilicus. Asaphus (Basilicus) tyrannus Murch., A. ( Basi- licus) peltastes n. sp., A.I (Basilicus) hybridus n. sp., A. ( Basilicus ) powisii Murch., A. (Basilicus) mar stonin. sp., A. (Basilicus?) radiatus Salt., A. (Basilicus) laticostatus McCoy. Ogygiacorndensis Murch. Subgenus 3, Megalaspis. M. extenuatus Wahl. Subgenus 4, Isotelus. Asaphus ( Isotelus) gigas Dekay, A . ( Isotelus) ajfinis McCoy, A. (Isotelus) homfrayi Salt. Subgenus 5, Cryptonymus. Asaphus expansus Linne, A. (Cryptonymus) scutalis Salt., A. (Cryptonymus) kowalewskii. Subgenus 6, Symphysurus Goldf., type S. palpebrosus Dalm. Subgenus 8, Nileus Dalman. Nileus armadillo Dalra. Stygina latifrons PortL, 8. murchisoni Murch., 8. musheni n. sp. Psilo- cephalus innotatus Salt., P . inflatus Salt. Phacops subduplicata Salt., pi. 15, figs. 7-8. Ogygia (Ptychopyge) cordensis Murch. Illcenopsis thomsoni Salt., pi. 20, figs. 1, 2. Figures and descriptions illustrative of British organic remains. Decade XI. Trilobites (chiefly Silurian) In Mem. Geol. Survey United Kingdom, London, 1864, 10 pis. The article on Salteria primceva n. g. et sp., pi. 6, was edited by P. Wyville Thomson. The genera are arranged in this work in the following order: PI. 1. Agnostus princeps Salt., also var. (a) ornatus, (b) rudis. Sec. 1. Condylopyge. Agnostus maccoyi Salt., A. rex Barr., A. morea n. sp. Sec. 2. Agnostus, A. pisiformis Linne, A. princeps Salt., A. trisectus n. sp. Sec. 3. Trinodus. A. tardusTSa-rr., A. trinodusSalt., A. limbatus n. sp. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 199 Sec. 4. Phalacroma. A. integer Beyr. PI. 2. Stygina latifrons Portl. PL 3. Asaphus gigas Dekay. Isotelus rectifrons Portl., /. sp. ? PI. 4. Mglina binodosa Salt., A. grandis Salt. PI. 5. Staurocephalus murchisoni Barr., S.? unicus, Wyv. Thorn., S. globiceps Portl. PL 6. Salteria primceva Wyv. Thorn., S. involuta n. sp. PL 7. Angelina sedgwicki Salt. Conocoryphe invita Salt., with list of British species. PI. 8. Olenus cataractes Salt., 0. (Spcerophthalmus) Jlagellifer Ang., O. (Parabolina) serratus Salt., O. scarabceoides WahL, also var. obesus, O. (Sphceroph.) humilis PhiU., O. bisulcatus PhilL, O. (Sphceroph.) pecten Salt., 0. cataractes Salt., O. (Sphceroph.) alatus Boeck, O. (Leptoplastus) or Sphcerophthalmus raphidophorus Ang., 0. (Parabolina) spinulosa WahL PL 9. Phacops (Trimerocephafas) Icevis Miinst., P. (Trimer.?) crypto - phthalmus Emm. PL 10. Paradoxides davidls Salt., P . forchhammeri Ang. On some fossils from the Lingula flags of Wales. In Quart. Jour. Geol. Soc. London, vol. 20, 1864, p. 233, pi. 13. Anopolenus n. g. Holocephalina n. g. Anopolenus henrici n. sp. Con- ocoryphe ? variolaris n. sp. Holocephatina primordialis n.sp. Agnostus princeps Salt. Microdiscus punctatus n. sp. Leperditia solvensis Jones. Note on the fossils from the Budleigh sand- stone pebble bed. In Quart. Jour. Geol. Soc. London, vol. 20, 1864, p. 286, pi. 15. Phacops incertus Deslong. Calymene tristani Brong. Homalonotus brongniarti Deslong. Myocaris n. g., M. lutraria n. sp. For detailed description of Myocaris, see Geol. Mag., vol. 1, London, 1864, p. 11, fig. 4. On the new genus Anopolenus. In Geol. Mag., vol. 1, London, 1864, p. 6. Anopolenus henrici Salt. Myocaris lutraria Salt. Catalogue of the Museum of Practical Geology of London. London, 1865. and Woodward (Henry). Chart of .fossil Crustacea, accompanied by a descriptive catalogue of all the genera and species figured. London, 1865, pis. 3 and 4. See, also, Kep. 35th Meeting Brit. Assoc. Adv. Sci., 1865, Trans, of Sec., p. 79; Geol. Mag., vol. 2, London, 1865, p. 468. 200 CALIFORNIA ACADEMY OF SCIENCES. Order Decapoda, Sub-Orders 1 and 2. Brachyura and Anomura. No Palaeozoic genera. Sub-Order 3: Macrura. 1, Palceocrangon socialis Salt. 2, Palaocarabus dubius Prestw. 3, P. russellianus Salt. Orders Stomapoda, Amphipoda, Isopoda. 1, Kampecaris forfariensis Page. 2, Gitocrangon granulatus Eichter. 3, Amphipeltis paradoxus Salt. 4, Pygocephalus cooperi Huxley. 5, Uronectes (Gampsonyx) fimbriatus Jordan. 6, Diplostylus dawsoni Salt. 7, Prosoponiscus problematicus Geintz. 8, Dalmanites kablikice Geintz. 9, Bostricliopus antiquus Goldf. Order Trilobita. Agnostus nudus Beyr., A. rex Barr., A. granulatus Barr., A. princeps Salt., A. maccoyi Salt., A. trinodus Salt. Sao hirsuta Barr. Anomocaris difformis Aug. Dolichometopus suecicus Aug. Anopo- caris pusillus Aug. Arionellus ceticephalus Barr. Conocoryphe sulzeri Schloth., C. breviceps Ang., C. ? ( Harpides) rugosa Ang. Solenopleura canaliculata Ang. Acerocaris ecornis Aug. Ellipsocephalus hoffi Schloth. Olenus gibbosus Wahl., 0. (Parabolina) spinulosus Wahl., 0. (Peltura) scarabceoides \Vahl., 0. (Spli(KropJiihalmus)alatus Boeck, 0. micrurus Salt., 0.? holopyge Hall. Paradoxides bohemicus Boeck, P. bennetli Salt., P. inflatus Cord. Hydrocephalus car ens Barr. Dikelocephalus minnesotensis Owen, D. magnificus Bill., D. granulosus Owen. Lonchocephalus chippe- ivaensis Owen. Palceopyge ramsayi Salt. Menocephalus globosus Bill. Centropleura dicrceura Ang., C, angusticauda Ang. Corynexochus umbon- atus Ang. Atops trilineatus Emm. Triarthus beckii Green. Cyphoniscus socialis Salt. Remopleurides colbii Portl., It. radians Barr. Harpes doranni Portl., H. ungula Sternb., H. macrocephalus Goldf. Calymene, declinata Barr., C. tuberculosa Salt., C. bluembachii Brong. Cybele verrucosa Dalm. Staurocephalus murchisoni Barr. Acidaspis buchii Barr., A. mira Barr. Encrinurus punctatus Briiiin, E. subvariolaris Miinst. Deiphon forbesii Barr. Eccoptochile sedgwickii McCoy. Cheirurus quenstedti Barr., C. sternbergii Miinst., C. myops Koenier. Sphtextus n. sp., A.plicicostis 11. sp. Megalaspis acuticauda Ang., M. gigas Ang., M. grandis Sars., also vars. laid and rudis, M. lambens n. sp., M.formosa u. sp., M. palagiala 11. sp., M. dalecarlica Holm. Niobe Iceviceps Dalm., N.frontalis Dalm., N. emar- ginulaAng. Trinucleus selicornis His. Ampyx pater Holm., A. nasutus Dalm., A.foveolatus Aug., A. portlocki Barr., A. setirostris Ang. A. crassi- rostris Ang. Isocolus sjoyreni Ang. Tclephus fraclus Barr. Aynostus tornquisti Holm., A. glabratns Aug., A. trinodus Salt. Trilobites brevi- frons Holm., T. triradiatus n. sp. Megalaspis limbata Boeck forma lata. Torrubia (J.) Aparato para la historia natural es- pafiola. Vol. 1. Madrid, 1754, p. 83, par. 13, No. 96. The Rev. Father Joseph Torrubia has the merit of referring the Trilo- bites to the Crustacea. BIBLIOGRAPHY OP PALAEOZOIC CRUSTACEA. 217 Traquair (R. H.) Occurrence of Trilobites in the Carboniferous Limestones of Fifeshire. In Proc. KoyalPhys. Soc. Edinburgh, vol. 2, 1859-62, p. 253. Grijfithides mucronatus McCoy. On the Griffithides mucronatus McCoy. In Jour. Koyal Geol. Soc. Ireland, vol. 2, 1869, p. 213, pi. Trautschold (H.) Die Trilobiten als Erstge.borene. In Bull. Soc. Imp. des Naturalistes, Moscou, 1871, p. 297. Die Kalkbruche von Mjatschkowa. Eine Mo- nographie des oberen Bergkalkes. In Mem. Soc. Imp. des Naturalistes, Moscou, vol. 13, 1874, p. 277. Pkillipsia globiceps Phill., P. grtlnewaldti Moller, P. pustulata Schloth. Trenkner (M. W.) Palaontologische Novitaten vom nordwestlichen Harze Iberger kalk uiid kohlengebirge von Gruiid. In Abhandl. d. Naturf. Gesellich. zu Halle Bd. 10, 1867, pi. 1. Harpes convexus n. sp. Bronteus alutaceus Gold. Cyphaspis ellipso- cephalus n. sp. Cypridina gigantea n. sp. Palaontologische ]$6vitaten voni Nordwest- lichen Harze. In Abhandl. d. Naturf. Gesellsch. zu Halle Bd. 10, 1867, pi. 5. Homalonotus granulosus n. sp. Cylindrocephalus angustus n. sp. Homa- lonotus trigonalus n. sp. Tristan (J.) and Bigot (P. M. S.) Sur un crustace renferme dans quelques schistes, notamment dans ceux des environs de Nantes (dept. de la Loire-Inferieure) et d'Angers (dept. de Maine-et-Loire). In Jour. Mines, vol. 23, 1808, p. 2. (Calymene tristani Broug.) Tromelin (G) and Lebesconte (P.) Observations sur les terrains primaires du nord du dept. d'llle-et-Yilaine et de quelques autres parties du massif breton. In Bull. Soc. Geol. France, 3d series, vol. 4, 1875-76, p. 583. Dalmanites ronaulti n. sp. Homalonotus gahardensis. Troost (Gerhard). Description d'un nouveau genre . On the North American species of the genus Agnostus. In the American Geologist, vol. 9, 1892, p. 377, pis. 9-10. Agnostus acutilobus Matt., A. obtusllobus Matt., A. tesella Matt., A. acadicus Hartt., A. recjulus Matt., A. umbo Matt., A. vir Matt., A. vir var. concinus Matt., A. americanusJ$i\l., A. canadensis Bill., A. communis H. & W., A. coloradensis Shumard, A. orion Bill., A. josepha Hall, A. rich- mondensis Wai., A. maladensis Meek, A. bidens Meek, A. tumidosus H. & W., A. intersirictus White, A. disparilis Hall, A.parilis Hall, A.prolongus H. & W., A. seclusus Wai., A. galba Bill., A.fabius Bill. Notes on Palaeozoic Crustacea. No. 3. On the genus Ampyx, with descriptions of the American species. In The American Geologist, vol. 11, 1893, p. 99. Ampyx nudus Murch., A. nasutus Dalm. Lonchodomas domastus Ang. Ampyx americanus Vogd. & Saff., A. halli Bill., A. normalisBill., A. ruti- lius Bill., A. semicostatus Bill. The author arranges this genus into three sections, as follows: Sec. 1, Brevifrontes, type Ampyx nudus Murch. Sec. 2, Longifroiites, type Am- pyx nasutus Dalm. Sec. 3, Lonchodomas, type L. domastus Ang. For other references see Safford (J. M. ) and Vogdes (A. W.) BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 225 Volborth (A.) Ueber einige russiche Trilobiten. In Verhandl. russ. k. mineral. Gesell. zu St. Petersburg, 1847, p. 1, pi. 1. The author redescribed the genus Zethus Pander and its type Zethus <•• rrurosus, placing Cybele bellatulus Eichw. under the same genus. Zethus verrucosns Pand., Z. bellatulus Dalm. Volborth on p. 15 signifies the particular affinities which exist between Dindymene and Zethus. He expresses the opinion that these two genera are identical. - Ueber das Prioritatsrecht der Trilobiten-Gat- tung Zethus Pander gegeii die Gattung Cryptonymus Eichwald. In Bull. Physieo-Math. Acad. Sci., St. Petersburg, 1854, p. 251. Ueber die Bewegungs-Organe der Trilobiten. Folgendes mit. In Verhandl. russ. k. mineral. Gesellsch. zu St. Petersburg, 1857-58, p. 168. Ueber die Crotaluren und Remopleuriden, ein Beitrag zur Kenntniss der russichen Trilobiten. In Verhandl. russ. k. mineral. Gesell. zu St. Petersburg, 1857-58, p. 126. pi. 13. Crotahtrus n. g., C. barrandei n. sp. Remopleurides nanus Leucht. Ueber die mit glatten Kumpfgliedern verse- heneii russischen Trilobiten, nebst einem Anhange iiber die Bewegungsorgane und iiber das Herz derselben. In Mem. Acad. Imp. Sci. St. Petersburg, vol. 6, No. 2, 1863, 48 pp., 4 pis. Panderia n. g. Illanus crassicauda Wahl., /. dalmani n. sp., /. tauri- cornis Kut., /. triodontusus n. sp. Dysplanus centrotus Dalm., D. muticits n. sp. Panderia triquetra n. sp., P. minima n. sp. Nileus armadillo Dalm. Bumastus barriensis Murch. This article also contains an essay on the organs which were found by Dr. Pander on the under side of the pleurae of Asaphus, which resemble very much the feet of Trilobites. There is also a second paper on the heart of the trilobites. The author states that he found on an Illcenus from which the shell had been removed in the region of the axis, on the median line, a small, flat, depressed, tubular organ, horizontal furrowed and divided into thirteen chambers. This tube extends from the margin of the pygidium in a curved line to the glabella. The chambers are all of uniform length — 1 \ mm. The width enlarges towards the front in such a manner that the first nine chambers from the pygidium are only \\ mm., whereas the tenth and eleventh 15 226 CALIFORNIA ACADEMY OF SCIENCES. chambers are 2i to 3 mm. in width. The anterior chambers are nearly double as wide, and they are divided by a transverse furrow (which is probably a line of fracture) into two equal parts. The thirteenth cham- ber lies under the glabella. - Ueber einige neue ehstlandische Illsenen. In Mem. Acad. Imp. Sci. St. Petersburg, vol. 8, No. 9, 1864, 2 pis. Jlht-nus schmidtii Nieszk., also var. /. roemeri 11. sp., /. lauricornis Kut. Ueber Herrn von Eichwald's Beitrag zur naheren Kenntniss der Illsenen, etc. In Bull. Soc. Imp. des Naturalistes, Moscou, 1866, No. 1, p. 77. Wahlenberg ( Geo.) Petrificata telluris Suecana. Upsalise, 1818. This work was published and distributed in 1818 as a separate article, in advance of the Nova Acta Keg. Soc., vol. 8, 1821. Petrificata telluris Suecana examinata a Georgio Wahlenberg. In Nova Acta Keg. Soc. Sci., Upsal., vol. 8, 1821, pp. 1-116, pis. 1-4. 1, Entomotstracites expansus Liiine. 2, E. crassicauda n. sp., pi. 2, figs. 5 and 6. 3, E. laticauda n. sp., pi. 2, figs. 7 and 8. 4, E. caudatus Britnii, pi. 2, fig. 3. 5, E. grannlatus n. sp., pi. 2, fig. 4. 6, E. tuberculatus Briiiin. 7, E. punctatus Britiin, pi. 2, fig. 1.* 8, E. lac hiatus n. sp., pi. 2, fig. 2." 9, E. paradoxissimus Liniie, pi. 1, fig. 1. (Paradoxides tessini Broiig.) 10, E. bucephalus n. sp., pi. 1, fig. 6 (hypostoma of Paradoxides tessini Broiig.) 11, E. spinulosus n. sp., pi. 1, fig. 3. 12, E. gibbosus 11. sp., pi. 1, fig. 4. 13, E. scarab. zo/e n. sp., Z). marica n. sp., Z>. nasutus n. sp., Z). osceola Hall, Z>.? quadriceps H. & W., Z>. richmondensis n. sp. Plychoparia ? angulatus H. & W., P. anytus H. & W., P. (Solenepleura?) breviceps n. sp., P. granulosus H. & W., P. haguei H. & W., P. Iceviceps n. sp., P. .? linnars- xoni u. sp., P. maculosus H. & W., P. nitidus H. & W., P. occidentalis n. sp., P. owe.ni M. & H., P. pernasutus n. sp., P.? prospectensis n. sp., P.? .s/'w/V/s n. sp., P.tsimilie var. robustus, P. unisulcalus H. & W., P. (Euloma?) cijfinia n. sp., P. (Euloma?) -dissimilis n. sp., P. (Pterocephalus) laticeps H. ct W., P. (Pterocephalus) occidens n. sp. Anomocare? parvum n. sp. Ptychaspis minuta Whitf., P. pustulosall. & VV. Chariocephalus tumifrons H. tt W. Agraiilos? globosus n. sp. Arethusina americana n. sp. Ogygiat t>rol>t- mat tea n. sp., 0. ? spinosa n. sp. Illamurus sp. ? Lower Silurian : Leperditia bivia White. Btyrichia sp. ? Plumuliiessp.'i Agnostus communia H. & W., .4. lumidosus H. & W. Dicellocephalus in- exj>ectans 11. sp., Z>. finalis u. sp., Z>. muUicinctus H. & VV. Ptychoparia annectans n. sp., P. granulosus H. & W., P. haguei H. & W., P. maculosus H. X- W., P. ozoenz H. & M., P. unisulcatus H. & W., P. (Euloma) affinis u. sp. Arethusina americana n. sp. Bathyurus? congeneris n. sp., 5. pogoni- pensia H. & W., 5.? simillimus n. sp., 5. tuberculatus n. sp., 5. sp.? Cty- 1-hnxpis? brevimarginatus n. sp. Amphion nevadensis n. sp., ^4. sp.? (7e- /v/ ///•?<« sp. ? Spmphysurus'? goldfussi n". sp. Barrandia? maccoyi n. sp. Illhnus eurekensis n. sp., /. crassicauda Wahl. Asaphus caribouensis n. sp., ^4.? curiosus Bill., ^4. sp. ? Lone Mountain Silurian: Ceraurus. Dalmanites. Trinucleus concentricus Eaton, lllcenus. Asaphus platycephalus Stokes. Devonian: Beyrichia occidentalis n. sp. Leperditia rotundata n. sp. Phacops rana Green. Dalmanites meeki n. sp. Proetus haldemani Hall,' P. marginalia Conrad. Phillipsia coronata Hall. ? Carboniferous: Leperditia. Grijfithides ftortlocki M. & VV. : — On the Cambrian faunas of North America. Preliminary studies. In Bull. U. S. Geol. Survey, No. 10, 1884, 10 pis. Harttia n. g. Protocaris n. g. The St. John formation: Agnostus acadicus Hartt. Microdiscus dawsoni Hartt., Jf. punctatus Salt. Paradoxides lamellatus Hart., ^4. acadicus Matt., P. eteminicus Matt. Conocoryphe (subgenus?) matthewi Hartt., C. walcotti Matt., C. (Salteria) baileyi Hartt., (7. elegans Hartt. Ptychoparia robbi Hartt., P. ouangondiana Hartt., also var. aurora, P.quadrataH&rit., P. orestes Hartt., also var. thersiles Hartt., P. tener Hartt. Fauna of the Braintree Argillites: Paradoxides harlani Green. Ptycho- rogersi u. sp. Agraulos quandr angular is Whitf. Georgian formation: Protocaris marshi n. sp. 230 CALIFORNIA ACADEMY OF SCIENCES. Palaeozoic notes: New genus of Cambrian Trilobites, Mesonacis. In Am. Jour. Sci., 3d series, vol. 29, 1885, p. 328, tigs. Describes a new genus, Mesonacis, and substitutes the generic name Bailiella of Matthew for the subgenus Salteria, proposed by him (Bull. U. S. Geol. Survey, No. 10, 1884). Mesonacis vermonlana Hall, also probably Olenellus howelli. Second contribution to the studies on the Cambrian fauna of North America. In Bull. U. S. Geol. Survey, No. 30, 1886. Oryctocephalus 11. g. Protypus n. g. Leperditia troyensis Ford, L. '!• argenta n. sp. Protocaris marshi Wai. Agnostus interstricus White, A . nobilis Ford. Microdiscus speciosus Ford, M. meeki Ford, M. lobatus Hall., M. parkeri n. sp. Mesonacis vermontana Hall. Olenellus thompsoni Hall, 0. asaphoides Emmons, 0. iddingsi Wai., 0. gllberti Meek. Olenoides neva- densisM.eek, 0. typicalis n. sp., 0. spinosus \VaL, 0.? flagricaudus White, O.? marcoui Whitf., O. Icevisu. sp., O. quadriceps H. & W., 0. wahsatchen- sis H. & W. Bathynotus holopyga Hall. Ptychoparia kingi Meek, P. adamsi Bill., P. teucer Bill., P. vulcanus Bill., P. miser Bill., P. quadrans H. & W., P. housensis 11. sp., P. piochensis 11. sp., P.? prospectensls Wai., P. trillneata Emmons, P. subcoranata H. & W. Crepicephalus liliana n. sp., C, angusta n. sp. Anomocare? parvum Wai. Oryctocejyhalus primus 11. sp. Protypus hichcocki Whit., P. senectm Bill. Solenopleura nana Ford. Bathyuriscus howelli 11. sp., B. productus H. & W. Asaphiscus wheeleri Meek. Dopypyye. — Fauna of the upper Taconic of Emmons, in Washington County, New York, with one plate. In Am. Jour. Sci., 3d series, vol. 34, 1887, p. 187. Leperditia dematoides n. sp. Aristozoe troyensls Ford, A. rotundata 11. sp. Microdiscus connexus n. sp. Olenoides for di 11. sp. Solenopleura^. tumida n. sp., #.? nana Ford. Conocoryphe trillneata Emmons. Pty- choparia fitchi n. sp., P, ? (subgenus?) clavata n. sp. Cambrian fossils from Mount Stephens, North West Territory of Canada. Am. Jour. Sci., 3d series, vol. 36, 1888, p. 161. The author classes the following species under Olenoides: 0. nevadensis, O. marcoui, 0. quadriceps, 0. wasatchensts. Under the genus Zacanthoides he arranges Olenoides typicalis, 0. spino- sus, C. ICKVIS and 0, flagricaudatus. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 231 Stratigraphic position of the Olenellus fauna in Xorth America and Europe. Am. Jour. Sci., 3d series, vol. 37, 1889, p. 374, continued on p. 392 of the same journal. Descriptive notes on new genera and species, from the Lower Caaiibrian or Olenellus zone of North America. In Proc. U. S. Natl. Mus., vol. 12, 1889, p. 34. A f/nostus desideratum n. sp., A. sp.? Microdiscus helena n. sp. Olenellus ( M< monads ) asaphoides Emmons, 0. ( M.) brogyeri Walcott. Avalonia n. g., A. manuelensis n. sp. Zacanthoides eatoni n. sp. Solenopleura harveyi n. sp., S. howleyi n. sp. The fauna of the Lower Cambrian or Olenellus Zone. In 10th Rep. U. S. Geol. Sur. Washington, 1890, pp. 515-658, pis. 43-93. Isoxysn.g., I. chilhoweanan. sp. Leperditia dematoides Wai. Aristozoe rotundata Wai., A. troyensis Ford. Nortozoe? vermontana Whitf. Proto- carii mamhi Wai. Aynostus desideratus Wai., A. nobilis Ford., .-l.sp.? Microxdicus belli mar ginat us S. & F., M. connexus Wai., M. meeki Ford., M. L>arb-ri Wai., M. lobatus Hall, M. speciosus Ford., M. Helena Wai., M. sp. ? Olenellus thompsoni Hall, 0. gilberti Meek, O. iddings Wai. Mesonacis: Olenellus ( Mesonacis) vermontana Hall, 0. (M.) mfckwitzia Schm. and O. (M .) asaphoides Emmons. Holmia: Olenellus (Holmia) kjerulfi Linrs., 0. (H.) brogijeri Wai., O. (H.) callavei Lapw. Olenoides fordi Wai., O.marcoui Whitf., O. ellsi n.sp., O. (Dorypyge) disiderata n. sp., 0. quadriceps H. & W. Zacanthoides ?«<•/* Wai ., Z. eatoni Wai. Bathynotus holopyge Hall. Avalonia manuelensis Wai. Conocoryphe trilineata Emmons, C. reticulata n. sp. Ptychoparia adamsi Bill., P.? attleborensis S. & F., P.fitchi Wai., P. miser Bill., P. metisensis n. sp., P. subcoronalaH. & W., P. teucer Bill., P. vulcanus Bill. Crepi- cephalus angusta Wai., C.lillianaWal. Oryctocephalus primus Wai. Ayrau- losstrenuus Bill., also var. nasutus, A. redpathi u. sp. Protypus hitchcocki Whitf., P. senectus Bill., P. clavatus Wai. Solenopleura bombifrons Matt., N. harveyi Wai., S./ howleyi Wai., ,9..? «a?m Ford., .9..? tumida Wai. In this contribution to the Olenellus zone Walcott gives a bibliographic reference to the articles on the subject, also a historical review, with geologic description of the Lower Cambrian or Olenellus zone as known to the geologist, etc. Notes on the Cambrian rocks of Virginia and the Southern Appalachians. In Am. Jour. Sci., 3d series, vol. 44, 1892, p. .V2. 