ederim dh i Melt nae PO alin ie imate ahd tee eatran egedelibeen ene tenon et IF EP VOB /-2f Hibrary of the Museum | OF COMPARATIVE ZOOLOGY, AT HARVARD COLLEGE, CAMBRIDGE, MASS. Pounded by private subscription, in 1861. SSA LN Deposited by ALEX. AGASSIZ. A, No. JSUT MP Cree rT ere ‘ et Le im ‘4 Adlard and Son,] JAN OQ 1 R09 hd | New Series, No. CKXIX (Vol. XXXIII, Part 1). Price 10s, ee y . DECEMBER, 1891. . | / i a wat THE 4-2 / QUARTERLY JOURNAL MICROSCOPICAL SCIENCE. E. RAY LANKESTER, M.A., LL.D., F.RS., Honorary Fellow of Exeter College, Oxford. WITH THE CO-OPERATION OF E. KLEIN, M.D., F.RB.S., Lecturer on General Anatomy and Physiology in the Medical School of St. Bartholomew’s Hospital, ondon ; ADAM SEDGWICK, M.A., F.R.S., Fellow and Assistant-Lecturer of Trinity College, Cambridge ; AND A. MILNES MARSHALL, M.A., D.Sc., M.D., F.BS., Late Fellow of St. John’s College, Cambridge ; Professor in the Victoria University ; Beyer Professor of Zoology in the Owens College, Manchester. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. LONDON: J. & A. CHURCHILL, 11, NEW BURLINGTON STREET. ~ wpccexcr. , [Bartholomew Close. _——————$ $$ CONTENTS OF No. CXXIX.—New Series. MEMOIRS: PAGE Some Problems of Reproduction : a Comparative Study of Gametogeny and Protoplasmic Senescence and Rejuvenescence. By Marcus M. Hartoe, M.A., D.Sc., F.L.8., Professor of Natural History in the Queen’s College, Cork . ; : ; : é 1 On Wandering Cells in Echinoderms, &c., more especially with regard to Excretory Functions. By Hrrsert E. Durnam, M.A., King’s College, Cambridge, and Guy’s Hospital, London. (With PlateI) 81 On the Nature of the Excretory Processes in Marine Polyzoa. By Sipney F. Harmer, M.A., B.Sc., Fellow and Assistant Tutor of King’s College, Cambridge. (With Plates I] and III) . . 123 Spermatogenesis in Myxine glutinosa. By J. T. Cunninenam, M.A., Naturalist on the Staff of the Laboratory of the Marine Bio- logical Association, Plymouth. (With PlateIV) . : . 169 Notes on some Aquatic Oligocheta. By W. Braxtanp BrennaM, D.Se.Lond., Aldrichian Demonstrator of Comparative Anatomy, Oxford. (With Plates V, VI, and VII) . ; : ef} On the Differentiation of Leprosy and Tubercle Bacilli. By Cares Stater, M.B.Cantab. : : P ; e er | On a Specimen of the True Teeth of Ornithorhynchus. By Professor Cuar.es Stewart, P.L.S. (With Plate VIII) . : . 229 New Series, No. CKXX (Vol. XXXIII, Part 2). Price 10s, ye me JANUARY, 1892. THE QUARTERLY JOURNAL MICROSCOPICAL SCIENCE. E, RAY LANKESTER, M.A., LL.D., F.RB.S., Linacre Professor of Human and Comparative Anatomy, Fellow of Merton College, and Honorary Fellow of Exeter College, Oxford. WITH THE CO-OPERATION OF E. KLEIN, M.D., F.BS., Lecturer on General Anatomy and Pgriniogy se the Medical School of St. Bartholomew's Hospital, ondon ; ADAM SEDGWICK, M.A., F.B.S.,, Fellow and Assistant-Lecturer of Trinity College, Cambridge ; AND A. MILNES MARSHALL, M.A., D.Sc., M.D., F-BS., Late Fellow of St. John’s College, Cambridge ; Professor in the Victoria University ; Beyer Professor of Zoology | in the Owens College, Manchester. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. LONDON: J. & A. CHURCHILL, 11, NEW BURLINGTON STREET. MDCCCXCII. Adlard and Son,] {Bartholomew Close. CONTENTS OF No. CXXX.