-Ha:; :J;|u: '^%;-j:$*^ iJbrVY FAUNA HAWAIIENSIS CAMBRIDGE UNIVERSITY PRESS ILotttJon: FETTER LANE, E.G. C. F. CLAY, Manager (S-ainhuvsi} : loo. PRINCES STREET llantfon: WILLIAM WESLEY AND SON, 28, ESSEX STREET, STRAND iSerlin: A. ASHER AND CO. Hdpjig: F. A. BROCK HAUS ^tw }3ork : G. P. PUTNAM'S SONS iSombaj) nnt) (Talntitn: MACMILLAN AND CO., Ltd. A// rtp/i/s reserth'd FAUNA HAWAIIENSIS VOL. II. PART V. ARACHNIDA Eugene Simon. CRUSTACEA I SO POD A Adrien Dollfus. CRUSTACEA AMPHIPODA T. R. R. Stebbing. Price Twenty-eight Shillings. To Subscribers Fourteen Shillings. The Fauna Hawaiiensis is being published in parts at irregular inter- vals, and will it is hoped be completed in about two years. Contributions have been made or W. H. ASHMEAD The Lord Avebury, F.R.S. F. E. Beddard, F.R.S M. A. DOLLFUS Prof. AUGUSTE FOREL p. H. Grimshaw, F.E.S. G. W. Kirkaldy, F.E.S. E. Meyrick, F.Z.S. R. C. L. Perkins, B.A R. I. POCOCK D. Sharp, F.R.S A. E. Shipley, M.A M. EuG. Simon The Rev. T. R. R. Stebbing, F.R.S E. R. Sykes, F.Z.S The Lord Walsingham, F.R.S. It is also intended to give a list in the Islands. promised by the following, viz. ... Hymenoptera Parasitica. Thysanura and Collembola. ... Earthworms. ... Isopod Crustacea. ... Formicidae. ... Dipt era. . . . Hemiptera. ... Macrolepidoptera. {Hymenoptera Aculeafa, Orthoptera, '" \ Neuroptera, and part of Coleoptera. ... Myriapoda. ... Part of Coleoptera. ... Parasitic Worms. ... Arachnida. . ... Amphipod Crustacea. ... Mollusca. ... Microlepidoptera. "" of the Vertebrates, with their distribution, N.B. The parts of Volumes I. and II. are being published concurrently in order to expedite the completion of the work. The price of each part will vary according to its extent and the number of Plates^ Subscribers to the whole work will be charged half-price for each part. The parts wi be sent, as published, to each subscriber who has paid for the preceding part. Those who wish to be subscribers, should send name and address either directly to C. J. Clay & Sons, Cambridge Warehouse, Ave Maria Lane, London, E.C., or ^hroug^ any bookseller. Payments for each part should also be made to Messrs C. J. Clay & ARACHNIDA By EUGENE SIMON CRUSTACEA ISOPODA Bv ADRIEN DOLLEUS CRUSTACEA AMPHIPODA By the Rev. T. R. R. STEBBING, E.R.S. FAUNA HAWAIIENSIS OR THE ZOOLOGY OF THE SANDWICH (HAWAHAN) ISLES Being Results of the Explorations instituted by the Joint Committee appointed by THE ROYAL SOCIETY OF LONDON FOR PROMOTING NATURAL KNOWLEDGE AND THE BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE And carried on with the assistance of those Bodies and of the Trustees of THE BERNICE PAUAHI BISHOP MUSEUM AT HONOLULU. EDITED BY DAVID SHARP, M.B., M.A., F.R.S. SECRETARY OF THE COMMITTEE. VOLUME II. PART V. ARACHNIDA by EUGENE SIMON : CRUSTACEA ISOPODA by ADRIEN DOLLFUS : CRUSTACEA AMPHIPODA by the Rev. T. R. R. STEBBING. Pages 443 — 5 30; Plates XV — XXI^ uncoloured. CAMBRIDGE: AT THE UNIVERSITY PRESS. 1900 {All Rights reserved.^ October 17, 1900. SottDon: C J. CLAY and SONS, CAMBRIDGE UNIVERSITY PRESS WAREHOUSE, AVE MARIA LANE, ©laggoto: 50* WELLINGTON STREET, Hetpjig: F. A. BROCKHAUS. I^eto Hotk: THE MACMILLAN COMPANY. ©ombsg: E. SEYMOUR HALE. 443 ARACHNIDA. Par Eug&ne Simon. § 1. Greneral considerations on the Arachnida. Les patientes recherches de Mr R. C. L. Perkins nous ont fait connattre loi especes d'Arachnides superieurs^ des iles Sandwich, dont "]"] speciales, proportion qui ne s'observe nulle part ailleurs. La faune de cet archipel peut done etre consideree comme fortement sp6cialisee et riche relativement au peu d*6tendue de son territoire ; elle se rattache d'une maniere gen^rale aux faunes Malaise et Australienne, avec Tabsence de certaines formes tropicales tres repandues telles que Gasteracantha, Nephila etc., et par contre Tad- jonction de certaines formes pal6arctiques et n6arctiques telles que Dysdera, Labulla etc. Les divers groupes d'Arachnides y sont tres inegalement distribues : sur une quarantaine de families que Ton admet generalement aujourd'hui dans lordre des Araneae, 28 font completement defaut, et trois (Sicariides, Clubionides et Agelenides) n'y sont representees chacune que par une seule espece ubiquiste probablement introduite. II en est de meme de lordre des Scorpiones dont la seule espece, Iso- metrus maculatus de Geer, n est certainement pas autochtone ; les ordres des Pedipalpi et des Solifugae font defaut. Les families qui dominent sont celle des Argiopides qui y compte 27 especes dont 