48 Moll. 
MOLLUSCA. 
by examination of the radula, which, however, is not yet known even in 
the European typical species. — Rec.] 
Diana gredleri , sp. n., Neumayr, JB. Mineral, ii. p. 24, Lake Talifu, 
Prov. Yunnan, China. 
Tryonia protea (Gould). Two varieties, one smooth and the other 
finely cancellated, at Indio, in the Colorado Desert ; Stearns, Am. Nat. 
xvii. p. 1015, woodcut. 
Tryonia [?] sp., from Cooper’s Creek, Central Australia, Saenger, Am. 
Nat. xvii. p. 1184, woodcut. [Perhaps a Melania. — Rec.J 
Lithoglyphus naticoides (Fer.), new appearance in Northern Germany, 
vide supra , p. 36. 
Lithoglyphus pannonicus (Frauenf.) belongs to Bithynella , according 
to the open perforation of the shell and the particularities of the radula ; 
Hazay, Mai. Bl. (2) vi. pp. 98 & 99, pi. vii. fig. 4. Radula of L. nati- 
coides , ibid. fig. 5. 
Paludinidje. 
P. Fagot’s paper (vide supra , p. 4) has not been seen by the Recorder. 
Paludina. Some critical notes concerning Bourguignat’s synonymy by 
Mme. Paulucci, Bull. Soc. mal. Ital. ix. pp. 8-10. 
Paludina fasciata (Mull.) from the banks of the Niemen, Minsk, fully 
described, and its differences from P. vera (Frauenf.) [lister i (Forbes)] 
pointed out ; the radula of the embryonal shells has a greater and less 
determined number of denticulations on the edge of the single teeth : 
Dybowski, Mal. Bl. (2) vi. pp. 71-87, pi. iii. The radula of the same two 
species, and of P. hungarica , comparatively described by Hazay, l. c. 
pp. 99 & 100, pi. vii. figs. 1 & 2. 
Paludina vivipara (L.) var. fasciata (Pickering) = unicolor (Jeffr.), 
British localities ; Taylor, J. of Conch, iv. p. 127. 
Paludina decipiens and paulucciana, spp. nn., Tapparone-Canefri, 
Ann. Mus. Genov, xix. pp. 20 & 21, pi. i. figs. 1-4, Fly River, Southern 
New Guinea. 
Paludina sp. from Cooper’s Creek, Central Australia ; Saenger, Am. 
Nat. xvii. pp. 1184, woodcut. 
Vivipara margeriana (Nevill) = Margaria melanoides (Nevill). Varie- 
ties, with and without spiral keels; Neumayr, JB. Mineral. 1883, ii. 
p. 25, woodcut, Lake of Talifu, Yunnan. 
Campeloma (Rafinesque, 1819) is to be re-established as a genus or 
subgenus of Paludinidce } wrongly called Melantho by Biuney and subse- 
quent authors. Rafinesque’s type was a sinistral specimen of Paludina 
ponderosa (Say), from the Ohio. Melantho is founded by its author, 
Bowdich, 1822, on a marine fossil from the Paris Basin. The geographi- 
cal distribution of the species of this genus in North America is sketched 
out. R. Ellsworth Call, Am. Nat. xvii. pp. 603-608. 
Bythinia tumida , sp. n., Westerlund, Nachr. mal. Ges. 1883, p. 166, 
Ceylon. 
Digyreidum , g. n. Operculum spiral in the centre, concentrical in the 
periphery. D. sennaaricum = Paludina sennaariensis (Parr., Kiist.) 