—New Series. MEMOIRS: PAGE On Onchnesoma Steenstrupii. By Artur EH. Surerey, M.A., F.L.S., Fellow and Lecturer of Christ’s College, Cambridge, and Demonstrator of Comparative hy ge in the University. (With Plate IX) . é ‘ ° é - 233 Note on a Sieve-like Membrane across the Oscula of a Species of Leucosolenia, with some Observations on the Histology of the Sponge. By Epwarp A. Mincuiy, Assistant to the Linacre Pro- fessor of Human and Comparative Anatomy in the University of Oxford. (With Plates X and XI) . a ‘ 5 s 95] The Development of the Oviduct in the Frog. By Ernzust W. MacBripz, B.A.Cantab., B.Sc.Lond., Scholar of St. John’s College, and Scholar of the maniac of London. (With Plates XII and xiIT) é : : ‘ é - 273 On the Nauplius Eye persisting in some Decapods. By Marcaret Rosrnson, University College, London. (With Plate XIV) - 283 Notes on Two Acanthodriloid Earthworms from New Zealand. By. W. Buaxtanp Brenuam, D.Sce.Lond., Aldrichian Demonstrator of Anatomy in the University of Oxford. (With Plates XV and XVI) 289 On a New Genus of Synascidians from Japan. By Asastro Oxa, of the Imperial University of Tokio, and ArtHuR Witzezy, B.Sc. Lond. (With Plates XVII and XVIII) . ; ‘ - 313 New Series, No. CKXXI (Vol. XXXIII, Part 3), Price 10s, )>: a4 MARCH, 1892. | ? ( THE : QUARTERLY JOURNAL MICROSCOPICAL SCIENCE. E, RAY LANKESTER, M.A., LL.D., F.RB.S., Linacre Professor of Human and Comparative Anatomy, Fellow of Merton College, and Honorary Fellow of Exeter College, Oxford. WITH THE CO-OPERATION OF E. KLEIN, M.D., F.RB.S., Lecturer on General Anatomy and Physiology in the Medical School of St. Bartholomew’s Hospital, ondon ; é ADAM SEDGWICK, M.A., F.RS., Fellow and Assistant-Lecturer of Trinity College, Cambridge ; AND A. MILNES MARSHALL, M.A., D.Sc., M.D., F.BS., Late Fellow of St. John’s College, Cambridge ; Professor in the Victoria University ; Beyer Professor of Zoology in the Owens College, Manchester. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. - LONDON: J. & A. CHURCHILL, 11, NEW BURLINGTON STREET. MDCCCXCII. Adlard and Son,) (Bartholomew Close. CONTENTS OF No. CXXXI.—New Series. MEMOIRS: PAGE A New Branchiate Oligochete (Branchiura Sowerbyi). By Franx E. Bepparp, M.A., Prosector to the Zoological Society of London, Lecturer on Biology at Guy’s Hospital. (With Plate XIX) . 325 The Formation of the Germ-layers in Crangon vulgaris. By W. F, R. Wexnvon, M.A., F.R.S., Fellow of St. John’s College, Cam- bridge ; Jodrell Professor of Zoology in University College, London. (With Plates XX, XXI, and XXII) : 343 The Pigment Cells of the Retina. By J. S. Bopzn and F. C. Sprawson, Students of Medicine, King’s College, London . . 365 Observations upon the Development of the Segmentation Cavity, the Archenteron, the Germinal Layers, and the Amnion in Mammals. By ArtHur Rostinsoy, M.D., Senior Demonstrator of Anatomy at the Owens College, Manchester. (With Plates XXIII, XXIV, XXV, XXVI, and XXVIII). : ° . . 