652 
Parreysia, 386, 390, 577. PI. 
XX XI, figs.’7-7b. 
Pila, 176, 182, 183, 576, 578. 
Pseudoglessula, 492, 493, 517. 
Spatha, 415, 419. 
Spherium, 348, 349 (Fig. 75), 569, 
576, 578. 
Unio, 390. | 
sturanyi, Eupera, 355, 358, 453, 569. 
Grandidieria burtoni var., 396, 588. 
Spherium, 354, 358. 
Unio burtonia var., 396. 
Sturnus, 474. 
subeequilatera, Aspatharia, 422. 
subamygdalinus, Unio, 386. 
subangulata, Subulina, 493. 
subaurita, Melania, 268. 
subcapense, Spherium, 348. 
subcarinata, Ampullaria, 187, 193. 
subcarinatus, Lanistes, 187, 568. 
subcompressa, Unio hauttecceuri var., 
382. 
subconica, Limicolaria, 499. 
subcylindrica, Helix, 241. 
subdiaphana, Mutela, 428, 430. 
subequilatera, Spatha, 422. 
subfuscidula, Pseudoglessula, 476, 492, 
503. | 
subglobosa, Congeria, 455. 
subimperforata, Paludina unicolor var., 
206. 
subimperforatus, Viviparus unicolor var., 
206. | 
sublimbatum, Ptychotrema, 509. 
submutica, Cleopatra grandidieri var., 
290. 
subnigra, Nodularia, 408. 
Unio, 401, 408. 
subopaca, Physa, 147. 
subreniformis, Anodon, 415. 
Aspatharia, 415. 
Spatha, 415. 
subsalinarum, Planorbis, 117. 
subspinulosa, Melania, 254. 
subsucculentus, Helixarion, 510. 
subsudanicus, Planorbis sudanicus, var. 
118. 
subtriangularis, Burtonia, 447. 
INDEX 
Pseudospatha, 444, 447, 588. 
subtruncata, Corbicula, 340. 
subtruncatula, Corbicula, 340, 345. 
Limnea, 107. | 
Lymnea, 107. 
subturrita, Vivipara rubicunda var., 206. 
subturritus, Viviparus rubicundus var., 
206. 
subula, Auricula, 104. 
Auriculastra, 104. 
Subulina, 460, 474, 476, 490, 492, 493, 
499, 509, 517, 601, 602. 
Subuliniscus, 484, 507, 509, 512. . 
Subulona, 602. 
subvaricosa, Varicostele, 509, 510. 
subviridis, Venus, 368. 
Succinea, 88, 106, 214, 215, 486, 499, 
516, 531, 578, 597, 602. 
Succineide, 491. 
succinoides, Bulinus, 137. 
Inmnexus, 108. 
Lymnea caillaudi var., 108. 
Physa, 137. 
sudanicensis, Planorbis, 122. 
sudanicus, Planorbis, 938, 95,118, 119, 
121, 122 (Fig. 7), 123, 568, 576, 
577, 587. 
Sulcospira, 273. 
sulcospira, Melania, 273. 
sumatrana, Spongilla, 453. 
sumatrensis, Pila ampullacea, 173. 
superba, Potadoma, 75, 275, 276, 
278, 285, 286, 287, 569. Pl. 
XXV, figs. 3-e. 
sylvatica, Achatina, 494. 
Syncera, 70, 226, 242, 565, 568. 
Synceride, 70, 97, 99, 225, 241. 
syngenes, Bulinus, 137. 
Physa, 187. 
Syrnolopsidse, 70, 97, 98, 226, 590, 
591, 592. 
Syrnolopsis, 70, 75, 227, 228, 235, 
589, 590, 591, 595. 
Syrnolopsis, 239. 
tabula, Anodon, 422. 
Aspatharia, 422. 
tabulaia, Paramelania, 325. 