20 speciales, appartenant en grande partie au groupe des Tetragnatha ; celle des Thomisides qui y compte 25 especes, toutes speciales; celle des Theridiides avec 17 especes dont 13 speciales; celle des Attides avec 12 especes dont 8 speciales. II est a remarquer que les families qui manquent sont, sauf de rares exceptions {Ariadna), celles dont les especes vivent cach6es dans des terriers comme les Avicu- larides, sous les pierres et les ^corces comme les Drassides et Clubionides, ou celles qui filent des toiles pres de terre et dans les endroits obscurs comme les Agelenides, tandis que les families dominantes sont celles dont les especes filent leurs toiles a decouvert sur les plantes comme les Argiopides et les Theridiides, ou qui chassent leur proie au soleil comme les Thomisides et les Attides, ^ Les Opiliones et les Acari ne sont pas compris dans ce memoire. Only one or two species of Acari have been obtained in the islands. Editor. F. H. II. 58 444 FAUNA HAWAIIENSIS Dans chacune des families dominantes le nombre des genres est relativement faible, mats certains genres, Theridion, Tetragnatha, Sandalodes, etc. sont represent^s par de longues series d especes voisines les unes des autres, les unes egalement repandues dans toutes les lies, les autres confinees dans une seule ; sous ce rapport Tile la plus occidentale de Kauai nous a paru surtout int^ressante. Les genres nouveaux sont au nombre de six : le genre Doryonychus, voisin des Tetragnatha, s en distingue par la structure toute speciale de ses tarses anterieurs ; le genre Syroloma appartient a la famille des Lycosides ; les genres Mecaphesa, Proernus {Pterelas), Pagiopalus et Adrastidia a celle des Thomisides ; les trois derniers, com- prenant ensemble huit especes, doivent former dans la sous-famille des Philodrominae un groupe nouveau, particulier a la faune des Sandwich. § 2. Systematic account of the Arachnida. Ordo ARANEAE. Fam. SICARIIDAE. ScYTODES Latreille. (i) Scytodes marmorata L. Koch. Scytodes marmorata L. Koch, Ar. Austr. 1872, p. 292, tab. xxiv. fig. 4. Hab. Oahu (1500 ft.), Perkins, x. 1896; Schauinsland. — Molokai and Hawaii; Schauinsland. Espece tres repandue dans la Malaisie Orientale, Tlndo-Chine, I'Australie, et la Polynesie ; d6ja indiquee des lies Sandwich (Karsch, Thorell) ; trouvee par le Dr Schauinsland a Hawaii, Molokai et Oahu (E. Simon). Fam. DYS DERI DAE. Dysdera Latreille. (i) Dysdera crocata C. Koch. Dysdera crocata C Koch, Arachn. t. v. 1839, p. 81, fig. 392 — 394. Dysdera rubicunda Blackwall, Spid. of Gr. Brit. p. 371. Dysdera interrita Hentz, in: Boston Journ. Nat. Hist. iv. p. 223. Hab. Hawaii: Kona. — Oahu; Schauinsland. Trouve anterieurement par le Dr Schauinsland a Oahu. Espece commune ^ TEurope, a TAm^rique du Nord et k TAmerique du Sud extratropicale, sans doute introduite aux Sandwich. ARACHNIDA 445 Ariadna Audouin. (i) Ariadna per kinsi, sp. nov. t. Long, 9*5 mm. Cephalothorax pallide fusco-rufescens, tenuiter nigro-margi- natus, longe ovatus, subtilissime coriaceus et punctis impressis parvis conspersus, acute marginatus, et fovea thoracica superficial! lata impressus. Oculi subaequales, medii ovati, inter se contigui sed antice attenuati et leviter divaricati. Oculi laterales utrinque ovati, contigui, et prominuli. Oculi medii superne visi cum lateralibus lineam recurvam designantes. Clypeus verticalis, planus, subtiliter transversim striatus, oculis anticis latior. Abdomen oblongum, teretiusculum, albido-testaceum, antice vitta longi- tudinali postice sensim ampliata et truncata, dein maculis transversis seriatis 6 vel 7, medianis triquetris, posticis angustis et linearibus atro-violaceis, supra notatum. Chelae fusco-olivaceae, longae et attenuatae, crebre transversim striatae. Partes oris sternumque pallide fusco-rufescentia, laevia et nitida. Pedes fulvi, antici, femoribus exceptis, paulo obscuriores. Pedes i' paris femore curvato supra ad apicem tria- culeato aculeoque interiore subapicali armato, patella mutica, tibia longa, tereti, subtus ad marginem exteriorem aculeis seriatis decem iniquis, apicali reliquis validiore et leviter uncato, ad marginem interiorem aculeis binis subapicalibus, extus aculeis lateralibus quatuor, intus aculeis lateralibus trinis armata, metatarso mutico sed longe et tenuiter piloso, cylindraceo et valde sinuoso-arcuato. Pedes-maxillares fulvi, tibia patella saltern duplo longiore crassiore et ovata, tarso parvo obtusissimo et longe piloso, bulbo subgloboso sed depressiusculo, spina longa ad basin recta ad