232 CALIFORNIA ACADEMY OF SCIENCES. The author includes in the fauna of the lowest horizon in Wisconsin: Ptychoparia calt/menoides Whitf., Agraulos? fecundus n. sp., Orepicephctlus onustus 11. sp., Ayraulos woosteri Whitf. In the next zone above, which is also included in the Middle Cambrian, the following species occur: Pemphigaspis bullata Hall. Agnostnsl Crepi- cephalus texanus Shum., C. iowensiis Owen. Ptychoparia connata 11. sp., P. optatus Hall, P. (Lonchocephalus) chippeivensis Owen, P. ( L.) minor Shum. Amphion matutina Hall, and Ayraulos thea n. sp. Waldschmidt (E.) Ueber die devonischen Schichteii der Gegend von Wiidungen. In Zeitschr. Deutsch. Geol. Gesell., vol. 37, 1885, p. 906, pis. 37-40. Bronteus thysanopeltis Barr. Phacops fecundus Barr. Acidaspis 11. sp. Proetus 11. sp. Warder (John A.) New Trilobites. In Am. Jour. Sci., 1st series, vol.34, 1838, p. 377. Ceratocephala 11. g. This article on the new genus Ceratocephala was read before the Western Academy of Science, May 25, 1838. The name Ceratocephala was proposed for a fossil from Springfield, Ohio, well described and illustrated. The original specimen which received the name of Ceratocephala yoniata was a large head of a trilobite with bases of conspicuous spines upon the occipital ring. The author illus- trated the fossil in an inverted position and regarded the occipital spines as antennae. Washburn (W. T.) New Trilobites. In Am. Jour. Sci., 3d series, vol. 6, 1873, p. 186. Not descriptive; contains important notes on fossil Crustacea. Weiss (C. E.) Note on Esthere (Esther iella ) costata and Esthere (Esther iella) lineata Weiss. In Zeitsch Deutsch Geol. Gesell., Berlin, vol. 27, 1875, p. 711. Weitenweber (W. E.) Systematisches Verzeiclmiss der bohmischen Trilobiten in der Sammlung des Dr. /eidler. In Lotos, vol. 7, 1847, pp. 5-42. Wetherby (A. G.) Description of a new family and genus of Lower Silurian Crustacea. In Jour. Cincinnati Soc. Nat. Hist., vol. 1, 1878-79; p. 162, fig.; vol. 2, pi. 7, figs. 1, 1 a-g. Enoploura balanoides n. sp. This fossil is probably a Cystidre and not of the order Crustacea. BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 233 Description of new fossils from the Lower Silurian and Subcarboniferous rocks of Ohio and Ken- tucky. In Jour. Cincinnati Soc. Nat. Hist., vol. 4, 1881, p. 77. Proetus yrciinilatus n. sp. Isochilina jonesi n. sp. White (C. A.) and St. John (0. H.) Preliminary notice of new genera and species of fossils. Iowa City, May 8, 1867, 3 pp. Beyrichia lithofactor u. sp., B. lithofactor var. velata u. sp. Cythere Simplex n. sp. Of this small pamphlet only fifty copies were published by the Iowa State Geological Survey. Republished in Trans. Chicago Acad. Sci., vol. 1, 1867. Description of new Subcarboniferous and Coal- Measure fossils collected upon the geological survey of Iowa, together with a notice of new generic characters observed in two species of Brachiopods. In Trans. Chicago Acad. Sci., vol. 1, pt. 1, 1867, p. 115, 2 figs. Bey richiapetr if actor, B. petrifactor var. velata, B. ftetoidea n. sp. Cythere simplex. In this article the authors give the new names of Beyrichia petrifactor to the species described in the preliminary notice as B. Uthofactor, and also change the name of B. lithofactor var. velata to that of Beyrichia petri- factor var. velata. Preliminary report upon invertebrate fossils collected by the expeditions of 1871, 1872 and 1873, with descriptions of new species. In Geog. and Geol. Expl. Surveys West 100th Meridian, Washington, 1874. Aynostus interstricta n. sp. Olenellus gilberti Meek MS., O. howelli Meek MS. Leperditia bivia n. sp. Meglaspis belemurus 11. sp. Dicellocephalu* fl ay ric audits n. sp. Report upon the invertebrate fossils collected in portions of Nevada, Utah, Colorado, New Mexico and Arizona, by parties of the expeditions of 1871, 1872, 1873 and 1874. In Geographical Surveys West. 100th Meridian. Palaeontology, vol. 4, 1877, pt. 1, pp. 1-219, pis. 1-21. Aynostus inter strictus White. Conocoryphe ( Ptychojiaria ) kinyi Meek. 234 CALIFORNIA ACADEMY OF SCIENCES. Asaphiscus ivheeleri Meek. Olenellus yilberti Meek, 0. howelll Meek. Leperdita bivia White. Meglaspis belemurus White. Dicellocephalus Jia- yricaudus White. Palaeontology: Fossils of the Indiana rocks. In 2d Ann. Rep. Dept. Statistics and Geology, Indiana, 1880. pp. 471-522, pis. 1-11. Calymene senaria Conrad. Cyphaspis christyi Hall. Phillipsia bufo Meek. The fossils of the Indiana rocks. No. 3. In 13th Ann. Rep. Dept. Geol. and Nat. Hist., Indiana, 1883, pt. 2, pp. 107-180, pis. 23, 39. Phillipsia ( Griffithidcst) scitula Meek, P. (G.'i) sangamonensis M. & W. Eurypterus (Anthraconetes) mazonensis M. & W., A. eveni M. & W. Palce- ocaris typus M. & W. Dithyrocaris carbonarius M. & W. Leaia tricari- nataM.. & W. Euproops dance Meek, E. colletti n. sp. Whiteaves (J. F.) Palaeozoic fossils. Vol. 3, pt. 1, 1884. In Geol. and Nat. Hist. Survey Canada, 1884, 8 pis. Eurypterus boylei n. sp. For description of Solenopleura acadia Whit- eaves. See Trans. Royal Soc. Canada, vol. 3, 1885, p. 76. Contributions to Canadian Palaeontology. Vol. 1. Montreal, 1885-1892. Part 2. On some fossils from the Hamilton Formation of Ontario, etc. Dalmanites helena Hall, D. boothii Green. Phacops rana Green. Cytherv ? ( Beyrlchia) punctulifera Hall. Part 3. The fossils of the Devonian rocks of the Mackenzie River Basin. Primitia scitula Jones. Aparchites mitis Jones. Isochilina belhda Jones. Proetus haldemani Hall. Part 4. The fossils of the Devonian rocks of the islands, shores or im- mediate vicinity of lakes Manitoba and Wiiinepegosis. Ixochilina daivsoni Jones. Elpe tyrrellii Jones. Leper -ditia ? exifjua Jones. Bronteus manitobensis n. sp. Lichas ( Terataspis) 11. sp. Cyphaspis bellula n. sp. Proetus mundulus n. sp. Description of a new genus and species of Phyllocarid Crustacea from the Middle Cambrian of Mt. Stephen, British Columbia. In Canadian Record of Science, vol. 5, 1892, pp. 205-208. Anomalocaris n. g., A. canaden.ns n. sp. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 235 Whitfield (R. P.) Description of new species of fossils. In Rep. Reconiioissance from Carrol, Montana Territory, on the Upper Missouri, to the Yellowstone National Park and return, Lndlow's report, Washington, 1876. Crepicephalus ( Loganellus) montanensis n. sp. Arionellus tripunctatus u. sp. See, also, Rep. Chief Eng. U. S. A., 1876, Appendix NN. Preliminary descriptions of new species of fossils from the lower geological formation of Wisconsin. In Ann. Rep. Geol. Survey Wisconsin, 1877, pp. 50-89. Conocephalites calymenoides n. sp. Crepicephalus onuslus 11. sp. Pty- chaspis granulosa Owen, P. striata n. sp., P. minuta n. sp. Agraulo* ( Bathyurus ?) ivoosteri n. sp. Arionellus (Agraulos) convexus n. sp. Ellipsocephalus curtus n. sp. Dicellocephalus barbuemis n. sp., D. eatoni n. sp. Illcenurus convexus n. sp. Illcenus pterocephalus n. sp. Bronteus taphami n. sp. Preliminary report on the palaeontology of the Black Hills, containing descriptions of new species of fossils from the Potsdam, Jurassic and Cretaceous for- mations of the Black Hills of Dakota. In U. S. Geol. Survey Rocky Mountain Region, Washington, 1877. Crepicephalus (Loganelluts) centralis n. sp., C. (Loganellus) planus n. sp. Description of new species of fossils from the Palaeozoic formations of Wisconsin. In Ann. Rep. Geol. Survey Wisconsin, 1870, pp. 44-71. Conocephalites ? quadratus n. sp., C. (Ptychaspis ? ) explanatus n. sp. Crepicephalus ? gibbsi n. sp. Ptychaspis striata n. sp. Dicellocephalus lodensis n. sp. Aglaspis eatoni n.sp. Asaphus triangulatus n.sp. Illanus niagriensis n. sp. New forms of fossil Crustaceans from the Upper Devonian rocks of Ohio, with descriptions of new genera and species. In Am. Jour. Sci., 3d series, vol. 19, 1880, p. 33. Echinocaris n. g. Palceopalcemon n. g. A plate and explanation accompany the author's edition. Echinocaris sublcevis n. sp., E. pustulosa n. sp., E. multinodosa n. sp. Pafoopalcemon newberryi u. sp. Arittozo.e canaden*is Whitf. 236 CALIFORNIA ACADEMY OF SCIENCES. Paleontology of the Black Hills of Dakota. In U. S. Geog. and Geol. Survey Kocky Mountain Region. Eep. Geol. and Resources of the Black Hills of Dakota, with atlas; by Henry New- ton and Walter Jeiiiiey, Washington, 1880, p. 325, pi. 2. Crepicephalus planus n. sp., C. centralis n. sp. Palaeontology. In Geol. Wisconsin, vol. 4, 1882, pt. 3, pp. 163-363, pis. 1-27. Potsdam Sandstone: (Dicellocephalus zone.) Conocephalites f)if> eatoni 11. sp. Species from the Lower Magnesian Limestone: Dicellocephalus barabu- ensis Whitf., D. eatoni Whitf. Illcenurus convexus Whitf. Species from the Trenton Limestone: Asaphus susce Calvin MS., A . homalonotoides Wai. Illctnus ovatus Conrad. Species from the Niagara Group, 111.: I litmus ioxus Hall, /. insiynis Hall, /. imperator Hall, /. madison/anns n. sp., /. pterocephalus Whitf. Bronteus laphami Whitf. tijjhtzrexochus rominyeri Hall. Devonic: Leperditia alta Conrad. Phacops rana Green. Description of new species of fossils from Ohio, with remarks on some of the geological forma- tions in which they occur. In Annals New York Acad. Sci., vol. 2, Nos. 7, 8, 1882, p. 193. Eurypterus eriensisn. sp. Leperditia anyulifera n. sp. Plumulites new- berryi 11. sp. — — — On the fauna of the Lower Carboniferous limestones of Spergen Hill, Indiana, with a revision of the descriptions of its fossils heretofore published, and illustrations of the species from the original type species. In Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 3, 1882, pi. 9. Leperditia carbonaria Hall. Cytherina ylandella 11. sp. Plates republished iu 12th Rep. Geol. Nat. Hist. Indiana, 1882. List of Wisconsin fossils. In Geol. Wisconsin, vol. 1, 1883, p. 362; also illustrations of typical fossils of the Wisconsin formations. Fig. 15 is an entire specimen of Dicellocephalus minnesotensis Owen. BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 237 Notice of some new species of Primordial fos- sil in the collection of the Museum, and corrections of previously described species. In Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 5, 1884, p. 139, pis. 14, 15. Nothozoe vermonlana n. sp. Gonocephalites verrucosus u. sp. Arionel- his quadranyularis n. sp. Angelina hitchcockl n. sp. Dikelocephalust marcoui n. sp. Olenellus thompsoni Hall. Notice of a very large species of Homalonotus from the Oriskany sandstone formation. In Bull. Am. Mus. Nat. Hist., New York, vol. 1, No. 6, 1885, p. 193, pi. 22. Homalonotus major n. sp. Notice of geological investigations along the eastern shore of Lake Champlain, conducted by Prof. H. M. Seely and Prest. Ezra Brainerd, of Middlebury College, with descriptions of the new fossils discovered. In Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 8, 1886, p. 293. Soot lamottensis n. sp. Lichas champlainensis n. sp. Asaphus canalis Conrad. Observations on some imperfectly known fos- sils from the calciferous sandrock of Lake Champlain, and descriptions of several new forms. In Bull. Am. Mus. Nat. Hist. New York, vol. 2, No. 2, 1889, p. 41, 13 pis. Primitia gregaria n. sp., /*.? cristata n. sp., P. seelyi u. sp. Bathyurus conicus n. sp., B. seelyi n. sp. Additional notes on Asaphus canalis Conrad. In Bull. Am. Mus. Nat. Hist. New York, vol. 2, No. 2, 1889, p. 64, pis. 11, 12. Description of a new form of fossil, Balanoid Cirripede, from the Marcellus shale of New York. In Bull. Am. Mus. Nat. Hist. New York, vol. 2, No. 2, 1889, p. 66. Protobalanus n. g., P. hamiltonensis n. sp., pi. 13, fig. 22. Contributions to Invertebrate Palaeontology. In Annals N. Y. Acad. Sci., vol. 5, 1890, p. 505, 15 pis. Leperditia alta Conrad, L. angnlifera Whitf. Eurypterns eriensis Whitf. Plumulites newberryi Whitf. Echinocaris sublaris Whitf., E. piistulosa Whitf., E. multinodosa Whitf. Aristozoe canadcnsis Whitf. Pa!reopaloir!,*it Murch., A. (B.) marstoni Salt., A. (B.)laticostatus "McCoy, A. (B.) rndmius Salt. Asaphus (Ptychopyge) corndensis Murch. Asaphus (Isotelus) gigas Dekay, A. (I.) ajfinis McCoy, A. (I.) homfrayi Salt. Asaphus ( Brachaspis) rectifrons Salt. Asaphus (Cryptonymus) scutalis Salt. Ogygia buchii Brong., 0. var. convexa, O. var. angustissima, O. scutatrix Salt., O. peltata Salt., O. selwynii Salt., O. ? hydrida Salt. Young (J.) Descriptive notes of several new and rare forms of Eutomostraca. In Trans. Geol. Soc. Glasgow, vol. 5, pt. 2, 1877. On new forms of Crustacea from the Silurian rocks at Girvan. In Proc. Nat. Hist. Soc. Glasgow, vol. 1, pt. 1, 1868, p. 169; also in Proc. Royal Phys. Soc. Edinburgh, vol. 4, 1878, p. 167, pi. 1. Solenocaris n. g. (not Solenocaris Meek), S. solenoides n. sp. Zenker (J. C.) Beitrage zur Naturgeschichte der Urwelt. Organische Keste (Petrefacten) aus der Alten- burger Braunkohlen -Formation, dem Blankenburger 252 CALIFORNIA ACADEMY OF SCIENCES. Quadersandstein, jenaischeii bunten Sandsteiri und bohmischen Uebergangsgebirge, mit 6 illuminirten Kup- fertafeln. Jena, 1833. Olenus longicaudatus n. sp., 0 . pyramid alls n. sp., 0. latus n. sp. Ota- rion n. g., O. diffractum n. sp., 0.? squarrosum n. sp. Conocephalus n. g., C. costatus n. sp. Ellipsocephalus n. g., E. ambiguus n. sp. The genus Olarion was made up from the head of Cyphaspis burmeisteri Barr., connected with the pygidium of Cromus beaumonti Barr. The second species, described as Otarion? squarrosum, is referred by Barrande to Cheirurus quenstedti. Zenker uses two generic names for his new genus Conocephalus, the first on p. 48 in describing the genus and the second in his description of plate 5, where he calls it Triyonocephalus. Both these generic terms had been used in natural history for other genera, the first by Thurnburg in 1812 for a genus of the Orthoptera, and the second by Oppel in 1811 for the Reptiles. The typical species described as Conocephalus costatus on p. 49, and also in the explanation of pi. 5, figs. G-K, p. 51, as Trigonocephalus costatus has been referred by Barrande to an amended genus, Conocephalites (Zenker) Barr., and the species to the older name of sulzeri. The other new genus, Ellipsocephalus, has been used by all subsequent authors, the species tak- ing the older name of Ellipsocephalus hojffi Schloth. Zeno (Franz). Von Seeversteineruiigen und Fos- silien, welche bei Prag zu finden sind. In Neue phys. Belustiguiigen, etc., vol. 1, 1770, p. 65. Continued same vol., p. 362, pi. 1, fig. 1. Under the names of Cacada or Kafermuschel Zeno describes the pygidium of Dalmanites hausmanni and the head of Phacops latifrons Bronii. Zittel (Karl A.) Handbuch der Paleeontologie. Miinchen. und Leipzig, 1881-85. The Crustacean are described in I, Band. II, Abtheilung. Ill, Lief- erung, 1885. The class is arranged in the following order: A. Entomostraca. 1, Cirripedia. 2, Copepoda. 3, Ostracoda. 4, Phyllopoda. 5, Trilobitae. B. Merostomata. 6, Xiphosura. 7, Gigaiitostraca. C. Malacostraca. 8, Phyllocarida. 9, Isopoda. 10, Amphipoda. 11, Stomatopoda. 12, Cumacea. 13, Schizopoda. 14, Decapoda. The author gives a diagonis of each genus, with numerous illustrations; also, tabulated stratigraphic distribution of the genera. Zippe (F. X.) See Sternberg (Rasper Graf von). PART II. CATALOGUE OF TRILOBITES. For the geological horizons the author has used the term "Cambrian" for the original Cambrian of Sedg- wick, 1836 (Lower Silurian, Murchison). The term " Taconic " is used for the zone with the Olenellus, Par- adoxides, Olenus and Dicellocephalus faunse. " Silurian" is used for Murchison's Upper Silurian. A SYSTEMATIC CLASSIFICATION OF THE GENERA. Agnostus Brcngniart, 1822. Hist. Crust. Foss., p. 38. Type, Agnostus pisiformis Linne. Taconic. Cambrian. Sec. 1. Parvifrontes. Type, Agnostus brevifrons Ang. Sec. 2. Lougifrontes. Type, A. punctuosus Ang. Sec. 3. Limbati. Type, A. rex Barr. (B) Fallaces. Type, A. fallax Linrs. Sec. 4. Lasvigati. Type, A. Icevigatus Dalm. Sec. 5. Arthrorhachis. Type, A. tardus Barr. Shumardia Billings, 1862. Pal. Foss., vol. 1, p. 92. Type, Shumardia granulosa Bill. Taconic. Microdiscus Eramons, 1856. Am. Geology, vol. 1, pt. 2, p. 116. Type, M. speciosus Ford. Taconic. TRINCCLEID.K. Trinucleus Lhlwyd, 1698 (Cryptolithus Green, 1832). Murchison's Silu- rian Syst., 1839, p. 659. Type, Trinucleus Jimbriatus Murcb. Cambrian . Ampyx Dalman, 1826. Palaead., p. 53. Type, Ampyx nasutus Dalm. Cambrian. Silurian. Sec. 1. Brevifrontes. Type, Ampyx nudus Murch. Sec. 2. Longifrontes. Type, A. nasntus Dalm. Sec. 3. Lonchodomas. Type, L. domains Ang. Dionidas Barrande, 1847. Neues Jahrb. fiir Mineral., 1847, pt. 4, p. 391; • Syst. Sil. Boheme, vol. 1, p. 540. Type, Dionidce formosa Barr. Cambrian. 1. Salteria Wyv. Thompson, 1864. Mem. Geol. Survey United King- dom, decade xi, pi. 7, p. 1. Type, Salteria primceva Wyv. Thorn. 2. Endyminia Billings, 1862. Pal. Foss., vol. 1, p. 93. Type, En- dyminia meeki Bill. Cambrian. 254 CALIFORNIA ACADEMY OF SCIENCES. OLENELLIDJE. Olenellus Hall, 1861. Fifteenth Kep. New York State Cab. Nat. Hist., p. 1 14. Type, Olenellus tkompsoni Hall. Twelfth Kep. New York State Cab. Nat. Hist., p. 59, figure. Taconic. PARADOXID^. Paradoxides Brongniart, 1822. Hist. Crust. Foss., p. 30. Type, Para- doxides tessini Brong. Taconic. Anopolenus Salter, 1864. Geol. Soc. London Jour., vol. 20, p. 236. Type, Anopolenus henrici Salt. Taconic. Bathynotus Hall, 1860. Thirteenth Rep. New York State Cab. Nat. Hist., p. 117. Type, Bathynotus holopuga Hall. Taconic. Dicellocephalus Owen, 1852. Kep. Geol. Survey Wisconsin, Iowa and Minnesota, p. 573. Type, Dikelocephalus minnesotensis Owen. Taconic. Dolichometopus Angeliu, 1854. Palaeont. Scand., p. 72. Type, Dolicho- metopus svecicus Aug. Palaeoiit. Scand., p. 73, pi. 37, fig. 9. Taconic. Hydrocephalus Barrande, 1846. Notice Prelim. Syst. Sil. Boheme, p. 18. Type, Hydrocephalus carens Barr. . Taconic. REMOPLEURID.E . Kemopleurides Portlock, 1843. Geol. Rep. Londonderry, etc., p. 254. Type, Remopleurides colbii Portl. OLEXID^E. Protolenus Matthew, 1892. Bull. Nat. Hist. Soc. N. B., No. 10, p. 2. Type, P. eleyans Matt. Tacouic. Oleuus Dalman, 1826. Palaead., p. 56. Type, Olenus yibbosus Wahl. Taconic. Zecanthoides Walcott, 1887. Am. Jour. Sci., 3d series, vol. 36, p. 165. Type, Olenoides spinosus Wai. Taconic. Paraboliua Salter, 1849. Mem. Geol. Survey United Kingdom, decade 2. Type, Olenus spinulosa Wahl. Taconic. Peltura Milne-Edwards, 1840. Hist. Nat. Crust., vol. 3, p. 344. Type, Olenus scarabceoides Wahl. Taconic. Cyclognathus Linnarsson, 1875. Geol. Foreniiigeiis Stockholm Forhandl., vol. 2, No. 12, p. 500. Type, Cyclognathus micropygus Linrs. Taconic. Triarthrus Green, 1832. Moil. Trilobites North America, p. 87. Type, Triarthrus beckii Green. Cambrian. Leptoplastus Angeliii, 1854. Palaeont. Scand., p. 46. Type, Leptoplaxtus stenotus Aug. Taconic. 1. Sphrerophthalmus Angeliu, 1854. Palasont. Scand., p. 49. Type, Sp hcerojyhthalmus flagellifer Ang. Taconic. 2. Cteiiopyge Linnarsson, 1880. Geol. Foreniiigeiis Stockholm Forhandl., vol. 5, p. 145. Type, Olenus (Sphwrophthalmus) pec ten Salt. Taconic. CATALOGUE OF TRILOBITES. 255 Boeckia Brogger, 1882. Die silurischen Etagen 2 uud 3, p. 122. Type, Bceckia hlrsuta Brogg. Taconic. Ceratopyge Corda, 1847. Prodr., p. 161. Type, Olenus forficula Sars. Taconic. CONOCORYPHID^:. Atops Emmons, 1844. Tacoiiic System, p. 20. Type, Tr Mobile sulzeri Schloth. Taconic. Ptychoparia Corda, 1847. Prodr., p. 26. Type, Conocephalus striatu* Emm. Taconic. Cambrian. Ctenocephalus Corda, 1847. Prodr., p. 26. Type, Ctenocephalus barrandi Cord. Taconic. Solenopleura Angeliu, 1854. Palaeont. Scand., p. 26. Type, Solenopleura holometoj>a Ang. Taconic. Liostracus Angeliu, 1854. Palreont. Scaud., p. 27. Type, Liostracus aculeatus Ang. Taconic. Aneuacauthus Angelin, 1852. Palasont. Scand., p. 5. Type, Aneuacan- thus acutangulus Ang. Anomocare Angelin, 1854. Palaeont. Scand., p. 24. Type, Anomocare aculeatus Ang. Taconic. Angelina Salter, 1847. Mem. Geol. Survey United Kingdom, decade xi. Type, Angelina sedgwicki Salt. Taconic. Agraulos Corda, 1847. Prodr., p. 26. Agraulus certicephalus Barr. Taconic. Olenoides Meek, 1877. U. S. Geol. Expl. 40th Par., vol. 4, p. 25. Type, Olenoides nevadensis Meek. Taconic. Bathyurus Billings, 1859. Canadian Naturalist, vol. 4, p. 364. Type, Asajthus extans Hall. Cambrian. Bathyurella Billings, 1865. Pal. Foss., vol. 1, p. 262. B. marginatus, B. nitidus, B. expansus Bill. Taconic. Cambrian. Chariocephalus Hall, 1863. Sixteenth Kep. New York State Cab. Nat. Hist., p. 175. Type, Chariocephalus whitfieldi Hall. Taconic. Corynexochus Angelin, 1854. Palseont. Scand., p. 59. Type, Corynexochus spinulosa Ang. Taconic. Ellipsocephalus Zenker, 1833. Beitrage Nat. Urwelt, p. 31. Type, Ellip- socephalus ambiguus Zenker=Ellipsocephalus hoffi Schloth. Taconic. Ptychaspis Hall, 1863. Sixteenth Rep. New York State Cab. Nat. Hist., p. 170. Type, Dikelocephalus minisccensis Owen. Taconic. Sao Barrande, 1846. Notice Prelim. Syst. Sil. Boherne, p. 13. Type, Sao hirsuta Barr. Taconic. BOHEMILLID.E. BohemiUa Barrande, 1872. Syst. Sil. Boheme, vol. 1, Suppl., p. 137. Type, BohemiUa stupenda Barr. Cambrian. GALTMKMIOJE. Calymene Brongniart, 1822. Crust. Foss., p. 11. Type, Calymene tuber- culata Briinn. Cambrian. Silurian. 256 CALIFORNIA ACADEMY OF SCIENCES. Homaloiiotus Koenig, 1825. Icones Foss. Sectiles, p. 7. Type, Homa- lonotus knighti Koenig. Cambrian. Silurian. Devonian. Bavarilla Barrande, 1868. Faune Sil. des environs de Hof en Baviere, p. 75. Type, Bavarilla hofensis Barr. Taconic. ASAPHIDJE. Asaphus Brongniart, 1822. Crust. Foss., p. 17. Type, Asaphus expansus Linne. Cambrian. Ptychopyge Angelin, 1854. Palasont. Scand., p. 51. Type, Ptychopyge appanata Ang. Cambrian. Brachyaspis Salter, 1866. Mon. Brit. Trilobites, p. 167. Type, Jsotelus reclifrons Portl. and Asaphus Icevigatus Ang. Cambrian. Megalaspis Angelin, 1852. Palaeont. Scand., p. 15. Type, Megalaspis gigas Ang. Cambrian. Ogygia Brongniart, 1822. Crust. Foss., p. 26. Type, Asaphus buchi Brong. Cambrian. Barrandia McCoy, 1849. Annals Nat. Hist., 2d series, vol. 4, p. 409. Type, Barrandia cordai McCoy. Cambrian. Niobe Augelin, 1852. Paleeont. Scand., p. 13. Type, Asaphus frontalis Dalm. Cambrian. Asaphellus Callaway, 1877. Quart. Jour. Geol. Soc. London, vol. 33, p. 663. Type, Asaphellus homfrayi Salt. Taconic. Nileus Dalman, 1826. Palread., p. 49. Type, Nileus armadillo Dalm. Cambrian. STYGINID.E. Styginia Salter, 1853. Kep. 22d Meeting Brit. Assoc. Adv. Sci., p. 59. Type, Asaphus lalifrons Portl. Cambrian. Illasnus Dalman, 1826. Palaead., p. 51. Type, Illcenus crassicauda Wahl.; Nova Acta Keg. Soc. Sci. Upsal., vol. 8, p. 27, pi. 2, figs. 3, 5, 6. (Not pi. 7, figs. 5, 6=Illcenus esmarki). Cambrian. Silurian. Dysplanus Burmeister, 1843. Organization Trilobites, p. 105 (Kay Soc. Ed., 1846), Type, Illcenus centrotus Dalm. Cambrian. Bumastus Murchison, 1839. Sil. Syst., p. 656. Type, Bumastus barrien- sis Murch. Cambrian. Silurian. Panderia Volborth, 1863. Mem. Acad. St. Petersburg, 7th series, vol. 6, No. 2, p. 31. Type, Panderia triquetra Volb. Cambrian. .ZEGLINIDJE. JEgliua Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 663. Type, ^glina rediviva Barr. Cambrian. ILLJENURIDJE. Illaenurus Hall, 1863. Sixteenth Kep. New York State Cab. Nat. Hist., p. 176. Type, Illcenurus quadratics Hall. Taconic. CATALOGUE OF TRILOBITES. 257 BRONTIDJE. Bronteus Goldfuss, 1843. Beitrage Petrefact., Nova Acta Physico-Med., vol. 19, p. 360. Type, Brontes flabellifer Goldf. Cambrian. Silurian. Devonian. DALMAXITID2E. Phacops Emmrich, 1839. De Trilob., etc., p. 18. Type, Phacops lalifrons Bronn. Cambrian. Silurian. Devonian. Dalmanites Emnirich, 1844. Zur Nat. Trilobiten, etc., p. 15. Barrande's Syst. Sil. Boheme, vol. suppl., p. 27. Type, Dalmanites caudata Briinn. Cambrian. Silurian. Coronura Hall, 1888. Pal. New. York, vol. 7, p. xxxii. Type, Coronura aspectens Con. Devonian. Cryphaeus Green, 1837. Am. Jour. Sci., 1st series, vol. 32, p. 343. Type, Cryphceus boothi Green. Devonian. Chasinops McCoy, 1849. Annals Nat. Hist., 2d series, vol. 4; also Contrib. to Palaeont., p. 143. Type, Calymene odini Eichw. Cambrian. CERAURHXE. Ceraurus Green, 1832 (Cheirurus Beyrich, 1845). Mon. Trilobites N. A., p. 83. Type, Ceraurus pleurexanthemus Green. Cambrian. Silurian. Devonian. SphEerexochus Beyrich, 1845. Ueber einige bohm. Trilobiten, p. 19. Type, Sphcerexochus mirus Beyr. Cambrian. Areia Barrande, 1872. Syst. Sil. Boheme, vol. 1, suppl., p. 96. Type, Areia bohemica Barr. Cambrian. Deiphon Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 814. Type, Deiphon forbesi Barr. Silurian. Placoparia Corda, 1847. Prodr., p. 128. Type, Placoparia zippi Boeck. Cambrian. Staurocephalus Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 810. Type, Staurocephalus murchisoni Barr. Cambrian. Silurian. Onycopyge Woodward, 1880. Geol. Mag., decade 2, vol. 7, p. 97. Type, Onycopyge liversidgei H. W. Cambrian. AMPHIONID.E. Amphion Pander, 1850. Beitrage Geog. Russischen Keiches, p. 439. Type, Amphion fischeri Eichw. Cambrian. Cromus Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 821. Type, Cromus intercostatus Barr. Silurian. ENCRINURIDJE. Encrinums Emmrich, 1844 (Cryptonymus Eichwald). Zur Nat. Trilobiten, p. 16. Type, Trilobus punctatus Briinn. Cambrian. Silurian. Cybele Loven, 1845. Svenska Akad. Forhandl., 1845, p. 110. Type, Calymene bellatula Dalm. Cambrian. Dindymene Corda, 1847. Prodr., p. 119. Type, Dindymene frederico- augusti Cord. Cambrian. 