SMITHSONIAN INSTITUTION LIBRARIES. Gift HARASEWYCH M.G.

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2 SMITHSONIAN INSTITUTION LIBRARIES ^* AA Gift of M.G. HARASEWYCH

9 ILLUSTRATIONS ZOOLOGY OF THE OF THE ROYAL INDIAN MARINE SURVEY SHIP INVESTIGATOR UNDER THE COMMAND OF COMMANDER W. G. BEAUCHAMP, R.I.M. MOLLUSCA-Pt. Vi, Pis. XXI-XXIlh UNDER THE DIRECTION OF N, ANNANDALE, D.Sc., C.M.Z.S., F.L.S., Superintendent of the Indian Museum, AND OF F. H. STEWART, M.A., D.Sc., M.B., Surgeon-Naturalist to the Indian Marine Survey SuMfeht) motx the gimtitm at (Baptitm Wi. glatiwben:, 'gxxvtiox at the ^togal IitMan Jtlarine. 3S-, CALCUTTA SUPERINTENDENT GOVERNMENT PRINTING, INDIA 1909 Price One Rupee Eight Annas. Sold by the Superintendent of the Indian Museifm, *%C*

11 A35- /*/* MoLLfOh

12 EXPLANATION OF PLATES. MOLLUSCA. PLATE I. Figs* 1, la 9 lb 9 lc Nucttlana indica, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 16. Figs. 2, 2a 9 2b 9 2c. NucuZanafumosa, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, P- 16. Figs a 9 Sb 9 3c. Nucula {Acila) fultoni, E. A. Smith. Figs. 4, 4a, 4b, C. Nucula bengalensis, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p, 15. Figs. S 9 Sa 9 5b, 5c. Nucu!a donaciformis, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 15.

13 Nucula E A Smith 5 Nucula A E.. Zoolooy of the R.LM.S. Investigator. Mollusca, Plate I. l.v-3 lb.: 2b.*4 3c.*- 1 3b. 4o. >c4 4ct.x2 1,2 4b. x 1 Bo. yi. 4 bay. XT. 5.xi 1. Nuculanaindica.E.A.Smith. 2. Nuculana fumos a, E. 4. bengalensis,.... A. Smith. 3. donaciformis, E. Nucula fultom,. Smith A. Smith. S.C.Mondul.del. Photo-etching "Survey of India Offices, Calcutta.June 189T

16 EXPLANATION OF PLATES. MQLLUSCA. PLATE II. Figs. 1, la. Amussium andamanicum, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p. 172 ; and (6) XVI. September, 1895, P Figs* 2, 2a. Amussium solitarium, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs. 3, 3a, Amussium alcocki, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs. 9 4za. Lucina bengalensis, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs. 5 9 Sa. Glauconome sculpta, Sowerby, Proceedings of the Malacological Society, Vol. I. March, 1894, p. 40. Figs a 9 6b 9 6c. Yoldia angulata, Sowerby. Figs. 7, 7a, 7b. Malletia conspicua, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 17.

17 E.A.Smith. Zoology of the BJ.M.S. Investigator. Molhisca, Plate II. 2x3. 1. Amu s shim andamamcum. E. A. Smith.. 2. Amussrum sohtarrum, E. A. Smith. 3. Amus shim alcocki, E.A.Smih. 4r. lucma henpaleiisis, 5. Cxlaucanome sculpta, Sowh. 6. Yolclia angulata, Sowb. S.C.Mondul del. 7. Malletia COnspiClia. E.A.Smith. Photo-etching- Survey of India Offices. Calcutta.Juty 1837.

20 EXPLANATION OF PLATES. MOLLUSCA. PLATE III. Figs. 1, la, lb. Cryptodon acuticarinatus, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 14. Figs. 2, 2a, 2b. Cryptodon investigatoris, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 13. Figs. 3, 3a, 3b. Lucina spinifera, (Montagu) E. A. Smith, Annals and Magazine of Natural History, (6) XVI. p. 12. Figs. 4, 4a, 4b, 4c- Limopsis indica, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs. 5, 5a. Cuspidaria macrorhynckus, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, P- I2 - Fig. 6. -Cuspidaria (Cardiomya) alcocki, E, A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs a. - % Abra maxima, Sowerby, Proceedings Malacological Society, 1894, Vol. I. p. 40, pi. v. fig. 5, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. 1894, p. 169; and XVI. 1895, P- I0 - Figs. 8, Sa. Abra convexior, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 10. Figs, 9, 9a. Tellina parvula, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, p. 10. * Syndesmya maxima.