apicem flexuoso-arcuata. Plate XV. fig, I. ?. Long. 10 — 12 mm. A mari differt cephalothorace antice obscuriore fere nigro, chelis robustioribus nigris sublaevibus, abdomine longiore teretiusculo, maculis dorsa- libus majoribus ornato, pedibus anticis robustioribus et brevioribus, apice valde infus- catis, femore i' paris aculeis dorsalibus parvis trinis aculeisque interioribus validis et longissimis trinis armato, tibia aculeis inferioribus biseriatis 10, 11 vel 12 validis, longissimis parvisque intermixtis, armata, sed aculeis lateralibus carente, metatarso leviter curvato, baud flexuoso, subtus aculeis validis, singulariter elevatis, parvis longisque mixtis, lo — 10, armato. Pedes-maxillares breves et robust i, fulvo-rufuli, tibia tarsoque nigris. Hab. Kauai. — Lanai (2000 ft.). — Oahu ; Mts. Waianae, Lolle. De toutes les especes de ce genre qui me sont connues A. Perkinsi E. Sim. se rapproche surtout ^A. Bdsenbergi Keyserl., de la R^publique Argentine, qui a le meme dessin abdominal ; elle sen distingue tout de suite par les epines de ses tibias anterieurs beaucoup plus nombreuses et alternativement plus longues et plus petites. 58—2 446 FAUNA HAWAIIENSIS Fam. PHOLCIDAE. Smeringopus E. Simon, (i) Smeringopus elongatus Vinson. Pholcus elongatus Vinson, Aran. Reun. etc. 1864, p. 135. Pholcus phalangioides Dolesch., in: Act. Soc. Ind.-Neerl. v. 1859, p. 47. Pholcus tipuloides L. Koch, Ar. Austr. 1872, p. 281, tab. xxiii. fig. 5. Pholcus distinctus Cambr., in: Linn. Soc. Journ. x. 1869, p. 380, tab. xi, figs. 28—30. Pholcus Margarita Workman, in: Ann. Mag. Nat Hist. 1878, p. 451, tab. XVIII. figs. I, 2. Hab. Oahu, Kaala Mts. (3000 ft.), March, 1893 J Perkins. Espece repandue dans presque toutes les regions tropicales du monde. Sans doute introduite aux Sandwich. Artema Walckenaer. (i) Artema sisyphoides Doleschall. Indique des Sandwich par plusieurs auteurs (Thorell, E. Simon) ; n'y a pas ete retrouve par Mr Perkins. Fam. THERIDIIDAE. Argyrodes E. Simon. (1) Argyrodes argyrodes Walckenaer. Linyphia argyrodes Walck., H. N. Ap. t. 11. 1841, p. 282. Theridion trigonium Hentz in : Bost. Journ. N. H. vi. 1850, p. 280, tab. ix. figs. 24, 25. Argyrodes epeirae E. Simon, Ann. Soc. ent. Fr. 1866, p. 281, tab. i. figs. 4 — 7, Argyrodes argyrodes E. Simon, Ar. Fr. t. v. 1881, p. 16. Hab. Hawaii, Kona (3000 ft). Cette espece est repandue dans la region mediterraneenne, dans presque toute I'Afrique, dans I'Asie tropicale et dans FAmerique du Nord. Dans Tancien monde elle accompagne presque toujours le Cyrtophora citricola Forsk., dont elle est parasite, mais aux lies Sandwich elle vit sur la toile de XArgiope avara Thorell, en meme temps que Tespece suivante. ARACHNIDA 447 (2) Argyrodes hawaiiensis, sp. nov. ^. Long. 3 — 4 mm. Cephalothorax subtilissime coriaceus, fusco-olivaceus, utrinque et postice fere niger, parte cephalica antice sensim elevata vix attenuata et obtu- sissima. Oculi quatuor antici in lineam valde procurvam, medii paulo majores a lateralibus quam inter se multo remotiores. Oculi postici parvi, aequi, in lineam subrectam, medii inter se quam a lateralibus remotiores. Oculi quatuor medii aream multo latiorem quam longiorem et postice quam antice multo latiorem occupantes. Clypeus verticalis, altissimus, hand cornutus, sed incrassatus, a regione oculari depressione profunda et pilosa, valde arcuato-angulosa, discretus. Abdomen postice sensim elevatum, in tuberculum crassum baud attenuatum, apice obtuse truncatum, productum, nigricans, supra vitta latissima, linea media exili secta, et utrinque vitta vel macula magna confusa et dentata luteo-argenteolis ornatum. Chelae longae et partes oris fusco-piceae, laeves. Sternum nigro-nitidum. Pedes olivacei, tarsis cunctis, femoribus metatarsisque quatuor posticis dilutioribus et luteis. Pedes-maxillares lutei, tibia tarsoque nigricantibus, femore sat longo tereti, patella longa versus basin sensim attenuata, tibia patella plus duplo breviore paulo angustiore sed extus obtuse ampliata, tarso breviter ovato, apice oblique truncato. Hab. Hawaii, Kona. Cette espece se rapproche un peu, par la structure de son bandeau, des A, minax Cambr. (de Madagascar) et A. affinis Cambr. (du Parana). Ariamnes Thorelh (i) Ariamnes corniger, sp. nov. $. Long. 8 — 10 mm. Cephalothorax longus, humilis, vix pone medium stria trans- versa, leviter procurva, impressus, in parte antica valde attenuatus subacuminatus, in parte altera fere parallelus, postice vix attenuatus et recte truncatus, fusco-rufescens, leviter