Xll CONTENTS. 



B. Pteropoda. 



PAGE 



Grobben, C. — Morphology of Pteropods Part 2 194 



Pelseneeh, p. — Morphology of Spinous Sacs of Gymnosomatous Pteropoda Part 4 496 



Peck, J. I. — Anatomy and Histology of Cymhuliopsis calceola Part 6 734 



Pelseneeb, p. — Systematic Position of Desmopterus papilio „ 734 



y, G-astropoda. 



Kalide, G. — Eyes of Gastropods and of Pecten Parti 38 



Klotz, J. — Generative Apparatus of Lymnieus Part 2 195 



Saint-XiOUP, R. — Anatomy of Aplysia „ 195 



Geenacher, H. — The Heteropod Eye „ 196 



VoiGT, W. — Entocolax Ludwigii, Parasitic in a Holothurian „ 197 



UlicNY, J. — Mouth-parts of Ancylus fluviatilis and Velletia lacustris . . „ 197 



KoEHLEE, R. — Double Forms of Spermatozoa Part 3 371 



Garnault, p. — Fertilization in Helix aspersa and Arion empiricorum . . „ 372 



Brock, J. — Neurology of Prosobranchiata „ 372 



Robert, E. — Hermaphroditism of Aplysise „ 373 



Bbegh, R. — Genera of jEolidiidse „ 374 



Smith, E. A. — New Genus of Parasitic Mollusca „ 374 



BouTON, L. — Ventral Nervous Mass of Fissurella .. .. Part 4 496 



Perez, J. — Descent of Ova in Helix „ 497 



Schalfejepf, p. — Anatomy of Clione limacina „ 497 



Garnault, P. — Eeproduciive Organs of Valvata piscinalis „ 498 



Semon, R. — Secretion of Sulphuric Acid by Marine Gastropods Part 5 627 



Letellier, a. — Purple of Purpura lapillus „ 627 



Herdman, W. a., & J. A. Olubb — Nudibranchiata of Liverpool District „ 627 

 Behme, T. — Anatomy and Development of Renal Apparatus of Pulmonate 



Gastropods „ 628 



Mazzarelli, G. F. — Eeproductive Organs of Aplysise „ 628 



Dall, W. H. — Gastropoda and Scaphopoda of the West Indian Seas . . Part 6 735 



BaTESON, W. — Variations of Cardium edule „ 735 



Dubois, R. — Luminous Phenomena in Pholas dactylus „ 736 



Garstang, W. — Nudibranchiate Mollusca of Plymouth Sound „ 737 



FoL, H. — Microscopic Anatomy of Dentalium „ 737 



S. Laxaellibrancliiata. 



Dubois, R. — Influence of Light Part 1 39 



Macalpine, D. — Movements of Detached Gills „ 40 



M'Intosh, W. 0. — Development of My tilus edulis „ 40 



Rawitz, B. — Edge of Mantle of Acephala Part 2 198 



Galeazzi, R. — Nervous Elements of Adductor Muscles of Lamellibranchs ., „ 201 



Mobius, K, — Swelling of Foot of Solen pellucidus „ 201 



Thielb, J. — Abdominal Sensory Organs in Lamellibranchiata Part 3 374 



MeneGAUX, a. — Turgescence in Lamellibranchs 375 



Jackson, R. T. — Development of Oyster and Allied Genera „ 375 



Ryder, J. A. — Byssus of young of common Clain „ 375 



Fischer, K. — Distribution of Unio margaritifer 376 



Menegaux, a. — Morphology of Teredo Part 4 498 



Neumatr. M. — Origin of Unionidse 498 



M'Alpine, D. — Movements of Bivalve Mollusca Part 6 739 



Dall, W. H. & P. Pelseneer.— ^SrancAwfe Lamellibranchiata .. .. 740 



