INDEX 
Assimineide, 241. 
assiniensis, Lanistes, 186. 
Meladomus libycus, 186. 
astartina, Corbicula, 339, 345. 
Cyrena, 339. 
astilba, Limnza, 108. 
Ataz, 532. 
ater, Melampus, 100. 
Athanas, 2, 7, 8, 19, 23, 42: 
Atilax, 4. 
atlantica, Dromia,. 20. 
Parapenxopsis, 10. 
Parapeneopsis, 7, 8, 10, 67. Pl. I, 
fig. 2. 
Atopocochlis, 482. 
Atoxon, 496, 503, 509. 
atra, Neritina, 158. 
atrata, Silpha, 471. 
Atyide, 11. 
aubryi, Leptopelis, 473. 
audoini, Corbicula, 339. 
aurea, Physa, 521. 
Auricula, 99, 100, 101, 102, 103, 104, 105. 
auricularia, Helix, 108. 
LTimnea, 533. 
Lymnea, 108, 110. 
Auriculastra, 104. 
auriculatus, Radix, 108. 
Auriculide, 69, 97, 98, 99. 
auriculifera, Vernonia, 508. 
aurifera, Assimania, 242. 
Syncera, 242. 
auriformis, Mesafricarion, 509, 513. 
auris-felis, Bulamus, 105. 
aurita, Clavigerina, 267. 
Melania, 267. 
Nerita, 266, 267. 
Pachymelania, 267, 565, 566, 568. 
Pl. XXIII, figs. 1-1c, and 2-29. 
auritus, Claviger, 267. 
aurocincta, Cleopatra, 291. 
australis, Gabbia, 215. 
Austrobalea, 484, 485. 
avakubiensis, Planorbis, 74, 125, 127 
(Fig. 9), 568. 
azaouadensis, Limnexa africana var., 109. 
Lymnea caillaudi var., 109. — 
azureus, Graucalus, 478. 
607 
bacillum, Streptostele, 492. 
backoy1, Unio, 379. 
baikii, Aspatharia, 420. 
Spatha, 420. 
Baizea, 70, 301, 302, 308, 312, 589, 590. 
baizeana, Joubertia, 324, 590. 
Paramelania, 324. 
bakeri, Parreysia, 389, 392, 576. PI. 
XXXI, figs. 5-6. 
Unio, 392. 
bakoyi, Nodularia, 379. 
Unio, 379. 
balanoidea, Ampullaria, 74, 171. 
balanoideus, Afrapomus, 171, 177. 
Balanus, 23. 
Balea, 485, 531. 
balfouri, Paludestrina, 221. 
Hydrobia, 221. 
balteata, Melania, 267. 
Balwantia, 389. 
bambuseti, Vitrina, 515. 
bananaénsis, Dreissensia, 457. 
bandeirana, Achatina, 499. 
bangalorum, Aspatharia wissmanni, 
75, 423, 424, 425 (Fig. 93), 558, 
569. 
bangoranensis, Nodularia, 379. 
Unio, 379. 
barrakporensis, Kaliella, 509, 513, 517. 
Bartelettia, 447. 
Bartlettia, 447. 
bartonianus, Lanistes, 184. 
Bartramia, 531. 
basisuleatus, Planorbis choanomphalus 
var. 117;:120;577. 
Basommatophora, 69, 97, 98, 99. 
bastardi, Alpheus bouviert var., 21. 
Crangon, 21. 
Batanalia, 317. 
batesi, Geocichla princei, 478. 
Bathanalia, 70, 299, 300, 301, 316, 317, 
589, 590, 591. 
Bathyanalia, 317. 
Bathynalia, 317. 
bathytoma, Curvella, 512. 
baumanni, Spatha, 422. 
Succinea, 516, 597. 
bavayi, Melania, 264. 
