GASTROPODA (pECTINIBRANCHIA) . 
Moll 47 
Lartetia (Bourg., 1869) = Micromelania (Brusina) = Goniochilus 
(Sandberger, 1870). One living species, L. hourguignati (Paladilhe), 
exists in Southern France, and there are perhaps others in or near the 
Caspian Sea; it seems to be nearly allied to Baicatia (Martens), and 
both belong perhaps rather to the Melaniidce. Sandberger & Clessin, 
Mai. Bl. XXV. p. 102, & Nachr. mal. Ges. 1878, pp. 125-127. 
Homalogyra atomus (Phil.) = STcenea nitidissima (Forb. & Hanl.). 
Shell nautiliform, operculum circular, horny ; radula quite peculiar, 
narrow, with three rows of plates, the median strong, with a large tooth 
reclined backwards, the marginals thin, flat, transverse. Sars, Moll. arte. 
Norveg. p. 215, pi. xxii. fig. 21 ; radula, pi. viii. fig. 1. The author estab- 
lishes for it a new sub-order of the Gastropods, Prionoglossa ; I c. 
p. 214. 
PALUDINIDiE. 
Paludina heliciformis (Frauenfeld); Anderson, Zool . Researches during 
the Yunnan Exp., p. 892, pi. Ixxx. fig. 1. 
Margarya melanioides (Nevill, 1877) ; id. 1. c. p. 891, pl. Ixxx. fig. 5, 
Lake Tali, Yunnan. 
Bithynia tentaculata, var. hottnica (Anderson in litt.) ; Clessin, Mal. Bl. 
XXV. p. 71, Northern part of the Baltic Sea. ' 
Bithynia turrita (Blanford, 1869) ; Nevill, in Anderson’s Zool. Re- 
searches during the Yunnan Exp., p. 890, pl. Ixxx. fig. 4, Upper Burma. 
VaLVAT1DA5. 
Valvata stoliezkana, sp. n., Nevill, Moll. Yark. Exp. p. 12, figs. 34-36, 
Yarkand. 
Ampullariidj]. 
Note on air-breathing, by Semper, supra, p. 11. 
Lanistes ciliatus, sp. n., Martens, MB. Ak. Berl. 1878, p. 296, pl. ii. 
figs. 8-10, Finboni, coast of Zanzibar. 
VeRMETIDJ5. 
Vermetus gigas (Bivona) : simple internal septa ; Owen, P. Z. S. 1878, 
p. 966, woodcut. 
Ca^.CIDA'J. 
Ccecum ohsoletum (Carp.) found on the coast of Algeria ; Monterosato, 
J. de Conch, xxvi. p. 315. 
Capulidj;. 
Filidiiim radiatum (M. Sars) ; G. 0. Sars, Moll. arct. Norveg. p. 144, 
pl. viii. fig. 6 ; radu'a, pl, v. fig. 1. 
