« ; ms a nil . 4 a a3 5 weds wa f ag ae ve a7 i 4% . 4 wed j 3% * 3 nee Rectan Co at eee wee ASL ORed seeeet abil ene! \eemitee sae. cea eo ”~ HARVARD UNIVERSITY. hi BRAnRY OF THE MUSEUM OF COMPARATIVE ZOOLOGY. 184 an { f Ar ” New Series, No. 165 (Vol. 42, Part 1). Price 10s. 4] FEBRUARY, 1899. / THE QUARTERLY JOURNAL OF MICROSCOPICAL SCIENCE. EDITED KY : EH. RAY LANKESTER, M.A., LL.D., F.B.S., DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM; HONORARY FELLOW OF “ EXETER COLLEGE, OXFORD; CORRESPONDING MEMBER OF THE IMPERIAL ACADEMY OF SCIENCES OF ST. PETERSBURG,AND OF THE ACADEMY OF SCIENCES OF PHILADELPHIA; FOREIGN MEMBER Z OF THE ROYAL BOHEMFAN SOCIETY OF SCIENCES, AND OF TH ACADEMY OF THE LINCEL a OF ROME; ASSOCIATE OF THE ROYAL ACADEMY OF BELGIUM, HONORARY MEMBER z .. ie ee OF THE NEW YORK ACADEMY OF SCIENCES, AND OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY AND OF THE ROYAL PHYSICALSOCIETY OF EDINBURGH; HONORARY MEMBER OF THE BIOLO- GICAL SOCIETY OF PARIS ; FULLERIAN PROFESSOR o OF PHYSIOLUGY IN THE ROYAL INSTITU: a TION OF LONDON. WITH THE CO-OPERATION OF ADAM SEDGWICK, M.A., F.R.S., FELLOW AND TUTOK OF TRINITY COLLEGE, CAMBRIDGE j AND W. F. R. WELDON, M.A., F.R.S., JODRELL PROFESSOR OF ZOOLOGY AND COMPARATIVE ANATOMY IN UNIVERSITY COLLEGE, LONDON; LATE ’ FELLOW OF ST. JOHN S COLLEGE, CAMBRIDGE. WITH LITHOGRAPHIC Pil AND ENGRAVINGS ON WOOD. LONDON: J. & A. CHURCHILL, 7, hese MARLBOROUGH STREET. ca) 1899. dlard and Son,] [Bartholomew Close. CONTENTS OF No. 165.—New Series. MEMOIRS: PAGE Outlines of the Development of the Tuatara, Sphenodon (Hatteria) punctatus. By Arruur Denpy, D.Sc., Professor of Biology in the Canterbury College, University of New Zealand. (With Plates 1—10) : ‘ 2 , 7 - ; . nf Abstract and Review of the Memoir by G. Hieronymus “ On Chla- mydomyxa labyrinthuloides, Archer.” By J. W. JENKINSON, M.A., Exeter College, Oxford : : : . ae ese) _New Series, No. 166 (Vol. 42, Part 2). Price 10s. | cs U7 MAY, 1899. | THE QUARTERLY JOURNAL OF | MICROSCOPICAL SCIENCE. EDITED BY EK. RAY LANKESTER, M.A., LL.D., F.R.S., HONORARY FELLOW OF EXETER COLLEGE, OXFORD; CORRESPONDENT OF THE INSTITUTE OF FRANCE, AND OF THE IMPERIAL ACADEMY OF SCIENCES OF ST. PETERSBURG, AND OF THE ACADEMY OF SCIENCES OF PHILADELPHIA; FOREIGN MEMBER OF THE ROYAL BOHEMIAN SOCIETY OF SCIENCES, AND UF TH“ ACADEMY OF THE LINCEI OF ROME} ASSOCIATE OF THE ROYAL ACADEMY OF BELGIUM}; HONORARY MEMBER OF THE NEW YORK ACADEMY OF SCIENCES, AND OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, AND OF THE ROYAL | PHYSICALSOCIETY OF EDINBURGH ; HONORARY | MEMBER OF THE BIULOGICAL SOCIETY OF PARIS 3 DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM} FULLERIAN PROFESSOR OF PHYSIOLOGY IN THE ROYAL INSTITUTION OF LONDON. WITH THE CO-OPERATION OF ADAM SEDGWICK, M.A., F.R.S., FELLOW AND TUTOR OF TRINITY COLLEGE, CAMBRIDGE 3 AND W. F. R. WELDON, M.A., F.BS., LINACRE PROFESSOK OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGE, OXFORD; FELLOW OF 8T. JOHN’S COLLEGE, CAMBRIDGE. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. | | LONDON: : J. & A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. 