reticulatus, vitta media angusta et Integra et utrinque vitta marginali, diluti- oribus et fulvis, notatus, fronte, inter oculos medios anticos, tuberculo fulvo, obtuse conico et antice oblique directo, insigniter munita. Oculi antici in lineam subrectam, medii reliquis oculis multo majores, nigri et convexi, inter se distantes sed a latera- libus vix separati. Oculi postici, superne visi, in lineam subrectam, vix procurvam, mediocres et inter se aequales, medii inter se quam a lateralibus saltem triplo remotiores. Clypeus verticalis, leviter convexus, area oculorum angustior. Abdomen angustum, antice truncatum, postice in tuberculum, corpore toto longius, cylindraceum sed apicem versus attenuatum et subacutum, postice oblique directum et plus minus arcuatum, insigniter productum, utrinque argenteolum, supra vitta lata saepe fusco- 448 FA UNA HA WAIIENSIS marginata, obscuriore, aureo vel rufulo tincta, ornatum, tuberculo utrinque saepe linea nigra abbreviata et punctata et subtus, pone mamillas, macula nigricanti ornato. Chelae, partes oris sternumque fusco-rufula vel olivacea, sternum vitta media dilutiore notatum. Pedes graciles, inter se valde inaequales, pallide lutei, femoribus patellis tibiisque (apice excepto) i' paris fusco-rufulis, femoribus 2' pans antice, saltern ad apicem, rufulo-lineatis, femoribus tibiisque 4* paris apice minute rufulo-cinctis ; tibia i' paris metatarso saltem aequilonga femore vix breviore. Pedes-maxillares fusco-rufuli, femora dilutiora ; femore gracili apice haud incrassato ; tibia tereti ; tarso acuminato, tibia cum patella multo longiore. Plate XV. fig. 2. Hab. Maui, Haleakala. — Lanai, Koele. Cette espece remarquable fait presque le passage du genre Ariamnes au genre Rhomphaea ; elle se rattache au premier par son bandeau etroit et vertical et par sa patte-m&choire a femur et tibia cylindriques ; mais ses pattes anterieures dont le tibia est au moins aussi long que le metatarse ressemblent davantage a celles des Rho77t- phaea, Sa region oculaire est pourvue, m^me chez la femelle (seul sexe connu), d'un tubercule median conique, caractere commun a plusieurs Rhomphaea mais jusqu'ici etranger aux Ariamnes, Theridion Walckenaer. Le genre Theridion est represents aux lies Sandwich par deux especes probable- ment introduites et au reste presque cosmopolites, les Theridion rufipes Lucas et tepi- dariortmi C. Koch, et aussi par une nombreuse serie despeces propres qui appar- tiennent toutes au groupe ayant pour types les Theridion frondeiim Hentz et rttsticum E. Sim. (cf Hist. Nat. Ar. t. i, p. 537). La distribution de ces especes dans les di verses lies de I'archipel est curieuse : Hawaii : Theridion praetextum E. S., grallator E. S., melinnm E. S., rufipes Lucas, tepidariorum C. Koch. Manai : Theridion praetextum concolor E. S., melinum E. S., ca^npestratum E. S., manaiense E. S., haleakalense E. S., Perkinsi E. S., tepidariorum C. K. Oahu : Theridion melinum E. S. Molokai : Theridion posticatum E. S., tepidariorum C. K. Lanai : Theridion posticatum E. S., tepidariorum C. K. Kauai : Theridion Perkinsi E. S., kauaiense E. S., acutitarse E. S. ARACHNIDA 449 Synopsis specierum propriarum. 1. Oculi medii antici lateralibus paulo minores. Pedes longissimi fere Pholci grallator, Oculi medii antici lateralibus plus minus majores vel saltern baud minores. Pedes normales 2. 2. Oculi antici inter se aequidistantes 3. Oculi medii antici a sese quam a lateralibus remotiores 5. 3. Oculi postici in lineam parum procurvam, medii lateralibus paulo majores, spatio interoculari oculo multo latiore. Abdomen subtus impunctatum ( $ ) kauaiense, Oculi postici in lineam valde procurvam, medii a lateralibus quam inter se fere duplo remotiores, spatio oculo non multo latiore a sese distantes. Abdomen subtus, prope mamillas, minute fusco-bipunctatum 4. 4. Bulbus maris dente interiore lata obtusa et subtriquetra. Plagula genitalis feminae convexa, laevis, semicircularis, antice puncto impresso, postice, in declivitate, foveola magna super ficiali transversa, impressa Perkinsi. Bulbus maris dente interiore gracili acutissima et valde uncata. Plaga genitalis feminae ovato-transversa, plana, subtiliter coriacea, antice et praesertim postice transversim striata .praetextiim. 5. Cephalothorax luteus, concolor. Pedes quatuor antici baud annulati. Femora 4' paris apice late nigro-annulata. Area oculorum mediorum subquadrata (?) campestratufn. Cephalothorax vitta media lata nigricanti vel olivacea notatus 6. 