17 258 CALIFORNIA ACADEMY OP SCIENCES. ACIDASPID^;. Acidaspis Murchison, 1839 (Odontopleura Emmrich, 1839). Silurian Sys- tem, p. 558. Type, Acidaspis brightii Murch. Cambrian. Silurian. Devonian. LICHASID2E. Lichas Dalmau, 1826. Palasad., p. 53. Type, Lichas laciniatus Wahl. Cambrian. Silurian. Terataspis Hall, 1863. 16th Eep. New York State Cab. Nat. Hist., p. 223. Type, Lichas ( Terataspis) yrandis Hall. Devonian. PROETID^E. Proetus Steininger, 1831. Mem. Soc. Geol. France, vol. 1, p. 355. Type, Proetus cuvieri Stein. Cambrian. Silurian. Devonian. Carboniferous. Dechenella Kayser, 1880. Zeitschr. Deutsch. Geol. Gesell., Berlin, vol.32, p. 703. Type, ^Eonia verticalis Burm. Devonian. Prionopeltis Corda, 1847 (Phseton. Barr., Phaethonides Aiigelin). Prodr., p. 121. Type, Prionopeltes polydorus Cord. Devonian. Xiphogomium Corda, 1847. Prodr., p. 70. Type (X. sieberianum Cord.) Proetus loveni Barr. Silurian. Celmus Angelin, 1852. Palrcont. Scaiid., p. 23. Type, C. granulatus Ang. Cambrian. Brachymetopus McCoy, 1847. Annals Mag. Nat. Hist.. 1st series, London, vol. 20, p. 229. Type, Phillipsia maccoyi Portl. Carboniferous. Cyphaspis Burmeister, 1843. Org. Trilobiten (Eay Soc. Ed., p. 98). Phacops ceratophthalma Goldf. Cambrian. Silurian. Devonian. Arethusina Barrande, 1852. Syst. Sil. Boheme, vol. 1, p. 494. Arethusina konincki Barr. Cambrian. Silurian. Devonian. Harpides Beyrich, 1846. Untersuch. Trilobiten, p. 34. Type, Harpides hospes Beyr. Taconic. Cambrian. Cannon Barrande, 1872. Syst. Sil. Boheme, vol. 1, suppl., p. 19. Type, Carmon tnultilus Barr. Cambrian. Cyphoniscus Salter, 1852. Kep. 22d Meeting Brit. Assoc. Adv. Sci., Trans. Sec., p. 95. Type, Cyphoniscus socialis Salt. Cambrian. PHILLIPSIDJE. Phillipsinella Novak, 1885. Sitzungsber. k. bohri. Gesell. Wiss., 1885. Author's edition, p. 4. Type, Phillipsia parabola Barr. Cambrian. Phillipsia Portlock, 1843. Geol. Kep. Londonderry, etc., p. 305. Type, Phillipsia kelli Portl. = Asaphus gemmulifera Phill. Carboniferous. Permian. Griffithides Portlock, 1843. Geol. Eep. Londonderry, etc., p. 310. Type, Griffithides lonyiceps Portl. Carboniferous. HARPESID^E. Harpes Goldfuss, 1839. Nova Acta Physico-Med., vol. 19, p. 358. Type, Harpes ungula Sternb. Cambrian. Silurian. Devonian. CATALOGUE OF TRILOBITES. 259 A CATALOGUE OF NORTH AMERICAN SPECIES OF TRILOBITES. Acanlholoma Con., 1840; 3d Ann. Rep. Pal. Dept. New York Geol. Survey, p. 205. (See Acidaspis tuber culatus.) apinosa Con. (See Acidaspis tuber culatus.) ACIDASPIS Murch., Silurian System, 1839, p. 658. Cambrian and Silurian. Used as a subgroup by Clarke. Notes on the genus Acidaspis, 1892, p. 9; for species with a single large straight median spine on the occipital ring, Acidaspis brightii Murch. Ceratocephala Ward., 1838; Am. Jour. Sei., 1st series, vol. 34, p. 377. Used in the generic sense by Clarke. Notes on the genus Aci- daspis, 1892, p. 9; for species with two straight divergent spines on the occipital ring, Ceratocephala goniata Ward. Odontopleura Emm., 1839; De Tril., p. 53. Used as a subgeuus by Clarke. Notes on the genus Acidaspis, 1892, p. 9; for species having the occipital ring smooth or with central tubercle, Odontopleura ovata Emm. Arges Goldf. (in part), Neues Jahrb. fiir Mineral, 1843, pp. 544, 556. Ceraurus (Green) Loven, 1845, Kong. Svenska Vet. Akad., p. 46. Polyeris Rouault, 1846; Bull. Soc. Geol. France, vol. 4, p. 320. Selenopeltis Cord, 1847; Prodr., p. 34. Used as a subgenus by Clarke. Notes on the genus Acidaspis, 1892, p. 9; for species with confluent glabella lobes, oblique thoracic, pleural and spineless pygidium, Selenopeltis buchi Barr. Trapelocera Cord., 1847; Prodr., p. 158. Dtcranurus Con., 1841; 5th Ann. Rep. Pal. Dept. New York Geol. Survey, p. 48. Used as a subgenus by Clarke. Notes on the genus Acidaspis, 1892, p. 9; for species with two recurved spines of great size on the occipital ring, Dicranurus hamatus Conrad. Ancyropyge n. subgen. Clarke, 1892. Note on the genus Acidaspis, p. 9. Used as a subgenus to Ceratocephala, type Acidaspis roemingeri Hall. — ANCHORALIS Miller, 1875; Cincinnati Quart. Jour. Sci., vol. 2, p. 349, figs 2-4. cf. Acidaspis ceralepta. Hudson. Ceratocephala (A cidaspis) anchor alls Clarke, 1892. Note on Acidaspis, pp. 11 and 12, syn. to Ceratocephala ceralepta. armatus. (See Acidaspis eriops.) — CALLICERA Hall, 1888; Pal. New York, vol. 7, pp. 69, 224, pi. 16 b, figs. 1-3. Clarksville, N. Y. Upper Helderberg. Ceratocephala (Odontopleura) CALLICERA Clarke, 1892. Note on Aci- daspis, p. 13. Ceratocephala CERALEPTA Anth., 1838; Am. Jour. Sci., 1st series, vol. 34, p. 379; figs. 1-2. Cincinnati, Ohio. Hudson. CERALEPTA Meek, 1873; Pal. Ohio, vol. 1, p. 169, «pl. 14, figs. 8-9. 260 CALIFORNIA ACADEMY OF SCIENCES. ACIDASPIS. — CERALEPTA Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 130. Syn., Acidaspis anchoralis Miller. Ceratocephala (Acidaspis} CERALEPTA Clarke, 1892. Note on Acidaspis, p. 12. — CINCINNATIENSIS Meek, 1873; Pal. Ohio, vol. 1, p. 167, pi. 14, fig. 3. Cincinnati, Ohio. Hudson. — CINCINNATIENSIS Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 130. Ceraurus CROSOTUS Locke, 1842; Am. Jour. Sci., 1st series, vol. 44, p. 347, fig. Cincinnati, Ohio. Hudson. — CROSOTUS James, 1871; Catalogue Fossils Cincinnati Group, p. 14. — CROSOTUS Meek, 1873; Pal. Ohio, vol. 1, p. 165, pi. 14, figs. 10 a-b. — CROSOTUS Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 129. Ceratocephala (Odonto pleura) CROSSOTA Clarke, 1892. Note on Aci- daspis, p. 13. — danai Hall, 1862; GeoL Wisconsin, vol. 1, p. 432. Niagara. Acidaspis ida (Winchell and Marcy) Hall; 20th Kep. New York State Cab. Nat. Hist., p. 389. — Danai Hall, 1867; 20th Rep. New York State Cab. Nat. His., p. 333, pi. 21, figs. 8, 9. Bridgeport, 111. - Danai Hall, 1870; 20th Eep. New York State Cab. Nat. Hist., p. 423, pi. 21, figs. 8, 9 (rev. ed.) This species with A. ida are synony- mous to Acidaspis goniata. — (Terataspis) ERIOPS Hall, 1876; Illus. Devonian Foss. Crust., pi. 19, figs. 4-7, 10, 11, 12. (See Lichas (Conolichas) eriops Hall.) Scho- harie, N. Y. Upper Helderberg. — FIMBRIATA Hall, 1879; Description of New Species from the Niagara Group, p. 20. Waldron, Ind. Niagara. — FIMBRIATA Hall, 1882; Trans. Albany Inst., vol. 10, p. 76. — . FIMBRIATA Hall, 1883; llth Eep. Geol. Nat. Hist. Indiana, p. 334, pi. 33, fig. 11. — (Terataspis} GRANDIS Hall, 1876; Illus. Devonian Foss. Crust., pi. 17, figs. J-8; pi. 18, figs. 1-4. (See Lichas (Terataspis} grandis Hall.) Schoharie, N. Y. Ceratocephala goniata Ward., 1838; Am. Jour. Sci., 1st series, vol. 34, p. 377. • Ceratocephala goniata Clarke, 1892; Note on Acidaspis, p. 12. Niagara. The original species was from Springfield, Ohio; Clarke places as syn. A. danai Hall and A. ida from Bridgeport, 111. — HALLI Shum., 1855; 1st and 2d Kep. Geol. Survey Missouri, pt. 2, p. 200, pi. B, figs. 7 a, b, c. Cape Girardeau County, Missouri. Silurian. Ceratocephala (Odontopleura) HALLI Clarke, 1892. Note on Acidaspis, p. 13. CATALOGUE OF TRILOBITES. 261 ACIDASPIS. Dicranurus HAMATA Con., 1841; 5th Ann. Rep. Pal. Dept. New York Geol. Survey, p. 39, pi. 1, tig. 1. Albany and Schoharie counties. Lower Helderberg. - (Dicranurus) HAMATA Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., pi. 2, fig. 1. Republication of pi. 2, 5th Ann. Rep. Pal. Dept. New York Geol. Sur. - HAMATA Hall, 1859; Pal. New York, vol. 3, p. 371, pi. 79, figs. 15-19. - HAMATA M. & W., 1868; Geol. Survey Illinois, vol. 3, p. 390, pi. 7, fig. 17. Ceratocephala (Dicranurus) HAMATUS Clarke, 1892. Note on Acidaspis, p. 13. - HORANI Bill., 1863; Geol. Sur. Canada, p. 190, fig. 190. Bay of St.' Paul, St. Lawrence River and Canada. Trenton. - tda W. & M., 1865; Mem. Boston Soc. Nat. Hist., vol. 1, p. 106, pi. 3, tig. 13. See Acidaspis goniata. — O'XEALLI Miller, 1875; Cincinnati Quart. Jour., vol. 2, p. 86, fig. 9. Near Lebannon, Ohio. Hudson. Ceratocephala (Odontopleura) O'NEALLI Clarke, 1892. Note on Aci- daspis, p. 13. — ORTOXI Foerste 1887; Bull. Denison Univ., vol. 2, p. 90, pi. 8, fig. 1. Near New Carlisle, Ohio. Clinton. Ceratocephala (Odontopleura) ORTONI Clarke, 1892. Note on Acidaspis, p. 13. — PARVTJLA Wai., 1877; Advanced sheets 31st Rep. New York State Mus., p. 16. Trenton Falls, N. Y. Trenton. - PARVULA Wai., 1879; 31st Rep. New York State Mus., p. 69. Ceratocephala (Odontopleura) PARVULA Clarke, 1892. Note on Aci- daspis, p. 13. — ROMLSGERI Hall, 1888; Pal. New York, vol. 7, pp. 71, 224, pi. 16 b, figs. 15-18. Little Traverse Bay, Mich. Used for the type of the subgenus Ancyropyge Clarke, 1892. Note on Acidaspis, p. 10. Hamilton. *piniger. (See Bathyurus spiniger.) - TREXTOXENSIS Hall, 1847; Pal. New York, vol. 1, p. 240, pi. 64, figs 4 a-f. Bay of Quinta on Lake Ontario. Trenton. — TREXTOXEXSIS Emmons, 1855; American Geology, vol. 1, p. 216, fig. 73. Ceratocephala (Odontopleura) TREXTONENSIS Clarke, 1892. Note on Acidaspis, p. 13. — TUBERCCLATUS Con., 1840; 3d Ann. Rep. Pal. Dept. New York Geol. Survey, p. 205. Lower Helderberg. Syn., Acantholoma Con., 1840; 3d Ann. Rep. Pal. Dept. New York Geol. Survey, p. 205, fig. 3. Acantholoma spinosa Con., 4th Ann. Rep. Pal. Dept. New York Geol. Survey, p. 39, pi. 1, fig. 3. 262 CALIFORNIA ACADEMY OF SCIENCES. ACIDASPIS. AGNOSTUS. — TUBERCULATUS Hall, 1859; Pal. New York, vol. 3, p. 368, pi. 79, figs. 1-14. Albany and Schoharie counties, N. Y. — TUBERCULATUS Hall, 1861; 15th Kep. New York State Cab. Nat. His., pi. 2, fig. 3. Ceratocephala (Acidaspis) TUBERCULATUS Clarke, 1892. Note 011 Aci- daspis, p. 13. AGLASPIS Hall, 1862; Canadian Naturalist, vol. 7, p. 445, figure. Hall, 1863; 16th Eep. New York State Cab. Nat. Hist., p. 181. - BARRANDI Hall, 1863; 16th Kep. New York State Cab. Nat Hist., p. 181, pi. 11, figs. 7-16. Miniska, Minn., and Mazomaiiia, Wis. Taconic. - EATONI Whit., 1880; Ann. Rep. Geol. Survey, Wisconsin, p. 52. - EATONI Whit., 1882; Geol. Wisconsin, vol. 4, p. 192, pi. 10, fig. 11. Lodi, Wis. Taconic. Arctinurm De Castelnau, 1843; Sil. Syst. de 1'Amerique, p. 21. (See Lichas boltoni.) AGNOSTUS Brong., 1822; Hist. Nat. Crust. Foss., p. 38. Taconic. Cambrian. Syn., Battus Dalm., 1826; Palaead., p. 33. Trinodus McCoy, 1846; Sil. Foss. Ireland, p. 56. Phalacroma Cord, (in part), 1847; Prodr., p. 158. Mesospheniscus Cord., 1847; Prodr., p. 46 (Agnostus integer). Diplorrhina Cord., 1847; Prodr., p. 46. Condylopyge Cord., 1847; Prodr., p. 50 (Agnostus rex}. Lejopijge Cord., 1847; Prodr., p. 51 (Agnostus laivigatus). Arthrorhachis Cord., 1847; Prodr., p. 114 (Agnostus tardus). Peronopsis Cord., 1847; Prodr., p. 115 (Agnostus integer). PleurocteniumCord., 1847; Prodr., p. 116 (Agnostus granulatus) . Sec. 1. PARVIFRONTES. The glabella is only partly developed in this section. Type Agnostus brevifrons Ang. Sec. II. LOXGIFRONTES. This section is distinguished by its strongly projecting glabella and also by the axis of the pygidium, which is generally moderately long. Crust smooth. The cheeks grooved. The crust on the cheeks and pygidium is provided with raised points. Limb generally narrow. The cheeks in front of the glabella and side lobes of the pygidium, behind the axis, divided by a groove. Type Agnostus punctuosus Ang., A. pistformis Linne. Sec. III. LIMBATI. General form subquadrate, head has a broad limb, basal lobes large. The cheeks in front of the glabella are not divided by a central groove or grooved at the sides. The pygidium is usually produced into lateral spines. Type Agnostus rex Barr. Series A (REGII). Distinguished by its broad limb, diminishing cheeks and side lobes of the pygidium. Both the anterior lobe of the glabella and the posterior lobe of the pygidium expand. Type Agnostus rex Barr. CATALOGUE OF TRILOBITES. 263 AGNOSTUS. Series B (FALLACES). This series has a smaller head, and moderately broad limb. Cheeks large; basal lobes rather large with a broad posterior lobe to the axis of the pygidium. Type Agnostus fallax Linrs . Sec. IV. LJEVIGATI. The dorsal grooves marking the glabella and axis of the thorax and pygidium are wanting, or faintly indicated. Crust smooth, sometimes with slight indications of strife. Limb on the head disappearing; on the pygidium it becomes broad. Type, Agnostus Icevigatus Dalm. Sec. V. ARTHRORHACHIS. The glabella is prominent, long and marked with small basal lobes; the axis of the pygidium is short, as in Agnoatus tardus Barr. — ACADICUS Hartt, 1868; Acadian Geology, p. 655, fig. 229 (3d ed.) St. John, N. B. Taconic. Syn., similis Hartt, 1868; Acadian Geology, p. 656, (3d. ed.) similis Hartt (Walcott), 1884; Bull. U. S. Geol. Survey, No. 10, p. 22. - ACADICUS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 22, pi. 2, figs. 2, 2 a, c. — ACADICUS Vogd., 1892; American Geol., vol. 4, p. 386, pi. 9, fig. 7. Sec. Limbati. — ACADICUS var. DECLIVIS Matt., 1885; Trail. Koyal. Soc. Canada, vol. 3, p. 70, pi. 7, figs. 6 a-b. St. John. — ACADITUS var. DECLIVIS, Vogd., 1892; American Geol., vol. 4, p. 387, pi. 9, fig. 8. Sec. Limbati. - ACUTILOBUS Matt., 1885; Trans. Koyal Soc. Canada, vol. 3, p. 73, pi. 7, fig. 10. St. John. - ACUTILOBUS Vogd., 1892; American Geol., vol. 4, p. 384, pi. 9, fig. 1. Sec. Longifrontes. — AMERICANUS Bill., 1860; Canadian Naturalist, vol. 5, p. 302, fig. 1. Point Levis, Quebec. Tacouic. — AMERICANUS Bill., 1865; Pal. Foss., vol. 1, p. 395, fig. 372. — AMERICANUS Brogg., 1886; Geol. Foren. Stock. Forhandl., vol. 8, p. 207. cf. Agnostus punctuosus Ang. var. — AMERICANUS Vogd., 1892; American Geol., vol. 4, p. 389, pi. 9, fig. 5. Sec. Longifrontes. — BISECTUS Matt., 1891; Trans. Koyal Soc. Canada, vol. 9, p. 50, pi. 13, figs. 2 a b. Navy Island, St. John, N. B. Taconic. - BIDENS Meek, 1873; 6th Ann. Rep. U. S. Geol. Survey Territories, p, 463. Gallatin City, Montana. Taconic." - BIDENS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 26, pi. 9, figs. 13, 13 a. — BIDENS Brogg., 1866; Geol. Foren. Stock. Forhandl., vol. 8, p. 207. cf. Agnostus par v if rons Linrs. 264 CALIFORNIA ACADEMY OF SCIENCES. AGNOSTUS. - BIDEXS Vogd., 1892; American Geol., vol. 4, p. 392, pi. 10, fig. 5. Sec. Limbati. — CANADENSIS Bill., I860; Canadian Naturalist, vol. 5, p. 304, fig. 3. Point Levis, Quebec. Taconic. — CANADENSIS Bill.; 1865; Pal. Foss., vol. 1, p. 397, fig. 374. " — CANADENSIS Brogg., 1886; Geol. Fdreii. Stock. Forhaiidl., vol. 8, p. 207. cf. Agnostus hybridus Brogg. — CANADENSIS Vogd., 1892; American Geol., vol. 4, p. 390, pi. 9, fig. 9. Sec. Longifrontes. — COLORADOENSIS Shum., 1861; Am. Jour. Sci., 2d series, vol. 32, p. 218. Burnet County, Texas. Taconic. — COLORADOENSIS Vogd., 1892; American Geol., vol. 4, p. 390, pi. 9, fig. 16. cf. Aynostus neon. — COMMUNIS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 228, pi. 1, figs. 28, 29. White Pine, Nevada. Taconic. — COMMUNIS Wai., 1884; Pal. Eureka Disk, Mon. U. S. Geol. Survey, vol. 8, p. 27. — COMMUNJS Brogg., 1866; Geol. Foreii. Stock. Fdrhaudl., vol. 8, p. 207. cf. Agnostus cyclopyge Tullb. Oleiius zone. — COMMUNIS Vogd., 1892; American Geol., vol. 4, p. 390, pi. 9, fig. 15. Sec. Longifrontes. - DESIDERATUS Wai., 1889; Proc. Natl. Mus., vol. 12, p. 39. Salem, N. Y. Taconic. — DESIDERATUS Wai., 1891; 10th Hep. U. S. Geol. Survey, p. 629, pi. 80, fig. 5. Olenellus zone. - DESJDERATUS Vogd., 1892; American Geol., vol. 4, p. 383, pi. 10, fig. 7. Sec. Parvifrontes. - DISPARLIS Hall, 1863; 16th Kep. New York State Cab. Nat. Hist., p. 179, pi. 10, figs. 25-27. Oseola Mills, Wis. Taconic. - DISPARLIS Vogd., 1892; American Geol., vol. 4, p. 394, pi. 10, fig. 15. Sec. Laevigati. -FABIUS Bill., 1865; Pal. Foss., vol. 1, p. 298, fig. 289. Table Head and Pistolet Bay, N. F. Cambrian? — FABIUS Vogd., 1892; American Geol., vol. 4, p. 396, pi. 9, fig. 10. Sec. Arthrorhachis. — GLABBA Bill., 1865; Pal. Foss., vol. 1, p. 297, fig. 288. Table Head and Pistolet Bay, N. F. Cambrian? — GLABBA Vogd., 1892; American Geol., vol. 4, p. 395, pi. 9, fig. 6. Sec. Arthrorhachis. — INTERSTRICTUS White, 1874; Prelim. Kept. Invert. Foss., p. 7. Ante- lope Springs, Utah. Taconic. - INTERSTRICTUS White, 1877; U. S. Geog. and Geol. Survey W. 100th Meridian, p. 38, pi. 2, figs. 5 a, 5 b. - INTERSTRICTUS Wai., 1886, Bull. U. S. Geol. Survey, No. 30, p. 149 pi. 16, figs. 6, 6 a. CATALOGUE OF TRILOBITES. 265 AGNOSTUS. - INTERSTRICTUS Wai., 1888; Am. Jour. Sci., 3d series, vol. 36, p. 166. — INTERSTRICTUS Brogg., 1866; Geol. Foren. Stock. Forhandl., vol. 8, p. 207 cf. Agnostus fallax Linrs. Paradoxides zone. - INTERTRICTUS Vogd., 1892; American Geol., p. 393, pi. 10, fig. 6. Sec. Limbati. - sp.? Eominger, 1887; Proc. Acad. Nat. Sci. Phila., p. 18. - JOSEPHA Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 178, pi. 6, figs. 54, 55. Lake Pepin, Wis. Taconic. — JOSEPHA Vogd., 1892; American Geol., vol. 4, p. 391, pi. 9, fig. 17. Sec. Longif routes. lobatus Hall. (See Microdiscus lobatus.) — MALADENSIS Meek, 1873; 6th Annual Rep. U. S. Geol. Survey Ter- ritories, p. 464. Malade City, Utah'. Taconic. maladensis Vogd., 1892; American Geol., vol. 4, p. 392. This species is a syn. of Agnostus josepha Hall. - neon H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 229, pi. 1, figs. 26, 27. Eureka, Nevada. Taconic. - neon Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 27. See Agnostus color adoensis. - nobilis Ford, 1872; Am. Jour. Sci., 3d series, vol. 3, p. 421, figs. 1, 2. Troy, N. Y. Taconic. — nobilis Wai., 1886; Bull. U S. Geol. Survey, No. 30, p. 150, pi. 16, fig. 7. - ? nobilis Wai., 1891; 10th Rep. U. S. Geol. Survey, p. 629, pi. 80, fig. 7, 7 a. Olenellus zone. - nobilis Vogd., 1892; American Geol., vol. 4, p. 383. Probably a Microdiscus. — OBTCSILOBUS Matt., 1888; Trans. Roy. Soc. Canada, vol. 3, p. 72, pi. 7 fig. 9. Porter's and Hanford brooks, St. Martins. OBTUSILOBUS Vogd., 1892; American Geologist, vol. 4, p. 385, pi. 9, fig. 3. Sec. Longifrontes. St. John. Paradoxides zone. - ORION Bill., 1860; Canadian Naturalist, vol. 5, p. 304, fig. 2. Point Levis, Quebec. Taconic. — ORION Bill., 1865; Pal. Foss., vol. 1, p. 397, fig. 393. — ORION Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 105. — ORION Vogd., 1892; American Geol., vol. 4, p. 391, pi. 9, fig. 12. Sec. Longifrontes. This species differs from A. pisiformis by the absence of the median node, which may be due to its state of preservation. Syn. of A. pisiformis Linne. — PARILIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 179, pi. 11, figs. 23, 24. Lake Pepin, Wis. Taconic. PARILIS Brogg., 1886; Geol. Foren. Stock. Forhandl, vol. 8, p. 207. cf. Agnostus tovigatus Dalm. and A. nudus Beyr. Paradoxides zone. 266 CALIFORNIA ACADEMY OP SCIENCES. AGNOSTUS. PARILIS Vogd., 1892; American Geol., vol. 4, p. 394, pi. 10, fig. 4. Sec. Laevigati. - PARTITUS Matt., 1888; Trans. Hoy. Soc. Canada, vol. 3, p. 68, pi. 7, fig. 2a-b. — PISIFORMIS (Linne) Matt., 1891; Trans. Hoy. Soc. Canada, vol.9, p. 59, pi. 13, fig. 1 a-b. (Variety.) St. John. - PROLONGUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 230, pi. 1, figs. 30, 31. Eureka, Nevada. Taconic. - PROLONGUS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 28. - PROLONGUS Brogg., 1886; Geol. Foren Stock. Forhandl, vol. 8, p. 207. cf. Agnostus nudus Beyr. var. — PROLONGUS Vogd., 1892; American Geol., vol. 4, p. 394. pi. 10, fig. 10. Sec. Luevigati. — REGULARIS Matt., 1888; Trans. Koy. Soc. Canada, vol. 3, p. 67, pi. 7, fig. 1 a-c. Portland. Haiiford and Porter's brooks, etc. — REGULARIS Vogd., 1892; American Geol., vol. 4, p. 387, pi. 10, fig. 11. St. John. Sec. Limbati. - richmondensis Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 24, pi. 9, fig. 10. Prospect Mountain, Nevada. Syn. AGNOSTUS AMERICANUS Vogd., 1892; American Geol., vol. 4, p. 392, pi. 9, fig. 11. - RICHMONDENSIS Brogg., 1886; Geol. Foreii Stock. Forhandl, vol. 8, p. 207. cf. Agn. nathorsti Brogg. - SECLURUS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 25, pi. 9, fig. 14. Secret Canon, Nevada. Taconic. — SECLURUS Brogg., 1886; Geol. Foren Stock. Forhandl, vol. 8, p. 207. cf. A gnostus parvifrons Linrs . Paradoxides zone. - SECLURUS Vogd., 1892; American Geol., vol. 4, p. 395, pi. 10, fig. 16. — TESSELLA Matt., 1888; Trans. Kay. Soc. Canada, vol. 3, p. 71, pi. 7, figs. 7, 7 a-b. Porter's brook, St. Martins. — TESSELLA Vogd., 1892; American Geol., vol. 4, p. 385, pi. 9, fig. 4. Agnostus tessella is a Brevifroiis with an indistinct anterior lobe to the glabella. - UMBO Matt., 1888; Trans. Eoy. Soc. Canada, vol. 3, p. 71, pi. 7, fig. 8, 8 a-b. Porter's brook. - UMBO Vogd., 1892; American Geol., vol. 4, p. 387, pi. 10, fig. 9. Sec. Par vif routes. — VIE Matt., 1888; Trans. Eoy. Soc. Canada, vol. 3, p. 69, pi. 7, fig. 3. Portland and Hanford brook, etc. — also, var. CONCINNUS, p. 70, pi. 7, figs. 4, 4 a-c. Taconic. - VIE Vogd., 1892; American Geol., vol. 4, p. 388, pi. 10, fig. 14. Sec. Lirnbati. — also, var. CONCINNUS, p. 389, pi. 9, fig. 13. — similis Hartt. (See Agnostus acadicus.) CATALOGUE OF TRILOBITES. 