[1904] 
Moll 1 
YIL MOLLUSCA. 
BY 
E. R. Sykes, B.A. 
Assisted by E. A. Smith, I.S.O. 
CONTENTS. 
Page 
Introduction 2 
I. Titles 4 
Obituary Notices, &c. . 36 
II. Biology. 
Anatomy, Physiology, &c. . 37 
Distribution. 
Geographical. 
Non-Marine 41 
Marine 48 
Geological 52 
III. Systematic. 
Cephalopoda 59 
Dibranchiata 60 
Ammonea 60 
Tetrabranchiata . . . . 61 
Gastropoda 61 
Pulmonata 61 
Stylommatophora. . . 61 
Basommatophora ... 70 
Page 
Opisthobranchiata ... 71 
Nudibranchiata ... 71 
Tectibranchiata (includ- 
ing Pteropoda) . . .72 
Nucleobranchiata ... 73 
Prosobranchiata .... 73 
Pectinibranchiata . . . 73 
Scutibranchiata ... 84 
Scaphopoda 86 
Pelecypoda 87 
Septibranchiata .... 87 
Eulamellibranchiata . . 87 
Pseudolamellibranchiata . 89 
Filibranchiata 90 
Protobranchiata . . . . 91 
Amphineura 91 
Aplacophora 91 
Polyplacophora .... 91 
D 1 
1904. [VOL. XL!.] 