6. Cephalothorax vitta media lata ornatus, sed linea marginali carens, Oculi medii postici lateralibus paulo majores. Oculi quatuor medii inter se subaequales. Femora 4* paris baud vel parum distincte annulata 7 . Cephalothorax vitta media lata lineaque marginali exili nigricantibus notatus. Oculi medii postici lateralibus saltern baud majores et medii antici minores ( P^s. 9, 10). . Isopodes terrestres des Indes Neerlandaises (Zoolog. Ergebn, einer Reise in Niederland. Ost- Indien, Band iv. Leiden, 1898, pp. 359—382, pis. xiii — xv). 527 CRUSTACEA AMPHIPODA. By Rev. T. R. R. Stebbing. Fam. TALITRIDAE. Gen. Orchestia Leach. Orchestia platensis Kroyer. Plate XXI. A. 1845. Orchestia platensis Kroyer, Naturhistorisk Tidsskrift, Sen 2, vol. i. pp. 304—310, pi. 2, fig. 2, a— i. Kroyer's specimens were taken on a rocky margin of the river Plate just north-west of Montevideo. The agility with which the animal skips, he says, is so great that it is pretty difficult to catch it. Specimens apparently belonging to this species have been entrusted to me by the authorities of the Copenhagen Museum. The labels show that these examples were taken at the Bermudas, at St Croix (West Indies), and at Beloxi (Mississippi, U.S.A.). Specimens of Orchestia agilis S. I. Smith, from the east coast of the United States, have been given me by my friends. Canon Norman and Mr S. J. Holmes. These also in my opinion should be included in Kroyer's species. Now, after much hesitation, I feel constrained to increase its range by applying the name to the specimens taken by Mr Perkins at an elevation oi 3000 feet and 2000 feet respectively in the Sandwich Islands. At the greater height there was but one example, labelled " Kona, Hawaii." The others were labelled '' Oahu '' and '' Honolulu," and " Lanai." Others were labelled, without specifying elevation, *'Waianae Mts., Oahu, shrimps in dead wood." The eastern specimens differ to a slight degree from the western in having the second antennae more slender, with flagella not always limited to thirteen or fourteen joints, one of the female specimens having twenty-three, and one of the males twenty- four joints ; also the first gnathopods of the male have the distal part of the sixth joint 528 FAUNA HAWAIIENSIS less conspicuously widened, nor can I guarantee that the armature of spines on the uropods is precisely the same in both forms. In the second gnathopods of the male the large oval sixth joint has a smoothly convex palmar margin, bordered with submarginal spinules. Round this the long finger curves, closely fitting it, but laying its apical part within a long groove which succeeds the palmar margin. Kroyer, it should be observed, neither figures nor describes this apical part of the finger, ^ich is membranaceous in appearance, slender, but not very acute at the point. According to Kroyer the telson is at the apex flatly rounded off or nearly truncate. In the specimens which I have examined in this respect it is minutely emarginate. The peraeopods are without specially dilated joints. The second joint of the fourth peraeopods is much more narrowly oval than that of the fifth pair; the second joint of the latter has its hind nfargin rather strongly serrate. The first pair of uropods have the outer ramus free from spines except at the apex, but this character is common to various other species in the family. Length reaching 12 mm. Orckestia picke^nngii Dana. Plate XXL B. 1853. Orckestia pickeringii Dana, U. S. Exploring Exp., Crustacea, pt. 2, p. 882, pi. 59, f. 9 a— f. Dana, at p. 1595 of his great work, states that * the locality of Orckestia pickeringii, was Kauai or Oahu, Sandwich Islands.' He does not give any further detail as to the habitat. Stimpson records it from California, without comment. The specimens obtained by Mr Perkins are labelled " Honolulu. Oahu. 2000 ft." They were taken on the same date and at the same height as specimens of Orckestia platensis, and the question suggested itself whether by chance the two species might be identical. There is considerable general resemblance, but that perhaps is only as much as to say that both are species of Orckestia- The idea of uniting them is, I think, untenable. The second gnathopod of the male has a very large sixth joint, the sloping palmar margin of which is in these specimens diversified by two spinulose projections, in correspondence with which the strongly curved finger has a very sinuous inner margin, its apex entering a small pocket or groove of the somewhat flattened hind margin of the sixth joint