1899. Adlard and Son,] [Bartholomew Close. CONTENTS OF No. 166.—New Series. MEMOIRS: On the Development of the Parietal Eye and Adjacent Organs in Sphenodon (Hatteria). By ArtHur Denny, B.Sc., F.L.S., Pro- fessor of Biology in the Canterbury College, University of New Zealand. (With Plates 11—13) The Molluses of the Great African Lakes.—IIT. Tanganyikia rufo- filosa, and the Genus Spekia. By J. E. S. Moorz. (With Plates 14—19) ; a: : 3 , The Molluses of the Great African Lakes.—IV. Nassopsis and Bythoceras. By J. E.S. Moorr. (With Plates 20 and 21) Further Study of Cytological Changes produced in Drosera. By Lity H. Hurts, Physiological Laboratory, Oxford. (With Plate 22) Remarks on some Recent, Work on the Protochorda, with a Con- densed Account of some Fresh Observations on the Entero- pneusta. By Artuur Wittey, M.A., D.Sc. PAGE Lit: 155 187 203 223 New Series, No. 167 (Vol. 42, Part 3). Price 10s. ‘ AUGUST, 1899. THE QUARTERLY JOURNAL OF MICROSCOPICAL SCIENCE. EDITED BY E. RAY LANKESTER, M.A., LL.D., F.B.S., HONORARY FELLOW OF EXETER COLLEGE, OXFORD; CORRESPONDENT OF THE INSTITUTE OF FRANCE, AND OF THE IMPERIAL ACADEMY OF SCIENCES OF ST. PETERSBURG, AND OF THE ACADEMY OF SCIENCES OF PHILADELPHIA; FOREIGN MEMBER OF THE ROYAL BOHEMIAN SOCIETY OF SCIENCES, AND OF THE ACADEMY OF THE LINCEI OF ROME; ASSOCIATE OF THE ROYAL ACADEMY OF BELGIUM; HONORARY MEMBER OF THE NEW YORK ACADEMY OF SCIENCES, AND OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, AND OF THE ROYAL PHYSICAL SOCIETY OF EDINBURGH ; HONORARY MEMBER OF THE BIOLOGICAL SOCLETY OF PARIS; DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM; FULLERIAN PROFESSOR OF PHYSIOLOGY IN THE ROYAL INSTITUTION OF GREAT BRITAIN. WITH THE CO-OPERATION OF ADAM SEDGWICK, M.A., F.B.S., FELLOW AND TUTOR OF TRINITY COLLEGE, CAMBRIDGE ; AND W. F. R. WELDON, M.A., F.R.S., LINACRE PROFESSOR OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGE, OXFORD; LATE FELLOW OF ST. JOHN’S COLLEGE, CAMBRIDGE. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. LONDON: J. & A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. ee) een ef « 1899. my —_ . _ Adlard and Son,] [Bartholomew Close. oe Te ae ae Pe eh Pe CONTENTS OF No. 167.—New Series. MEMOIRS : ; PAGE The Structure of Xenia Hicksoni, nov. sp., with some Observa- — tions on Heteroxenia Hlizabethe, Kolliker. By J. H. Asx- wortH, D.Se.(Lond.), Demonstrator in Zoology, Owens College, Manchester. (With Plates 23—27) : : P . 245 Notes on the Batrachians of the Paraguayan Chaco, with Observations upon their Breeding Habits and Development, especially with regard to Phyllomedusa hypochondrialis, Cope. Also a Description of a New Genus. By J. 8. Bupexrt, Trinity se a (With Plates 28—382) : : ; . 305 The Development of Echinoids. Part 1—The Larve of Echinus miliaris and Echinus esculentus. By E. W. MacBripz, M.A., Professor of Zoology in McGill University, Montreal. (With Plate 33). : ; : : 2 . 335 Hydroids from Wood’s Holl, Mass. : fee peregrinus, a New Unattached Marine Hydroid; Corynitis Agassizii and its Medusa. By L> Murzpacu. (With Plate 34) . . . 341 Note.