267 AGNOSTUS. AGRAULOS. - TUMIDOSUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 231, pi. 1, fig. 32. Eureka, Nevada. Taconic. — TUMIDOSUS Brogg., 1886; Geol. Foren Stock. Forhandl, vol. 8, p. 207. cf. Agnostus quadratus Tullb. Paradoxides zone. — TUMIDOSUS Vogd., 1892; American Geol., vol. 4, p. 393, pi. 10, fig. 8. Sec. Limbati. AGRAULOS Cord., 1847; Prodr., p. 23. Tacouic. Syn., Arion Barr., 1846; Notice Prelim., p. 13. Ellipsocephalus Barr., 18*6; Notice Prelim., p. 12 (not Ellipso- cephalus Zenk. or Elliptocephalus Emm.) Arionellus Barr., 1852; Syst. Sci. Boheme, p. 404. — AFFINIS Bill., 1874; Pal. Foss., vol. 2, p. 72. Branch St. Mary's Bay, N. F. Taconic. - AFFINIS Matt., 1886; Trans. Royal Soc. Canada, vol. 2, p. 153, figs. 2, 2a-b. - ? articephalus Matt., 1885; Trans. Roy. Soc. Canada, vol. 3, p. 75, pi. 7, figs. 14, a-b. Hanford Brook, St. Martin's. St. John Group. (See Ellipsocephalus anticephalus.) Arionellus BIPUNCTATUS Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 101. Lawrence Creek, Minnesota. Taconic. Arionellus BIPUNCTATUS Hall., 1863; 16th Rep. New York State Cab. Nat. Hist,, p. 169, pi. 7, figs. 50-57. Arionellus (Agraulos) CONVEXUS Whitf., 1878; Ann. Rep. Geol. Sur- vey Wisconsin, 1877, p. 57. Ironton, Sank county, Wis. Tacouic. Arionellus CONVEXUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 190, pi. 1, fig. 17. Arionellus cylindricus Bill., 1860; Canadian Naturalist, vol. 5, p. 314, fig. 14. Point Levis, Quebec. Arionellus cylindricus Bill., 1865; Pal. Foss., vol. 1, p. 406, fig. 385. (See Ptychaspis cylindricus.) - ? GLOBOSUS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 61, pi. 9, fig. 23. Eureka, Nevada. Taconic. — (Strenuella ?) HALLIANUS Matt., 1887; Trans. Roy. Soc. Canada, vol. 5, p. 132, pi. 1, fig. 2. Portland, Simonds and St. Martin's. St. John Group. — ? HOLOCEPHALUS Matt., 1890; Trans. Roy. Soc. Canada, vol. 8, p, 138, pi. 11, fig. 5, 5 a-d. Torryburn Cove, Kennebecasis. St. John Group. — OWENI Meek and Hayden, 1861; Proc. Acad. Nat. Sci. Phila., 1861, p. 436. Head of Powder River, Big Horn Mts. The species was also referred to the genera Arionellus and Crepicephalus. Taconic. Arionellus OWENI Meek and Hayden, 1862; Am. Jour. Sci., 2d series, vol. 33, p. 74. 268 CALIFORNIA ACADEMY OF SCIENCES. AGKAULOS. ArionelhiR OWEXI Meek and Haydeu; Pal. Upper Missouri, p. 9, figs. a, b, c, pi. 1, fig. 4. Kef erred by Walcott, 1884, Pal. Eureka Dist., Moii. U. S. Geol. Survey, vol. 8, p. 55, pi. 10, to Pty- chopctria oweni. Arionellus (Bathyurus) PLAXUS Shuiii., 1861;. Am. Jour. Sci., 2d series, vol. 32, p. 219. Morgan's Creek, Burnet county, Texas. Taconic. Arionellus PUSTULATUS Wai., 1877; Advanced sheets 31st Kep. New York State Mus. Nat. Hist., p. 15. Chazy, N. Y. Arionellus PUSTULATUS Wai., 1877; 31st Eep. New York State Mus. Nat. Hist., p. 68. Arionellus QUADRAXGULARIS Whit., 1884; Bull. Mus. Nat. Hist, New York, vol. 1, p. 147, pi. 14, fig. 8. Braintree, Mass. Taconic. — QUADRAXGULARIS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 48, pi. 7, fig. 1. - REDPATHI Wai., 1891; 10th Eep. U. S. Geol. Survey, p. 654, fig. 69. St. Simoiids, Quebec. Taconic. — SOCIALIS Bill., 1874; Pal. Foss., vol. 2, p. 71 fig. 40. Chapel Arm., Trinity Bay, N. F. Taconic. — SOCIALIS Bill., 1882; Rep. of Progress Geol. Survey Newfoundland, p. 10, fig. 4. — SOCIALIS Matt., 1886; Trans. Eoyal Soc. Canada, vol. 2, p. 151, fig. 1 a-b. — STRENUUS Bill., 1874; Pal. Foss., vol. 2, p. 71, fig. 41. Topsail Head and Brigus, Conception Bay. Taconic. — STRENUUS Bill., 1882; Eep. of Progress Geol. Survey of Newfound- land, p. 10, fig. 5. - STREXUUS Matt., 1886; Trans. Eoyal Soc. Canada, vol. 2, p. 153, figs. 3, 3 a-b. — STRENUUS Wai., J891; 10th Eep. U. S. Survey, p. 655, pi. 96, figs. 1 a-c; also, var. nasutus, p. 654, pi. 97, figs. 2, 2 a-c. Olenellus zone. Walcott refers Ptychoparia mucronatus S. & F. to this species. Matthew uses the species for the type of the subgenus Strenuella, Trans. Eoy. Soc. Canada, 1886, p. 154. — subclavatus Bill. (See Ptychaspis subclavatus.) Arionellus (Bathyurus) TEXANUS Shum., 1861; Am. Jour. Sci., 2d series, vol. 32, p. 218. Clear Creek, Burnet County, Texas. Taconic. Arionellus TRIPUXCTATUS Whitf., 1876; Eep. Eecoii. Upper Missouri, p. 141, pi. 1, figs. 3-5. Moss Agate Springs near Camp Baker, Montana. Taconic. — ? WHITFIELDIANUS Matt., 1887; Trans. Eoy. Soc. Canada, vol. 5, p. 130, pi. 1, figs. 1, 1 a-f. CATALOGUE OF TRILOBITES. 269 AGRAULOS. AMPYX. — ? WHITFIELDIANCS Matt., 1890; Trans. Roy. Soc. Canada, vol. 8, p. 138, pi. 11, figs. 6, 6 a-e? Div. 1, c. 1. St. John group. — (Bathyurust] WOOSTERI Whitf., 1878; Ann. Rep. Geol. Survey Wis- consin, 1877, p. 56. Ettrick and Eau Claire, Wis. Taconic. — (Bathyurus^) WOOSTERI Whitf., 1882; Geol. Wisconsin, vol. 4, p. 189, pi. 1, figs. 19-21. AMPHIOX Pand., 1830; Beitrage zur Geol. russischen Reiches, p. 139. Cambrian. - BARRAXDI Bill., 1865; Pal. Foss., vol. 1, p. 288, fig. 277. Point Rich, Table Head, etc., N. F. — CANADENSIS Bill., 1859; Can. Nat., vol. 4, p. 381, fig. 12, a, b. Chazy Limestone, Mingan Islands. — CANADEXSIS Bill., 1863; Geol. Survey Canada, p. 133, fig. 69. — CANADENSIS Bill., 1865; Pal. Foss., vol. 1, p. 288, fig. 278. — COXVEXUS Bill., 1865; Pal. Foss., vol. 1, p. 322. Stanbridge, range 6, lot 20. - IXSULARIS Bill., 1865; Pal. Foss., vol. 1, p. 290. Port aux Choix, N. F. — JULIUS Bill., 1865; Pal. Foss., vol. 1, p. 290,fig. 279. Cow Head, N. F. - MATUTIXA Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 222, pi. 5 a, fig. 6. Trempaleau, Wis. Taconic. multisegmentatus. (See Encrinurus multisegmentatus.) — NEVADEXSIS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 94, pi. 12, fig. 13. Belle vue Peak, etc., Eureka District, Nevada. Cambrian. — SALTERI Bill., 1861; Canadian Naturalist, vol. 6, p. 322, fig. 6. Town- ship of Oxford, Canada. Calciferous. — SALTERI Bill., 1865; Pal. Foss., vol. 1, p. 352, fig. 399. — WESTOXI Bill., 1865; Pal. Foss., vol. 1, p. 321, fig. 307. Stanbridge, range 6, lot 20. AMPYX Dalrn., 1826; Palaead., p. 53 (German edition.) Cambrian. Silurian. — AMERICANUS Saff. and Vogd., 1889; Proc. Phila. Acad. Nat. Sci., p. 166, fig. Near Bull's Gap on the road to Russelville, Tenu. Trenton. — AMERICANUS Vogd., 1893; American Geol., vol. 11, p. 106, fig. 4. - HALLI Bill., 1861; Pal. Foss., vol. 1, p. 24, figs. 25, a, b, c. - HALO Bill., 1862; Geol. Survey Vermont, vol. 2, p. 959, fig. 365. Chazy Limestone. St. Dominique, Canada, and Highgate Springs, Vt. — HALLI Vogd., 1893; American Geol., vol. 11, p. 106, fig. 5. — L^VIUSCULUS Bill., 1865; Pal. Foss., vol. 1, p. 295, fig. 285. Table Head, N. F. - XORMALLIS Bill., 1865; Pal. Foss., vol. 1, p. 295, fig. 286. Table Head and Pistolet Bay, N. F. — XORMALLIS Vogd., 1893; American Geol., vol. 11, p. 107, fig. 6. 270 CALIFORNIA ACADEMY OF SCIENCES. AMPYX. ANOMOCARE. — BUSTILIUS Bill., 1865; Pal. Foss., vol. 1, p. 296. 4 miles NE. from Portland Creek, N. F. - RUSTILIUS Vogd., 1893; American Geol., vol. 11, p. 108. — SEMICOSTATUS Bill., 1865; Pal. Foss., vol. 1, p. 297, fig. 287. Table Head and Pistolet Bay, 4 miles NE. from Portland Creek, N. F. This species differs so slightly from A. rustilius, which occurs in the same bed, that the author hints that they should be united under A. rustilius. — SEMICOSTATUS Vogd., 1893; American Geol., vol. 11, p. 108, fig. 6. ANGELINA Salt., 1864; Mem. Geol. Survey United Kingdom, decade xi, pi. 7. Type, Angelina sedgwicki Salt. Taconic. - hitchcocki Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 148, pi. 14, fig. 13. (See Protypus hitchcocki.) Baintree, Mass. ANOMOCARE Aug., 1852; Palseont. Scand., p. 24. Taconic. ANOMOCARE CHIPPEWAENSIS. Lonchocephalus CHIPPEWAENSIS Owen, 1852; Eep. Geol. Survey Wisconsin, Iowa and Minnesota, p. 576, pi. 8, figs. 6, 14; pi. 1 a, fig. 9. Ked Cedar or Menomouie branch of the Chippewa. Conocephalites CHIPPEWAENSIS (Owen) Shumard, 1863; Trans. St. Louis Acad. Sci., vol. 2, p. 104. Lonchocephus HAMULUS Owen, 1852; Geol. Survey Wisconsin, Iowa and Minnesota, p. 576, pi. 1 a, figs. 8-12. Near the mouth of the Miniskah Kiver at Mountain Island. — undet. Trilobite, Owen, 1848; Geol. Keconnoissance Chippewa Land Dist., p. 15, pi. 7, fig. 5. Conocephalites HAMULUS Shum., 1863; Acad. Sci. St. Louis, vol. 2, p. 104. Conocephalites HAMULUS Hall, 1863; 16th Kep. New York State Cab. Nat. Hist., p. 166, pi. 7, figs. 43, 44; pi. 8, figs. 25, 26. — HAMULUS Dames, 1884; China (Eichthofen), vol. 4, p. 24. Conocephalites PATERSONI Hall, 1863; 16th Kep. New York State Cab. Nat. Hist., p. 159, pi. 7, figs. 45, 46. Trempleau, Wis. Dicello- cephalus zone. — PATERSONI Dames, 1884; China (Kichthofeii), vol. 4, p. 24. --?PARVUM Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 59, pi. 9, fig. 17. West slope of Prospect Mountain, Eureka District, Nev. Olenellus zone. — ? PARVUM Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 209, pi. 25, fig. 1. - ? PARVUM Wai., 1890; 10th Kep. U. S. Geol. Survey, p. 653, pi. 96, fig. 2. Prof. Matthew in a letter to the author says: "The long prominent glabella and volutted frontal limb, with furrows between it and the glabella, are characters of Strenuella; also, the prominent eye lobes and strong occipital ring." CATALOGUE OF TRILOBITES. 271 AXOMOCARE. ASAPHISCUS. — SPINIGER Matt., 1891; Trans. Royal Soc. Canada, vol. 9, p. 61, pi. 13, tig. 4 a-e. Long Island, Kennebecasis River. Referred to Lep- toplastus spiniger, Can. Rec. Sci., October, 1889. — STENOTOIDES Matt., 1891; Trans. Royal Soc. Canada, vol. 9, p. 61, pi. 13, figs. 3 a-d. Referred to Leptoplastus in Can. Rec. Sci., Oct., 1889. Long Island, Kennebecasis River. St. John group. Crepicephalust WISCONSENSIS Owen, 1852; Rep. Geol. Survey Wis- consin, Iowa and Minnesota, pi. 1, fig. 13. (The upper figure only; the other figured specimen belongs to Dicellocephalm granu- losus.) Crepicephalus WISCONSEXSIS Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 103. Conocephaliles WISCONSEXSIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 164, pi. 7, figs. 39-41; pi. 8, figs. 22, 23, 24, 27, 28. Trempleau, Wis., mouth of Chippewa River jn Minnesota. Syn., Dikelocephalus latifrons (Shum.) Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 165, pi. 7, tig. 40. — WISCONSEXSIS Dames, 1884; China (Richtofen), vol. 4, p. 24. Dicello- cephalus zone. ANOPOLENUS Salt., 1864; Geol. Mag., vol. 1, p. 236. - VENUSTUS Bill., 1874; Pal. Foss., vol. 2, p. 73, fig. 42. Chapel Arm, Trinity Bay, N. F. Taconic. VENUSTUS Bill., 1882; Report of Progress Geol. Newfoundand, p. 11, fig. 6. Paradoxides zone. ARETHUSINA Barr., 1852; Syst. Sil. Boheine, vol. 1, p. 493. Cambrian. Silurian. Devonian. — AMERICANA Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 62, pi. 9, fig. 27. Eureka District, Nevada. Upper Cambrian of Walcott's classification. Arges. (See Lichas.) ARGES, subgenus Lichas Hall, 1888; Pal. New York, vol. 7, p. Ix. phlyctanodes Green. (See Lichas phlyctanodes.) Arionellus. (See Agraulos.) ASAPHISCUS Meek, 1873; 6th Ann. Rep. U. S. Geol. Survey Territories, p. 485 (foot-note). Bathyurellus (Asaphiscus) BRADLEYI Meek, 1873; 6th Ann. Rep. U. S. Geol. Survey Territories, p. 484. Malade City, Utah. Taconic. - BRADLEYI Meek, 1873; 6th Ann. Rep. U. S. Geol. Survey, Territories, p. 485. — WHEELERI Meek, 1873; 6th Rep. U. S. Geol. Survey Territories p. 485 (foot-note). Antelope Springs, Utah. Taconic. - WHEELERI White, 1875; Geog. and Geol. Survey West 100th Meridian, vol. 4, p. 43, pi. 2, figs. 1 a-f. - WHEELERI Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 220, pi. 31, figs. 3, 3 a. 272 CALIFORNIA ACADEMY OP SCIENCES. ASAPHUS Brong., 1822; Hist. Nat. Crust. Foss., p. 18, pi. 2, fig. 1 a, b. Cambrian. Syn., Cryptonymus Eich., 1825; (in part) not Cryptonymus Eichw., 1840. Isotelus Dekay, 1822; Annals Lyceum Nat. Hist. New York, vol. 1, p. 174. Hemicrypturus Green, 1832; Mon. Tril. North America, p. 20. — acantholeurus. (See Dalmanites acantholeurus.) ALACER Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 26, fig. 9. Charleton Point. Hudson. — aspectans. (See Dalmanites aspectans.) — ASTRAGALOTES Green, 1834; Am. Jour. Sci., 1st series, vol. 25, p. 335. — ASTRAGALOTES Green, 1835; Suppl. Mon. Tril. N. A., p. 11, cast 37. Probably Phacops rana Green. — barrandi. (See Ogygia barrandi.) — CANADENSIS Chap., 1856; Canadian Jour., vol. 1, p. 482. Georgean Bay, Ontario. Utica Slate. — CANADENSIS Chap., 1858; Canadian Jour., vol. 2, p. 47. — CANADENSIS Chap., 1858; Canadian Jour., vol. 3, p. 230, fig. — CANADENSIS Chap., 1859; Canadian Jour., vol. 4, p. 1, fig. — CANADENSIS Chap., 1859; Annals. Nat. Hist., 3d series, vol. 2, p. 9, fig. 1. — CANADENSIS Bill., 1863; Geol. Survey Canada, p. 204, fig. 201. Isotelus CANALIS Conrad MSS. Chazy. Isotelus CANALIS Hall, 1847; Pal. New York, vol. 1, p. 25, pi. 4 bis, figs. 17-19. — CANALIS Bill., 1865; Pal. Foss., vol. 1, p. 255; also p. 352, fig. 340 (not Conrad sp.) — CANALIS Bill., 1862; Geol. Vermont, vol. 1, p. 299, pi. 12, fig. 5. This species is probably Asaphus platycephalus. — CANALIS Whitf., 1886; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 336, pi. 34, figs. 1-8. Fort Cassin, Vermont. Calciferous. - CANALIS Whitf., 1889; Bull. Am. Mus. Nat. Hist. New York, vol. 2, p. 64, pis. 11, 12. — CARIBOUENSIS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, pi. 98; pi. 12, figs. 7-7 a, b. Caribou Hill, Eureka Dist., Nevada. Pogonip. — caudatus. (See Dalmanites limulurus.) — cordieri. (See Dalmanites limulurus.) — corycceus, (See Proetus corycceus.) — crypturus. (See Homalonotus crypturus.) — CURIOSUS Bill., 1865; Pal. Foss., vol. 1, p. 318, fig. 305. Stanbridge, range 6, lot 20. — ? CURIOSUS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 98, pi. 12, fig. 15. Caribou Hill, Eureka District, Nev. CATALOGUE OF TRILOBITES. 273 ASAPHUS. denticulatutt. (See Dalmaniies denticulatus.) — ditmarsioe Honeyman, 1879; Proc. Nova Scotia Inst. Nat. Sci., vol. 5, p. 18. (See Homalonotus crypturus Green.) - diurus Green, 1839; Am. Jour. Sci., 1st series, vol. 37, p. 40. (See Dalmanites diurus.) edwardi. (See Dalmanites limulurus.) — EMORYI Hall, 1857; Kep. U. S. Mexican Boundary Survey, vol. 1, pi. 20, fig. 5. Not defined. extans. (See Bathyiirus extans.) fjigas. (See Asaphus platycephalus) . ~ (Mefjalaspist) GONIOCERCUS Meek, 1873; 6th Ann. Rep. U. S. Geol. Survey Territories, p. 480. Near Malade City, Utah. Cambrian. — GONIURUS Bill., 1860; Canadian Naturalist, vol. 5, p. 324. Point Levis, Quebec. — GONIURUS Bill., 1865; Pal. Foss,, vol. 1, p. 415. halli. (See Cryphczus boothi.) - HALLI Chap., 1858; Annals Nat. Hist., 3d series, vol. 2, p. 14, fig. 2. Trenton and Utica. — HALLI Chap., 1858; Canadian Jour., 2d series, vol. 3, p. 236, fig. This species is the same as Asaphus canadensis Chap. — hincksii Chap., 1859; Canadian Jour. Industry, Sci. and Arts, vol. 4, p. 2, fig. (See Asaphus canadensis Chap.) Utica. — HOMALONOTOIDES Wai., 1877; Advanced sheets 31st Rep. New York State Mus. Nat. Hist., p. 20. Two miles above Dunlith, Illinois. Trenton. - HOMALONOTOIDES Wai., 1879; 31st Rep. New York State Mus. Nat. Hist., p. 71. — HOMALONOTOIDES Whitf., 1882; Geol. Wisconsin, vol. 4, p. 237. (See Asaphus triangulatus.) - HUTTONI Bill., 1865; Pal. Foss., vol. 1, p. 271, fig. 256. Table Head, N. F. - ILLJENOIDES Bill., I860; Canadian Naturalist, vol. 5, p. 323. Point Levis, Quebec. - ILLJZNOIDES Bill., 1865; Pal. Foss., vol. 1, p. 414. Isolelus IOWENSIS Owen, 1852; Rep. Geol. Survey Wisconsin, Iowa and Minnesota, p. 577, pi. 2 a, figs. 1-7. On Turkey River, Iowa. Trenton. — laticostatus. (See Dalmanites anchiops.) — ? LATIMARGINATA Hall, 1847; Pal. New York, vol. 1, p. 253, pi. 66, figs. 4a-b. Watertown, Jefferson County, N. Y. Utica. limulurus. (See Dalmanites limttlurus.) - MAROINALIS Hall, 1847; Pal. New York, vol. 1, p. 24, pi. 4 6/6, fig. 15. Chazy Village, N. Y. Chazy. 18 274 CALIFORNIA ACADEMY OF SCIENCES. ASAPHUS. — MARGINALIS Emnious, 1855; Am. Geol., vol. 1, pt. 2, p. 235, pi. 3, fig. 16. Isotelus MAXIMUS Locke, 1838; 2d Ann. Kep. Geol. Survey Ohio, p. 246, figs. 8, 9. Trenton and Hudson. Syn., Isotelus megistos Locke, 1841; Trans. Am. Assoc. Geol. Nat., p. 221, pi. 6. Isotelus megistos Locke, 1842; Am. Jour. Sci., 1st series, vol. 42, p. 366, pi. 3. Isotelus megistos Meek, 1873; Pal. Ohio, vol. 1, p. 157, pi. 14, fig. 13. Isotelus megistos Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 137. Asajihus megistos Wai., 1884; Science, March 7, vol. 3, p. 200, fig. 1. Asaphux megalopthalmus Troost, 1840; 5th Geol. Rep. Tennessee, p. 57. This is a species of the genus Phacops. - MICROPLEURUS Green, 1835; Suppl. Mon. Tril. North America, p. 21, cast No. 41. — micrurus. (See Dalmanites micrurus.} — morris! Bill., 1865; Pal. Foss., vol. 1, p. 272, fig. 257, syn. to Asaphus huttoni Bill. — murchisoni Castelnau, Essai Sys. Sil., 1843, p. 19, pi. 4, fig. 3. Bathy- iirus'.t murchisoni. Trenton. • myrmecophorus. (See Dalmanites myrmecophorus.} — nasutus. (See Dalmanites nasutus.) - < nodostriatus Hall, 1847; Pal. New York, vol. 1, p. 248, pi. 61, figs. 1 a, b. (See Bathyurus extans Hall.) - NOTANS Bill., 1866; Catalogue Silurian Foss. Anticosti, p. 25, fig. 8. cf. Asaphus maximus Locke. English Head. Hudson. - ? OBTUSUS Hall, 1847; Pal. New York, vol. 1, p. 24, pi. 4 bis, fig. 14. Chazy village, Clinton count}7, N. Y. — OBTUSUS Emm., 1855; Arn. Geol., vol. 2, pt. 2, p. 236, pi. 3, fig. 14. - PELOPS Bill., 1865; Pal. Foss., vol. 1, p. 317, fig. 304. Bedford, in the bed of Pike River, and upper end of the island of Orleans. Quebec. - PLATYCEPHALUS Stokes, 1823; Trans. Geol. Soc. London, 2d series, vol. 1, p. 208, pi. 27. Canada, New York, Kentucky, etc. Trenton. Syn., Isotelus gigas Dekay, 1824; Annals Lyceum Nat. Hist. New York, vol. 1, p. 176, pi. 12, fig. 1. Isotelus i^lamis Dekay, 1824; Annals Lyceum Nat. Hist. New York, vol. 1, p. 178, pi. 13, fig. 7. Asaphus gigas Da 1m., 1826; Palnead., p. 70. Asaphus gigas and planus Dalm., 1826; Palaoad., p. 70. CATALOGUE OF TRILOBITES. 275 ASAPHUS. Isotelus gigas Greeu, 1832; Monthly Am. Jour. Geol., p. 560. Isotelus gigas Green, 1832; Mon. Tril. N. A., p. 71, casts 21, 22. Isotelus planus Green, 1832; Monthly Am. Jour. Geol., p. 560; Mon. Tril. N. A., p. 68, cast 23. Isotelus stegops Greeuv 1832; Mon. Tril. N. A., p. 71, casts 26, 27. Brongniartia isotelea Eaton, 1832; Geol. Text Book, p. 33, pi. 2, fig. 22. — PLATYCEPHALUS Broun, 1835; Lethaea Geogn., vol. 1, p. 115, pi. 9, fig. 8. Syn., Isotelus gigas Milne-Ed w., 1840; Crust., vol. 3, p. 298. — PLATYCEPHALUS Buckl., 1840; Bridgvr. Treatise, vol. 2, p. 76, pi. 63, fig. 12. — PLATYCEPHALUS Burni., 1843; Org. Trilobites, p. 110, pi. 2, fig. 12 (Kay Soc. ed., 1846). Syn., Isotelus gigas Portl., 1843; Geol. Rep. Londonderry, p. 295, pi. 7, fig. 1; pi. 8, fig. 1. Isotelus planus Portl., 1843; Geol. Bep. Londonderry, p. 295, pi. 7, figs. 2, 3. Isotelus gigas Hall, 1847; Pal. New York, vol. 1, p. 231, pis. 60-63. Isotelus gigas Emmons, 1855; Am. Geol., vol. 1, pt. 2, p. 215, pi. 16, fig. 12. Isotelus PLATYCEPHALUS Roemer, 1851-56; Lethaea Geogn., vol. 1, p. 632, pi. 9, fig. 8; pi. 91, fig. 5. — PLATYCEPHALUS Nieszk., 1857; Mon. Sil. Ostseeprovinz, Tril., p. 37. Syn., Isotelus gigas Rogers, 1858; Geol. Survey Pennsylvania, vol. 2, p. 819, tig. 610. - PLATYCEPHALUS Bill , 1863; Geol. Survey Canada, p. 184, fig. 183. Syn., Asaphus (Isotelus) gigas Salt., 1864; Mon. Brit. Tril., p. 161, pi. 24, figs. 1-5; pi. 25, fig. 1 (var.) Asaphus (Isolelus) gigas Salt., 1864; Mem. Geol. Survey United Kingdom, decade xi, pi. 3. — PLATYCEPHALUS Bill., 1870; Quart. Jour. Geol. Soc. London, vol. 26, p. 486, pis. 31, 32. Syn., Isotelus gigas Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 138. — platyleurus Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 169. (See Dalmanitis platyleurus.) — POLYPLEURUS Green, 1838; Am. Jour. Sci., 1st series, vol. 34, p. 380. On the banks of the Mississippi, near the mouth of Des Moines River. - QUADRATICAUDATUS Bill., 1865; Pal. Foss., vol. 1, p. 272, fig. 258. Table Head, N. F. - IUEMINGERI Wai., 1876; 28th Rep. New York State Mus. Nat. Hist., p. 96. Russia, Herkimer county, N. Y.; Quimby's Mill, Lafayette county, Wis. Trenton. 276 CALIFORNIA ACADEMY OF SCIENCES. ASAPHUS. ATOPS. selenurus. (See Dalmanites selenurus.) stokesi. (See Proetus stokesi.) Calvin; MSS. Whitf., 1882; Geol. Wisconsin, vol. 4, p. 236, pi. 5, fig. 3; pi. 10, fig. 8. Apple River, just across the Illinois line. Trenton. — TETRAGONOCEPHALUS Green, 1834; Am. Jour. Sci., 1st series, vol. 25, p. 135. — TETRAGONOCEPHALUS Green, 1835; Suppl. Moil. Tril. N. A., p. 12, cast 38. Found in boulder of bituminous shaly limestone in New York State. Paradoxides TETRAGOXOCEPHALUS Emm., 1839; De Tril., etc., p. 34. — trentonensis. (See Lichas trentonensis.) — triangulatus Whitf., 1880; Ann. Kep. Geol. Survey Wisconsin, 1879, p. 59. This species is referred to Asaphus homalonotoides Wai., Final • Report, vol. 4, p. 237, pi. 5, fig. 4. Sec. 5 T., 5 R., 5 W., Grant county, Wisconsin. Trenton. — TRIMBLII Green, 1837; Acad. Nat. Sci. Phila., Jour., vol. 7, p. 224. Huntingdon county, Perm. Devonian. — TRIMBLII Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 348. Ogygia ? VETUSTUS Hall, 1847; Pal. N. Y., vol. 1, p. 227, pi. 60, fig. 1. Mohawk Valley, New York. Trenton. Hudson. Oyygia ? VETUSTUS Emmons, 1855; Am. Geol., vol. 1, pt. 2, p. 216, ' ' fig. 72. - (Isotelus) VIUILANS M. & W., 1870; Proc. Acad. Nat. Sci. Phila., p. 53. Hudson. - (Isotelw) VIGILANS M. & W., 1875; Geol. Illinois, vol. 6, p. 497, pi. 23, fig. 6. Carroll county, near Mount Carroll; Oswego, Kendall county, Illinois. - WISCONSENSIS Wai., 1876; 28th Rep.N. Y. State Mus. Nat. Hist., p. 97. Russia, Herkimer county, N. Y. Mineral Point and Plattsville, Wis. Trenton. ASPIDOLITES Con., 1841; 4th Ann. Rep. Pal. Dept.New York Geol. Survey, p. 48. ATOPS Emmons, 1844; Taconic System, p. 20. Syn., Conocoryphe Cord., 1847; Prodr., p. 139, pi. 2, fig. 10. Conocephalites BAILEYI Hartt., 1868; Acadian Geol., p. 645 (3d ed.) St. John's group at RatclifFs Millstream, N. B. Conocoryphe BAILEYI Matt., 1884; Trans. Royal Soc. Canada, vol, 1, p. Ill, pi. 1, figs. 22-27. Conocoryphe (Bailiella) BAILEYI Matt., 1884; Trans. Royal Soc. Canada, vol. 1, p. 1, fig. 22. Conocoryphe (Salteria) BAILEYI Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 32, pi. 4, figs. 3, 3 a; pi. 5, figs. 7, 7 a. The author herein proposed the subgenus Salteria (corrected to Bailiella) for CATALOGUE OF TRILOBITES. 