Dana describes the palm as having two very low prominences near base of finger, whereas these are very marked, and one of them is remote from the base of the finger. But an Oahu specimen from the Copenhagen Museum and an Australian specimen from the Australian Museum, show modifications approximating to Dana's AMPHIPODA 529 form. These have the inner margin of the finger smoothly concave. In Dana's figure the finger has a slight convexity near the base, and also has a produced apex, corres- ponding with a long groove in the sixth joint, which in a manner recall the same features in Orchestia platensis, Dana gives the flagellum of the first antennae three-jointed. This variable feature has sometimes five joints. The ultimate and penultimate joints of the peduncle of the second antennae are much stouter than in any of the specimens referred to Orchestia platensis, and yet the flagella are not more than fourteen-jointed. It seems unlikely that the larger and more strongly armed male should have a shorter flagellum than a less highly developed male of the same species. The specimens referred to Orchestia pickeringii have the fourth and fifth joints of the fifth peraeopods, though not dilated, thickened in a way not exhibited by the other set. This, however, might be a character of advanced maturity. ^ Length reaching 14 mm. One female specimen, 12*5 mm. long, which I am inclined to refer to this species, differs from those of the same sex referred to Orchestia platensis in rather superior bulk, and also in having a distal boss on the fourth joint of the second gnathopods, agreeing in that respect with Dana's figure of the limb in question in Parorchestia hawaiensis, $. From that species it is completely distinguished by the short, few-jointed, upper antennae. Gen. Parorchestia, Stebbing. 1899. Parorchestia Stebbing, Trans. Linn. Soc. London, vol. vii, pt. 8, pp. 397, 402. This genus was instituted to receive three of Danas species of Orchestia, namely, tenuii, hawaiensis, and sylvicola. Parorchestia hawaiensis Dana. Plate XXI. C. 1853. Orchestia hawaiensis Dana, U.S. Expl. Exp., Crustacea, pt. 2, p. 880, pi. 59, f. 8 a— g. 1899. Parorchestia hawaiensis Stebbing> Trans. Linn. Soc. London, vol. vii, pt. 8, p. 402. Dana's description and figures of this species, obtained at *Oahu or Kauai, Hawaiian Islands,' refer only to the female. Specimens of both sexes obtained by Mr Perkins were labelled as coming from '* Koholuamano, Kauai," and from '^Waianae Mts., Oahu." It has also been taken by Dr Arthur Willey at Lifu. 530 FAUNA HAWAIIENSIS From the species of Orchestia above discussed the present species is separated by many particulars in addition to the minute distinction on which the genus Parorchestia is founded. '■/¥ # ,i' frVM^S I / / '\ \ \ ;ll:: I / I I. ?s DESCRIPTION OF PLATE XVIL (VOL. II.) ARANEAE. Fig. I. Mistimena nigrofrenata E, Sim. $ . Fig. 2. Synaema naevigerum E. Sim. ? ; 2a, pes-maxillaris maris. Fig. 3. S. dimidiatipes E. Sim. ? . Fig. 4. Mecaphesa semispznosa E. Sim. J ; 4^, plagula genitalis. Fig. 5. Proernus velox E. Sim. $\ 5^, processus tibialis pedis-maxillaris maris. Fig. 6. F. schauinslandi E. Sim. $\ 6^, oculi proni ; 6^, chele supina; (yc^ pes-maxillaris maris; 6^, ejusdem processus tibialis a latere exhibitus. Fig. 7. Fagiopalus atomarius E. Sim. (^; 7^, pes-maxillaris maris; 7/^, ejusdem processus tibialis. Fig. 8. P. personatus E. Sim. $ . Fig. 9. Adrastidia longula E. Sim. $ . Fig. 10, A, stigmatica E. Sim. $ . Fig. u. Mistimena anguliventris E. Sim., maris pes-maxillaris; iia, feminae plagula genitalis. Fig. 12. J/, w/a/^ E. Sim., maris pes-maxillaris; 12a, feminae plagula genitalis. Fig. 13. Z>/ii^a zWw/^/^a Keyserl., processus tibialis pedis-maxillaris maris ; 13^?, id. varietas. Fig. 14. Z>. vitellina E. Sim., processus tibialis pedis-maxillaris maris. Fig. 15. Fagiopalus semipunctatus E. Sim., pes-maxillaris maris; 15^2, ejusdem processus tibialis. 1 v^ , , ■■■■■■. « ! 1 il ...... i^.:' ■"^P^'--'^' I'lg. I. Fig. 2. Fig. 3- Fig. 4- Fig. 5- Fig. 6. Fig. 7- Fig. 8. Fig. 9- Fig. lO. Fig. II. Fig. 12. Fig. 13- Fig. 14. Fig. 15- DESCRIPTION OF PLATE XVIII. (VOL. II.) ARANEAE. Syroloma major E. Sim. ? ; \a, ungues tarsorum ; \b, plagula genitalis. S. minor E. Sim. 2/5 premier pleopode (c?); 2g^ uropodes et pleotelson (vus en dessous) ( c?); 2/2, cephalon et premier segment pereial ( ? ). Figs. 3a — 3/ A, perkinsi, sp. nov. c?; 3^, cephalon et premier segment pereial ; 3^, cephalon (vu en dessous) ; 3:-p m filf " V /^^^' C7\ '¥ ZOOLOGICAL RESULTS based on material from New Britain, New Guinea, Loyalty Islands and elsewhere, collected during the years 1895, 1896, and 1897, by Arthur Willey, D.Sc. Lond., Hon. M.A. Cantab., Late Balfour Student of the University of Cambridge. Demy 4to. Parts I, II, and IIL Price 12s. bd, each. Parts IV and V, Price 2\s. each. Part VI (completing the work). Price 12s, 6d, PART L 1898. 