21 . Zoology of the R.I. M.S. Investigator. Mohusca, Plate III. 1. Crypt odon acuticarmatus. E.A.Smith, x 2i, 2. Cryptodon mvesti^atoris, E.A Smith, x li. 3. Lucina spmifera, Montagu, x 2i. 4. Limopsis indica. E.A Smith x Cuspidana macrorhynchus. E.A.Smith, x Guspidaria alcockl E.A.Smith, x 3. S. C.Mondul del 7. Ahra maxima. Sowh, x li. 8. Abra convexior, E.A Smith, x Tellma parvula, E. A Smith, x 3. Photo-etchm - Survey of India. Offices, Calcutta. June 1897.

24 EXPLANATION OF PLATES. MOLLUSCA. PLATE IV. Figs, la, lb, lc, Id, le Verticordia (Euciroa) eburnea, Wood-Mason and Alcock, Annals and Magazine of Natural History, (6) VIII. December, 1891, p Figs. 2, 2a. Lima (Limatula) subtilis, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. July, 1895, P- i& Figs. 3, 3a, 3b. Crassatella indica, E. A. Smith, Annals and Magazine of Natural History, (6) XVI. September, 1895, p Figs. 4:, 4a. Venus juvenilis, E. A. Smith, Annals and Magazine of Natural History ) (6) XVI. July, 1895, P- 9- Figs. 5, 5a. Cytherea (Caryatis) pudicissima, E. A. Smith, Annals and Magazine of Natural History, (6) XIV. September, 1894, p Figs, 6 9 6a Cryptodon philippinarum, {Hanley), E. A. Smith, Annals and Magazine of Natural History, (6) XVI, p. 13.

25 . Zoology o the R.I.M.S. Investigator Mollusca. Plate W. % 2<XX b. 1. Verticordia (Euciroa.) edurnea,~wrm.8c A. le X2. 2. Lima suhulis, E.A.Smith xs. 3. Crassatellamdica, E.A.Smith x ih 4. Venus juvenilis, E.A.Smith xi. 6.. Cytherea ( Caryatis ) pudicissima, E.A.Smith X3. 6. Crvptodon phihppmarum.hanley X2. S.CMondul, del.?iio to-etching- Survey of India Offices. Calcutta.August 1837

28 EXPLANATION OF PLATES. MOLLUSCA. PLATE V. Figs. 1, la. Pontiothauma mirabile, E. A. Smith, Annals and Magazine of Natural History, (6), XVI. July, 1895, P- 2 - Figs, 2, 2a. Pontiothauma abyssicola, E. A. Smith, Annals and Magazine of Natural History, (6), XIV. July, 1895, p. 3.

29 Zoology of the R.I. M.S. Investigator. Mollusca Plate V. 1. Pontiothauma mirabile, E. A. Smith. 2. Pontiothauma abvssicola, E. A. Smith. Aondul del. Photo-etching-Survey of India Offices, Calcutta/March 1897.

32 EXPLANATION OF PLATES. MOLLUSCA. PLATE VI. Figs. 1 9 la, lb. Murex malabaricus, E. A. Smith, Annals and Magazine of Natural History, (6), XIV. September, 1894, p Figs a. Pirula investigatoris, E. A. Smith, Annals and Magazine of Natural History, (6), XIV. November, 1894, p. 367.

33 S.C.Moniul.del. Pliot o-etclimg -Survey of India Offices, CaLcutta,Mardh Zoology of the RIM. S.Investigator. Molksca Plate VI. 1. Mtirex malabaricus.ea.smith. 2. Pirula mvestipatoris, E. A.. Smith

35 > - <H. u: p4. s/u - v//i (Sfg.

36 EXPLANATION OF PLATES. MOLLUSCA. PLATE VII. Figs. 1, la. Pleurotorna (Ancistrosyrinx) travancorica, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs a. Pleuvotoma (Surcula) profundorum, E. A. Smith, Annals and Magazine of Natural H istor y> (6) XVIII, 1896, p Figs* 3, 3a. Natica (Lunatid) abyssicola, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs. &, 4a. Natica (Lunatid) levis, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs. S, 5a. Dentalium magnificum, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs. 6, 6a. Cardium (Fragum) sintillimum, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p. 372.