277 ATOPS. Erinnys Salt., a preoccupied generic name; the same is true of Salteria, used for a genus of fossil Crustacea. Conocoryphe BAILEYI Matt., 1890; Trans. Royal Soc. Canada, vol. 8, p. 135, pi, 11, fig. 10. Paradoxides zone. Conocephalites CALCIFERA Wai., 1879; 32d Rep. New York State Mus. Nat. Hist., p. 129. Saratoga County, N. Y. Calciferous. Conocephalites CORDILLDR.E Roniinger, 1887; Proc. Acad. Nat. Sci., Phila., p. 17, pi. 1, fig. 7. Mount Stephens, B. C. Taconic. Conocephalites ELEGANS Hartt, 1868; Acadian Geol. (3d ed.),. p. 650. RadcliflTs Millstream, N. B. Conocoryphe ELEGANS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 33, pi. 4, figs. 2, 2 a-b. yemini-spinosus Hartt. (Syn., Atops matthewi.) Conocephalites HARTTI Wai., 1879; 32d Rep. New York State Mus. Nat. His., p. 130. Saratoga County, N. Y. Calciferous. Conocephalites MATTHEWI Hartt, 1868; Acadian Geol., p. 646, fig. 224. Radcliffe's Millstream and St. John. Conocephalites MATTHEWI Matt., 1884; Trans. Royal Soc. Canada, vol. 1, p. 103, pi., figs. 6-21. Syn., Harttia matthewi Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 19, pi. 1, tig. 3. Conocoryphe MATTHEWI Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 28, pi. 4, figs. 1, 1 a-b. Conocephalites OPTATUS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 222, pi. 5 a, fig. 7. Trempaleau, Wisconsin. Dike- locephalus zone. — TRILIXEATCS Eminous, 1844; Taconic System, p. 20, fig. 1, pi. 2, fig. 3. Reynolds Inn, 7 miles north of Union Village, Washington County, N. Y. Taconic. Conformity to the rules governing nomenclature, which are intended to render justice to every investigator, the genus Atops Emmons, 1844, should replace that of Conocoryphe Corda described in 1847. The original figure of this species was the first primodial fossil described from American rocks; this species -whhOlenellus asaph- oides Emm. clearly defined the Taconic System in 1844 and its position below Murchison's Lower Silurian of 1837. The fact that the original Cambrian was the same as the Lower Silurian cannot be recalled and in justice to Sedgwick it must be given to that system. — TRILIXEATCS Emmons, 1847; Nat. Hist. New York, Agriculture, vol. 1, p. 64, fig. 8, pi. 14, tig. 3. Syn., Calymene beckii Hall, 1847; Pal. New York, vol. 1, p. 252, pi. 67, tigs. 4 a, 4e. TRILINEATUS Haldemau, 1848; Am. Jour. Sci., 2d series, vol. 5, p. 107. 278 CALIFORNIA ACADEMY OF SCIENCES. ATOPS. TRILINEATUS Enimons, 1849; Proc. Am. Assoc Adv. Sci., 1st Meeting, Phila., 1848, pp. 16, 17. Calymene beckii Green, Atops trilineatus (Emm.) Fitch, 1849; Trans. Agric. Soc. New York, vol. 9, p. 865 (not Calymene beckii Green). — TRILINEATUS Emmons, 1855; Am. Geol., vol. 1, pt. 2, p: 115, pi. 1, tig. 16. Syii., Atops punctatus Emm., 1860; Manual Geol., p. 88, fig. 71; also p. 280. — TRILINEATUS BEIT., 1861; Bull. Soc. Geol. France, 2d series, vol. IS, p. 269, pi. 5, tig. 1. punctatus Barr., 1861; Bull. Soc. Geol. France, 2cl series, vol. 18, p. 271, pi. 5, fig. 3. Conocephalites (Atops) TRILINEATUS Ford, 1871; Am. Jour. Sci., 3d series, vol. 2, p. 33. Conocephalites TRILINEATUS Ford, 1873; Am. Jour. Sci., 3d series, vol. 6, p. 135. Conoc.ephaUtes (Atops) TRILINEATUS Ford, 1879; Am. Jour. Sci., 3d series, vol. 9, p. 205. Triarthrus TRILINEATUS Miller, 1877; Catalogue Am. Pal. Foss., p. 223. Conocoryphe TRILINEATUS Ford, 1880; Am. Jour. Sci., 3d series, vol. 19, p. 152. Triarthrus becki Wai., 1879; Trans. Albany Inst., vol. 10, p. 23. Ptycopharia TRILINEATUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 203, pi. 27, fig. 1 a-c. The figures of this species given by Dr. Emmons are all imperfect. Ford's figure given in Bull. U. S. Geol. Survey, No. 30, pi. 27, fig. 1 a-b, shows a glabella and a pygidium, which is nearly semi- circular in form; the axis strong, composed of 7 segments, with a row of obtuse spines along the middle; lateral lobes composed of 5 segments, each with distinct intervening grooves; marginal rim nearly flat, widest towards the front and distinctly and regu- larly notched or denticulated all around. This may prove to be a species of the genus Olenoides. Conocoryphe TRILINEATUS Wai., 1887; Am. Jour. Sci., 3d series, vol. 34, p. 197, pi. 1, fig. 7 a-b. Conocoryphe TRILINEATA Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 647, pi. 94, figs. 5, 5 a-e. Olenellus zone. Conocoryphe (Bailiella) WALCOTTI Matt., 1884; Trans. Royal Sor. Canada, vol. 1, p. 119, pi. 1, figs. 36, 36 b. At St. John, in Di- vision 1 c. Taconic. Conocoryphe WALCOTTI Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 30. Conocoryphe WALCOTTI, 1890; Trans. Roy. Soc. Canada, vol. 8, p. 134, pi. 11, fig. 7, 7 a-c. Paradoxides zone. CATALOGUE OF TRILOBITES. 279 AVALONIA, BATHYURELLUS. AVALONIA Wai., 1889; Proc. Nat. Mus., vol. 12, p. 44. - MAXUELKNSIS Wai.; Proc. Nat. Mus., vol. 12, p. 44. Manuel's Brook, Conception Bay, N. F. See, also, 10th Rep. U. S. Geol. Survey, p. 646, pi. 95, figs. 3, 3 a. Taconic. BailifUa Matt., 1884; Trans. Roy. Soc. Canada, vol. 1, p. 124 (used as a subgenus). (See Conocoryphe (Bailiella) Baileyi.) Bar ran diet Hall, 1860; 13th Rep. New York State Cab. Nat. Hist., p. 115 (not Barrandia McCoy). (See Olenellus.) thompsoni. (See Olenellus thompsoni.) niontana. (See Olenellus vermontana&nd Mesonasis vcrmontana.) BARRAXDIA McCoy, 1849; Annals Nat. Hist., 2d series, vol. 4, p. 409. - ? MACCOYI Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 96, pi. 12, fig. 5. Hamburg Ridge, Eureka Dist., Nev. Pogouip group. BATHYNOTUS Hall, 1860; 13th Rep. New York State Cab. Nat. Hist., p. 117. Peltura (Oletms) HOLOPYGA Hall, 1859; 12th Rep. New York State Cab. Nat. Hist., p. 61, fig. Georgia, Vermont. Taconic. Peltura (Olenus) HOLOPYGA Hall, 1859; Pal. New York, vol. 3, p. 528, fig- Syn., Paradoxides ? quadrispinosus Emmons, 1860; Manual Geol., pp. 80 and 280, fig. 57. - HOLOPYGA Hall, 1860; 13th Rep. New York State Cab. Nat. Hist., p. 118, fig. 3. - HOLOPYGA Hall, 1861; Geol. Vermont, vol. 1, p. 371, pi. 13, fig. 3. Peltura (Olenus) HOLOPYGA Barr., 1861; Bull. Soc. Geol. France, 2d series, vol. 18, p. 278, pi. 5, figs. 9-10. - HOLOPYGA Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 191, pi. 31, figs. 1, 1 a. - HOLOPYGA Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 646, pi. 95, fig. 1 a. Olenellus zone. BATHYURELLUS Bill., 1865; Pal. Foss., vol. 1, p. 262. - ABRUPTUS Bill., 1865; Pal. Foss., vol. 1, p. 263, fig. 247. Port aux Choix and Keppel Island, N. F. Calciferous. — (Asaphiscus) bradleyi Meek. (See Asaphiscus bradleyi.) - EXPAXSUS Bill., 1865; Pal. Foss., vol. 1, p. 318, figs. 306 a-b. cf. B. nitidus and B. marginal us Bill. Stanbridg, Range 6, Lot 20. - FORMOSUS Bill., 1865; Pal. Foss., vol. 1, p. 266, fig. 250. Cow Head, N. F. - FRATERXUS Bill., 1865; Pal. Foss., vol. 1, p. 267, fig. 251. Cow Head, N. F. The head of this species may belong to Salter's genus Stygina. LITOREUS Bill., 1865; Pal. Foss., vol. 1, p. 320. Point Levis, Quebec. 280 CALIFORNIA ACADEMY OF SCIENCES. BATHYUKELLUS. BATHYURUS. - MARGINATUS Bill., 1865; Pal. Foss., vol. 1, p. 261, fig. 248. cf. B. nitidus and B. expansus Bill. Keppel Island, Port aux Choix and Table Head, N. F. Calciferous. - NITIDUS Bill., 1865; Pal. Foss., vol. 1, p. 265, fig. 249. Cow Head, N. F. On page 320 Mr. Billings says that it may be found neces- sary to unite B. nitidus, B. marginatus and B. expansus into one species. — RARUS Bill., 1865; Pal. Foss., vol. 1, p. 320, no fig. Point Levis, Quebec. — (Dicellocephalus) TRUNCATUS Meek, 1873; 6th Ann. Kep. Geol. Survey Territories, p. 465 (no description given). - VALIDUS Bill., 1865; Pal. Foss., vol. 1, p. 268, fig. 252. Point Rich, N. F. — (Asaphiscus) wheeleri. (See Asaphiscus ivheeleri.) BATHYURISCUS Meek, 1873; 6th Ann. Eep. U. S. Geol. Survey Territories, p. 484. Bathyurus ? HAYDENI Meek, 1873; 6th Ann. Rep. U. S. Geol. Sur- vey Territories, p. 482. Gallatiii River, Gallatin City, Mont. - HAYDENI Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 215. - HOWELLI WaL, 1886; Bull. U. S. Geol. Survey, No. 30, p. 216, pi. 30, figs. 2, 2 a. Chisholm Mine, near Pioche, Nev. Taconic. Syii., Embolimus rotundatus (Roniinger) Walcott, 1888; Am. Jour. Sci., 3d series, vol. 36, p. 165, referred to Bathyuriscus howelli. - Ogygia PARABOLA H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 245, pi. 2, fig. 35. Oquirrh Mts., Utah. Niobe parabola. Taconic. Ogygia PRODUCTA H. & W., 1877; U. S. Geol. Expl. 40th Par., vol.4, p. 244, pi. 2, figs. 31-34. Oquirrh Mts., Utah. Taconic. - PRODUCTA Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 217, pi. 30, figs. 1, 1 a-c. Big Cottoiiwood Canon, City Creek, Wahsatch Mts., etc., Utah. BATHYURUS Bill., 1859; Canadian Naturalist, vol. 4, p. 364. — AMPLIMARGINATUS Bill., 1857; Canadian Naturalist, vol. 4, p. 365, fig. 12 a-b. Mingan Islands in the Calciferous. — AMPLIMARGINATUS Bill., 1863; Geol. Canada, p. 122, fig. 41. — AMPLIMARGIXATUS Bill., 1865; Pal. Foss., vol. 1, p. 353, fig. 341 a. - ANGELINI Bill., 1859; Canadian Naturalist, vol. 4, p. 467, fig. 37. cf. B. extans Hall. Grenville and Fitzroy Harbor. Chazy group. — ANGELINI Bill., 1863; Geol. Canada, p. 133, fig. 68. — ARCUATUS Bill., 1865; Pal. Foss., vol. 1, p. 205, fig. 190. St. Antoine, Quebec. - ARMATUS Bill., 1860; Canadian Naturalist, vol. 5, p. 319, fig. 23. Point Levis, Quebec. - ARMATUS Bill., 1865; Pal. Foss., vol. 1, p. 411, fig. 392. CATALOGUE OF TRILOBITK- 281 BATHYURUS. - ARMATUS Wai., 1879; 32d Rep. New York State Mus. Nat. Hist., p. 131. Dorypyge ? ARMATUS Vogd., Bull. U. S. Geol. Survey, No. 63, p. 97. - BiTCBERCULA-rrs Bill., 1860; Canadian Naturalist, vol. 5, p. 319, fig. 22; also, Geol. Canada, 1863, p. 238, fig. 270. Point Levis, Quebec. Taconic. — BITUBERCULATUS Bill., 1865; Pal. Foss., vol. 1, p. 410, fig. 391. This species cannot be included within the limits of Bathyurns. As we know of no other to which it bears a resemblance, the new generic term of lAoydla is proposed, in honor of the first author on Trilobites, Edward Lhwyd. Diagnosis: Glabella tumid and extending to the frontal limb; basal lobes elongate-oval, pointed at both ends, separated from the glabella by shallow, obscure grooves; eyes opposite the mid length of the glabella; thorax unknown. - BREVICEPS Bill., 1865; Pal. Foss., vol. 1, p. 262, fig. 246. Table Head, N. F. — CAPAX Bill., 1860; Canadian Naturalist, vol. 5, p. 318, fig. 20. Point Levis, Quebec. - CAPAX Bill., 1863; Geol. Canada, p. 238, fig. 271. — CAPAX Bill., 1865; Pal. Foss., vol. 1, p. 409, fig. 389, A similar species was referred by Mr. R. P. Whitfield (Geol. Survey Wis- consin, vol. 4, pi. 4, fig. 6) to Dicellocephalus. cf. Niobe insignia Brogg. - CAUDATUS Bill., 1865; Pal. Foss., vol. 1, p. 261, fig. 245. Port aux Choix, N. F. Calciferous. — CONICUS Bill., 1859; Canadian Naturalist, vol. 4, p. 366, fig. 12 d. St. Timothy Beaucharuois Canal, in the Upper Calciferous. - coxicrs Bill., 1863; Geol. Canada, p. 122, fig. 42. — CONICUS Bill., 1865; Pal. Foss., vol. 1, p. 353, fig. 341 b. - coxicus Whitf., 1889; Bull. Am. Mus. Nat. Hist., vol. 2, No. 2, p. 61, pi. 13, figs. 15-21. — VCOXGEXERIS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 92, pi. 12, fig. 8. Wood cone and below Bellevue Peak, Fish Creek Mts., Eureka Dist. — CORDAI Bill., 1860; Canadian Naturalist, vol. 5, p. 321, fig. 26. Cow Head, Point Levis, etc. Calciferous. — CORDAI Bill., 1863; Geol. Canada, p. 238, fig. 269. - CORDAI Bill., 1865; Pal. Foss., vol. 1, p. 259, fig. 242; p. 412, fig. 395. - ? CROTALIFROXS Dwight, 1884; Am. Jour. Sci., 3d series, vol. 27, p. 253: figs., 4, 4 a, 5, 6. Rockdale, N. Y. Calciferous. — CVBELE Bill., 1859; Canadian Naturalist, vol. 4, p. 366, fig. 12 c. Miiigau Islands, Beauharnois and in the counties of Leeds and Greenville, Canada. Calciferous. CYBELE Bill., 1863; Geol. Canada, p. 122, fig. 43. 282 CALIFORNIA ACADEMY OF SCIENCES. BATHYUKUS. - CYBELE Bill., 1865; Pal. Foss., vol. 1, p. 852, tig. 341 c. - DUBIUS Bill., 1860; Canadian Naturalist, vol. 5, p. 319, tig. 21. Point Levis, Quebec. - DUBIUS Bill., 1865; Pal. Foss., vol. 1, p. 410, fig. 390. Asaphusl EXTAXS Hall, 1847; Pal. New York, vol. 1, p. 228, pi. 60, figs. 2a-c. Great Bend, Jefferson County, N. Y. Trenton. Asaphus? EXTAXS Hall, 1850; 3d Rep. New York State Cab. Nat. Hist., p. 174, pi. 3, figs. 1 a-c. Syn., Asaphits nodostriatus Hall, 1850; 3d Rep. New York State Cab. Nat. Hist., p. 17. — EXTANS Bill., 1863; Geol. Canada, p. 153, fig. 114. — yreyarius Bill., 1865; Pal. Foss., vol. 1, p. 363, fig. 349. St. Mary's Bay, N. F. Mr. Walcott (Bull. U. S. Geol. Survey, No. 10, p. 36) refers this species to the genus Solenopleura Aug., and remarks that many of the Cambrian species of the genus Bathyurn* described in the Canadian reports might be referred to that genus. This species occurs with Paradoxides bennetti Salt. Taconic. — ? haydeni. (See Bathyuriscus haydeni.) - LONGISPIXUS Wai., 1876; 28th Rep. N. Y. State Cab. Nat. Hist., p. 94. Russia, Herkimer Co., N. Y.; Plattsville, Wis. Trenton. - MINGANENSIS Bill., 1865; Pal. Foss., vol. 1, p. 353. Miiigan Islands. Calciferous. nero. (See Solenopleura nero.) — OBLOXGUS Bill., 1865; Canadian Naturalist, vol. 5, p. 321, fig. 25. - OBLONGUS Bill., 1865; Pal. Foss., vol. 1, p. 411, fig. 394. Point Levis, Quebec. - OBLOXGUS Bill., 1861; Geol. Vermont, vol. 1, p. 952, fig. 361. - PARVULUS Bill.. 1861; Pal. Foss., Canada, p. 16, fig. 21. Taconic. - PARVULUS Bill., 1861; Geol. Vermont, vol. 2, p. 952, fig. 361. - PARVULUS Bill., 1865; Pal. Foss., vol. 1, p. 16, fig. 21. - PERPLEXUS Bill., 1865; Pal. Foss., vol. 1, p. 364, fig. 350. Bonne Bay, N. F. Taconic. - PERSPICATOR Bill., 1865; Pal. Foss., vol. 1, p. 205, fig. 191. Near St. Antoine, Quebec. - POGOXIPEXSIS Hall & Whit., 1877; U. S. Geol. Expl. 40th Par., vol.4, p. 243. pi. 1, figs. 33, 34. Cambrian. — QUADRATUS Bill., I860; Canadian Naturalist, vol. 5, p. 321, fig. 27. Point Levis, Quebec. Taconic. — QUADRATUS Bill., 1865; Pal. Foss., vol. 1, p. 412, fig. 396. — SAFFORDI Bill., 1860; Canadian Naturalist, vol. 5, p. 321, fig. 24. Point Levis, Quebec. Taconic. — SAFFORDI Bill., 1865; Pal. Foss., vol. 1, p. 259, fig. 341; p. 411, fig. 393. — SEELYI Whitf., 1886; Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 8, p. 339, pi. 33, figs. 12-18. Fort Casin, Vermont. Calciferous. CATALOGUE OF TKILOBITKS. 283 -v BATHYURUS. - SEELYI Whitf., 1889; Bull. Am. Mus. Nat. Hist. New York, vol. 2, No. 2, p. 62, pi. 13, figs. 8-14. — SENECTUS Bill., 1861; Pal. Foss., Canada, p. 16. — SENECTUS Bill., 1861; Geol. Vermont, vol. 2, p. 953, figs. 359, 360. Highgate, Vermont. Taconic. eus cctllitelus.) Dalm an ia CALYPSO Hall, 1861; Des. New Species Foss., p. 61. Falls of the Ohio. Upper Helderberg. Dalmania CALYPSO Hall, 1862; loth Rep. New York State Cab. Nat. Hist., p. 89. — CALYPSO Hall, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 1-2. — (Chasmops) CALYPSO Hall, 1888; Pal. New York, vol. 7, p. 4, pi. 16 a, fig. 1. - ? CAYAHOGOE Claypole, 1884; Geol. Mag., vol. 1, p. 305, fig. Akron, Ohio. Carboniferous. - ? CAYAHOGOE H. W., 1884; Mon. Brit. Carboniferous Tril., p. 79, fig. — CARLEYI Meek, 1872; Am. Jour. Sci., 3d series, vol. 3, p. 424. Cin- cinnati, Ohio. Hudson. - CARLEYI Meek, 1873; Pal. Ohio, vol. 1, p. 170, pi. 14, figs. 2 a, 2d. — CARLEYI Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 142. Dalmania caudata (Brong.) Roeiner. (See Dalmanites limuJurx* Green.) — (Cryphceus) comis. (See Cryphfeus comis Hall.) — coxcixxus Hall, 1876; Illus. Devonian Foss. Crust., pi. 10, figs. 3-5. Schoharie. — (Hausmanma) CONCIXNUS Hall, 1888; Pal. New York, vol. 7, p. 30, pi. 11 a, figs. 9-11. Schoharie, near Clarksville, Albany county, etc., N. Y. — (Hausmannia) COXCINNUS var. SERRCLA Hall, 1888; Pal. New York, vol. 7, p. 30, pi. 11 a, fig. 12. Dalmania COROXATUS Hall, 1861; Des. New Species Foss., p. 58. Upper Helderberg. - Dalmania COROXATCS Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 86. In Hamilton Group, near Skeneateles Lake, N. Y. — CORONATUS Hall., 1876; Illus. Devonian Foss. Crust., pi. 12, fig.-. 15-17; pi. 13, fig. 5. — (Odontocephahis?) CORONATCS Hall, 1888; Pal. New York, vol. 7, p. 54, pi. 11 b, figs. 12-14. - DAX.E M. A: W., 1865; Proc. Acad. Nat. Sci. Phila., p. 264. Two miles above Thebes, Illinois. Niagara. - DAKJS M. & W., 1868; Pal. Illinois, vol. 3, p. 363, pi. 6, figs. 1 a, 1 f . - DEXTATA Barrett, 1876; Am. Jour. Sci., 3d series, vol. 11, p. 200, pi. Lower Helderberg. — DEXTATA Barrett, 1876; Am. Jour. Sci., 3d series, vol. 12, p. 70. , — (Corycephalus) DEXTATUS Hall, 1888; Pal. New York, vol. 7, p. 58, pi. 11 a, figs. 4-6. Port Jervis, Becraft's Mt. and Hudson, N. Y. Asaphus DEXTICULATUS Conrad, 1841; 5th Rep. Pal. Dept. New York Geol. Survey, p. 48. Lower Helderberg. Hall, 1876; Illu-. Devonian Foss. Crust., pi. 10, fig. 1. 300 CALIFORNIA ACADEMY OF SCIENCES. DALMANITES. - (Phceton) DENTICULATUS Meek, 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 49, pi. 1, figs. 10 a, b. Asaphus diurus Green is referred to Coronura diurus by Clarke. (See note en Coronura aspectans, p. 5.) Syn., Asaphus aspectans Conrad; also, Dalmanites ohioensis Meek, and D. helena Hall, all from the Corniferous limestone. — EMARGINATUS Hall, 1876; Illus. Devonian Foss. Crust., pi. 10, fig. 2. Upper Helderberg. — (Coronura?} EMARGINATUS Hall, 1888; Pal. New York, vol. 7, p. 40, pi. 11 a, figs. 7, 8. Schoharie, N. Y. - EPICRATES Bill., 1863; Proc. Portland Soc. Nat. Hist., vol. 1, p. 119, pi. 1, fig. 21. Stair Falls, Maine. Silurian. Dalmania ERINA Hall, 1861; Des.New Species Foss., p. 62. Williams- ville, N. Y. Upper Helderberg. Dalmania ERINA Hall, 1862; loth Kep. New York State Cab. Nat. Hist., p. 90. - ERINA Hall, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 3-4. - (Chasmops) ERINA Hall, 1888; Pal. New York, vol. 7, p. 67, pi. 11, figs. 16-18. Dalmania helena. (See Dalmanites aspectans.) — INTERMEDIUS Wai., 1877; advance sheets 31st Kep. New York State Cab. Nat. Hist., p. 17. Two miles north of Dunlith, 111., etc. Trenton. - INTERMEDIUS WaL, 1879; 31st Kep. New York State Cab. Nat. Hist., p. 69. Phacops? LATICAUDA Hall, 1847; Pal. New York, vol. 1, p. 248, pi. 64, fig. 3. Asaphus LIMULURUS Green, 1832; Monthly Am. Jour. Geol., vol. 1, p. 559. Niagara. Asaphus LIMULURUS Green, 1832; Mon. Tril. N. A., p. 48, cast 16. Phacops LIMULURUS Hall, 1852; Pal. New York, vol. 2, p. 303, pi. 67, figs. 1-8. Lockport, N. Y. Syn., Dalmania caudata (Brong.) Roemer, 1860; Die Sil. Fauna VV. Tenn., p. 82, pi. 5, fig. 21. Dalmania LOGANI Hall, 1860; Canadian Naturalist, vol. 5, p. 156, fig. 18. Nova Scotia. Silurian. Dalmania MACROPS Hall, 1861; Des. New Species Foss., p. 59. Schoharie, N. Y. Upper Helderberg. Dalmania MACROPS Hall, 1862; 15th Eep. New York State Cab. Nat. Hist., p. 87. - MACROPS, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 9, 10. - (Chasmops) MACROPS Hall, 1888; Pal. New York, vol. 7, p. 68, pi. 11 a, figs. 14-15. Schoharie, N. Y. CATALOGUE OF TRILOBITES. 301 DALMANITES. - MACROURA? (Sjogr.) Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 61. Billings proposes the following classification of this variable species: Dal. macroura (Swedish), D. affinis (English), D. anti- costientis n. sp. (Canadian). Dalmania META Hall, 1862; Geol. Wisconsin, vol. 1, p. 433. Trenton. - MEEKI Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 207, pi. 17, figs. 5-5 a, b (not fig. 5 c). Comb's Peak, Reese and Berry Canon, Nev. - (undetermined sp.) Meek, 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 48, pi. 1, figs. 11, 11 a. — (Hausmannia) MEEKI Hall, 1888; Pal. New York, vol. 7, p. 32, pi. 11 a, figs. 28-30. Asaphus MICRURUS Green, 1832; Monthly Am. Jour. Geol., p. 559, pi. 14, fig. 3. Lower Helderberg. Asaphus MICRURUS Green, 1832; Mon. Tril. N. A., p. 56, cast 19, pi., fig. 3. Dalmania MICRURUS Hall, 1859; Pal. New York, vol. 3, p. 359, pi. 75, figs. 13-18. Asaphus MYRMECOPHORUS Green, 1835; Am. Jour. Sci., 1st series, vol. 23, p. 307. Upper Helderberg. Asaphus MYRMECOFHORUS Green, 1835; Suppl. Mon. Tril. N. A., p. 16, cast 40'. Dalmania MYRMECOPHORUS Hall, 1861; Des. New Species Foss., p. 60. Dalmania MYRMECOPHORUS Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 88. - MYRMECOPHORUS Hall, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 15-16. - (Coronura) MYRMECOPHORUS Hall, 1888; Pal. New York, vol. 7, p. 37, pi. 11 a, fig. 13; pi. 13, fig. 12; pi. 14, figs. 1-6; pi. 15, figs. 1-4. Clarksville, Schoharie, etc., N. Y. Asaphus XASUTUS Con., 1841; 5th Rep. Pal. Dept. New York Geol. Survey, p. 48. Lower Helderberg. Dalmania NASUTUS Hall, 1859; Pal. New York, vol. 3, p. 362, pi. 75, fig. 2; pi. 76, figs. 1-9. Schoharie, N. Y. Dalmanites ohioensis. (See Dalmanites aspectans.) (Hausmannia) PHACOPTYX Hall, 1888; Pal. New York, vol. 7, p. 31, pi. 11 a, figs. 23-29. Cayuga, Province of Ontario. Upper Helderberg. Dalmania pleione. (See Cryphceus pleione.) Fall of the Ohio. Asaphus PLEUROPTERYX Green, 1832; Monthly Jour. Geol., vol. 1, p. 559. Lower Helderberg. Asaphus PLEUROPTERYX Green, 1832; Mon. Tril. N. A., p. 55, cast 18. Dalmania PLEUROPTERYX Hall, 1859; Pal. New York, vol. 3, p. 356, pi. 74, figs. 5(?), 9(?) (not figs. 1-4, 6-8, 10-12), pi. 75, fig. 1? 