369 | New Series, No. CKXXII (Vol. XXXIII, Part 4). Price 10s, 4 > | 44-9 oy JUNE, 1892. fuky Hb, (892, THE | QUARTERLY JOURNAL OF MIGROSCOPICAL SCIENCE. EDITED BY E. RAY LANKESTER, M.A., LL.D., F.RS., Linacre Professor of Human and Comparative Anatomy, Fellow of Merton College, and Honorary Fellow of Exeter College, Oxford. WITH THE CO-OPERATION OF E. KLEIN, M.D., F.RS., Lecturer on General Anatomy and Physiology in the Medical School of St. Bartholumew’s Hospital, London ; ADAM SEDGWICK, M.A., F.RS., Fellow and Lecturer of Trinity College, Cambridge ; AND A. MILNES MARSHALL, M.A., D.Sc., M.D., F.BS., Late Fellow of St. John’s College, Cambridge ; Professor in the Victoria University ; Beyer Professor of Zoology in the Owens College, Manchester. WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. LONDON: J. & A. CHURCHILL, 11, NEW BURLINGTON STREET. MDCCCXCII. Adlard and Son,) (Bartholomew Close. CONTENTS OF No. CXXXII.—New Series. MEMOIRS: Primitive Segmentation of the Vertebrate Brain. By Bertram H. Waters, A.B., E. M. Fellow in Biology. (With Plate XXVIII) . 457 — The Oscula and Anatomy of Leucosolenia clathrus, 0.8. By HE. A. Mincuin, B.A., Assistant to the Linacre Professor of Human and Comparative Anatomy, Oxford. (With Plate XXIX). 477 Researches into the Embryology of the Oligocheta. No. I.—On Certain Points in the Development of Acanthodrilus multi- porus. By Frank E. Bepparp, M.A., F.R.S., Prosector of the Zoological Society of London. (With Plates XXX and XXXI) . 497 On the Innervation of the Cerata of some Nudibranchiata. By W. A. Herpman, D.Sc., F.R.S., Professor of Natural History; and J. A. Cis, Assistant in the Zoological Laboratory, University College, Liverpool. (With Plates XXXII, XXXTII, and XXXIV). . 541 Notes on Elasmobranch Development. By Apam Srpewick, M.A., F.R.S., Fellow and Lecturer of ne yee ae (With Plate XXXV) 3 : . 559 ‘On the Paired Nephridia of a A the stosiiveses of the only remaining Nephridium of most Prosobranchs, and the Relations of the Nephridia to the Gonad and Genital Duct. By Dr. R. v. Er.ancer. (With Plates XXXVI and XXXVII) , . 587 PAGE Tittz, Contents, anD INDEX. Durham del con. lass. Maor Fournl Vo HMMS, 2 CORT. CLSS. Exo. F Huth, Lith? Edin? i: f me 4... Retractor muscles / bud y. Poly pude 8 : 5 = § a -- Tentacles _. Muscles ~. of operculum F. Huth, Lith® Edin? F Harmer del ) } S.F. Harmer del F Huth, Lith? Edin? Mor Sourr Ves UNS F Huth, Lith? Edin® dT. Cunningham del, Claitellam. KYL AVIL XVII Snermathectd ure. oe | Svermiducal pore.. nephridum --- } { / \ Orbe ary ~-=0 === Wee | j SPA TUSAL ----- Nee gq. 7. / | nat.size. TOSbLS 2-2-2: Te e I spermathecer ----- portion of body wall -..-- spermathecal pore ~~ ||| x spermedecad funnel. OVARY --------=---= B . Dorsal posterior. Fig. 2 sperm duct | SPETMUSAL --- ~~ | sperm pore ----- : CH | oy | fig. LZ. ) ry / prostate..--.-..- f 7 | i fig. Le. teagan en Sperm Sac --- meee nephrostome---.--..-¥3- BULiz ere Fig.Je. \ Po aeces! © Benham del F Huth, Lith? Edin® a ee eet enham del ; am de F Huth, Lith? Edint { if i | 1%) ke | 4) | | | / (yr at | | } | | Peale Veo es |e) sie) «| *| | 4] 4 8 F) 4 5) 4) oe) FL BL FL = In im W V Vi vi vil HK X XI XM XIN xIV xv XVI XI XVM XIX Ilyodrilus perrieri & Spirosperma }) IFO Jd W. TS € Fig. 3. 