37 Zoology of the R.I. M. S. Investigator. Molmsca. Elate VII. TiOu x 2. 1x2. la.x 2. 3x3. 3 ojx 3. 4x2. 4a,x2. 6x2. Go/X 2. S.C.Mondul, del 1 ; Fleurotoma (Aicistrosyrmx) trav-aiicorica, E. A. Smith. 2, Pleurotoma (Sarciila) profandoram, E. A. Smith. 3,Natica (Lnnatia) abjssicola.e. A. Smith. 4,rTatica (Lnnatia) livis, E.A. Smith. 5, D entalmm magmficum, E. A. Smith. 6, Cardmm Era^um smiiilimimi, E. A. Smith. Photo - etc hiti ft. Survey of India Offices, Calcutta, August,

40 EXPLANATION OF PLATES. MOLLUSCA. PLATE VIII. Figs. 1, la, lb, Ic. Yoldia atiatina, E, A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs. 2, 2a. Cnspidaria approximately E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs. 3, 3a. Myonera bicarinata, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p Figs, 4, 4a.- Scrobicularia ceylonica, E. A. Smith, Annals and Magazine of Natural History, (6) XVIII, 1896, p. 375*

41 CxispicLaria Zoology of the R. I. M. S. Investigator. Mollusca Plate VIE. lxii. 1 a x I2 lb x 3. lc xli 2x3. 2 a x3. 3x3. 3 a, x 3 4x2. 4ax2. 1. Yoliia anatma.e.a. Smith. 2. approximata.e. A. Smith. 3. Myouera/bicarinata.E.A. Smith.. 4. Scrobicukria ceylamca.e.a. Smith. S C. Mcaidul, del. Ekoto-etcbmg. Survey of India Offices, Calcutta, July, 189 U

43 tfoi

44 EXPLANATION OF PLATE. MOLLUSCA. PLATE IX. Figs. 1, la. Pleurotoma optata, E. A. Smith, Annals and Magazine of Natural History, series 7, Vol. IV. October, 1899, p. 238, Figs. 2, 2a. Pleurotonia oldhami, E. A. Smith, loc. admodum cit. Figs. 3, 3a* Pleurotoma (Surcula) breviplicata, E. A. Smith, loc. admodum cit. Figs. & 9 ^La. Pleurotoma (Surcula) eurina, E. A. Smith, torn, cit., p Figs a. Pleurotoma (Surcula) ftraecipua, E. A. Smith, loc. admodum cit. Figs. 6, 6a. Pieurotoma (Surcula) arcana, E. A. Smith, loe. admodum cit.

45 Plenrotoma 3. Zoology of the R.I.M.S. Investigator. Mollusca, Plate K. 1X2. lax 2 2x1*. 3X2*. 3 ax 2*. 4x14. 5ax2. 6X3. 6ax3. 1. Plenrotoma optata. 2. oldliami. Pleurotoma (surcula) hreviplicata. 4. Pleurotoma (surcula) eurina. 5. Pleirrotoma (swc"ula) praecrpua. 6. Pleurotoma (surcula) arcana. S. C.Mondul, del. Photogravure, Survey of India Offices, Calcutta,August 1901.

48 EXPLANATION OF PLATE. MOLLUSCA. PLATE X. Figs, 1 9 la. Drillia investigatoris, E. A. Smith, Annals- and Magazine of Natural History, series 7, Vol. IV. October, 1899, p Fig. 2. Drittia captiva, E. A. Smith, loc. admodum cit. Fig. 3. Drillia capta, E. A. Smith, loc. admodum cit. Figs. & 9 4:a. Trofihon tenuirostratus, E. A. Smith, torn, cit., p Figs, 5 9 5a, Trophon indicus, E. A. Smith, loc. admodum cit. Figs, 6, 6a. Nassaria laevior, E. A. Smith, torn, cit., p Figs. 7, 7a. Tritonidea delicata, E. A. Smith, loc. admodum cit. Figs. 8, 8a. Fusus captivus, E. A. Smith, loc. admodum cit.

