462 
ZOOLOGICAL LIT15RATUKE. 
Amniola confusa (Fraiienfeld), Moitessier, Hist, malac. du diSpart. de 
FHerault, pi. 1. figs. 15-17. 
Hydrohia steinii (Martens) and H. baltica (Nilss.) fully described and 
figured by Lindstrom^ Gotlands nutida Moll. pp. 28-30, pi. 3. figs. 2-9. 
. Hydrohia musaensis (Frauenfeld) found in Malta. Issel, Bullett. Malacol. 
Ital. i. p. 22. 
Hydrohia duveyrieri (Bourg. 1864) described and figured again from spe- 
cimens taken in a thermal spring in Djerid (south of the regency of Tunis) 
by Bourguignat, Hist, malacol. Tunis, p. 33, pi. 1. figs. 38-40. 
Hydrohia Uqndum and H. jnscium (Orb.), from freshwater streams in the 
province Bio Grande do Sul, H. australis (Orb.) in fresh and brackish 
water on the coast from Bio Janeiro to Montevideo, briefly described by 
Martens, Mai. Bliitt. xv. pp. 192 & 202, 203 j the median plate of the radula 
in the first with one, in the last with two or three basal teeth, Heynemann, 
ibid. p. 113. — H. antarctia, sp. n., Philippi, ibid. p. 224, Straits of Magellan, 
swimming in the sea. 
Belyrandia, g. n., Bourguignat, Catalogue des mollusques terrestres et flu- 
viatiles recueillies en ^tat fossile dans les parties inferieures du diluvium des 
environs de Paris, 1868, pp. 13-15. This genus, characterized by variciform 
swellings of the whorls, which are hollow inside, is established for fossil 
species, but must include also Cyclostoma (jihhiim (Drap.) and some other 
recent species, as is remarked by INI. Paludilho, Bevuo et Mag. de Zool. 1860, 
p. 284. 
Bythinella ohtiisa (Lea), Amnicola sayana (Anth.), orhiculata (Lea), and 
Pomatiopsis lustrica (Say). Lewis does not agree with Binney as regards 
the determination and systematic place of these species j he refers sayana to 
Pomatiopsis, lustrica to Amnicola^ and thinks orhicidata to be z=.porata (Say), 
Am. Journ. Conch, iv. pp. 60-62. 
Paludinid^e. 
J. Lewis lias publislied critical notes on Binney^s arrange- 
ment of North- American Paludince (see Zool. Record, iy. p. 544); 
they refer chiefly to the subgenus Melantho, Am. Journ. Conch. iv. 
pp. 57-60, and do not admit of being abstracted. He also states 
that Melantho gibba (Currier) is a local modification of rufa, 
treating of the specific characters in this subgenus generally, 
pp. 82-85. About two per cent, of the young of Melantho are 
reversed, pp. 133-136. 
Paludina decisa (Say) and P. viripara (L.). Lingual membranes by Hogg, 
Transact. Boy. Microscop. Soc. xvi. pi. 8. figs. 6 7. 
Paludina huUmoides (Olivier) found by Dr. Welwitsch in saline water of 
a streamlet at Dungo in Angola, on Ruppia maritima. Morelet, Moll. terr. 
et fluv. Voy. Welwitsch, p. 96. 
Bythinia. G. Lindstrom thinks that this genus must be removed from the 
Pallid inidcc and associated with Hydrohia in the Bissoidic on account of its 
lingual dentition, the situation of the generative organs, the ovoparity, and 
the power of suspending themselves by a mucous thread : he describes and 
figures the living animal of B. tentaculata (L.) and B. Icachii (Shepp.), as 
