50 Moll. 
MOLLUSCA. 
8. West African Region. 
Congo. 12 spp. nn. Gastropoda and Lamellibranchiaia described and 
figured by Morelet (268). 
Lowen' Congo. 9 Gastropoda (2 new) and 5 Lamellibranchiata (1 new) 
enumerated by Bcettger (32). In brackish water, Donax ( Chion ) rugosus , 
L., Purpura coronata, Link., and Litorina (Melanorhaphe) angulifera 
(Link.), and L. (Jf.) cingulifera , Dkr. Iu more salt water, Ostrea cornu- 
copice, Chem., var. guineensis , Dkr., and Mgtilus ( Aulacomya ) senegalensis , 
Link., var. charpentieri , Dkr. In fresher water, isara afra, sp. n., and 
Neritina ( Neritcea ) hessei , sp. n. 
Assinie. 4 new genera ( Adjua, Curvella , Moaria, Gulella) and several 
species for Assinie, specimens in Ecole des Mines, Paris ; Chaper (72). 
Gulella treichi , Unio essoensis, spp. nn., Chaper (73). List of species, 
2 spp. nn., 1 g. n., Tomostele ; Ancey (5). 
9. South African Region. 
Cape Colony. Helicopsis tabulce , Hydrobia caledonensis, and CWo 
vaalensis , spp. nn., Chaper (73). 
Delagoa Bay. Vaglnula maura , sp. n., Heynemann (175). 
10. Malagasy Region. 
Mauritius. 3 species of Vaginula (2 new) ; Semper (332). Melania 
tuberculata , 2 varr. nn. ; Nevill, (277) p. 246. 
Comoro Is. 20 species of Gastropoda (14 new) described by Morelet 
(269). Vaginula picta, V. grossa , spp. nn., Heynemann (175). 
Seychelles. Melania tuberculata , var. n., Nevill, (277) p. 241. Palu- 
domus ajanensis , var. n., fif. A c. p. 296. Vaginula bicolor, sp. n., Heyne¬ 
mann (175). 
III.—PAL^OTROPICAL ORIENTAL ZONE. 
12. Indian Region. 
Nevill (277) catalogues the genera Ampullaria to Paludomus of the 
Calcutta Museum, with many species and varieties. 1 new subgenus 
(Mainwaringia). Vaginula sp. n., Semper (332). 
Kashmir. Bythinia tentaculata, var. n., Nevill, (277) p. 39. 
Madras. Lyonsia morgani , sp. n., from saltish water of river ; Chaper, 
(72) p. 50. 
Andaman Is. Melania , 9 varr. nn. of different species ; Nevill, (277) 
pp. 228-281. 
Ceylon. Melania tuberculata, var. n., t. c. p. 243 ; M. rudis, var. n., t. c. 
p. 275. Paludomus microsculptci , sp. n., t. c. p. 297 ; P. erronea , sp. n., t.c. 
p. 300, and 2 varr. nn., p. 299. 