1. The anatomy and development of Peripatus novae-britanniae. By ARTHUR WiLLEY, M.A., D.Sc. With Plates I. — IV. and 7 figures in the text. 2. Metaprotella sandalensis, n. sp. [Caprellidae]. By Dr Paul Mayer. With 6 figures in the text. 3. On a httle-known Sea-snake from the South Pacific. By G. A. BOULENGER, F.R.S. With Plate V. 4. Report on the Centipedes and Millipedes. By R. I. POCOCK. With Plate VI. 5. Account of the Phasmidae with notes on the eggs. By D. SHARP, M.A., F.R.S. With Plates VII.— IX. 6. Scorpions, Pedipalpi and Spiders. By R. I. PocoCK. With Plates X. and XI. PART 11. 1899. 7. Report on the specimens of the genus Millepora, By SYDNEY J. HiCKSON, M.A., D.Sc, F.R.S. With Plates XIL-^XVI. 8. Report on the Echinoderms (other than Holothurians). By F. JEFFREY BELL, M.A. With figures on Plate XVI L and one figure in the text. 9. Flolothurians. By F. R Bedford, B.A. With figures on Plate XVII. ID. Report on the Sipunculoidea. By Arthur E. Shipley, M.A. With Plate XVIII. 11. On the Solitary Corals. By J. Stanley Gardiner, M.A. With figures on Plates XIX. and XX. 12. On the postembryonic development of Cycloseris. By J. STANLEY GARDINER, M.A. With figures on Plates XIX. and XX. 13. On a collection of Earthworms. By Frank E. Beddard, M.A., F.R.S. With Plate XXL 14. The Gorgonacea. By ISA L. HiLES, B.Sc. With Plates XXII. and XXIII. PART III. 1899. 15. Orthogenetic variation in the shells of Chelonia, By HANS Gadow, M.A., Ph.D., F.R.S. With Plates XXIV.—XXV, and one text-figure. 16. Enteropneusta from the South Pacific, with notes on the West Indian Species. By ARTHUR Willey, D.Sc, Hon. M.A, Cantab. With Plates XXVI.— XXXII. and seven text-figuros. 17. On a collection of Echiurids from the Loyalty Islands, New Britain and China Straits, with an attempt to revise the group and to determine its geographical range. By ARTHUR E, Shipley, M.A. With Plate XXXI IL PART IV. 1900. 18. On the anatomy of a supposed new species of Coenopsammia from Lifu. By J. Stanley Gardiner, M.A., Eellow of Gonville and Caius College, Cambridge. With one plate. 19. On the Insects from New Britain. By D. Sharp, M.A., M.B., F.R.S. With one plate. 20. Report on the Stomatopoda and Macrura. By L. A. BORRADAILE, M.A., Lecturer of Selwyn College, Cambridge. With four plates. 21. Report on the Slugs. By Walter E. CollingE, F.Z.S., Mason College, Birmingham With two plates. 22. Report on the Polyzoa. By E. G. Philipps, Newnham College, Cambridge. With two plates. 23. The Hydroid Zoophytes. By LAURA ROSCOE Thornely, University College, Liverpool. With one plate. 24. Astrosclera willeyana^ the Type of a new Family of Calcareous Sponges. By J. J. LiSTER, M.A., St John's College, Cambridge. With five plates, 25. A contribution towards our knowledge of the Pterylography of the Megapodii. By W. P. PycRAFT, A.L.S., British Museum. With one plate. 26. The Stolonifera and Alcyonacea. By Sydney J. HiCKSON, M.A., D.Sc, F.R.S., Beyer Professor of Zoology in the Owens College, and ISA L. HiLES, B.Sc, Owens College, Manchester. With two plates. 27. Report on the Xeniidae. By J. H. ASHWORTH, B.Sc, Demonstrator in Zoology, Owens College, Manchester. With two plates. PART V. 1900. 28. A Description of the Entozoa collected by Dr Willey during his sojourn in the Western Pacific, ^y ARTHUR E. SHIPLEY, M.A. With Plates LIV.— LVL 29. On some South Pacific Nemertines collected by Dr Willey, By R. C. PUNNETT. With Plates LVIL—LXL 30. On the Young of the Robber Crab. By L. A. BORRADAILE, M.A. With figures in the text. 31. Anatomy of Neohelia porcellana (Moseley). By Edith M. Pratt, M.Sc. With PLites LXIL and LXIIL 32. On a new Blind Snake from Lifu, Loyalty Islands. By G. A. BoULENGER, F.R.S. With figures in the text. 33. On Crustacea brought by Dr Willey from the South Seas. By the Rev. T. R. R. Stebbing, F.R.S. With Plates LXIV.— LXXIV. PART VL 1902. .