—Arhynchus hemignathi. By Arthur E. Shipley . - 361 1899 RES | | New Series, No. 168 (Vol. 42, Part 4). Price 10s. SEPTEMBER, 1899. THE | QUARTERLY JOURNAL OF MICROSCOPICAL SCIENCE. EDITED BY EH. RAY LANKESTER, M.A., LL.D., F.RB.S., HONORARY FELLOW OF EXETER COLLEGE, OXFORD; CORRESPONDENT OF THE INSTITUTE OF FRANCE, AND OF THE IMPERIAL ACADEMY OF SCIENCES OF ST. PETERSBURG, AND OF THE ACADEMY OF SCIENCES OF PHILADELPHIA; FOREIGN MEMBER OF THE ROYAL BOHEMIAN SOCIETY OF SCIENCES, AND OF THE ACADEMY OF THE LINCEI OF ROME; ASSOCIATE OF THE ROYAL ACADEMY OF BELGIUM; HONORARY MEMBER OF THE NEW YORK ACADEMY OF SCIENCES, AND OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, AND OF THE ROYAL PHYSICAL SOCIETY OF EDINBURGH ; HONORARY MEMBER OF THE BIOLOGICAL SOCIETY OF PARIS; DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM; FULLERIAN PROFESSOR OF PHYSIOLOGY IN THE ROYAL INSTITUTION OF GREAT BRITAIN. WITH THE CO-OPERATION OF ADAM SEDGWICK, M.A., F.B.S., FELLOW AND TUTOR OF TRINITY COLLEGE, CAMBRIDGE 3 + AND : W. F. R. WELDON, M.A., F.R.S., . LINACRE PROFESSOR OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGE, OXFORD; ; LATE FELLOW OF ST. JOHN’S COLLEGE, CAMBRIDGE. | WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. al “ aI Sh 5 LONDON: J. & A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. 1899. cS cont ao - Gosia clticsiocst | | _ Adlard and Son,]_ Sa [Bartholomew Close. PEEP EIR? CONTENTS OF No. 168.—New Series. MEMOIRS: PAGE The Structure and Metamorphosis of the Larva of Spongilla lacustris. By Ricuarp Evans, B.A., Jesus College, Oxford. (With Plates 35—41) . : , : : ‘ : : . 363 On the Communication between the Colom and the Vascular System in the Leech, Hirudo medicinalis. By Epwin 8. Goopricu, B.A., Aldrichian Demonstrator of Comp. Anatomy, Oxford. (With Plates 42—44) 477 Balanoglossus otagoensis,n.sp. By W. Briaxtany BENHAM, D.Se., M.A., Professor of Biology in the University of Otago, New Zealand. (With Plate 45) . : ? : ; ‘ : . 497 The Movements of Copepoda. By E. W. MacBripz, Professor of Zoology, McGill University, Montreal . . 505 Arthur Dendy del DEVELOPMENT OF THE TUATARA. Stages C and D. Beis? PL oe ie + ta ee RG | | | Arthur Dendy del F Huth, Lith’ Edin® DEVELOPMENT OF THE TUATARA. Stages D and E. ROOD S CS ey 9, —— ames ee LiM. SEeeso teu DEVELOPMENT OF THE TUATARA. Stages E and F. ee 7 Aart Soura Micr Sei: Vol ae MST% 4. F Huth, Litht Edin? Arthur Dendy del. 1 DEVELOPMENT OF THE TUATARA. Stage F. z Dont har oe We ane G, - F Huth, Lith? Edin? a rere tars: aneasemen amen ten Arthur Dendy del. Stages G,H and J. DEVELOPMENT OF THE TUATARA. F. Ruth, Lith? Edin? be 4aMSL2.6. J. Stage DEVELOPMENT OF THE TUATARA. Arthur Dendy del. Luart Fourn Moor Sci VANS o , an Arthur Dendy del F. Buth, Lith? Edin= DEVELOPMENT OF THE TUATARA. Stages Jand K. Arthur Dendy del. F. Huth, Lith® Edin? DEVELOPMENT OF THE TUATARA. Stage L. Lieceneal Quart Fourn. Moor Sci. Vot 42 NSTP4, 9 HB. Arthur Dendy del F Huth, Lith? Edin? DEVELOPMENT OF THE TUATARA. Stages M,N and O. We. 420 F210. F. Huth, Lith? Edin? DEVELOPMENT OF THE TUATARA. Stages 0,P,Q andR. Quart Four Moor’ Sci: Vet 42.NSTYM ge zi DiS 6, cai Oar Coe rol) syste ae lle ‘A DOOM no Tay, Se IA @ @ 8 & - EPL ATION “Liga, _— Ege TS 2 rie a a HY) | — \y y A ‘ an 7 LTE NG CUO eS” ee § Se a G OG Oy) a6 Ne a = | es Oe, Ge: A te RT Y Ant® —> Arthur Dendy del F Huth, Lith? Edin® — ae eS SS Se ee . < 2 & 7 Quart Sour. Moor Sci Vl 42, NS: M2 Yi Com.Post.