Moll . 1 
VII. MOLLUSCA. 
BY 
B. B. Woodward, F.L.S., F.Gr.S., &c. 
CONTENTS. 
Page 
Introduction 1 
I. Titles 3 
II. Biology. 
Anatomy, Physiology, &c . . 21 
Distribution. 
Geographical. 
Non-marine 24 
Marine 29 
Geological 32 
III. Systematic. 
Cephalopoda 35 
Dibranchiata. 
Octopoda 36 
Decapoda 36 
Ammonea 37 
Tetrabranchiata 37 
G astropoda 38 
Pulmonata 38 
Stylommatophora .... 38 
Basommatophora .... 44 
Page 
Opisthobranchiata 45 
Nudibranchiata 45 
Tectibranchiata (includ- 
ing Pteropoda) .... 45 
Prosobranchiata 46 
Pectinibranchiata(includ- 
ing Nucleobranchiata) 46 
Scutibranchiata 53 
Scaphopoda 55 
Pelecypoda 55 
Septibranchiata 55 
Eulamellibranchiata ... 55 
Pseudolamellibranchiata . 57 
Filibranchiata 58 
Protobranchiata 58 
Amphineura 58 
Aplacophora 59 
Polyplacophora 59 
INTRODUCTION. 
A considerable falling off in the amount of Molluscan work done 
during 1896, as contrasted with that of the last few years, is observable. 
There have been just 100 fewer papers, judging by the number of titles, 
published in the year than appeared in 1895 ; but the diminution is 
fortunately in quantity rather than in quality. 
Tryon’s Manual (355, 356), under the able conduct of Mr. Pilsbry, is 
still the most important systematic work in course of publication. The 
“ First Series,” or Marine Univalves, is now complete as planned by its 
founder, but a supplemental volume dealing with some families not here- 
tofore considered is promised. In the “Second Series,” or Terrestrial 
Molluscs, the Bulimi and Bulimuli are still being dealt with. 
The Molluscan portion of Bronn’s “Klassen und Ordnungen der Thier- 
Reichs,” under the editorship of Dr. Simroth (38), proceeds with Teutonic 
1896. [VOL. XXXTII.j D 1 
