42 Moll. 
VII. MOLLUSCA. 
glia-cells in Helix ; Smidt (534).—On the subradular organ in Acmm 
testudinalis ; Willcox (656). 
Coelom :—Cerebral cavities of Pulmonata ; Pelseneer (420).—On the 
coelom in Acmcea testudinalis ; Willcox (656). 
Connective tissue:—Cells of Gastropoda; Paravicini (407).—Of Ostrcea-, 
Pekelharing (416). 
Symmetry:—On the origin of the form of the body in the Gastropoda ; 
Thiele (593).—Development of the form of the shell; Thiele (594). 
2. Physiology. 
On the physiology of the perioesophageal ganglion in Aplysia limacim ; 
Bottazzi (66).—Osmotic properties of salivary glands in Octopus ; Bot- 
tazzi & Enriques (67).—Excitability of nerves and muscles in Eledcme ; 
Capobianco (87).—Pigment of Nudibranchs ; Cockerell, Nature lxv, 
pp. 79 & 80.—Copper in Mollusca ; Dubois (166). — Functions of the 
digestive gland ; Enriques (178).—The physiology of locomotion in 
Aplysia limacina ; Jordan (277).—Beflex action in Invertebrates ; Men¬ 
delssohn (364).—Reaction to light of Littorina ; Mitsukuri (369).— 
Influence of temperature variation on molluscan larvae ; Pelseneer (417). 
—Mechanism of respiration in Pelecypoda ; Stenta (560).—Physiology of 
the heart of Aplysia; Straub (570).—Circulation in Anodonta ; Willem 
& Minne (657). 
3. Development (Embryology and Life-History). 
Development of Nucula and Yoldia ; Drew (165).—Development of 
Opisthobranchiata; Guiart (226).—Life history of Alya arenaria; Kellogg 
(282).—Development of Dreissensiapolymorpha ; Meisenheimer (354, 356). 
—Development of Cyclas ; Meisenheimer (355, 357).— Physa fontinalis ; 
WlERZEJSKI (654). 
Fry of Limncea stagnalis ; Nelson, Naturalist 1901, p. 355.—Spawn of 
Trochus ; Robert (478).—Spawning of Mytilus edulis ; Scott (507). 
On the artificial development of the unfertilized ova of Dentalium 
emtalis ; Ariola (20).—On the individuality of the germ nuclei during the 
cleavage of the egg of Crepidula ; Conklin (120).—Development of the 
centrosome and sphere in the maturation, fertilization, and cleavage of 
Crepidula ; Conklin (119).—Maturation, fertilization and segmentation in 
Unio ; Lillie (319). — Segmentation in Trochus ; Robert (479). — The 
centrosome in the maturation and fertilization of Bulla \Haminea\ soli- 
taria ; Smallwood (533).— Trigonia , growth stages in shell; Hall (230). 
—Development of the radula in Cephalopoda ; Rottmann (485).—Larval 
coil of Baculites ; Smith (541).—Development of shell; Thiele (594). 
Duration of life in Helix pomatia; Cole, Essex Natural, xi, p. 146.— 
Effect of variation in temperature on larval molluscs ; Pelseneer (417). 
4. Ethology (Habits, Relation to Environment, &c.) 
Duration of life in Helix pomatia ; Cole, Essex Natural, xi, p. 146.— 
Colouration of Nudibranchiata ; Cockerell, Nature lxv, pp. 79 & 80.— 
Bite of Conus is poisonous ; Cornet, Nature lxv, p. 198.—Notes on 
habits of Nucula and Yoldia , N. delphinodonta forms a marsupium on 
the outside of its shell; Drew (165).—Pearls are formed in Mytilus 
by the encysting of Distomum ; Dubois (168).—Hibernation in Mollusca ; 
Dubois (167).—Commensalism of Eunice and Ostrea ; Gravier (212).— 