49 Drillia.. Trophon Zoology of the ELI.M.S. Investigator. Mollusc a Plate. X. lxu. la/x 1*. 5cuX2. 4X3. ' 6X2. 6aX2. 7X2. ("O/X Drillia investipatoris. 2. captiva 3 Drillia capta. 41 8X21. 8a/X2i. teuuiro stratus. 6. Tr option mdiciis. 6. Nassaria laevior. 7. Trrtomdea delicata. 8. Fusus captrvus. E C. Mondul.del. Photogravure. SijrveyofIadia0fflces,Calcutta,Septemberl

52 EXPLANATION OF PLATE. MOLLUSCA. PLATE XL Figs. 1, la. Pisania angusta, E. A. Smith, Annals and Magazine of Natural History, series 7, Vol. IV, October, 1899, P Figs. 2, 2a. Nassa aracanensis, E. A. Smith, loc. admodum cit. Figs. 3, 3a. Nassa diluta, E. A. Smith, loc. admodum cit. cit. Figs. 4:, 4:a. Ancilla leucospira, E. A. Smith, torn, cit,, p Figs. 5, 5a. Cancellaria cretacea, E. A. Smith, loc. admodum Figs. 6, 6a. Ancilla glans, E, A. Smith, torn, cit., p Figs. 7, 7a. Columbella (Mitrella) supraplicata, E. A. Smith, tom % cit., p cit. Figs. 8, 8a. Coralliophila indica, E. A. Smith, loc. admodum

53 7. Zoology of the R.I.M.S.Tnvestioator. Mollusca, Plate XI. 1x3. 1&X3. 3x 4. 3ax 4. ixi 4ax 4. 8x2*. 3 0yX2%. 1. Pisama angusta. 2- ISfassa aracanensis. 3. Nassa diluta. 4. Ancillaleucospira. 5. Cancellaria cretacea. S.C.Mondul.del. 6. Ancilla Lans. Columbella ( Mitrella] supraplicata. 8. Coralliophila indie a. Photogravure, Survey of India Offices.Calciitta. September 1901.

56 EXPLANATION OF PLATE. MOLLUSCA. PLATE XII. Figs. 1, la. Scalaria bengalensis, E. A. Smith, Annals and Magazine of Natural History, series 7, Vol. IV, October, 1899, p Figs a. Scalaria subcasta, E. A. Smith, loc. admodum cit. p Figs. 3, 3a. Leptothyra delecta, E. A. Smith, torn, cit., P Figs. 4:, a-c t Astralium bathyraphe, E. A. Smith, torn, cit,, Figs. 5, 5a. Turbo incoloratus, E. A. Smith, loc. admodum cit. Figs. 6, 6a-b. Solariella oxycona, E. A. Smith, torn, cit., p Figs a, Puncturella (Cvanopsis) indica, E. A. Smith, torn, cit., p cit. Figs. 8, 8a. Fissurella delicata, E. A. Smith, loc. admodum

57 b. Zoology of tlie R.LM.S.Investioator. Mollusca Plate XH. bctx 5 6bx2*. 1. Scalaria "bengalensis. 2. Scalaria subcasta. 3. Leptothyra delecta. 4. Astralmm Dathyraplie. Turbo mcoloratus. S.C.Mondul.iel 6. Solariella oxycoxia. 7. Puncturella (Granopsis) indie a. 8. Fissurella delicata. Eliot owavure, Survey of India Offices, Calcutta..Octol>er 1901.

60 EXPLANATION OF PLATE. MOLLUSCA. PLATE XIII. Figs, 1, la. Tellina travaticorica, E. A. Smith, Annals and Magazine of Natural History, series 7, Vol. IV, October, 1899, P p Figs. 2, 2a Abra affinis, E. A. Smith, torn, at., p Figs. 3, 3a. Area (Barbatia) incerta y E. A. Smith, torn, cit., Figs. 4, 4a. Lima indtea, E. A. Smith, loc. admodum cit. Figs. 5, Sa, Myodora -quadrata, E. A. Smith, torn. cit'. t p. 250.

61 Abra 3. n Zoology of the RIM. S. Investigator. Mollusca,Plate Ixtt, 2X24. 2&X 2%. 3X2*. 5x4. 5cVX4: 1 Tellina travanconca. 2. afirnis. Area (Barbatra) incerta. 4. Limamdica. 5. Myodora quadrata. S.C.Mondul.del. Photogravure, Survey of India Offices, CaLcutta.July 1301.