302 CALIFORNIA ACADEMY OF SCIENCES. DALMANITES. — (Hausmannia) PLEUROPTERYX Hall, 1888; Pal. New York, vol. 7, p. 28, pi. 11 a, figs. 1-3. Clarksville, Schoharie; also in Oriskany sand- stone, Township of Walpole; Coruiferous limestone of Clarence Hollow, etc., N. Y. — (Corycephalus) PYGM&US Hall, 1888; Pal. New York, vol. 7, p. 56, pi. 11, figs. 5-8. Boulders, Canandaigua, N. Y. Corniferous. Upper Helderberg. — RECALLS Hall, 1876; Illus. Devonian Foss. Crust., pi. 11, figs. 1-4. Knox, Albany county, N. Y. Schoharie. Upper Helderberg. — \Corycephalus) RECALLS Hall, 1888; Pal. New York, vol. 7, p. 55, pi. 11, figs. 1-4. Asaphus SELENURUS Eaton, 1832; Geological Text Book, p. 31, pi. 1, fig. 1. Upper Helderberg. Asaphus SELENURUS Green, 1832; Mon. Tril. N. A., p. 46, casts 14 and 15. Syn., Calymene? odontocephala Green, 1835; Suppl. Mon. Tril. N. A., p. 9, cast 36. Calymene1? odontocephala Green, 1835; Am. Jour. Sci., 1st series, vol. 25, p. 334. Odontocephalus SELENURUS Con., 1840; 3d Rep. Pal. Dept. New York Geol. Survey, p. 204. Odontocephalus SELENURUS Vauuxem, 1842; Geol. New York, 3d Geol. Dist., pp. 139, 140, fig. 1. Odontocephalus SELENURUS Hall, 1843; Geol. New York, 4th Geol. Dist., p. 175, fig. 1. Dalmania SELENURUS Hall, 1859; 12th Rep. New York State Cab. Nat. Hist., p. 88. Dalmania SELENURUS Hall, 1861; Des. New Species Foss., p. 56. Helderberg Mountains. Dalmania SELENURUS Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 84. Helderberg Mts., Schoharie and Auburn, N. Y. Syn., Odontocephalus? Dalmanites (Odontocephalus) arenarius M. & W., 1868; Geol. Survey Illinois, vol. 3, p. 416, pi. 9, fig. 10. — SELENURUS Hall, 1876; Illus. Devonian Foss. Crust., pi. 12, figs. 12- 14. - (Odontocephalus} SELENURUS Hall, 1888; Pal. New York, vol. 7, p. 49, pi. 11 b, figs. 15-21; pi. 12, figs. 1-13. Marbletown, Clarksville, Schoharie, etc., N. Y7. Dalmania TRIDENS Hall, 1859; Pal. New York, vol. 3, p. 361, pi. 75, figs. 3-6. Schoharie, N. Y. Lower Helderberg. Dalmania TRIDENTIFERA Shumard, 1855; 1st and 2d Geol. Reps. Missouri, p. 199, pi. B, figs. 8 a-c. Bailey's Landing, Birming- ton, Missouri. Lower Helderberg. - TRIDENTIFERA M. & W., 1868. Pal. Illinois, vol. 3, p. 391, pi. 7, fig. 16. CATALOGUE OF TRILOHITES: 303 I ) ALMANITES. DICELLOCEPHALUS. - Irootti Safford, 1869; Geol. Teuuessee, p. 290. (See Chasmojis troosti Safford.) Nashville. Dalmania VERRUCOSUS Hall, 1863; Traus. Albany lust., vol. 4, ID. 218. (Abstract published May, 1863, p. 24.) Waldrou, Indiana. Niagara. - VERRUCOSCS Hall, 1875; 28th Rep. New York State Mus. Nat. Hist., pi. 23, tigs. 5-17, 13-15. Museum ed., 1879, p. 195, pi. 23, figs. 5-17; pi. 34, figs. 13-15. - VERRUCOSUS Hall, 1882; llth Ann. Rep. Dept. Geol. Nat. Hist. In- diana, p. 341, pi. 35, figs. 5-17; pi. 36, figs. 13-15. - \ IGILANS Hall, 1861; Rep. Progress Wisconsin Geol. Survey, p. 51. Niagara. Dalmania VIGILAXS Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., p. 335, pi. 21, figs. 16-18. Waukesha, and other localities in Wisconsin. Dalmania VIGILAXS Hall, 1870; 20th Rep /New York State Cab. Nat. Hist. (2d ed.), p. 426, pi. 21, figs. 16-18. - VIGILAXS Hall, 1875; 28th Rep. New York State Mus. Nat. Hist. Expl., pi. 33, tigs. 1-4. - VIGILAXS Hall, 1879; 28th Rep. New York -State Mus. Nat. Hist. (Mus. ed.), p. 193, pi. 33, figs. 1-4. - VIGILAXS Hall, 1882; llth Ann. Rep. Geol. Nat. Hist. Indiana, 1881, p. 339, pi. 35, figs. 1-4; pi. 33, fig. 9. - \VERTHNERI Foerste, 1885; Bull. Denisou Univ., vol. 1, p. 116. Soldiers' Home Quarry, Ohio. Clinton. - WERTHXERI Foerste, 1887; Bull. Denisou Univ., vol. 2, p. 109, pi. 8, figs. 22-25. DICELLOCEPHALUS Owen, 1852; Rep. Geol. Survey Wisconsin, Iowa and Minnesota, p. 573. Syu., Centropleura Aug., 1854; Pal. Scaud., p. 87, pi. 41, figs. 9-11. -•AFFIXIS Bill., 1865; Pal. Foss., vol. 1, p. 197, fig. 183 a, b. Point Levis, Quebec. Taconic. — ': AXGCSTIFROXS Wai., 1884; Pal. Eureka Dist. Mou. U. S. Geol. Survey, vol. 8, p. 42, pi. 10, figs. 1, 1 a, b. Secret Canon, etc., Nevada. Taconic. - BELLI Bill., 1860; Canadian Naturalist, vol. 5, p. 311, fig. 7. Point Levis, Quebec. Taconic. - BELLI Bill., 1865; Pal. Foss., vol. 1, p. 403, fig. 378. - P.ARABCEXSIS Whitf., 1878; Ann. Rep. Geol. Survey Wisconsin, 1877, p. 63. Devil's Lake region, 7 miles east of Baraboo. Lower Maguesian. I-.ARABUEXSIS Whitf., 1882; Geol Wisconsiu, vol. 4, p. 201, pi. 4, figs. 6-9. cf. Bathyurus capax Bill. - BILOBATUS H. & W., 1877; U. S. Geol. Expl. 40th Par., p. 226, pi. 2, fig. 36. Eureka Dist., Nevada. Taconic. 304 CALIFORNIA ACADEMY OF SCIENCES. DICELLOCEPHALUS. - BILOBATUS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 40. East side Sierra Valley, east of Pinnacle Peak, Eureka Dist., Nevada. — CRASSIMARGINATUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 344, pi. 27, fig. 14. Lagrange Mt., Minnesota. Potsdam. Syn., pepinensis (Hall); 16th Hep. New York State Cab. Nat. Hist. Expl, pi. 11, fig. 2. - 1 corax Bill., 1865; Pal. Foss., vol. 1, p. 334, figs. 322 a, b. Point Levis, Quebec. Referred to Olenoides? corax Wai., 1884; Ball. U. S. Geol. Survey, No. 30, p. 184. Cf. parabolina spinulosa Wahl. — CRISTATUS Bill., 1860; Canadian Naturalist, vol. 5, p. 312, fig. 10. Taconic. - CRISTATUS Bill., 1865; Pal. Foss., vol. 1, p. 404, fig. 384. Point Levis, Quebec. This species might be referred to the genus Olenoides. — DEVIXEI Bill., 1865; Pal. Foss., vol. 1, p. 195, figs. 180, 181. Point Levis, Quebec. Probably of the genus Ptychoparia. — EATONI Whitf., 1878; Ann. Eep. Geol. Survey Wisconsin, 1877, p. 65. Devil's Lake region, Baraboo, Wis. Lower Magnesian. - EATONI Whitf., 1882; Geol. Wisconsin, vol. 4, p. 202, pi. 4, figs. 11- 17; pi. 10, figs. 4, 5. Devil's Lake Dist., Baraboo, Wis. - ? EXPANSUS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 89, pi. 9, fig. 19. Prospect Mt., Secret Canon, etc., Nev. Taconic. - FINALIS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 89, pi. 12, figs. 12 a, b. Hamburg Eidge, Eureka Dist., Nev., Pogonip group. - FLABELLIFER H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. • 227, pi. 2, figs. 29, 30. Pogonip Mt. and Eureka Dist., Nev. Potsdam. flagicaudus White. (See Olenoides? flagricauda.) — granulosus Owen. (See Ptychaspis granulosa.} — ? gothicus H. & W. (See Dorypyge gothicus.) - HISINGERI Bill., 1865; Pal. Foss., vol. 1, p. 196, fig. 182. Point Levis, Quebec. Probably of the genus Ptychoparia. — INEXPECTANS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 90, pi. 1, fig. 10. Hamburg Ridge, Nev. Pogonip. — ? iowensis Owen. (See Lonchocephalus iowensis (Owen). - IDLE Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 43, pi. 10, fig. 19. Prospect Mt., Bullwhacker Mine, Nev. Taconic. - LATIFRONS Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 101. Potsdam. CATALOGUE OF TRILOBITES. 305 DICELLOCEPH ALUS . — LODENSIS Whitf., 1880; Ann. Rep. Geol. Survey Wisconsin, 1879, p. 51. Potsdam. - LODENSIS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 188, pi. 10, fig. 14; p. 341, pi. 27, figs. 12-13. — MAGNIFICUS Bill., I860; Canadian Naturalist, vol. 5, p. 307, fig. 5. This species has not the glabella or pygidium of a Dicellocephalus. — MAGNIFICUS Bill,, 1865; Pal. Foss., vol. 1, p. 399, figs. 376. Point Levis, Quebec. - ? marcoui Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 150, pi. 14, fig. 7. Referred to Olenoides marcoui Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 186, pi. 26, figs. 5, 5 a, b. Potsdam. — MABICA Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 44, pi. 10, fig. 13. Prospect Mt., Secret Canon, etc., Nev. Taconic. MEGALOP Bill., 1860; Canadian Naturalist, vol. 5, p. 311, fig. 9. Point Levis, Quebec. — MEGALOP Bill., 1865; Pal. Foss., vol. 1, p. 403, fig. 380. miniscaensis. (See Ptychaspis miniscaensis.) — . MINNESOTENSIS Owen. A very large sp. Asaphus Owen, 1848; Rep. Geol. Reconn. Chippewa Land Dist., p. 15, pi. 7, figs. 2, 3. Taconic. — MINNESOTENSIS Owen, 1852; Rep. Geol. Survey Wis., Iowa and Minn., p. 574, pi. 1, figs. 2, 10; pi. 10, tigs. 3, 6. — MINNESOTEXSIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 138, pi. 9, figs. 5-10; pi. 10, figs. 10-12; pi. 11, figs. 1-4, 6. Mazomania, Lagrange Mountain, Minnesota; Madison, Wis. — MINNESOTENSIS var. LIMBATUS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 141, pi. 9, fig. 12. Lagrange Mt., Minnesota. - MINNESOTENSIS var. Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 141, pi. 9, fig. 11; pi. 10, fig. 9. Lagrange Mt., Still- water, Minn. — MINNESOTENSIS W'inchell, 1864; Am. Jour. Sci., 2d series, vol. 37, p. 229. MINNESOTENSIS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 187, pi. 3, fig. 1. - MISA Hall, 1863; 16th Rep. State Cab. Nat. Hist., p. 144, pi. 8, fig. 15; pi. 10, figs. 4-8. Trempleau and Miniska, Wis. Potsdam. - MISSISQUOI Bill., 1865; Pal. Foss., vol. 1, p. 199. Phillipsburgh. cf. D. magnificus. - MITLTICINCTUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 226, pi. 2, fig. 37. Pogonip Mt., White Pine Dist., Nev. NASUTUS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 40, pi. 10, tig. 15. Prospect Mt., Secret Canon, etc., Nev. Taconic. 20 306 CALIFORNIA ACADEMY OF SCIENCES. DICELLOCEPHALUS. DOLICHOMETOPUS. OSCEOLA Hall, 1863; 16th Kep. New York State Cab. Nat. Hist., p. 146, pi. 7, fig. 49; pi. 10, fig. 18. Osceola Mills, Wis. Potsdam. - OSCEOLA Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 40, pi. 9, fig. 25. Prospect Mt., etc., Nevada. OWEXI Bill., 1860; Canadian Naturalist, vol. 5, p. 310, fig. 8. Point Levis, Quebec. — OWENI Bill., 1865; Pal. Foss., vol. 1, p. 402, fig. 379. — PAUPER Bill., 1865; Pal. Foss., vol. 1, p. 200. cf. D.sesostris. Point Levis, Quebec. - PEPINENSIS Owen, 1852; Eep. Geol. Survey Wis., Iowa and Minn., p. 574, pi. 1, figs. 9, 9 a; pi. 1 a, fig. 7. Potsdam. - PEPINENSIS Hall, 1863; 16th Hep. New York State Cab. Nat. Hist., p. 142, pi. 9, figs. 1-4; pi. 10, figs. 13-17. (Expl., pi. 11, fig. 2. See Dlcellocephalus crassimaryinatus) . Lagrange Mt., Minnesota. - PEPINENSIS Winchell, 1864; Am. Jour. Sci., 2d series, vol. 37, p. 229. — PLAXIFRONS Bill., I860; Canadian Naturalist, vol. 5, p. 309, fig. 6. Point Levis, Quebec. - PLANIFRONS Bill., 1865; Pal. Foss., vol. 1, p. 401, fig. 377. Point Levis. — quadriceps H. & W. Barrandia quadriceps? RICHMONDENSIS Wai., 1884; Pal. Eureka Dist. Mon U. S. Geol. Sur- vey, vol. 8, p. 41, pi. 10, fig. 7. Prospect Mt. and Secret Canon, Nev. Taconic. ROEMERI Shum., 1861; Am. Jour. Sci., 2d series, vol. 32, p. 220. Clear Creek, Buriiet county, Texas. Potsdam. SELECTUS Bill., 1865; Pal. Foss., vol. 1, p. 199. Point Levis, Quebec. SELECTUS Bill., 1865; Pal. Foss., vol. 1, p. 198. (See Ptychaspis selectus.) — xesostris Bill. (See Oryctocephalus sesostris.} — SPINIGER Hall, 1863; 16th Eep. New York State Cab. Nat. Hist., p. 143, pi. 10, figs. 1, 2, 3(?). Trernpleau, Wis. Potsdam. wahsatchensis. (See Olenoides wahsatchensis.) DIOXIDE Barr., 1847; Neues Jahrbuch fur Mineral., vol. 4, p. 391. Syn., Dione Barr.; Notice Prelim. Sil. Syst. Boheme, p. 33. Polytomurus Cord., 1847; Prodr., p. 153. ? PERPLEXA Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 67. Jump- ers Div. 4. Dipleura Green, 1832; Mon. Tril. North America, p. 79. (See Homalono- tus dekayi. ) Discranurus Con., 1841; 5th Kep. Pal. Dept. New York Geol. Survey, p. 48. (See Acidaspis hamata.) DOLICHOMETOPUS Aug., 1854; Paheont. Scand., p. 72. — ?CONVEXUS Bill., 1865; Pal. Foss., vol. 1, p. 269, fig. 253. Port aux Choix, N. F. CATALOGUE OF TRILOBITES. 307 DOLICHOMETOPUS. ENCRINURUS. — ? GIBBERRULUS Bill., 1865; Pal. Foss., vol. 1, p. 269, fig. 254. Port aux Choix, N. F. — ? RARUS Bill., 1865; Pal. Foss., vol. 1, p. 352, fig. 308. Oxford, Can- ada. Dorypyge Dames, 1884; China (Richthofen), vol. 4, p. 23. (See Olenoides.) DYSPLANCS Burm., 1843; Organization of Trilobites (Kay. Soc. ed., p. 205). ELLIPSOCEPHALUS Zenk., 1833; Beitriige Naturgeschichte der Urwelt, p. 51. — ARTICEPHALUS Matt., 1892; Canadian Record of Sci., Oct., 1892, p. 250, fig. 5 a-b. Hanford Brook, St. John county. Taconic. — CURTUS Whitf., 1878; Ann. Rep. Geol. Wisconsin, 1877, p. 58. Hud- son, Wis. Potsdam. — CURTUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 191, pi. 1, fig. 18. — GALEATUS Matt., 1892; Canadian Record of Sci., Oct., 1892, p. 249, fig. 4 a-e. Hanford Brook, St. John county, N. B. Taconic. ELIPTOCEPHALUS Emmons, 1844; Taconic Syst., p. 21, figs. 1-3. asaphoides. (See Olenellus asaphoides Emmons.) Embolimus Rominger, 1887; Proc. Acad. Nat. Sci. Phila., p. 16. (See Zacanthoides Wai.) rotundata. (See Bathyuriscus howelli.) spinosa. (See Olenoides spinosus.) EXCRINURUS Emm., 1844; Zur Naturg. Trilobiten, p. 16. — AMERJCAXUS Vogd., 1886; Des. New Crust. Clinton Group, Georgia, p. 1. Taylor's Ridge, Catoosa Station, Georgia. Clinton. — AMERICANUS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 102. — DELTOIDEUS Shum., 1855; Geol. Missouri, p. 198, pi. B, fig. 10. Cape Garardeau, Missouri. Silurian. Cryptonymus DELTOIDEUS Vogd., 1878; Mon. Genera Zethus, etc., p. 21. — DELTOIDEUS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 102. - EGANI Miller, 1879; Jour. Cincinnati Soc. Nat. Hist., vol. 2, p. 254, pi. 15, figs. 1, la, b. Joliet, Illinois. Niagara. — ELEGANTULUS Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 62. The Junipers, Div. 4. — ELEGAXTULUS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 102. excedrensis Saff., 1869; Geol. Tennessee, p. 290. (See Encrinurus varicoslatus Wai.) - MIRUS Bill., 1865; Pal. Foss., vol. 1, p. 292, fig. 282. Table Head and Pistolet Bay, N. F. Cryptonymus (Atractopyge) MIRUS Vogd., 1878; Mon. Genera Zethus, etc., p. 34. Amphion MULTISEGMENTATUS Portl., 1843; Geol. Londonderry, etc., p. 291, pi. 3, fig. 6. — MULTISEGMENTATUS Salt.; Mem. Geol. Survey United Kingdom, decade 7, pi. 4. 308 CALIFORNIA ACADEMY OF SCIENCES. ENCKINURUS. MULTISEGMENTATUS Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 61. Junction Cliff, Div. 1. Oryptonymus MULTISEGMENTATUS Vogd., 1878; Mon. Genera Zethus, etc., p. 29. NEREUS Hall, 1867; 20th Kep. New York State Cab. Nat. Hist., p. 375, pi. 21, fig. 15. Kacine, Wis. Niagara. NEREUS Hall, 1870; 20th Kep. New York State Cab. Nat. Hist., p. 425, pi. 21, fig. 15. Cryptonymus NEREUS Vogd., 1878; Mon. Genera Zethus, etc., p. 24, pi. 3, fig. 17. -ORNATUS H. & W., 1875; Pal. Ohio, vol. 2, p. 154, pi. 7, fig. 16. Eaton and Yellow Springs, Ohio. Niagara. Syn., Cybele punctata Hall, 1852; Pal. New York, vol. 2, p. 297, pi. A 66, figs. 1 a-k. Cryptonymus ORNATUS Vogd., 1878; Mon. Genera Zethus, etc., p. 23. . ORNATUS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 102. • PUNCTATUS (Briinnich) Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 61. East Point and Jumpers, Div. 4. • THRESHERI Foerste, 1887; Bull. Deuison Univ., vol. 2, p. 101, pi. 8, fig. 26. Clinton. TRENTONENSIS Wai., 1877; advance sheets 31st Kep. New York State Mus. Nat. Hist., p. 15. Clifton, Grant county, Wis., and Dun- leth, 111. Trenton. TRENTONENSIS Wai., 1879; 31st Kep. New York State Mus. Nat. Hist., p. 68. Cryptonymus TRENTONENSIS Vogd., 1878; Mon. Genera Zethus, etc., p. 28. VARICOSTATUS Wai., 1877; advance sheets 31st Rep. New York State Mus. Nat. Hist., p. 16. Mineral Point, Beloit and Janesville, Wis. Trenton. VARICOSTATUS Wai., 1879; 31st Kep. New York State Cab. Nat. Hist., p. 69. Cryptonymus VARICOSTATUS Vogd., 1878; Mon. Genera Zethus, etc., p. 27. - VARICOSTATUS Saff. & Vogd., 1889; Proc. Acad. Nat. Sci. Phila., p. 167, fig. Ceraurus VIGILANS Hall, 1847; Pal. New York, vol. 1, p. 245, pi. 65, figs. 2 a, 2 h. Middleville, N. Y. Trenton. Ceraurus VIGILANS Emmons, 1855; Am. Geology, vol. 1, pt.2, p. 217, pi. 15, figs. 2 a, 2 c. Cryptonymus VIGILANS Vogd., 1878; Mon. Genera Zethus, etc., p. 29, pi. 2, figs. 2 a, 2 h. Endymion Bill., 1862; Pal. Foss., vol. 1, p. 94. Changed by author to Endymionia. CATALOGUE OF TRILOBITES. 309 ENDYMIONIA. GKIFFITHIDES. ENDYMIOXIA Bill., 1865; Pal. Foss., vol. 1, p. 281. - MEEKI Bill., 1862; Pal. Foss., vol. 1, pp. 94, 281, tig. 84. Point Levis, Quebec. GRIFFITHIDES Portl., 1843; Geol. Kep. Londonderry, etc., p. 310. Phillipsia (Griffithides) BUFO M. & W., 1870; Proc. Acad. Nat. Sci. Phila., p. 52. Warsaw, Illinois. Keokuk. Phillipsia (Griffithides) BUFO M. & W., 1873; Geol. Survey Illinois, vol. 5. p. 528, pi. 19, fig. 5. — BUFO Vogd., 1887; Annals New York Acad. Sci., vol. 4, p. 95, pi. 3, figs. 4, 5, 10. Proetus GRAXULATUS Wetherby, 1881; Jour. Cincinnati Soc. Nat. Hist., vol. 4, p. 31, pi. 2, figs. 8, 8 a, 9, 9 a. Pulaski county, Ky. Chester. GRAXULATUS Vogd., 1887; Annals New York Acad. Sci., vol. 4, p. 101. Phillipsia (Griffithidest) lodiensis Meek. (See Brachymetopsislodiensis.) Phillipsia (Grifithides) PORTLOCKI M. & W., 1865; Proc. Acad. Nat. Sci. Phila., p. 268. Warsaw, Illinois. Keokuk. Phillipsia (Grffithides) PORTLOCKI M. & W., 1873; Geol. Survey Illi- nois, vol. 5, p. 5,25, pi. 19, fig. 6. PORTLOCKI Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 266, pi. 24, figs. 4, 4 a, b. - PORTLOCKI Vogd,, 1887; Annals New York Acad. Sci., vol. 4, p. 93, pi. 3, fig. 9. Phillipsia (Grffithides?) SAXGAMOXEXSIS M. & W., 1865; Proc. Acad. Nat. Sci. Phila., p. 270. Springfield, 111. Coal Measures. Phillipsia (Grijfithides?) SAXGAMOXEXSIS M. & W., 1873; Geol. Survey Illinois, vol. 5, p. 615, pi. 32, fig. 4. Phillipsia (Grifthides?) SANGAMONEXSIS Wh'ite, 1883; 13th Kep. Dept. Geol. Nat. Hist. Indiana, p. 174, pi. 39, figs. 4, 5. Phillipsia SAXGAMONEXSIS Herr., 1887; Bull. Denison Univ., vol. 2, p. 61, pi. 5, fig. 13. SAXGAMOXENSIS Vogd., 1887; Annals New York Acad. Sci., vol. 4, p. 99, pi. 3, figs. 7, 8. Phillipsia (Griffithides) SCITULA M. & W., 1865; Proc. Acad. Nat. Sci. Phila., p. 270. Springfield, 111.; Platte's mouth, Neb. Coal Measures. Phillipsia (Griffithides) SCITULA M. & W., 1873; Geol. Survey Illinois, vol. 5, p. 612, pi. 32, fig. 3. Phillipsia (Grffithides) SCITULA White, 1883; 13th Ann. Kep. Dept. Geol. Nat. Hist. Indiana, 1882, p. 173, pi. 39, figs. 6-9. Phillipsia SCITULA Meek, 1872, U. S. Geol. Survey Territories, Final Rep. Nebraska, p. 238, pi. 6, fig. 9. Phillipsia SCITULA, Herr., 1887; Bull. Denison Univ., vol. 2, p. 62. SCITULA Vogd., 1887; Annals New York Acad. Sci., vol. 4, p. 97, pi. 2, figs. 11-13. 310 CALIFORNIA ACADEMY OF SCIENCES. GRIFFITHIDES. HOMALONOTUS. — ? SEDALIEXSIS Vogd., 1888; Trans. New York Acad. Sci., vol. 7, p. 249. Sedalia, Missouri. Waverly. Phcethonides SEDALIENSIS (Vogd.) Herr., 1889; Bull. Deuison. Univ., vol. 4, p. 57. HARPES Goldf., 1839; Nova Acta Acad. Leop. Carol., vol. 19, p. 358. — AXTIQUATUS Bill., 1859; Canadian Naturalist, vol.4, p. 469, fig. 38. Mingan Islands. Chazy. — ANTIQUATUS Bill., 1863; Geol. Canada, p. 133, fig. 67. — CONSUETUS Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 64. South West Point, Div. 4. — DENTONI Bill., 1863; Canadian Naturalist, vol. 8, p. 36, fig. Trenton. — DENTONI Bill., 1865; Pal. Foss., vol. 1, p. 183, fig. 166. City of Ot- tawa, Canada. — ECANABI.E Hall, 1851; Kep. Geol. Lake Superior Land Dist. (Foster & Whitney), pt. 2, p. 211, pi. 27, fig. 2 a. Escanaba River, below Indian Creek. Trenton. — GRANTI Bill., 1865; Pal. Foss., vol. 1, p. 326, fig. 314. Stanbridge Range 6, lot 20. — OTTAWEISTSIS Bill., 1865; Pal. Foss., vol. 1, p. 182, fig. 165. Ottawa City, Canada. Trenton. HARPIDES Beyr., 1846; Untersuch. Trilobiten, p. 34. — ATLANTICUS Bill., 1865; Pal. Foss., vol. 1, p. 281, fig. 267. Portland Creek, N. F. — CONCENTRICUS Bill., 1865; Pal. Foss., vol. 1, p. 282, fig. 268. Portland Creek, N. F. — ? DESERTUS Bill., 1865; Pal. Foss., vol. 1, p. 333, fig. 321. Bedford, Canada. HAUSMAXNIA Hall, 1888; Pal. New York, vol. 7, p. xxxi. (Used as a sub- genus to Dalmanites.) Hemicrupturus Greene, 1832; Mon. Tril. N. A., p. 20. — clintoni. (See Calymene, clintoni Vanuxem.) HOLOMETOPUS Ang., 1854; Palaaont. Scaiid., p. 58. — ANGELINI Bill., 1862; Pal. Foss., vol. 1, p. 95, fig. 85; also p. 281. Point Levis, Quebec. HOMALONOTUS Koenig, 1825; Icones Foss. Sectiles, p. 4. Syn., Brongniartia Eaton, 1832; Geol. Text Book, p. 32, pi. 2, fig. 20 (in part). Dipleura Green, 1832; Monthly Am. Jour. Geol., p. 560; Mon. Tril. N. A., p. 78. Trimerus Green, 1832; Monthly Am. Jour. Geol., p. 560; Mon. Tril. N. A., p. 81. Plcesiacomia Cord., 1847; Prodr., p. 171. Brongniartia Salt., 1865; Mon. Brit. Tril., p. 104 (subgenus). Burmeisteria Salt., 1865; Mon. Brit. Tril., p. 105 (subgenus). Koenirjia Salt., 1865; Mon. Bri. Tril., p. 104 (subgenus). CATALOGUE OF TRILOBITES. 311 HOMALONOTUS. Axaphus CRYPTURUS Green, 1834; Traus. Geol. Soc. Pennsylvania, vol. 1, p. 37, pi. 4. Moose River at Auapolis Basin, Nova Scotia. Devonian. Asaphusf CRYPTURUS Green, 1835; Suppl. Mon. Tril. N. A., p. 18, cast 41. Syn., Asaphu* ditmarn'm Honeymau, 1879; Proc. Nova Scotia Inst., vol. 5, p. 18. Asaphus? CRYPTURUS Honeymau, 1888; Proc. Nova Scotia Inst., vol. 7, pt. 1, p. 63. DAWSOXI Hall, 1860; Canadian Naturalist, vol. 5, p. 155. Nova Scotia. Silurian. — DAWSONI Daw., 1878; Acadian Geol. (3d ed.), p. 606, fig. 214. Dipleura DEKAYI Green, 1822; Mon. Tril. N. A., p. 79, casts 30, 31, pi. 1, figs. 8, 9. Hamilton. Syu., Nuttainia sparsa Eaton, 1832; Geol. Text Book, p. 34. Nuttainia sparsa Green, 1832; Mou. Tril. N. A., p. 89, cast 35. - Dipleura DEKAYI Vanuxeni, 1842; Geol. New York, 3d Geol. Dist., p. 150, fig. 1. Dipleura DEKAYI Hall, 1843; Geol. New York, 4th Geol. Dist., p. 205, fig. 1. - DEKAYI Emmons, 1860; Manual Geol., pp. 146, 147, figs. 134, 135. — DEKAYI Hall, 1861; Des. New Species Foss, p. 85. DEKAYI Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 113. — DEKAYI Hall, 1877; Illus. Devonion Foss. Crust., pis. 2-5. - DEKAYI Hall, 1888; Pal. New York, vol. 7, p. 7, pi. 2, figs. 1-12; pi. 3, figs. 1-5; pi. 4, figs. 1-7; pi. 5, figs. 1-4. Marcellus shales at Flint Creek, Ontario county; Hamilton shales at Bear's Gulf, Schoharie county, and elsewhere in New York. Trimuriis DELPHINOCEPHALUS Green, 1832; Monthly Am. Jour. Geol., vol. 1, p. 559, pi. 0, fig. 1. Niagara. Trimerus DELPHINOCEPHALUS Green, 1832; Mou. Tril. N. A., p. 82, pi. 1, fig. 1, cast 32. Trimerus DELPHINOCEPHALUS Harlan, 1835; Trans. Geol. Soc. Penn- sylvania, vol. 1, p. 105. Syn., Brongniartia platycophala Eaton, 1832; Geol. Text Book, p. 32, pi. 2, fig. 20. Brongniartia platycephala Green, 1832; Mon. Tril. N. A., p. 91. Ogygies latisima Eaton, 1832; Am. Jour. Sci., 1st series, vol. 21, p. 136 (foot-note). DELPHINOCEPHALUS Murch., 1839; Sil. Syst., p. 651, pi. 7 bis, figs. 1 a, 1 b. Syn., ahrendii Roemer, 1843; Verst. Harzgebirges, p. 39, pi. 11, fig. 5. — DELPHINOCEPHALUS Hall, 1843; Geol. New York, 4th Geol. Dist., p. 103, fig. 34. 312 CALIFORNIA ACADEMY OF SCIENCES. HOMALONOTUS. ILL^NUS. — DELPHINOCEPHALUS Verueuil, Note sur la parallelisme, etc., p. 47. Syn., atlas Castelneau, 1843; Syst. Sil. de 1'Amer., p. 20, pi. 4, fig. 4. giganteus Castelneau, 1843; Syst. Sil de 1'Amer., p. 20, pi. 3, fig. 1. herculaneus Castelneau, 1843; idem, p. 20, pi. 4, fig. 5. — DELPHIXOCEPHALUS Hall, 1852; Pal.« New York, vol. 2, p. 309, pi. 68, figs. 1-14. Lockport and Kocliester, N. Y. — DELPHIXOUEPHALUS Salt., 1865; Mon. Brit. Tril., p. 113, pi. 11, figs. 1-10. - DELPHINOOEPHAUJS Hall, 1883; 12th Ann. Kep. Dept. Geol. Nat. Hist. Indiana, 1882, p. 332, pi. 34, figs. 17, 18. - DELPHIXOCEPHALUS? Hall, 1875; 28th Kep. New York State Mus. Nat. Hist., pi. 34, figs. 17, 18. — DELPHINOCEPHALUS Hall, 1879; 28th Kep. New York State Mus. Nat. Hist., p. 187, pi. 32, figs. 17, 18. T rimer UH JACKSONI Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 347. Huntingdon county, Penn. Devonian. - MAJOR Whitf., 1885; Bull. Am. Mus. Nat. Hist., vol. 1, No. 6, p. 193, pi. 22. 4th Binnewater and 5th Biiinewater, Ulster county, N. Y. Oriskany. - MAJOR Hall, 18S8; Pal. New York, vol. 7, p. 4, pi. 5 a, fig. 1. — TREXTONEX.SIS Simpson, 1890; Trans. Amer. Philos. Soc., p. 460, fig. 31, Reedsville, Mifiiu county, Penn. Trenton. - VAXUXEMI Hall, 1859; Pal. New York, vol. 3, p. 352, p. 73, figs. 9-14. Kingston, Ulster county, N. Y. Lower Helderberg. - VAxrxEMi Hall, 1888; Pal. New York, vol. 7, p. 11, pi. 5 b, figs. 1, 2. HOPOLICHAS Dames, 1877; Zeitschr. Deutsch. Geol. Gesell., p. 794. Type, Lichas (ffopolichas) tricuspidata Beyr. For a list of the species see Lichas. ILL^XURUS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 176. — COXVEXUS Whitf., 1878; Ann. Rep. Geol. Survey Wisconsin, 1877, p. 66. Devil's Lake region, Baraboo, Wis. Lower Magnesian. - COXVEXUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 203, pi. 4, figs. 3-5. — EUBEKENSIS Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 97, pi. 12, figs. 4, 4 a. East slope of the ridge east of Hamburg Kidge, etc., Nev. Pogonip. — QUADRATUS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 176, pi. 7, tigs. 52-57. Osceola Mills, St. Croix River, Wis. Potsdam. ILUEXUS Dalm., 1826; Paired., p. 50. Syn., Actinolobus Eichw., 1860. AlceMe Cord., 1847. Cryptonymus Eichw., 1825 (in part), not Cryptonymus Eichw., 1840. Deucalion Chtchegloff, 1827. CATALOGUE OF TRILOBITES. 