-- ra Thal panes Epd. =) z Se Sars ‘Qg5a 9 2 Tope PAD) Ae) aS. Sa0 Hy Kaeo -- Derm B eee RO GIRO 2 feel 19) yi AAW Out. W BY Par.T Sao ‘ SS AS ... a F Huth, Lith” Edin” Ty. SUH. pr F Huth, Lith® Edin® F Huth, Lith? Edin? — Luart FournMéor Sei. VA 42NSLY,32. F Huth, Lith? Edin? Ss zg % 5 +S BS yX Ss R $2] Ss oy R R 5. 8 Bm & Roun : . DN xX ZL L - D7: Post.o. 7 days old. OCLC LAN = Quart Fourm Mice’ Sci. Lt 42 NSE, 33 Larva of Echinus esculentus = Stn, Qn iy Larva of Echinus miliaris F. Huth, Lith? Edin? Larva of Echinus esculentus 3 weeks old. esculentus 4 weeks old. Larva of Echinus L.Muhrbach del. Dp urn Mo Sci DAF H LTS, Fh ) x 256 x 450 _ F Huth, Lith? Edint Quart, fourr: Mecr-Sci: VolA42 MS. GPL 5. SN eat SR Per AT SA VAIAIA LAST Pf can ve es ‘Tith, Warner 2 Winter, Frankfort R. Evans del: ad nar. Quart: Four Mecr-Sci: Vol, 42, NS. G36 Wy , QeoeEg, SOIR -GZO~ So Oleg ee 0 - “4 yoo eS Ye VA EROS a 2} é te) = 99) (ODS pd } & EC } N Pt : \ gn yb gr nthe = uth. Werner & Winter, Frankfort OM. niflic. cgn mae 8880 ate ae = Duane Sasre Mer Se. Vksa NSLS? Tith Werner & Winter Frank fort?a. L38. C c A tu -y ie) AV oy. Sounrn Ma ZUMVIU: Gy \y ; | | j i rt 2 Lith Werner & Winter, Frankfort 7M. R Evans del. ad nal. a 1 ‘ ; = 4 7 5 ae ‘g male 7 7. Phe " eas R Evans del.adnot. ‘Tah. Werner k Winter, Franklort ie, Luart Four Mansa Vob4E NS P40. _ —~ — ed : == - : .- = = a hth. Werner &Winter, Eranktort 1M. R. Evans deli ad nat Suart. Sourn Mord Seii Vou 42s FA ha Dorsac Sirius tt | Qoening of latero-dorsal Lbpery) ido laterad vessel. i x Latero-abdomingl yessed Gonad | Fig. $: Lig. 6. - ght . poe ' Lavero-cbdominaby, Fig. 4. Lett branch of Dorsaé: 8. Dorsal Sirius \ hight branch of Dorsat S. seve DRERSEER SERA Yatero-abdominad v. Latero- abdominal 1 ; : = i i Posterior | ie 1-2-1 Fadcero- | aD” dae? 4 i ii 1) || lateracv. Ventrad | | 7 SwULS +1 7 F Huth, Lith® Edin? Bader: caer ee Brazel of ..-.---------es Dorsal Sinus Branch from Annular yess eo p ‘s Huth, Lith’ Edin? Luare Fourn Mior!Sei Vou 4205. P, 4 Latero-dorsad vessel EB tig. LE. \ Dateral vessel PE TOES, toecre Intestine \ e, \ | Right Lateral Intestinal j vessel. H i | > 4 eee Capillary vessel fe To the dorsat LeZis Annular vessed, iy Rie Os eS Se - ¥ ae. 4 P. Hath, Lith” Edin? Suart Sourn Mor Sct. Vel 42 NSPL 4S \ \ w\\\ \ JU 9 OP ea.nep, @22 ae Ua a Se aN WS YY j F. Huth, Lith® Edin® ) ‘ Tes Pe aie oo ome oi . , . a Ay a ‘ re a A . | sees oe b r i) f i ' i : ate ; ‘ 1 seni ae ee a, i aR ” ° ’ > A) (ares x ete, ail ac, a . vj ot ' ind = | aaah : . ier ‘ , ms =— + : 7S f 1 f ‘ 4 ' bd . . ; gt TOR | ! : i 7 et , a ’ \ ONE OR QE PTR RT PS epee HA RN Psy HS Nae * ts - , A ~ J - P 4 . . a ied a a FS ND ORE ELT ae NMRA RE ER Eat POOR oe Ae ha one ERE Sap ime Oo mata Gul = aisha iia Pest a Saw Aan ered ng lst TS, bP ld se YOR PPA oe 96 aN HES carder ae Hevea mate genr Bar pai Be a ae —