646 INDEX 
Rachis, 496, 499, 500, 507, 518. 
radiata, Corbicula, 75, 339, 340, 341 
(Fig. 71), 342 (Fig. 72), 343, 344, 
345, 541, 569, 576, 577, 578, 597. 
Cyrena, 341, 343. 
Galatea, 368. 
Galathea, 359, 368, 369. 
Nodularia, 385. 
Potamophila, 362, 363. 
radiolata, Auriculastra, 104. 
radiolatus, Melampus, 104. 
radiota, Nodularia, 385. 
Radix, 106, 108. 
radula, Murex, 246. 
Potamides fuscatus var., 246, 247. 
raffrayi, Limnea, 109. 
LIimnexa africana var., 109. 
Lymnea caillaudi var., 109. 
Rallus, 535. 
Rana, 91, 473, 474, 534. 
randabelt, Brazzeza, 427. 
Bulinus, 137, 139, 587. 
Celatura, 385, 408, 587. 
Cameronia, 442. 
Edgaria nassa f., 331. 
Isidora, 139. 
Nodularia, 408. 
Paramelania, 331. 
Physa, 139. 
Unio, 408. 
Randabelia, 71, 249, 302, 323, 327, 590. 
rangu, Melania, 267. 
rapax, Plecotrema, 103. 
Raphia, 508, 562. 
ratidota, Nodularia, 385. 
ratidotus, Unio, 385. 
raymondi, Ampullaria, 182. 
Cleopatra, 291. 
Raymondia, 312. 
recki, Lanistes, 200. 
reclinata, Phoenix, 542. 
reclusa, Venus, 368, 369. 
recticosta, Melania, 254. 
Melanoides, 254, 262. 
rectilinearis, Unio, 378. 
rectistrigata, Limicolaria, 516. 
Rectiviviparus, 74, 209. 
regis, Parreysia, 75, 385, 389, 577. Pl. 
XX XI, figs. 12-12b. 
regius, Panulirus, 7, 8, 42, 43 (Fig. 67). 
regularis, Bufo, 473. 
Physa tchadiensis var., 137. 
reichenowi, Sarothrura elegans, 476. 
rekwaénsis, Physopsis, 144. 
Remipes, 57. 
Renatus, 400. 
renea, Nodularia, 385. 
renei, Aspatharia, 422. 
Spatha, 422. 
Reneus, 379, 381, 385, 400. 
reneus, Reneus, 385, 400. 
retirugis, Cerastus, 509, 513. 
revoili, Ampullaria, 176. 
Inmnea, 110. 
Pila, 176. 
Valvata, 243. 
revoiliana, Cameronia, 442. 
reymondi, Bridouxia, 314. 
Edgaria, 332, 590. 
Edgaria bourguignati f., 332. 
Hautteceuria, 304. 
Paramelania, 332. 
Spekia, 316. 
Tanganyicia, 304. 
Tanganyikia, 304. 
Reymondia, 70, 99, 249, 299, 300, 301, 
309, 312, 589, 590. 
Rhabditis, 472. 
Rhinomelania, 248, 250, 288, 546, 600. 
Rhipidoglossa, 69, 97, 156. 
Rhizophora, 45, 554, 562, 563, 566. 
Rhodeus, 531. 
rhodopyga, Cyrenoida, 375. 
Cyrenoidea, 375. 
rhynchoidea, Chambardia, 413. 
rhynchonella, Grandidieria, 398, 588. 
rhynchota, Mutelina xgyptiaca var., 428. 
Rhytidide, 484, 485, 486. 
richardi, Cleopatra bulimoides var., 291. 
riisel, Succinea, 531. 
ringeri, Paragonimus, 91, 95. 
Rissoa, 336. 
Rissoaceze, 227. 
Rissoidee, 213. 
rivicola, Cyclas, 347. 