63 / V X ifoy

64 EXPLANATION OF PLATE. MOLLUSCA. PLATE XIV. Figs, 1 9 la. Conus semisulcatum, Sowerby, Proc. Zool. Soc, 1870, p. 257 and E. A. Smith, Ann. Mag. Nat. Hist., Ser. ; 7, Vol. XIII, June, 1904, p Figs. 2, 2a. Pleurotoma [Surcula) margaritce, E. A. Smith, Ann. Mag. Nat. Hist., Ser. 7, Vol. XIII, June, 1904, p Figs, 3, 3a* Pleurotoma vagata, E. A Smith, Op. cit. t P Figs. & 9 4:a.~Drillia worthingtom ', E. A. Smith, Op. cil, p. 460.

65 PS Zoology of tine R.I.M.S.Laveshgator. MoUusca,Plate IN. la. 4. 4a. 1. Conns semisulcatus.sowb.x Reurotoma f SnrcuLaJ Mar aritae,e.a.smith. x it 3. Pleurotoma vaoata, E.A.Smith, xlt. 4. Drillia Worthmgtom, E.A.Smith, x 4. Survey of India [frees, Calcutta. July 1906.

67 30

68 I 70Ḟigs, 2% 2a. Clathurella fierlissa, E. A. Smith, Ann. Mag. EXPLANATION OF PLATE. MOLLUSCA. PLATE XV. Fig. l. Latiaxis diadema (A. Adams). E. A. Smith, Ann. Mag. Nat. Hist., Ser. 7, Vol. XIII, June, 1904, p Murex diadema, A. Adams, Proc. Zool. Soc, 1853, Nat. Hist., Ser. 7, Vol. XIII, June, 1904, p Figs a Marginella grisea (Jousseaume). E. A. Smith, Ann. Mag. Nat. Hist, Ser. 7, Vol. XIII, June, 1904, p Persicula grisea, Jousseaume, Rev. Mag. Zool., 1875, p Figs. 4, a. Lacuna globosa, E. A. Smith, Ann. Mag. Nat Hist, Ser. 7, Vol. XIII, June, 1904, p Figs a. -Chiton ceylanicus, E. A. Smith, Ann. Mag. Nat. Hist., Ser. 7, Vol. XIV, July, 1904, p. 7.

69 : - Zoology of the R.I.M.S. Investigator. Mollusc a, Plate XV. 1. Latiaxis chadema, A.Adams, x Clathuxeila perils saje.a. Smith, x Margmella grisea, Jouss, x Lacuna giobos a, E.A.Smith, x Chiton ceylamcus, E.A. Smith, x 4. LOto arore. Survey o InBia, 0 &ces,calcutta.august 1906.

71 31

72 EXPLANATION OF PLATE. MOLLUSCA. PLATE XVI. Figs. 1, la 9 lb. Capulus fragilis, E. A. Smith, Ana. Mag. Nat. Hist., Ser. 7, Vol. XIV, July, 1904, p. 1. Figs. 2, 2a*-~-Scaphander ceylanica, E. A. Smith, Op. cit P. 5. Figs, 3 9 3a 9 3b*~Acmcea minutissimat E. A. Smith, Op. cit., p. 4,

73 Fbotog] STirreyc In.dia.OflLces,Calcuxta, 1kLr, 33 Zoology of llier.i.m.s. Investigator. Mollusca, Plate XVI. lay. It 1. Gapulus frafi'ihs, El. A. Smith., x *. 2. Scaphander ceylamca., E.A.Smith, x Acmasa imnutlssima, E.A Smith, x ie.

75 34

76 EXPLANATION OF PLATE. MOLLUSCA. PLATE XVII. Figs. 1, la, Atys submalleata, E. A. Smith, Ann. Mag. Nat. Hist, Ser. 7, Vol. XIV, July, 1904, p. 6. p. 6. Figs a. Cylichna andamanica i E. A. Smith, Op. cit., Figs a> Xylophaga indica, E. A. Smith, Op. cit. t p. 7. Figs. & 9 Ad) 4:b, 4Lc Vesicomya indica, E. A. Smith, Op. cit. t p. 9.

