BIOLOGY. 31 



cassis; Stutchbury (502). — Anatomy of Limncea involuta; Goodsir in 

 Thompson (509). 



Scaphopoda : — Animal of Dentalmm ; Clark (186). 



Pelecypoda : — Animal of Kdlia rtibra; Alder (50): Clark (182): 

 Alder (52): Clark (183): Alder (53): Clark (184). — Animal of Monta- 

 cnta fcrruginosa; Alder (55). — Anatomy of PhoIudid(e; Clark (191). — 

 Animal of Lepton ; Clark (203). — Anatomy of Pelecypods ; Garner (245). 

 — Animal of Modiolus discrepans ; Gray, ii, p. 480. — Animal of Cyclina 

 sinensis; Gray (288). — Knuiomy o^ Chamostrea alhida; Hancock (315). — 

 Anntomj of Mi/oe/iama ano'inioides ; Hancock (316). — Animal of Limopsis 

 aurita ; Jeffreys (365). — Animal of Galeomma ; Philippi (459). — Anatomy 

 of Lucina and Corbis; Valenciennes (528).--Aninials of Glycimeris, 

 Psammobia, Tridacna, and Vi/pricardia ; Woodward (550). — Animals of 

 several genera of Pelecypods; Woodward (551). 



Polyplacophora : — Animal of British Chitonidce ; Clark (207). 



2. Shell and Integument. 



Reversed Limnrvji; Bean (83). — Operculum of some Cyclostomacea ; 

 Benson (112). — Monstrosity of Anodon; Bloxam, Mag. Nat. Hist, vii, 

 p. 160.— Sti-ucture of the shell; Carpenter (173). — Structure of the shell; 

 Gray (250). — PhyJlidia has the mantle strengthened by spicula ; Gray, 

 xvii, p. 70. — The operculum represents the second valve of a Pelecypod ; 

 Gray (262). — Repair and reproduction of operculum ; Gray (285). — 

 Abnormal operculum in Polydonta; Gray (296). — Monstrosity o{ Haliotis; 

 Gray (297). — Development of shell of Aspergillum ; Gray (300). — Removal 

 of portions of shell by Molluscs; Hancock (311). — Structure of Belem- 

 rtites and Bdemnoteuthis ; Mantell (436). — Structure of shell in Spondyhis ; 

 Owen (451). — Construction of shell in A\(utilus; Reeve (469). — Dissolu- 

 tion of shell in Cypnea; Reeve (470). 



8. Digestive System. 



Radula of Camptonyx, n. gen. ; Benson (126). — Radula of Limax; Gray 

 (301). — Radula of Runcina haneocki; Gray (286). — Radula of Peroiiia and 

 Otina; Gray (281). — Radula of Pneumonobranchiate Molluscs; Gray 

 (278). — Radula of Mitra; Gray (274). — Radula of British Pulmonifera ; 

 Thomson (525). 



4. Circulatory System. 



Note on branchia} of Lottia virginea; Alder (47). — Branchial currents 

 in Pelecypods; Alder (54). — Gill currents in Mya -And. PJwlas ; Alder & 

 Hancock (70). — Branchial currents in Pelecypoda; Clark (210). — Blood 

 of Nudibranchs ; Forbes, vi, p. 317. —Siphons of Cardium exiguum ; 

 GossE (247). — Cii-culatory System in Pelecypoda; Rolleston & Robert- 

 son (482). — Branchial currents in Pelecypoda; Williams (541); Alder 

 (58). 



5. Respiratory System. 



Respiration in Gastropods; Williams (541). 



6. Excretory and Secretory Systems. 



Byssal-threads secreted by Cardium exiguum ; GossE (247). — Saxicava 

 spinning a byssus ; West (539): Robertson (481). 