313 ILL^INUS. Ectill&nus Salt., 1866 (subgeuus). Hydrolcenus Salt., 1866 (subgeuus). Illcenopsis Salt., 1865 (subgenus). Octillcenus Salt., 1866 (subgenus). Thaleops Con., 1843. - VMHIGUUS Foerste, 1885; Bull. Deuison Univ., vol. 1, p. 106, pi. 14, figs. 9 a, b; figs. 10 a, b, c; fig. 11. Dayton, Huffman's Quarry, Ohio. Clinton. - AMBIGUUS Foerste, 1877; Bull. Deuison Univ., vol. 2, p. 94. - AMBIGUUS Foerste, 1886; 15th Ann. Rep. Geol. Nat. Hist. Survey Minnesota, p. 480, fig. 3. - AMBIGUUS Foerste, 1889; Proc. Boston Soc. Nat. Hist., vol. 24, p. 267. - AMERICAXUS Bill., 1859; Canadian Naturalist, vol. 4, p. 371. Ottawa City, Canada. Trenton. - AMERICANUS Bill., 1865; Pal. Foss., vol. 1, p. 329, fig. 316 a-d, tig. 318. — AXGUSTICOLLIS Bill., 1859; Canadian Naturalist, vol. 4, p. 377, fig. 10 a-d. Island of St. Joseph, Grant's Island, Lake Huron, also at the Falls of La Petite Chaudiere. Trenton. - ARCTURUS Hall, 1847; Pal. New York, vol. 1, p. 23, pi. 4 bis, fig. 12. Chazy village, N. Y. Chazy and Trenton. — ARCTURUS Emmons, 1855; Am. Geology, vol. 1, pt. 2, p. 235, pi. 3, fig. 12. - ARCTURUS (Hall) Bill., 1859; Canadian Naturalist, vol. 4, p. 379. Miu- gan Islands. - ARCTURUS Bill., 1865; Pal. Foss., vol. 1, p. 279, fig. 265. - ARMATUS Hall, 1867; 20th Eep. New York State Cab. Nat. Hist., p. 330, pi. 22, figs. 1, 2. Bridgeport, Grafton and Racine, Wis. Niagara. - ARMATUS Hall, 1870; 20th Rep. New York State Cab. Nat. Hist., p. 418, pi. 22, figs. 1, 2; pi. 25, fig. 22. - ARMATUS? Hall, 1875; 28th Rep. New York State Mus. Nat. Hist., pi. 32, figs. 19, 20. - ARMATUS? Hall, 1879; 28th Rep. New York State Mus. Nat. Hist., p. 189, pi. 32, figs. 19, 20. - ARMATUS Hall, 1883; 12th Ann. Rep. Dept. Geol. Nat. Hist. Indiana, 1882, p. 335, pi. 34, figs. 19, 20; pi. 33, fig. 12. - BARRIENSIS (Murch.) Hall; Trans. Albany Inst., vol. .4, p. 227; ab- stract, p. 33, May, 1863. - BARRIENSIS (Murch.) Roeiner, 1860; Die Sil. Fauna W. Tennessee, p. 83, pi. 5, fig. 23. Niagara. Bumastus BARRIEXSIS (Murch.), 1839; Sil. Syst., p. 6515, pi. 7 his, figs. 3 a-d, pi. 14, fig. 7 (in part). BARRIENSIS Salt., JS59; Murchisou's Siluria (2d ed.), pi. 17, figs. 9-11. 314 CALIFORNIA ACADEMY OP SCIENCES. ILL^NUS. - Bumastus BARRIENSIS Hall, 1867; 20th Kep. New York State Cab. Nat. His., p. 332, pi. 22, figs. 4-11. Racine, Waukesha, Wau- watosa and other places. — BAYFIELDI Bill., 1859; Canadian Naturalist, vol. 4, p. 369, figs. 4-6. Mingan Islands. Chazy. — CLAVIFRONS Bill., 1859; Canadian Naturalist, vol. 4, p. 379. Mingan Islands. Chazy and Trenton. — conradi Bill., 1859; Canadian Naturalist, vol. 4, p. 372, figs. 7-9. (See Panderia conradi.) La Petite Chaudiere, Township of Hull. Trenton. — COXSIMILIS Bill., 1865; Pal. Foss., vol. 1, p. 277, figs. 263 a-c; p. 331, fig. 317. (cf. Illfenus esmarki Schloth.) Point Rich and Table Head, N. F. — CONSOBRINUS Bill., 1865; Pal. Foss., vol. 1, p. 280, fig. 268; p. 332, fig. 320. Cow Head, N. F. — CORNIGERUS Hall, 1872; 24th Rep. New York State Cab. Nat. Hist., p. 186, pi. 13, figs. 20, 21. Bear-grass Creek near Louisville, Ky. Clinton. Entomostracetex CRASSICAUDA Wahl., 1821; Nova Acta. Soc. Scient. Upsal., vol. 8, p. 27, pi. 2, figs. 5, 6 (not pi. 7, figs. 5, 6). — CRASSICAUDA Holm, 1882; Sveiiska Vet.-Akad. Handl., vol. 7, No. 3, pi. 2, figs. 21-27. — CRASSICAUDA? Hall, 1847; Pal. New York, vol. 1, p. 24, pi. 4 bis, fig. 13; pi. 60, figs. 4 a-d. Carlisle, Penn. - CRASSICAUDA (Wahl.) M. & W., Geol. Survey Illinois, vol. 3, p. 322, pi. 3, figs, la, 1 b. cf. Illcenus comsimilis and /. esmarkii. — CUNICULUS Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., p. 377, pi. 22, fig. 12. Wauwatosa, Wis. Niagara. — CUNICULUS Hall, 1870; 20th Rep. New York State Cab. Nat. Hist., p. 421, pi. 22, fig. 12 (rev. ed.). - DAYTONENSIS H. & W., 1875; Pal. Ohio, vol. 2, p. 119, pi. 5, figs. 14- 16. Dayton, Ohio. Clinton. — DAYTOXENSIS Foertse, 1885; Bull. Denison Univ., vol. 1, p. 104, pi. 14, figs. 4 a, b; figs. 6, 7, 7 a, b, c. — DAYTONENSIS Foerste, 1887; Bull. Deiiisoii Univ., vol. 2, p. 93, pi. 8, figs. 1-7. — FRATERNUS Bill., 1865; Pal. Foss., vol. 1, p. 276, figs. 262 a, b. Point Rich, Table Head, etc., N. F. — GLOBOSUS Bill., 1859; Canadian Naturalist, vol. 4, p. 367, figs. 1-3. Mingan Island, also Island of Montreal. Chazy. - (Bumastus) GRAFTONENSIS M. & W., 1870; Proc. Acad. Nat. Sci. Phila.. p. 54. Graf ton, Illinois. Niagara. — (Bumastus) GRAFTOXEXSIS M. & W., 1875; Geol. Survey Illinois, vol. 6, p. 508, pi. 25, fig. 4. CATALOGUED OF TRILOBITES. 315 ILL^ENUS. — GRAXDIS Bill., 1859; Canadian Naturalist, vol. 4, p. 380. Anticosti. Hudson River. — HERRICKI Foerste, 1886; 15th Ann. Rep. Geol. Nat. Hist. Minnesota, p. 479, fig. 2. Minneapolis, Minnesota. Trenton. — IMPERATOR Hall, 1861; Rep. Progress Geol. Survey Wisconsin, p. 49. Niagara. - IMPERATOR Hall, 1867; 20th Rep. New York State Cab. Nat. His., p. 332, pi. 22, figs. 15-17; pi. 23, figs. 2, 3. Racine and Waukesha. - IMPERATOR Hall, 1870; 20th Rep. New York State Cab. Nat. Hist., p. 420, pi. 22, figs. 15-17; pi. 23, figs. 2, 3. - IMPERATOR Whitf., 1882; Geol. Wisconsin, vol. 4, p. 306, pi. 21, figs. 4,5. - IXCERTCS Bill., 1865; Pal. Foss., vol. 1, p. 332, fig. 319. Stanbridge Range 6, lot 20. INDETERMIXATUS Wai., 1877; Advanced sheets 31st Rep. New York State Mus. Nat. His., p. 19. Russia, N. Y., Plattsville, Wis. Trenton. IXDETERMIXATUS Wai., 1879; 31st Rep. New York State Mus. Nat. His., p. 70. - IXSIGXIS Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., p. 331, figs. 5, 6; pi. 22, figs. 13, 14. Waukesha and Milwaukee, Wis. Niagara. — (Bumastus) INSIGNIS Salt., 1867; Mon. Brit. Tril., p. 207. IXSIGNIS Hall, 1870; 20th Rep. New York State Cab. Nat. Hist., p. 419, figs. 10, 11; pi. 22, figs. 13, 14. — (Bumastus) IXSIGNIS Meek, 1873; Pal. Ohio, vol. 1, p. 189, pi. 15, figs. 5 a-c. IXSIGXIS Holm., 1882; De Svenska Art. Tril. Illrenus, p. 127. IXSIGNIS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 305, pi. 21, figs. 6-10. IXSIGXIS Foerste, 1886; 15th Ann. Rep. Geol. Nat. Hist. Survey Min- nesota, p. 481. loxus Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., p. 378, pi. 22, figs. 4-10. cf. Illcenus barriensia. Racine, etc., Wis. Niagara . (Bumastus) IOXTJS Hall, 1870; 20th Rep. New York State Cab. Nat. Hist., p. 420, pi. 22, figs. 4-10. - (Bumastus) loxus Hall, 1883; 12th Ann. Rep. Dep. Geol. Nat. Hist. Indiana, 1882, p. 335, pi. 38, figs. 13, 14. — loxus Whitf., 1882; Geol. Wisconsin, vol. 4, p. 304, pi. 21, figs. 11, 12. — (Bumastus) loxus Hall, 1883; Trans. Albany Inst., vol. 10, p. 76. loxus Foerste, 1889; Proc. Boston Soc. Nat. Hist., vol. 24, p. 268. LATIDORSATA "ttall, 1847; Pal. New York, vol. 1, p. 230, pi. 60, figs. 6 a, b. Near Watertowii, N. Y. Trenton. 316 CALIFORNIA ACADEMY OF SCIENCES. ILL^ENUS. - MADISOXIANUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 307, pi. 20, figs. 8, 9. Locality not given. (See P. niagarensis.) Niagara. — MADISONIANUS Foerste, 1885; Bull. Denison Univ., vol. 1, p. 106, pi. 14, figs. 1 a, b and 2 a, b. Soldiers' Home Quarry, Ohio. — MADISONIANUS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 93, pi. 8, figs. 8-10. Clinton. - MILLERI Bill., 1859; Canadian Naturalist, vol. 4, p. 375, fig, 10. City of Ottawa, etc., Canada. Trenton. — MILLERI Wai., 1877; Advanced sheets 31st Eep. N. Y. State Mus. Nat. Hist., p. 20. Kussia, N. Y., and Plattsville, Wis. - MILLERI Wai., 1879; 31st Kep. N. Y. State Mus. Nat. Hist., p. 71. — (Nileus) MINNESOTENSIS Foerste, 1886; 15th Ann. Kep. Geol. Minne- sota, p. 478, fig. 1. Minneapolis, Minnesota. Trenton. — niagarensis Whitf., 1880; Ann. Kep. Geol. Wisconsin, 1879, p. 68. Name changed by request of the Wisconsin Geological Survey, from Illcenus niagarensis to IllcKnus madisonianus. Explanation omitted in the Final Keport Pal. Wisconsin, p. 307. Niagara. — ORBICAUDATUS Bill., 1859; Canadian Naturalist, vol. 4, p. 379. Gemache Bay, Auticosti. Hudson. Thaleops OVATUS Con., 1843; Proc. Acad. Nat. Sci. Phila., vol. 1, p. 332. Trenton. Thaleops (Illcunus) OVATUS Hall, 1847; Pal. New York, vol. 1, p. 259, pi. 67, figs. 6 a-b. Mineral Point, Wis. - OVATUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 238, pi. 5, figs. 1, 2. Beloit, Wis. — PTEROCEPHALUS Whitf., 1878; Ann. Kep. Geol. Wisconsin, 1877, p. 87. Pewaukee, Wis. Niagara. - PTEROCEPHALUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 309, pi. 20, figs. 10-12. — STIMULATOR Bill., 1865; Pal. Foss., vol. 1, p. 337, figs. 315 a, b. Stan- bridge Kange 6, lot 20. — TAURUS Hall, 1861; Kep. Prog. Geol. Survey Wisconsin, p. 49. Beloit, Mineral Point, Wis.; Kockford, Illinois. Niagara. - TAURUS M. & W., 1865; Geol. Survey Illinois, vol. 3, p. 320, pi. 3, fig. 2. Bumastus TRENTONENSIS Emmons, 1842; Geol. New York, 3d Geol. Dist., p. 390, fig. 1. Hogansburg, Franklin, N. Y. Trenton. Bumastus TRENTONENSIS, 1854; 7th Rep. New York State Cab. Nat. Hist., p. 64, fig. 1. (Bumastus) TRENTONENSIS Emmons, 1855; Am. Geology, vol. 1, pt. 2, p. 315, pi. 15, fig. 13. — TRENTONENSIS Hall, 1847; Pal. New York, vol. 1, p. 230, pi. 60, fig. 5. - TUMIDIFRONS Bill., 1865; Pal. Foss., vol. 1, p. 278, fig. 264. Cow Head, N. F. CATALOGUE OF TRILOBITES. 317 ILL^NUS. LICHAS. — VINDEX Bill, 1865; Pal. Foss., vol. 1, p. 179, fig. 160. Mingan Islands. Chazy. — (Bumastus) WORTHENANUS W. & M., 1866; Mem. Boston Soc. Nat. His., vol. 1, pt. 1, p. 105, pi. 3, fig. 13 (referred by Hall, 20th Kep. New York State Cab. Nat. Hist., to Illcenus armatus Hall). Isoletus De Kay, 1825; Annals Lyceum Nat. Hist. New York, vol. 1, p. 174. canalis. (See Asaphus canatis.) cyclops. (See Asaphus platycephalus.) gigas. (See Asaphus platycephalus.) maximus. (See Asaphus maximus.) — megalops Green, 1832; Mon. Tril. N. A., p. 70, cast 75. megistos. (See Asaphus maximus.) platycephalus. (See Asaphus platycephalus). planus. (See Asaphus platycephalus.) stegops. (See Asaphus platycephalus.) vigilans. (See Asaphus vigilans.) LEPTOPLASTUS Ang., 1854; Palaeont. Scand., p. 46. — LATUS Matt., 1891; Canadian Kecord of Sci., 1891, p. 462, figs, 1-3. — LATUS Matt., 1891; Trans. Eoyal Soc. Canada, vol. 9, p. 54, pi. 13, figs. 10 a, b. St. John, N. B. For other species see Anomocare. LICHAS Dalm., 1826; Palaead., pp. 53, 71, pi. 6, fig. 1. Syn., Platynotus Con., 1838; Geol. Survey New York, Rep. Pal Dept., p. 118. Arges Gold., 1839 (in part). Metopias Eichw., 1842; Die Urwelt Russ., p. 62, pi. 3, figs. 21-23. Arctinurus Cast., 1843; Syst. Sil. de 1'Amer., p. 21. Nuttainia Portl. & Emm. Corydocephalus Cord., 1847; Prodr., p. 255. Dicranopeltis Cord., 1847; Prodr., p. 257. Acanthopyge Cord., 1847; Prodr., p. 260. Dicranogmus Cord., 1847; Prodr., p. 261. Subgenera, Hoplolichas Dames, 1877; Zeitschr. Deutsch. Geol. Gesell., p. 794. Type, Hoplolichas tricuspidata Beyr. Conolichas Dames, 1877; Zeitschr. Deutsch. Geol. Gesell., p. 806. Type, Conolichas cequiloba Steinh. armatus Hall. (See Acidatpis eriopis Hall.) — (Hoplolichas) BICOMES Ulreth, 1892; The Arner. Geol., vol. 10, p. 272, fig. Spring Valley, Minn. Hudson. - BIGSBYI Hall, 1859; Pal. New York, vol. 3, p. 364, pi. 77, figs. 1-8. Coeymans, Schoharie and Carlisle. Lower Helderberg. — . (Conolichas) BIGSBYI ? 'Hall, 1888; Pal. New York, vol. 7, p. 80, pi. 19 a, fig. 1. Paradoxides BOLTONI Bigsby, 1825; Jour. Acad. Nat. Sci. Phila., vol. 4, p. 365, plate. Lockport, N. Y. Niagara. 318 CALIFORNIA ACADEMY OF SCIENCES. LICHAS. Paradoxides BOLTONI Green, 1832; Monthly Am. Jour. Geol., etc., vol. J, p. 560, pi. 1, fig. 5. Paradoxides BOLTONI Green, 1832; Mon. Tril. North America, p. 60, pi. 1, fig. 5. Paradoxidea BOLTONI Haiian, 1834; Trans. Geol. Soc. Penn., vol. 1, p. 103. Paradoxides BOLTONI Harlaii, 1835; Med. and Phys. Kesearches, p. 303. Platynotus BOLTONI Con., 1838, Hep. Pal. Dept. Geol. Survey New York, p. 118. Arctinurus BOLTONI Cast., 1843; Sys. Sil. del'Amer., p. 21, pi. 3, fig. 3. - BOLTONI Hall, 1852; Pal. New York, vol. 2, p. 311, pi. 69; pi. 70, figs. 1 a-i. - BOLTONI M. & W., 1875, Geol. Survey Illinois, vol. 6, p. 508, pi. 25, fig. 5. — BOLTONI var. OCCIDENTALS Hall, 1863; Trans. Albany Iiist., vol. 4, p. 223; abstract, p. 29. — BOLTONI var. OCCIDENTALS Hall, 1875; 28th Rep. New York State Mus. Nat. Hist. Expl., p. 34, figs. 8-11. - BOLTONI var. OCCIDENTALS Hall, 1879; 28th Rep. New York State Mus. Nat. Hist., p. 198, pi. 34, figs. 8-11. - BOLTONI var. OCCIDENTALS Hall, 1883; 12th Ann. Rep. Dept. Geol. Nat. Hist. Indiana, 1882, p. 334, pi. 36, figs. 8, 11, 12 (?). — BOLTONI var. OCCIDENTALS Foerste, 1889; Proc. Boston Soc. Nat. Hist., vol. 24, p. 272. - BBEVICEPS Hall, 1863; Trans. Albany Iiist., vol. 4, p. 222; abstract p. 28. New York and Indiana. Niagara. - BREVICEPS H. & W., 1875; Pal. Ohio, vol. 2, p. 156, pi. 6, fig. 17. - BREVICEPS Hall, 1875; 28th Rep. New York State Mus. Nat. Hist. Expl., pi. 34, figs. 1-7. - EEEVICEPS Hall, 1879; 28th Rep. New York State Mus. Nat. Hist., p. 197, pi. 34, figs. 1-7. - BREVICEPS Hall, 1883; 12th Ann. Rep. Dept. Geol. Nat. Hist. Indiana, 1882, p. 343, pi. 36, figs. 1-7. — BREVICEPS Foerste, 1885; Bull. Denisoii Univ., vol. 1, p. 112, pi. 13, figs. 2, 6 a, b. Clinton. — BREVICEPS Foerste, 1887; Bull. Denison Univ., vol. 2, p. 98, pi. 8, figs. 18, 19. Not Lichas breviceps Hall, 1867; 20th Rep. New York State Cab. Nat. Hist., p. 377, pi. 21, figs. 12-14; also rev. ed., p. 424, pi. 21, figs. 12-14. (See Lichas emarginatus.) — CANADENSIS Bill., 1866; Catalogue Sil. Foss. Anticosti, p. 65, fig. 22. East Point, Div. 3. - CHAMPLAINENSIS Whitf., 1886; Bull. Am. Mus. Nat. Hist. New York, vol. 1, No. 8, p. 342, pi. 23, figs. 6-8. Isle La Motte, Lake Cham- plain, N. Y. Birdseye. CATALOGUE OF TRILOBITES. 319 LICHAS. - (Arges) CONTUSUS Hall, 1888; Pal. New York, vol. 7, p. 8.3, pi. 19 b, figs. 3-6. Clarksville, Cherry Valley, etc., N. Y. Upper Helderberg. - ( UCULLUS M. & W., 1865; Proc. Acad. Nat. Sci. Phila., p. 266. Alex- ander count}', Illinois. Trenton. — CUCULLUS M. & W., 1866; Geol. Survey Illinois, vol. 3, p. 299, pi. 1, figs. 6 a-c. - DECIPIENS W. & M., 1866; Mem. Boston Soc. Nat. Hist., vol. 1, pt. 1, p. 104, pi. 3, fig. 11. Bridgeport, Illinois. Niagara. — (Ceratolichas) DRACON Hall, 1888; Pal. New York, vol. 7, p. 85, pi. 19, figs. 14-17. Schoharie and Le Roy. N. Y. Hall, 1876; Illus. Devonian Foss. Crust., pi. 19, figs. 2, 3. Upper Helderberg. - EMARGINATUS Hall, 1879; 28th Rep. New York State Mus. Nat. Hist., p. 199. Waldron, Indiana. Niagara. Syn., Lichas breviceps Hall; 20th Rep. New York State Cab. Nat. Hist., p. 377, pi. 21, figs. 12-14, rev. ed., p. 424, pi. 21, figs. 12-14. — ERIOPIS, Hall. Corniferous and Upper Helderberg. Syn., Lichas armatus Hall, 1861; Des. New Species Foss., p. 81. Lichas armatus Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 109. - ERIOPS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 226. Acidaspis (Teratasj^) ERIOPS Hall, 1876; Illus. Devonian Foss. Crust., pi. 19, figs. 4-7, 10, 11. Acidaspis (Terataspis?) sp.? Hall, 1876; Illus. Devonian Foss. Crust., pi. 18, fig. 12. - (Conolichas) ERIOPS Hall, 1888; Pal. New York, vol. 7, p. 78, pi. 19 a, figs. 2-13, 15, 16. Schoharie, also in boulders Canandaigua, N. Y. — GRANDIS Hall, 1861; Des. New Species Foss., p. 82. Schoharie, N. Y. Upper Helderberg. - GRANDIS Hall, 1862; loth Rep. New York State Cab. Nat. Hist., p. 110. — GRANDIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 223. (Subgenus Terataspis.) Syn., Lichas superbus Bill., 1875; Canadian Naturalist, vol. 7, p. 239. Acidaspis (Terataspis) GRANDIS Hall, 1876; Illus. Devonian Foss. Crust., pis. 17, 18. - (Terataspis) GRANDIS Hall, 1888; Pal. New York, vol. 7, p. 73, pi. 17, figs. 1-6; pi. 18, figs. 1, 2; pi. 19, figs. 1-7. Schoharie, Thomp- son's Lake, Knox, and near Clarksville, N. Y., Cayuga, Ontario. - (Ceratolichas) GRYPS Hall, 1888; Pal. New York, vol. 7, p. 84, pi. 19 b, figs. 7-13. Schoharie county, N. Y. Upper Helderberberg. Corniferous. (Acidaspis n. sp.?) Hall, 1876; Illus. Dev. Crust., pi. 19, fig. 1 (not figs. 2, 3). 320 CALIFORNIA ACADEMY OF SCIENCES. LICHAS. LLOYDIA. — HARRISI Miller, 1878; Jour. Cincinnati Soc. Nat, Hist., vol. 1, p. 106, pi. 3, fig. 9. Waynesville, Ohio. Hudson. - (Conolichas) HISPIDUS Hall, 1888; Pal. New York, vol. 7, p. 77, pi. 19 a, figs. 14, 17, 18. Upper Helderberg group, Schoharie grit near Clarksville, Corniferous limestone, Le Koy, N. Y. Syn., Acidaspis (Terataspis) eriops Hall, 1876; Illus. Dev. Foss., pi. 19, figs. 8, 9. Upper Helderberg. - (Hoplolichas) HYUEUS Hall, 1898; Pal. New York, vol. 7, p. 81, pi. 19 b, figs. 1, 2. Province of Ontario. Upper Helderberg. — - JUKESI Bill., 1865; Pal. Foss., vol. 1, p. 282, fig. 260; also p. 335, fig. 323. Cow Head, N. F. — MINGANENSIS Bill., 1865; Pal. Foss., vol. 1, p. 181, figs. 163 a, b. Large Island, Mingan Islands. Chazy and Trenton. — NEREUS Hall, 1863; 16th Kep. New York State Cab. Nat. Hist., p. 226. No description or locality mentioned. - OBVIUS Hall, 1870; 20th Hep. New York State Cab. Nat. Hist., p. 424, pi. 25, fig. 19. Lyons, Iowa. Niagara. Calymene PHLYCTANODES Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 167. Niagara. Arges PHLYCTANODES Hall, 1852; Pal. New York, vol. 2, p. 314, pi. 70, figs. 2 a, c. Near Albion, Orleans Co., N. Y. — (Dicranogmus) PTYONURUS Hall, 1888; Pal. New York, vol. 7, p. 86, pi, 19 b, figs. 19-21. Schoharie, N. Y. Niagara. — - PUGNAX W. & M., 1866; Mem. Boston Soc. Nat. Hist., vol. 1, pt. 1, p. 103, pi. 3, fig. 10. Bridgeport, 111. Niagara. — PUGNAX Hall, 1867; 20th Kep. New York State Cab. Nat. Hist., p. 393 (rev. ed., p. 424, pi. 25, fig. 20). — PUSTULOSUS Hall, 1859; Pal. New York, vol. 3, p. 366, pi. 77, figs. 9- 12; pi. 78, figs. 1-6, fig. 7 (?). Albany and Schoharie Co., N. Y. Lower Helderberg. — PUSTULOSUS Hall, 1876; Illus. Devonian Foss. Crust., pi. 19, fig. 13. — (Conolichas) PUSTULOSUS Hall, 1888; Pal. New York, vol. 7, p. 80, pi. 19, figs. 8, 10, 11. - Hoplolichas ROBBINSI Ulrich, 1892; The Amer. Geol., vol. 10, p. 271, fig. Near Wykoff, Minn. Trenton. — superbus Bill., 1875; Canadian Naturalist, new series, vol. 7, p. 239. (See Lichas grandis.) Comiferous. Asaphus? TRENTONENSIS Con., 1842; Jour. Acad. Nat. Sci. Phila., vol. 8, p. 277, pi. 16, fig. 16. Trenton. Platynotus TRENTONENSIS Hall, 1847; Pal. New York, vol. 1, p. 235, pi. 64, figs. 1 a-e. Middleville, etc., N. Y. — TRENTONENSIS Miller, 1874; Cincinnati Quart. Jour. Sci., vol. 1, p. 127. LLOYDIA Vogd., 1889 (generic name, with Bathyurus bituberculatus Bill, for its type). CATALOGUE OF TRILOBITES. 321 LONCHOCEPHALUS. Loganellus Devine, 1863; Canadian Naturalist, vol. 8, p. 93. (See Pty- choparia, Crepicephalus and Olenus.) — logani Deviue, 1863; Canadian Naturalist, vol. 8, p. 95. See Ptycho- paria logani.) Point Levis, Quebec. Olenus? logani Bill., 1865; Pal. Foss., vol. 1, p. 201, figs. 185, 186. — quebecensis Bill., 1865; Pal. Foss., vol. 1, p. 203. (See Ptychoparia logani.) LONCHOCEPHALUS Owen, 1852; Eep. Geol. Survey Wisconsin, Iowa, and Minnesota, p. 576. Dr. Owen in his report, Geol. Survey, Wis., Iowa and Minnesota, described four new genera of trilobites under the names of Dikelocephalus, Lonchocephalus, Crepicephalus and Menocephalus. The second genus is now classed as a synonym to Anomocare with Anomocare chippeivcensis, and A. hamulus, de- scribed in the report. There is a third species mentioned by Owen on p. 624, and also plate 1 a, fig. 15, Pygidium of Lonchocephalus (?) with long, slender, divergent caudal spines; also a similar pygidium, figured plate 1 a, fig. 13, as Dikelocephalus (?) iowensis. Walcott, Bull. U. S. Geol, Survey, N. 10, p. 36, 'places the latter species under a subgenus to Ptychoparia, using Dr. Owen's Crepi- cephalus for it on account of the peculiar pygidium, overlooking, however, the fact that Owen has referred a similar pygidium directly to his genus Lonchocephalus on p. 624 of his report. Under the law of priority the genus Ptychoparia replaces Crepicephalus, and the later name should be cancelled in toto, and not be retained in a modified sense. Lonchocephalus forms an exception to this rule, if we divide the genus into two sections, retaining Anomo- care for hamulus and chippewcensis, and Lonchocephalus for the species described by Dr. Owen with long, slender, divergent caudal spines which includes Dikelocephalus ( ?) ioicensis. — sp.? Owen, 1852; Rep. Geol. Survey, Wisconsin, Iowa and Minnesota, p. 624. CREPICEPHALUS ANGUSTA Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 208, pi. 28. figs. 2, 2 a, b. Pioche, also 11 miles north of Bennet's Springs, Highland Eange, Nevada. Taconic. CREPICEPHALUS ANGUSTA Wai., 1890; 10th Eep. U. S. Geol. Survey, p. 655, pi. 96, figs. 9, 9 a, b. Dicellocephalus? IOWENSIS Owen, 1852; Eep. Geol. Wisconsin, Iowa and Minnesota, p. 575, pi. 1, fig. 4; pi. 1 a, fig. 13. Mountain Island and near the mouth of Black Eiver. Undetermined Trilobite, Owen, 1848; Eep. Geol. Eeconnoissance Chippewa Land Dist., p. 14, pi. 7, fig. 1. Taconic. Conocephaliles IOWENSIS Shum., 1863; Trans. Acad. Sci. St. Louis, vol. 2, p. 102. 