77 Zoology of the R.I.M. S. Investigator. Mollusca, Plate XVII. Zcu. 1. Atys sudmalleat u,e.a.smith x Cylichna, andamamca,e.a. Smith x e. 3. Xylophaga, mdica, E.A.Smith x Vesicomya, indica.,e.asitiith. [^ fei Photogravure, Survey of India, Offices, Calcutta, June,

79 3fc

80 EXPLANATION OF PLATE. MOLLUSCA. PLATE XVIII. Figs. 1, la. Psammobia araka7tenis, E. A. Smith, Ann. Mag. Nat. Hist., Ser. 7, Vol. XIV, July, 1904, p. 10. Figs. 2, 2a. Myrina indica, E. A. Smith, Op. cit., p. n. p. 8. Figs. 3, 3a. Anatina andamanica, E. A. Smith, Op. cit., Figs. 4, 4a, 4b. Pecten alcocki, E. A. Smith, Op. cit., p. 13.

81 3? Zoology of the RIM. S. Investigator. Molina ca, Plate XVIII. leu. 3C6. %, 4-4a, Psammoliia arakanensis.e.a.smith x Mvrina, mdica, E. A. Smith x Anatma c a,ndamamca,e.asmith x Pecten alcocki.e.a.smithx al. S C Mondul del Surrey of India. Offices, Calcutta., July 190 fi

83 38 ^-^1, <?%. x/ IQoS 7 x-xx

84 EXPLANATION OF PLATE. PLATE XIX-MOLLUSCA. Figs. 1, 2.-NATICA DIMIDIATA, E. A. Smith. Natica dimidiata, E. A. Smith, Ann. Mag. Nat. Hist. (7), Vol. XVIII, p. 172 (1906). p 248. Figs. 3, 4. NATICA INCERTA, E. A. Smith. Natica incerta, E> A. Smith, op. cit. y p Figs. 5, 6. SCAPHANDER VICINUS, E. A. Smith. Scaphander vicinus, E. A. Smith, Ann. Mag. Nat. Hist., torn, cit., Figs. 7, ^.-SCAPHANDER ANDAMANICUS, E. A, Smith. Scaphander andamanicus, E. A. Smith, Ann. Mag, Nat. Hist., (6), Vol. XIV, p. 167, pi. IV, % 15 (1894); series 7, Vol. XIV, p. 5 (1904) and Vol. XVIII, p. 247 (1906).

85 Zoology of the R.I.M.S. Investigator. /In II use a, Plate XIX Natica dimidiata, Smith. x Scaphander vicinus, Smith. x Li Natica incerta, Smith, x 1*. 7. 8, Scaphander andam am c us, Snnth.x u. A.C.Chowdhary; del. iyure. Survey oflndia Offioes.Calcutta Maroh.1908.

86 *s*

87 4o

88 EXPLANATION OF PLATE. PLATE XX-MOLLUSCA. Figs. 1, 2.-PLEUR0T0MA (SURCULA) THISBE, E. A. Smith. Pleurotoma thisbe, E. A. Smith, Ann. Mag. Nat. Hist. (7), Vol. XVIII, p. 162 (1906). Figs. 3, 4.-PLEUR0T0MA CARINATA, Gray. Pleurotoma carinata, Gray, E. A. Smith, Ann. Mag. Nat. Hist. (6), Vol. XXIII, p. 368 (1896), and (7), Vol. XVIII, p. 160(1906), Figs. 5, 6. ANCILLA ALCOCKII, E. A. Smith. Ancilla alcockii, E. A. Smith, Ann. Mag. Nat. Hist. (7), Vol. XVIII, p. 172 (1906). Figs. 7, S.-VRSICOMYA BREVIS, H. A. Smith. Vesicomya brevis, E. A. Smith} op. tit, p. 261.

89 Zoology of the EU.M.S. fa.vestiga.tor.,!o II asca, Pla te //. 1,2. Pieurotoma (surcula.) this be, Smith, x Ancilla alcocmi, Smith, x lit Pleurotoma caxiiiata. Gray, x It Ve si cornya brevis. Smith, x li. A.C. Cbowdhaiy, del. eyoflndia Offices, Caloutta,Maroli,1908.

