1\IM<\ oi' GENERA. 



51 



Planazia 8 c 



Planorbis 17 c 



Pleurotoinicla; 2 c-2 i. 



Plicatula 25 h 



Proserpina 10 c 



Pterocera 9 g 



Pteropoda Id 



Puncturella He 



Pupa 16 G 



Purpura 3 G-3 n 



Pyramidellidae 6 g 



Ranella (i a-G is 



Ringicula 6 a 



RisBoidse 8 c 



Rocellaria 20 D 



Rostellaria 9 H 



Rotella 10 c 



Saxicava 20 d 



Scalaria 6 p 



Scaphander 12 e 



Scintilla 20 g 



Scutus 11 D 



Semele 19 a 



Sepia 1 c 



Septifer 23 e 



Siliquaria '.I e 



Siphonaria 17 d 



Sistrum 4 A 



Solarium (in 



Solemya 20 G 



Solenidoe 20 d-20 f 



Sphaeriuni 18 e 



Spirula 1 c 



Spondylus 24 h-25 b 



Stilifer On 



Stomatella 11 b 



Streptaxis... 12 g 



Strombus 9 e-9 g 



Strophia 16 n 



Strufchiolaria 7 s 



Succiuea 17 a 



SuDetta 17 B 



Sycotypus 2 r 



a 18 b 



Tellinidse 18 e-19 b 



bellum ;• a 



Terebridaj 2 A-2 c 



Teredo 20 i 



^ 11a 12 G 



Thracia 19 P 



Trichotropia 7 b 



Tridacna 20 \-20 n 



Trigouia 23 a 



Triton 6 b-G d 



Trochidaj 10 r-11 b 



Trophon 3 a 



Truncatella 8 u 



Tugonia 20 B 



Turbinellidse 5 b-5 c 



Turbinidse 10 c-10 b 



Turritella 8 u-9 A 



Umbrella 1 1' r 



Ungulina 2J k 



Unionicke 21 E-22 G 



Yalvata 9d 



Vanicoro 9 d 



Velutina ii » 



Venerupis 18 c 



Venus 17 n-18 A 



Vermetidae 9 d— 9 a 



\"iirina 12 ii 



Volutidas 5 c— 5 p 



Vulsella 24 ii 



Xenopbora 9b 



Yoklia 23 ii 