10 mW Vv www IX X XI XII XIN xXIV xv XVL XVI XVI XIX XX / [Re eal ey ay ay 41777) *]-14 14 | I XIV XV XVI XVILXVI XK XX ag Hemitubifex. @ Psammoryctes Spirosperma. Ul a Telmatodrilus. tham de] “ | Limnodrilus. F Huth, Lith? Edin? Micr. Jowrr. Vol. XXX. N.S. Pl. VIL. Anterior. ae Hollick del. Mintern Bros. lith. TEETH OF ORNITHORHYNCHUS. 7 F Huth, Lith’ Edin? ..wall of introvert. Mor Sour Vou MNS PY, I ALAS e rig Lz, @sophages ---- PL ACL. TALEC. SPErTIe Gaps corpuscles” ephiridenmne 3 8 Shipley del Mara B0;<209 6 oF ee Minchin del FHuth Lik Ede { at - Muor Sourru Ue KAUN S FLA. > Fig 18. f | | } { | t pe? 4 4 Ui / J, ' () Ban a 7: ec ate e ‘Minchin del. P.Huth, Lith® Edin® i : a Mor Sourn! Vo: HUMNSZ¢ XL. | ee 209. 6 oo 6°: ee BX Ags . % Ut wa JSpe Mac Bride del F. Huth, Lith? Eiia® MUMS PY, XU Maor Sourn Vet () ( CMuse. F. Huth, Lith® Bain? Mac Bride del. . Fy. 13. ae CHT; epeprenonemes’.s © “~2o~, F Huth, Lith? Edin* F. Huth, Lith? Edin® Benham del ’ a a -s >. A ae vat . Ss oe a : * - « F . . - - & — ‘ . . a é “ a ; =) . nie ; ts ~ q : . ~ ‘, r ted - ———— a KOO Berne. meine Wie F Huth, Lith” Edin? Benham del howe TAY BSW IEEE 79 eeunog Loy BP BAO Oka & Willey del. x © dypra oO Pot eile co ot Gas, “4 fj F Huth, Lith? Edin™ —" aslnp acs r . Seay : Purse , anda ee wae so a a . owen ee lie ger is FEB 6 _ Mintern Bros. lith. London. wreaNtn tay, Mier Fourn: Vo MUS HL ey Te e > F. Huth, Lith’ Edin? Weldon del ee - ye r at 1 an : hh” } Fit * yee 5 = Sipe rf re hae re : * ‘ ° "| ' af _. sed ‘ 7 a 2 - ‘ ' -. i . = x Z a @ ~ / : ' \ A - , - , ony oe eo “ i: : Hy 7 w 4 7 2 i : 7 i i f . : ‘ ‘ ‘ mh . . ‘ ‘ ‘ . - z ‘ “a Fig. 26. % . Mion Bourn ot J PUA TEES. hs, CARE. | i Mier Four: Vol. KAM NSP XE. | A. Robinson del F. Huth, Lith? Edin® -A00INSOnN del Mon IourniVoi UNS I CES FP. Huth, Lith? Edin? A. Robinson del bars a o& Micr Pour Vet OUNS 2, HD Cay CES AOC re RoSerams.,\ ae F.Huth, Lith? Edin? A. Robinson del aa i = £ A Robinson del. : F. Huth, Lith? Edin? Mier Pourn bo. LELMSLY, FOE FUG t 9. Gan A Robinson del. ce F. Euth, Lith? Edad ~ ‘ ms "1 * ’ - ls ri , ee nn - oe Ce i > ay eat VINS. S ihe ses eee ee Waters del. Mor Sourn VA XUN S PLUME, SiS = Fig. La. a7 Fig 15,6. isUebremesoss ST Se F Huth, Lith® Bain? E.A.Minchin del LSS ® 2 ON SS se Ws ASS ay Se { ¥. Huth, Lith? Edin= ¥.E.Beddard del : i at g Ao? F.uth, Lith? Eéint F.E.Beddard del. ‘ I> Fash pane ie BTTIAT ENN ( ( eae ae Mss i IM tll} Dr — Uf; Mintern Bros. lith. Londen. W, A.H. del, Wars a Meier. ie Wee, ATE NS ; ot, Py, ~ AYE Giri W. A, H. del ‘intern Bros. lith. London Meer bouvn. Vel. sev wis. F TUS c -~ oe 7 ' = A Om ep. n odont-- ‘Mintern Bros . ith. onda W.A.H. del ef head fig. a , = Re — ag 1 = ~ a oF 7 = | = edge of blastoderm. 7 , OF coil : edge of blastoderm: tact i ee (o of embryoniw regu. hlastopore still. oper reural canal : ee brain 7 - ay t ’ ve : nasal sac Wenasal . : \..___| medullary { folds lm edullary abide TUF ud. angle of Jaw » \ medullary ~ groove. medullary | Groove fronto-nasav. --mand. arch oviscerad clett Fugue | Fig. 8. jae 1! Mintern Bros. ith .London. ¥ eS } - > - - Micr Fourn VA LLMNSF, 3 F Huth, Lith” Edin? Rv Erlanger del (Ub. KEM WS PL EU F. Huth, Lith’ Edin? © ERNST MAYR LIBRARY IQUE 3 2044 19 : ” + - - == : —