92 EXPLANATION OF PLATE. PLATE XXI-MOLLUSCA. la.~pontiothauma MINUS, E. A. Smith. Figs. 1, Pontiothauma minus, E. A. Smith, Ann. Mag. Nat. Hist. (7), Vol. XVIII, p. 159 (1906). Figs. 2, 2a. PONTIOTHAUMA PACEI, E. A. Smith. Pontiothauma pacei, E. A. Smith, op. cit., p Figs. 3, 3a PLEUROTOMA (SURCULA) NEREIS, E. A. Smith. Pleurotoma (Surcula) nereis, E. A. Smith, op. cit., p. i6r. Figs. 4, ^. PLEUROTOMA (SURCULA) AGALMA, E. A. Smith. Pleurotoma (Surcula) agalma, E. A. Smith, op. cit., p Figs. 5, 5a.-PLEUR0T0MA (BATHYTOMA) URANIA, E. A. Smith. Pleurotoma (Bathytoma) urania, E. A. Smith, op. cit., p Figs. 6, 6a. MANARIA THURSTONI, E. A. Smith. Manaria thurstoni, E, A. Smith, op. cit., p. 167.

93 ZOOLOGY OF THE R.I. M.S. INVESTIGATOR. Molltjsca, Plate XXI. la 2a Sa 4a 5a 6 Qa Survey of India Offices, Calcutta, , la. Pontiothauma minus, Smith, X 2. 2, 2a. Pontiothauma pacei, Smith. 3, 3a. Pleurotoma (Surcula) nereis, Smith, X 2. 4, 4«. Pleurotoma (Surcula) agalma, Smith, X 4. 5, 5a. Pleurotoma (Bathytoma) urania, Smith, X 3. 6, 6a. Manaria thurstoni, Smith, X 2.

95 44

96 EXPLANATION OF PLATE. PLATE XXII-MOLLUSCA. Figs. 1, la. NAT1CA SIMULANS, E. A. Smith. Natica simulans, E. A. Smith, Aim. Mag, Nat. Hist. (7), Vol. XVIII, p. 173 (1906). Figs. 2, Za. COLUMBELLA SUAVIS, E. A. Smith. Columbella suavis, E. A. Smith, op. cit., p Figs. 3, 3a. TROPHON (BOREOTROPHON) PLANI- SPINA, E. A. Smith. Trophon (Boreotrophon) planispina, E. A. Smith, op. cit., p. 16E

97 ZOOLOGY OF THE R.I.M.S. INVESTIGATOR. Mollusoa, Plate XXII. la 2a 3a Survey of India C ;s, Calcutta. ISOy. 1, 1«. Natica simulans, Smith, X 2. 2, 2a. Columbella suavis, Smith, X 12. 3, 3a. Trophon ( Boreotrophon ) planispina, Smith, X 2.

99 Mo

100 EXPLANATION OF PLATE. PLATE XXIII-MOLLUSCA. Figs. 2, la. NUCULA (ACILA) GRANULATA, E. A. Smith. Nucula (Acila) granulata, E. A. Smith, Ann. Mag Nat. Hist, (7), Vol. XVIII, p. 251(1906). Figs. 2, 2a.-~DENTALIUM CORNU-BOVIS, E. A Smith Dentalium cornu-bovis, E. A. Smith, op. at., p N.B. Figs. 2 and 2a with Symbiotic Actinian. Fig. 5. DENTALIUM SUBCURVATUM, E. A. Smith. Dentalium subcurvatum, E. A. Smith, op. cit., p Figs. 4, 4a.-LEPID0PLEURUS ANDAMANICUS, E. A. Smith. Lepidopleurus andamanicus, E. A. Smith, op. cit., p. 251.»

101 ZOOLOGY OF THE R.I. M.S. INVESTIGATOR. Mollusca, Plate XXIII. la 2 2a 4a Survey of India Offices, Calcutta, 1, la. Nucula (Acila) graimlata, Smith, X 4. 2, 2a. Dentalium conm-bovis, Smith, X 1^. 3. Dentalium subcurvatum, Smith, x 1^. 4, 4a. Lepidopleurus andamanicus, Smith, X 5.

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At the end of each part are summary questions. The summary questions are to help you put together what you learned in the preceding chapters.

At the end of each part are summary questions. The summary questions are to help you put together what you learned in the preceding chapters. Study Guide The following questions are to help you think about the material you learned in each of the lessons. They are organized to follow the outline in the textbook Summary of Christian Doctrine by