CONTENTS. 



ILLUSTRATIONS IN THE TEXT. 



Shell-Lobes in the Zonitidse, fig. i 



— — — fig. 2 ... 



— — — fig- 3 ••■ 

 Genitalia in the Zonitidje, fig. 4 



— — — fig. 5 

 Buliminus (Ceiastus) featheri n.sp. 



— — • boolhi n.sp. 

 Ennea oiestias n.sp. 



Buliminus (Zebrina) libbahensis n.sp. 

 Abnormal Radula of Vilrea lucida Diap. 

 Distorted Anodonta cygnrea L. 

 Pairing of Arion ater L. 

 Double-mouthed Clausilia bidentala ... 

 Latirus ernesti Melvill 



— (Peristernia) hesterte n.sp. 



— — jeaniffi n.sp. 



— — photiformis n.sp 



— praestantior Melvill ... 



— (Peristernia) sowerbyi Melvill 

 Dart of Helix undata Lowe .. 

 Track of Limax flavus L. 



117: 



page 

 34 

 36 

 37 

 .. 38 

 40 



54 



55 



55 



.. 56 



.. 76 



■■ 97, 98 



iiS, 119 



161 



169 



170 



171 



173 

 174 

 176 

 210 

 • • 321 



SPECIES AND VARIETIES NEW TO SCIENCE DESCRIBED 

 IN THIS VOLUME. 



Buliminus (Cerastus) featheri Tomlin... ... ... ... ... 54 



— — boothi Tomlin ... ... ... ... ... 54 



Ennea orestias Tomlin ... ... ... ... ... 55 



Buliminus (Zebrina) libbahensis Tomlin .. ... ... ... 56 



Pecten islandicus Miill. var. scotica Simpson .. ... ... ... iio 



Venus fasciata da C. var. pallida Simpson .. ... ... ... iii 



Clausilia cravenensis Taylor var. albina Dean ... ... ... 146 



Latirus (Peristernia) hesterie Melvill ... ... ... ... 170 



— — jeania; Melvill ... ... ... ... ... 171 



— — liratulus Melvill (new name for Peristernia lirata Pease) 171 



— — photiformis Melvill ... ... ... ... 173 



Cerithiopsis barleei Jeff. var. interrupta Marshall ... ... ... 1 89 



Fusus propinquus Alder var. kevis Marshall ... ... ... .. 225 



— • — — var. howsei Marshall ... ... ... 226 



Fusus consimilis Marshall ... ... ... ... ... ... 229 



Donax variegatus Gmel. var. aurea Woodcock... ... ... ... 245 



Clathurella anceps Eichw. var. soluta Marshall ... ... ... 297 



— linearis Mont. var. minor Marshall ... ... ... 299 



Pleurotoma brachystoma Phil. var. alba Marshall ... ... .. 303 



Marginella dautzenbergi Tomlin and Shackleford ... ... ... 319 



— • chalmersi Tomlin and Shackleford ... ... ... ... 320 



Utriculus tomlinianus Marshall ... ... ... ... ... 334 



Helicella heripensis Mab. var. lutescens Kendall and var. albicans Kendall 345 