^4. Contribution to the Natural History of the Pearly Nautilus. By ARTHUR WiLLEY. D.Sc, F.R.S. BOUND 'Am" 9 ttKIV. or ^;«H. UNIVERSITY OF MICHIGAN 3 9015 02630 5402 - UC I Science UV>rarv QL '^^^UAJ^ct^U^tc^c^^^^,^^ ZOOLOGICAL RESULTS based on material from New Britain, New Guinea, Loyalty Islands and elsewhere, collected during the years 1895, 1896, and 1897, by Arthur Willey, D.Sc. Lond., Hon. M.A. Cantab., Late Balfour Student of the University of Cambridge. Demy 4to. Parts I, II, and III, Price 12s. 6d. each. Parts IV and V. Price 2ii*. each. Part VI (completing the work). Price 12s, 6d, PART I. 1898. 1. The anatomy and development of Peripattis novae-britanniae. By ARTHUR WiLLEY, M.A., D.Sc. With Plates I. — IV. and 7 figures in the text. 2. Metaprotella sandalensis, n. sp. [Caprellidae]. By Dr PAUL MAYER. With 6 figures in the text. 3. On a little-known Sea-snake from the South Pacific. By G. A. BOULENGER, F.R.S. With Plate V. 4. Report on the Centipedes and Millipedes. By R. I. POCOCK. With Plate VI. 5. Account of the Phasmidae with notes on the eggs. By D. SHARP, M.A., F.R.S. With Plates VIL— IX. 6. Scorpions, Pedipalpi and Spiders. By R. I. PocoCK. With Plates X. and XI. PART II. 1899. 7. Report on the specimens of the genus Millepora. By SYDNEY J. HiCKSON, M.A., D.Sc, F.R.S. With Plates XII.-^-XVI. 8. Report on the Echinoderms (other than Holothurians). By F. Jeffrey Bell, M.A, With figures on Plate XVI L and one figure in the text. 9. Holothurians. By F. P. Bedford, B.A. With figures on Plate XVII. 10. Report on the Sipunculoidea. By Arthur E. Shipley, M.A. With Plate XVIII. 11. On the Solitary Corals. By J. Stanley Gardiner, M.A. With figures on Plates XIX. and XX. 12. On the postembryonic development of Cycloseris. By J. STANLEY GARDINER, M.A. With figures on Plates XIX. and XX. 13. On a collection of Earthworms. By Frank E. Beddard, M.A., F.R.S. With Plate XXL 14. The Gorgonacea. By ISA L. HiLES, B.Sc. With Plates XXII. and XXIII. PART III. 1899. 15. Orthogenetic variation in the shells of Chelonia, By HANS Gadow, M.A., Ph.D., F.R.S. With Plates XXIV.— XXV, and one text-figure. 16. Enteropneusta from the South Pacific, with notes on the West Indian Species. By ARTHUR Willey, D.Sc, Hon. M.A, Cantab. With Plates XXVI.— XXXII. and seven text-figures. 17. On a collection of Echiurids from the Loyalty Islands, New Britain and China Straits, with an attempt to revise the group and to determine its geographical range. By ARTHUR E, SHIPLEY, M.A. With Plate XXXI 1 1. PART IV. 1900. 18. On the anatomy of a supposed new species of Coenopsammia from Lifu. By J. Stanley Gardiner, M.A., Eellow of Gonville and Caius College, Cambridge. With one plate. 19. On the Insects from New Britain. By D. Sharp, M.A., M.B., F.R.S. With one plate. 20. Report on the Stomatopoda and Macrura. By L. A. BORRADAILE, M.A., Lecturer of Selwyn College, Cambridge. With four plates. 21. Report on the Slugs. By Walter E. CollingE, F.Z.S., Mason College, Birmingham With two plates. 22. Report on the Polyzoa. By E. G. Philipps, Newnham College, Cambridge. With two plates. 23. The Hydroid Zoophytes. By LAURA ROSCOE Thornely, University College, Liverpool. With one plate. 24. Astrosclera willeyana^ the Type of a new Family of Calcareous Sponges. By J. J. LISTER, M.A., St John's College, Cambridge. With five plates. 25. A contribution towards our knowledge of the Pterylography of the Megapodii. By W. P. Pycraft, A.L.S., British Museum. With one plate. 26. The Stolonifera and Alcyonacea. By Sydney J. HiCKSON, M.A., D.Sc, F.R.S., Beyer Professor of Zoology in the Owens College, and ISA L. HiLES, B.Sc, Owens College, Manchester. With two plates. 27. Report on the Xeniidae. By J. H. ASHWORTH, B.Sc, Demonstrator in Zoology, Owens College, Manchester. With two plates. PART V. 1900. 28. A Description of the Entozoa collected by Dr Willey during his sojourn in the Western Pacific, "^y ARTHUR E. SHIPLEY, M.A. With Plates LIV.— LVI. 29. On some South Pacific Nemertines collected by Dr Willey. By R. C. PUNNETT. With Plates LVIL— LXI. 30. On the Young of the Robber Crab. By L. A. BORRADAILE, M.A. With figures in the text. 31. Anatomy of Neohelia porcellana (Moseley). By EDITH M. PRATT, M.SC. With mates LXII. and LXIII. 32. On a new Blind Snake from Lifu, Loyalty Islands. By G. A. BoULENGER, F.RS. With figures in the text. 33. On Crustacea brought by Dr Willey from the South Seas. By the Rev. T. R. R. Stebbing, F.R.S. With Plates LXIV.—LXXIV. PART VI. 1902. .^4. Contribution to the Natural History of the Pearly Nautilus. By ARTHUR WiLLEY, D.Sc, F.R.S. \ BOUND 'Am" 9 WW. or Mii*H. UNIVERSITY OF MICHIGAN 3 9015 02630 5402 Science LiVirarv QL iH 3 - UC ^ /^^^^UATt^t^U^^i^.^^^^^^ |i'- ■;;;» .:;;#'■ ■'SaSliI Ij^Ji'fii QL i3 ;yi«=- ■*.