XVI CONTENTS. 



CHAPTER V. 



Supple MEN TAEY Notes on the Mollusc a. 



Cephalopoda. — Development ; Hectocotylus ; lingual 

 dentition ; additional genera ; Helicerus, Discosorus, 

 Apioceras 446 



Gasteropoda. — Lingual dentition ; figures of tlie princi- 

 pal types ; prehensile collar of animal-feeders ; mode of 

 examining and preparing teeth as microscopic objects... 450 



ProsohrancJiiata. — Dibapbus, Rhizochilus, Borsonia, Pacby- 

 batliron, Monoptigma, Yicarya, liolopella, Scoliostoma, 

 Paludomus, Petaloconcbus, Discobelix, Platystoma, Pbi- 

 lippia, Paludestrina, Yitrinella, Scissurella (animal), Ca- 

 tantostoma, Eapbistoma, Holopea, Brownia, Calcarella, 

 Eecluzia, Patella (habits of) 461 



Pulmonifera, — Tanystoma, Pfeifferia, Spiraxis, Janella, 

 Testacella, Pianorbula, Gundlachia, Adamsiella, Opistho- 

 porus 464 



OpistJioh'ancJiiata. — Stylochilus, Chiorsera, Rhodope ...... 465 



Brachiopoda. — Observations on living species; Suessia, 

 Zellania, Anoplotheca, Meganteris 465 



Conchieera. — Development ; Ostreidse ; Dimya, Placuna, 

 Streblopteria, Hoplomytilus, Limopsis, Yoldia, MiiUeria ; 

 Hippuritidte ; Tridacna, Diplodonta, Scintilla, Astarte, 

 Crassatella, Gouldia, Cypricardia, Goniophora, Redonia, 

 Verticordia, Sowerbya, Psammobia, Glycimeris, Eibeiria, 

 Scaldia, Pauopaea, Isoleda, Auomianella, Crenella 467 



Abbreviations of Authors' names 474 



Index of Genera and Technical Terms 475 



Errata and Addenda. — Alaria, Amberlya, Anaulus, Bra- 

 chytrema, Ceritella, Coccoteuthis, Corbicella, Crossosstoma, 

 Deslongchampsia, Diastoma,Euspira, Q,uenstedtia,Ee3ania 484 