21 322 CALIFORNIA ACADEMY OF SCIENCES. LONCHOCEPHALUS. MICRODISCUS. Conocephalites IOWEXSIS Hall, 1863; 16th Rep. New York State Cab. Nat. Hist., p. 162, pi. 7, fig. 33; pi. 8, figs. 10-12 and 30. Crepicephalus IOWEXSIS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 36. Crepicephalus IOWENSIS Wai., 1886, Bull. U. S. Geol. Survey, No. 30, p. 207. — sp.? undet. Oweu, 1852; Rep. Geol. Wisconsin, Iowa and Minnesota, p. 624, No. 8, table 1 a, fig. 15. Near Mountain Island. Crepicephalus LILIANA Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 209, pi. 28, figs. 3, 3 a, c. Pioche, also 11 miles north of Bennet Springs, etc., Nevada. Tacouic. Crepicephalus LILIANA Wai., 1890; 10th Bep. U. S. Geol. Survey, p. 653; pi. 96, fig. 4, 4 a. Olenellus zone. MEGALASPIS Aug., 1852; Paloeont. Scaud., p. 15. — BELEMNURUS White, 1874; Rep. Invert. Foss., etc., p. 11. BELEMNURUS White, 1877; Geol. Survey. W. 100th Meridian, Pal., vol, 4, p. 59, pi. 3, fig. 9. Queen Spring Hill, Schell Creek, Nev. Asaphus (Meylaspis) GOXIOCERUS Meek, 1873; 6th Ann. Rep. Geol. Survey Territories, 1872, p. 480. Quebec. MENOCEPHALUS Owen, 1852; Rep. Geol. Survey Wisconsin, Iowa and Min- nesota, p. 577. Dr. D. D. Owen refers one species to this germs, Menocephalus minnesotensis, pi. 1, fig. 11, which has a highly arched and hemispherical glabella. GLOBOSUS Bill., 1860; Canadian Naturalist, vol. 5, p. 317, figs. 17-19. Point Levis. Taconic. GLOBOSUS Bill., 1865; Pal. Foss., vol. 1, p. 408, figs. 388 a-c. MINNESOTENSIS Owen, 1852; Rep. Geol. Survey Wisconsin, Iowa and Minnesota, p. 577, pi. 1, fig. 11. From Miniskah. Taconic. SALTERI Bill., 1863; Canadian Naturalist, vol. 8, p. 210, fig. SALTERI Bill., 1865; Pal. Foss., vol. 1, p. 203, fig. 187. Point Levis, Quebec. Taconic. — SALTERI? Rominger, 1887; Proc. Acad. Nat. Sci. Phila., p. 16, pi. 1, fig. 6. Mount Stephens, N. W. Terr., Canada. Taconic. SEDGWICKI Bill., 1860; Canadian Naturalist, vol. 5, p. 316, fig. 16. Point Levis, Quebec. Taconic. - SEDGWICKI Bill., 1865; Pal. Foss., vol. 1, p. 407, fig. 387. MESONACIS Wai., 1885; Am. Jour. Sci., 3d series, vol. 29, p. 329. Mesonacis is used as a subgeiius to Olenellus by Walcott in the 10th Report U. S. Geol. Survey, p. 637. (See Olenellus (Mesonacis) vermantana. MICRODISCUS Emmons, 1855; Am. Geology, vol. 1, pt. 2, p. 116. — BELLI-MARGINATUS S. & F., 1888; Bull. Mus. Comp. Zool. Harvard Coll., vol. 16, p. 35, pi. 2, fig. 19. North Attleborough, Mass. Taconic. CATALOGUE OF TRILOBITES. 323 MICRO-DISCUS. — BELLI-MARGINATUS Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 630, pi. 81, fig. 2, 2 a-b. Olenellus zone. — CONNEXUS Wai., 1887; Am. Jour. Sci., 3d series, vol. 34, p. 194, pi. 1, figs. 4, 4 b. Washington Co., N. Y. Taconic. - CON-NEXUS Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 631, pi. 80, fig. 9, 9 a-b. Olenellus zone. DAWSON-I Hartt, 1868; Acadian Geol., p. 654, fig. 228. St. John, N. B. Mr. Hartt originally described this species under the new generic name of Daicsonia, but on Mr. E. Billings' authority the species was referred to Microdiscus in the Acadian Geol. Taconic. DAWSONI Whiteaves, 1878; Am. Jour.* Sci., 3d. series, vol. 16, p. 225. - DAWSONI Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 23, pi. 2, figs. 3, 3 a. - DAWSONI Matt., 1855; Trans. Roy. Soc. Canada, vol. 3, p. 75, pi. 7, figs. 11 a-c. HELENA Wai., 1889; Proc. Nat. Mus., vol. 12, p. 41. - HELENA Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 632, pi. 81, figs. 1, la. Olenellus zone. Agnostus LOBATUS Hall, 1847; Pal. New York, vol. 1, p. 258, pi. 67, figs. 5 a-f. One mile east of Troy, N. Y. Taconic. Agnostus LOBATUS Rogers, 1858; Geol. Survey Pennsylvania, vol. 2, p. 820, tig. 614 (1-4). - LOBATUS Ford, 1873; Am. Jour. Sci., 3d series, vol. 6, p. 135 (foot- note). - LOBATUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 156, pi. 16, figs. 1, 1 a, b. Troy, N. Y. LOBATUS S. & F., 1888; Bull. Mus. Conip. Zool. Harvard Coll., vol. 16, p. 36, pi. 2, fig. 13. - LOBATUS Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 632, pi. 81, figs. 4 a-b. - MEEKI Ford, 1876; Am. Jour. Sci., 3d series, vol. 11, p. 371. Troy, N. y. Taconic. MEEKI Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 155, pi. 16, fig. 4. - MEEKI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 632, pi. 81, fig. 3. Olenellus zone. - PARKERI Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 157, pi. 16, figs. 2, 2 a. Township of Georgia, Vt. Taconic. - PAEKERI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 632, pi. 80, figs. 7, 7 a. Olenellus zone. PULCHELLUS (Hartt MS.) Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 24. RatclifFs Millstream, N. B.; Manuel's Brook, near Con- ception Bay, N. F. Taconic. PUNCTATUS Salt., 1864; Quart. Jour. Geol. Soc. London, vol. 20, p. 237, pi. 13, fig. 11. St. John, N. B. 324 CALIFORNIA ACADEMY OF SCIENCES. MICKODISCUS. OGYGIA. — PUNCTATUS Whiteaves, 1878; Am. Jour. Sci., 3d series, vol. 16, p. 225. — PUNCTATUS var. PRECURSOR Matt., 1885; Trans. Roy. Soc. Canada, vol. 3, p. 75, pi. 7, fig. 13. Paradoxides zone. - PUNCTATUS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 24, pi. 2, figs. 1, 1 a-c. — QUADRICOSTATUS Emmons, 1855; Am. Geol., vol. 1, pt. 2, p. 116, pi. 1, fig. 8. Augusta county, Va. Taconic. — QUADRICOSTATUS Emmons, 1860; Manual Geol., p. 88, fig. 73. — QUADRICOSTATUS Barr., 1861; Bull. Soc. Geol. France, 2d series, vol. 18, p. 280, pi. 5, figs. 13 a, b. — SPECIOSUS Ford, 1873; Am.* Jour. Sci., 3d series, vol. 6, p. 137, figs. 2 a, b. Troy, N. Y. — SPECIOSUS Ford, 1877; Am. Jour. Sci., 3d series, vol. 13, p. 147. — SPECIOSUS Ford, 1879; New York Tribune Extra, Sept. 2, 1879, fig. 2. - SPECIOSUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 154, pi. 16, figs. 3, 3 a-c. — SPECIOSUS Wai., 1890; 10th Eep. U. S. Geol. Survey, p. 632, pi. 81, figs. 5, 5 a-c. Olenellus zone. NIOBE Ang., 1852; Paloeont. Scand., p. 13. — PRODUCTA (H. & W.) Brogg.; Om alderen af Olenellus zonse i N. A., p. 211. Oquirrh Mts., Utah. Taconic. NILEUS Dalm., 1826; Palsead., p. 246 (German trans., p. 49). - AFFINIS Bill., 1865; Pal. Foss., vol. 1, p. 275, figs. 261 a, b. Cow Head and Island of Orleans. Cambrian. - MACROPS Bill., 1865; Pal. Foss., vol. 1, p. 273, fig. 259. Table Head, N. F. Cambrian. - SCRUTATOR Bill., 1865; Pal. Foss., vol. 1, p. 274, fig. 260. Table Head, Portland Creek, N. F. Cambrian. Nuttania Eaton, 1832 (in part); Geol. Text Book, p. 33. (See Trinucleus and Homalonotus.) — concentrica Eaton, 1832; Geol. Text Book, p. 34, pi. 1, fig. 2. — sparsa Eaton, 1832; Geol. Text Book, p. 34. Odontocephalus Con., 1840; 3d Ann. Eep. Pal. Dept. New York Geol. Survey, p. 204. Dalmanites (Odontocephalus) Hall, 1888; Pal. New York, vol. 7, p. xxxiii. Odontocephalus. (See Dalmanites (Odontocephalus) selenurus, D. (Odonto- cephalus) Hfidens, D. (Odontocephalus) cegeria, and D. (Odonto- cephalus) coronatus.) OGYGIA Brong., 1822; Crust. Foss., p. 26. Asaphus BARRANDI Hall, 1851; Rep. Geol. Lake Superior Land Dist. (Foster & Whitney), pt. 2, p. 210, pi. 27, figs. 1 a-d; pi. 28. St. Mary's River, also near Plattsville, Wisconsin, cf. Ogygia corndensis Murch. Trenton. A saphus BARRANDI Hall., 1862; Geol. Wisconsin, vol. 1, p. 41, fig. 4. CATALOGUE OF TRILOBITES. 325 OGYGIA. OLENELLUS. - KLOTZI Kominger, 1887; Proc. Acad. Nat. Sci. Phila., p. 12, pi. 1, fig. 1. Mount Stephens, British Columbia. Tacouic. - KLOTZI Wall., 1888; Am. Jour. Sci., 3d series, vol. 36, p. 166. In the Proc. U. S.Natl. Mus., vol. 11, 1888, p. 446, Mr. Walcott proposes the new generic name of Ogygopsis for Ogygia klotzi. Oyygies latissimus Eaton, 1832; Am. Jour. Sci., vol. 21, p. 136, foot- note. Ogygies latissimus Eaton, 1832; Geol. Text Book, p. 33 (See Homalono- tus delphinocephus). - PARABOLA H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 245, pi. 2, fig. 35. East Canon, Oquirrh Mts., Utah. Taconic. - ? PROBLEMATICA Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Sur- vey, vol. 8, p. 63, pi. 10, figs. 2 a, b, 4. - PRODUCTA H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 234, pi. 2, figs. 31-34; also p. 245, pi. 2, fig. 35. East Caiion, Oquirrh Mts., Utah. Taconic. Niobe PRODUCTA Brogg., 1886; Omalderenaf Olenellus zonae i Nord- amerika, p. 211. - (Bathyuriscus) PRODUCTUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 217, pi. 30, figs. 1, 1 a-i. Syn., Ogygia parabola (H. & W.) Wai., 1886; idem., p. 217. SERRATA Kominger, *1887; Proc. Acad. Nat. Sci. Phila., p. 13, pi. 1, figs. 2, 2 a. Mount Stevens, British Columbia. Taconic. - ? spinosa Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geok Survey, vol. 8, p. 63, pi. 9, fig. 22. (See Olenoides spinosa Wai.) - ? VETUSTUS Hall, 1847; Pal. New York, vol. 1, p. 227, pi. 60, fig. 1. Mohawk Valley, N. Y. Trenton. VETUSTUS Emmons, 1855; American Geology, vol. 1, pt. 2, p. 216, OLEXELLUS Hall, 1861; Des. N. Species of Foss., published in advance, 15th Rep. State Cab., p. 86. Hall, 1862; 15th Eep. State Cab. Nat. Hist. Albany, p. 114. Syn., Holmia Matt., 1890; Trans. Roy. Soc. Canada, vol. 7, p. 160. Schmidtia Wai., 1890; Am. Geol., vol. 5, p. 363. Cephalacanthus Lapworth, 1890; Wai., 10th Rep. U. S. Geol. Survey, p. 641. Elliptocephala ASAPHOIDES Emmons, 1844; Taconic System, p. 21, figs. 1-3. Reynolds Inn, NE. of Bald Mountain, Washington county, N. Y. Taconic. Elliptocephala ASAPHOIDES Emmous, 1846; Agric. New York, vol. 1, p. 65, figs. 1-3. Olenus ASAPHOIDES Hall, 1847; Pal. New York, vol. 1, p. 256, pi. 67, figs. 2 a, c. Olenus ASPAHOIDES Fitch, 1849; Trans. N. Y. State Agric. Soc., vol. 9, p. 865. 326 CALIFOKNIA ACADEMY OF SCIENCES. OLENELLUS. Elliptocephalus ASAPHOIDES Emmons, 1849; Proc. Am. Assoc. Adv. Sci., 1st meeting, p. 18. Elliptocephalus ASAPHOIDES Emmons, 1855; Am. Geology, vol. 1, pt. 2, p. 114, figs. 1-3, pi. 1, fig. 18. Paradoxides ASAPHOIDES Emmons, 1860; Manual Geol., pp. 87, 280. Paradoxides ASAPHOIDES Barr., 1861; Bull. Soc. Geol. France, 2d series, vol. 18, p. 273, pi. 5, figs. 4, 5. — ASAPHOIDES Ford, 1871; Am. Jour. Sci., 3d series, vol. 2, p. 33. — (Elliptocephalus) ASAPHOIDES Ford, 1877; Am. Jour. Sci., 3d series, vol. 13, p. 266, plate, figs. 1-10. Troy, N. Y., also one mile below Schodack Landing, N. Y. — ASAPHOIDES Ford; Am. Jour. Sci., 3d series, vol. 15, p. 129. — ASAPHOIDES Ford, 1881; Am. Jour. Sci., 3d series, vol. 22, p. 250. ASAPHOIDES Wai., 1866; Bull. U. S. Geol. Survey, No. 30, p. 168, pi. 17, figs. 4, 8, 10; pi. 20, figs. 3, 3 a, b; pi. 25, fig. 8. — (Mesonacis) ASAPHOIDES Wai., 1890; 10th Eep. U. S. Geol. Survey, p. 637, pis. 86, 88, 89 and 90. Olenettus zone. - BROGGERI Wai., 1889; Proc. Nat. Mus., vol. 12, p. 41. Manuel Brook, Conception Bay, N. F. Taconic. - (Holmia) BROGGERI Wai., 1890; Eep. U. S. Geol. Survey, p. 638, pis. 91 and 92. Olenelhis zone. - GILBERTI (Meek MS.) White, 1874; Prelim. Eep. Invt. Foss. U. S. Geog. and Geol. Survey West 100th Mer., p. 7. - (Olenus) GILBERTI Gilbert, 1875; U. S. Geog. Survey West 100th Mer., vol. 3, p. 182. - GILBERTI White, 1877; U. S. Geog. Survey West 100th Mer., vol. 4, p. 44, pi. 2, figs. 1, 3 a-e. — GILBERTI Wai., 1884; Pal. Eureka Dist., Mon. U. S. Geol. Survey, vol. 8, p. 29, pi. 9, figs. 16, 16 a; pi. 21, fig. 13. - GILBERTI Wai., 1886; Bull. U. S. Geol'. Survey, No. 30, p. 170, pi. 18, figs. 1, 1 a-c; pi. 19, fig. 2, 2 a-k; pi. 20, figs. 1, 1 a, 1 b, 4. In Nevada at Pioche, Highland Eidge, eight miles north of Bennet's Spring, Groorne District, etc. In Utah in the Oquirrh Eaiige, Big Cottonwood Canon, Wahsatch Mountains, one mile below Ar- genta; also Kicking Horse Lake, B. C. - GILBERTI Wai., 1890; Eep. U. S. Geol. Survey, p. 636, pis. 84, 85 and 86. - HOWELLI (Meek MS.) White, 1874; Prelim. Eep. Invt. Foss. U. S. Geog. and Geol. Survey West 100th Mer., p. 8. - (Olenus) HOWELLI Gilbert, 1875; U.S. Geog. Survey West 100th Mer., vol. 3, p. 183. - howelli White, 1877; U. S. Geog. Survey West 100th Mer., vol. 4, p. 47, pi. 2, figs. 4 a, b. — howelli Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, pp. 29. 30, pi. 9, figs. 15 a-b, 16-16 a; pi. 21, figs. 1-9. CATALOGUE OF TRILOBITES. 327 OLENELLUS. - howelli Wai., 1886; Bull. U. S. Geol. Survey, p. 171. Eeferred to the older name of 0. gilberti'Meek. - IDDINGSI Wai., 1884; Pal. Eureka Dist. Moil. U. S. Geol. Survey, vol. 8, p. 28, pi. 9, fig. 12. - IDDINGSI Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 170, pi. 19, fig. 1. Prospect Peak, Eureka Dist., Nev., south end of the Tim- pahute Range, Eastern Nev. - IDDIXGSI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 636, pi. 84, fig. 2. Paradoxides MACROCEPHALUS Ernmons, 1860; Manual Geology, p. 88, fig. 70. Olenus THOMPSOXI Hall, 1859; 12th Rep. New York State Cab. Nat. Hist., p. 57, fig. Township of Georgia, Vermont. Tacouic. Olemts THOMPSOXI Hall, 1859; Pal. New York, vol. 3, p. 525, fig. Earr audio, THOMPSONI Hall, 1860; 13th Rep. New York State Cab. Nat. Hist., p. 116, fig. Paradoxides THOMPSOXI Emnions, 1860; Manual Geology, p. 280, note A. Paradoxides THOMPSONI Barr., 1861; Bull. Soc. Geol. France, 2d series, vol. 18, p. 276, pi. 5, fig. 6. Paradoxides THOMPSONI Bill., 1861; Geol. Vermont, vol. 2, p. 950. Barrand'ta THOMPSOXI Hall, 1861; Geol. Vermont, vol.2, p. 369, pi. • 13, fig. 1. Paradoxides THOMPSONI Bill., 1861; Pal. Foss., vol. 1, p. 11 (pamphlet published in advance). Bonne Bay, N. F., 1'Anse au Loup, on the north shore of the Straits of Belle Isle, Big Harbor, on the St. Lawrence River, below Quebec. — THOMPSONI Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 114. — THOMPSOXI Bill., 1863; Geol. Canada, p. 953. — THOMPSOXI Bill., 1865; Pal. Foss., vol. 1, p. 11. - THOMPSONI Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 151, pi. 15, figs. 1-4. — THOMPSONI Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 167, pi. 17, figs. 1, 2, 4, 9; pis. 22, 23, fig. — THOMPSONI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 635, pis. 82, 83. - WALCOTTI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 636, pi. 88, fig. 2. The author therein refers Paradoxides walcotti Shaler & Foerste to the genus Olenellus. North Attleborough, Mass. Olenus VERMONTAXA Hall, 1859; 12th Rep. New York State Cab. Nat. Hist., p. 60, fig. Township of Georgia, Vermont. Taconic. Olenus VERMOXTANA Hall, 1859; Pal. New York, vol. 3, p. 527, fig. 328 CALIFORNIA ACADEMY OF SCIENCES. OLENELLUS. OLENOIDES. Paradoxides VERMOXTI Emmous, 1860; Manual Geology, p. 280 (note A). Paradoxides VERMOXTAXA Barr., 1861; Bull. Soc. Geol. France, 2d series, vol. 18, p. 277, pi. 5, fig. 8. Paradoxes VERMOXTAXA Bill., 1861; Geology Vermont, vol. 2, p. 950. Barrandia VERMOXTANA Hall, 1861; 13th Kep. New York State Cab. Nat. Hist., p. 117, fig. Barrandia VERMOXTANA Hall, 1861; Geol. Vermont, vol. 1, p. 370, pi. 13, figs. 2, 4, 5. Paradoxides VERMOXTANA Bill., 1863; Geol. Canada, p. 953. - VERMONTAXA Hall, 1862; 15th Rep. New York State Cab. Nat. Hist., p. 114. - VERMONTAXA Bill., 1865; Pal. Foss., vol. 1, p. 10. - VERMOXTAXA Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 152, pi. 15, figs. 2-4. — (Mesonacis) VERMONTAXA Wai., 1885; Am. Jour. Sci., 3d series, vol. 29, p. 329, figs. 1, 2. — (Mesonacis) VERMONTAXA VVaL, 1885; Nature, vol. 32, p. 68. — (Mesonacis) VERMOXTANA Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 158, pi. 24, figs. 1 a, b. - (Mesonacis) VERMOXTANA Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 637, pi. 87, fig. 1, 1 a-b. OLEXOIDES Meek, 1877; U. S. Geol. Expl. 40th Par. Pal., vol. 4, p. 25. Dorypyge Dames, 1884; China (Richthofeu), vol. 4, p. 23. Corynexochus Aug., 1854; Palreont. Scand., p. 59, pi. 33, fig. 11 (not pi. 33, figs. 9, 10). Bathyurus ARMATUS Bill., 1860; Canadian Naturalist, vol. 5, p. 319, fig. 23. Point Levis, Quebec. Taconic. Bathyurus ARMATUS Bill., 1865; Pal. Foss., vol. 1, p. 411, fig. 392. Bathyurus ARMATUS Wai.,. 1879; 32d Rep. New York State Mus. Nat. Hist., p. 131. Dorypyye? ARMATUS Vogd.; Bull. U. S. Geol. Survey No. 63, p. 97. Dicellocephalus cristatus Bill., 1860; Canadian Naturalist, vol. 5, p. 312, fig. 10. Point Levis, Quebec. Dicellocephalus cristatus Bill., 1865; Pal. Foss., vol. 1, p. 405, fig. 384. This might be referred to the pygidium of D. armatus. — CURTICEI Wai., 1888; Proc. U. S. Nat. Mus., vol. U, p. 443, fig. — CURTICEI Wai., 1889; Dictionary of Fossils (Lesley), vol. 1, p. 492, fig. - CURTICEI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 752, pi. 94, fig. 1. Coosa Valle3T, Georgia. Olenellus zone. — (Dorypyge) DESIDERATA Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 644, fig. 67. Highgate Springs, Vermont. Taconic. - ELLSJ Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 642, fig. 66. Four miles below Quebec. Taconic. CATALOGUE, OF TRILOBITES. 329 OLENOIDES. - FORDI Wai., 1887; Am. Jour. Sci., 3d series, vol. 34, p. 195, pi. 1, figs. 5, 5 b. Tacouic. - FORDI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 641, pi. 94, figs. 3, 3 a, b. Washington county, N. Y. Olenellus zone. flagricaudus. (See Zacanthoides flagricaudus.) Dicellocephalus? GOTHICUS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 242, pi. 1, fig. 36. Taconic. Dorypyge GOTHICUS Dames, 1884; China (Eichthofeu), vol. 4, p. 23. • Dicellocephalus? GOTHICUS Wai., 1884; Pal. Eureka Dist. Mon. U.S. Geol. Survey, vol. 8, p. 45, pi. 9, fig. 24. - GOTHICUS Wai., 1886; Bull. U. S. Geol. Survey, vol. 30, p. 187, pi. 29, figs. 1, 1 a-c. levis Wai. (See Zacanthoides levis.) m - ? MARCOUI Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 186, pi. 26, figs. 5, 5 a, b. Georgia, Vermont. Taconic. Dicellocephalus ? MARCOUI Whitf., 1884; Bull. Am. Mus. Nat. Hist. New York, vol. 1, p. 150. pi. 14, fig. 7. - MARCOUI Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 642, pi. 94, figs. 2, 2 a, b. Paradoxides? XEVADENSIS Meek, 1870; Proc. Acad. Nat. Sci. Phila., vol. 22, p. 62. House Range, Antelope Springs, Utah. Taconic. Paradoxides? XEVADENSIS Meek, 1877; U. S. Geol. Expl. 40th Par. Pal., vol. 4, p. 23, pi. 1, fig. 5. — XEVADENSIS Meek, 1877; U. S. Geol. Expl. 40th Par. Pal., vol. 4, p. 25. - NEVADENSIS Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 181, pi. 25, fig. 7; also in Proc. U. S. Nat. Mus., vol. 11, 1888, p. 443. - NEVADEXSIS Wai., 1888; Am. Jour. Sci., 3d series, vol. 36, p. 165. Syn., Ogygia serrata (Rominger) Wai., 1888; Am. Jour. Sci., 3d series, vol. 36, p. 165. Dicellocephalus QUADRICEPS H. & W., 1877; U. S. Geol. Expl. 40th Par., vol. 4, p. 240, pi. 1, figs. 37-40. Ute Peak, Wahsatch Range, Utah. Taconic. Dicellocephalus QUADRICEPS Wai., 1884; Pal. Eureka Dist. Mon. U. S. Geol. Survey, vol. 8, p. 45, pi. 9, fig. 24. Dorypyge QUADRICEPS Dames, 1884; China (Richthofen), vol.4, p. 23. Referred to — QUADRICEPS Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 187, pi. 29, figs. 1, 1 a-c. - QUADRICEPS Wai., 1890; 10th Rep. U. S. Geol. Survey, p. 646, pi. 94, figs. 4, 4 a-d. spinosus. (See Zacanthoides spinosus.) - STISSIXGEXSIS Dwight, 1889; Am. Jour. Sci., vol. 38, p. 147, pi. 6, figs. 9-15. Mount Stissing, New York. Taconic. — typicalis. (See Zacanthoides lypicalis.) 330 CALIFORNIA ACADEMY OF SCIENCES. OLENOIDES. PARABOLINA. Dicellocephalus WAHSATCHENSIS H. & W., 1877; U. S. Geol. Expl. 40th Par. Pal., vol. 4, p. 241, pi. 1, fig. 35. -WAHSATCHENSIS Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 189, pi. 29, figs. 2, 2 a. Box Elder Canon, Wahsatch Mts., etc., Utah. Taconic. Syn., Dicellocephallus? gothicus (H. & W.) Wai., 1886; Bull. U. S. Geol. Survey No. 30, p. 189. — . WAHSATCHENSIS Wai., 1888; Am. Jour. Sci., 3d series, vol. 36, p. 165. OLENUS Dalm., 1826; Palread., p. 220. asaphoides. (See Olenellus asaphoides.) • holopyga. (See Bathynotus holopyga.) logani. (See PtycTioparia logani.) thompsoni. (See Olenellus thompsoni.) — UNDULOSTRIATTIS Hall, 1847; Pal. New York, vol. 1, p. 258, pi. 67, figs. 3 a, b. Snake Hill, Saratoga, N. Y. Hudson. — UTAHENSIS H. W., 1873; Rep. 43d Meeting Brit. Assoc. Adv. Sci. - UTAHENSIS H. W., 1873; Geol. Mag., vol. 10, p. 523. Utah. The author gives the following note: " It shows evidence of a median axis ap- parently corresponding with the so-called straight alimentary canal noticed by Barrande. The matrix is composed of a hydrated silicate of magnesia." — vermontana. (See Olenellus vermontana Hall.) Crepicephalus (Loganella) QUADRANS H. & "W., 1877; U. S. Geol. Expl. 40th Par., Palaeont., vol. 4, p. 238, pi. 2, figs. 11-13. Ptychoparia QUADRANS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 199, pi. 29, figs. 4, 4 a, b. Above Call's Fort, north of Box Elder Canon and one mile below Argenta, etc., Utah. Taconic. QUADRANS Brogg., 1886; Om Alderen af Oleiielluszonea i Nordamerika, p. 213. ORYCTOCEPHALUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 210. - PRIMUS Wai., 1886; Bull. U. S. Geol. Survey, No. 30, p. 210, pi. 29, figs. 3, 3 a. East of Pioche, Nev. Taconic. - PRIMUS Wai., 10th Eep. U. S. Geol. Survey, p. 653, pi. 95, figs. 4, 4 a. Olenellus zone. Dicellocephalus SESOSTRIS Bill. This species appear- to be near the genus Oryctocephalus, according to Matthews, Diffusion of the Cambrian fauna, p. 11, note. PANDERIA Volb.; Mem. Acad. Sci. St. Petersburg, vol. 6, p. 31. lllcenus CONRADI Bill., 1859; Canadian Naturalist, vol. 4, p. 372, figs. 7-9. Falls of La Petite Chaudiere, Township of Hull, Canada. For other references, see Illcenus conradi Bill. Trenton. PARABOLINA Salt., 1849; Mem. Geol. Survey, decade 2. — SPINULOSA (Wahl.) Matt., 1891; Trans. Roy. Soc. Canada, vol. 9, p. 51, pi. 13, figs. 5 a-d. St. John, N. B. CATALOGUE OF TRILOBITES. 331 PARABOLIN A . PAEADOXIDES. HERBS (Brogg.) Matt., 1891; Trans. Roy. Soc. Canada, vol. 9, p. 51, At Germaine street, St. John, N.B. Also var. lata, pi. 13, tigs. 6 a-f, var. grand™, p. 52, pi. 13, fig. 7. At Navy Island, St. John Harbor, N. B. Tacouic. Dicellocephalus'i corax Bill., shows some resemblance to Parabolina splnti- losa Wahl. See Matthew's note, p. 11. Diffusion of the Cam- brian fauna. PARADOXIDES Brong., 1822; Crust. Foss., p. 30, pi. 4, fig. 1. Syn., Phitonia Salt., 1869; Quart. Jour. Geol. Soc. London, vol. 25, p. 52. ABEXACUS Matt., 1885; Trans. Roy. Soc. Canada, vol. 3, p. 78, pi. 7, figs. 17, 17 a-d. Paradoxides zone. St. John, N. B. ACADICUS Matt., 1882; Trans. Roy. Soc. Canada, vol. 1, p. 103, pi. 9, figs. 16-18. Portland, N. B., Hanford Brook, St. Martin's. ACADICUS Matt., 1884; Trans. Roy. Soc. Canada, vol.2, p. 99, pi. 1, fig. 1. — ACADICUS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 25, pi. 6, figs. 3, 3 a. ACADICUS var. SURICUS Matt., 1885; Trans. Roy. Soc. Canada, vol. 3, p. 77, pi. 7, fig, 16. Paradoxides zone. arcualus Harlan. (See Triarthrus beckii.) — BARBERI Winch., 1884; 13th Rep. Geol. Nat. His. Survey Minn., p. 67, pi. 1, fig. 7. Pipestone county, Minnesota. beckii. (See Triarthrus beckii.) — BEXXETII Salt., 1859; Quart. Jour. Geol. Soc. London, vol. 15, p. 553, fig. St. Mary's and Placentia Bay, N. F. Paradoxides zone. - BEXXETII S. & W., 1865; Chart of Foss. Crust., fig. 25. boltoni. (See Lichas bolloni.) — DECORUS Bill., 1865; Pal. Foss., vol. 2, p. 75. Chapel Arm, Trinity Bay, N. F. cf. P. tenellus. Paradoxides zone. ealoni. (See Triarthrus beckii.) - ETEMINICUS Matt., 1882; Trans. Roy. Soc. Canada, vol. 1, p. 92, pi. 9, figs. 7-12. Portland, also at Radcliffs Stream. St. John. Var. suricoides (figs. 4-6), var. breviatus, var. malicitus (fig. 13), var. pontificalia (figs. 15, 15 a), var. quacoensis (figs. 14, 14 a). - ETEMINICUS Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 27, pi. 3, figs. 1, 1 a-g. — HARLANI Green, 1834; Am. Jour. Sci., 1st series, vol. 35, p. 336. cf. Paradoxides spinostis Boeck. — HARLAXI Green, 1835; Suppl. Mon. Tril. N. A., p. 14, cast 39. - HARLANI Rogers, 1856; Proc. Boston Soc. Nat. Hist., vol. 6, pp. 27, 40. — HARLAXI Stodder, 1856; Proc. Boston Soc. Nat. Hist., vol. 6, p. 3