440 
ZOOLOGICAL LITERATURE. 
land- and freshwater shells is rather small ; and few only are 
common to several islands_, as Stenogyra plicatella (Guppy) . In 
Dominica principally, hut probably also in the other islands, the 
greater part of the species are confined to the moist wooded 
inland mountains, where, for example, Amphibidima pai'daiina 
(Guppy) lives buried in the very thick moss of the trees in the 
high regions of the forests where the vegetation is always drip- 
ping with moisture.^^ The lists comprise 37 species from Tri- 
nidad, 19 from Dominica, 14 from Grenada, 4 from Cura9ao, 
and 2 from Buen Ayre. 
Southern Brazil. A collection of land- and freshwater shells 
made by Dr. llcinhold Ilcnsel during his stay in tlie province 
llio Grande do Sul, and deposited in the Zoological Museum of 
Berlin, contained not only several new species, but was also 
accompanied by notes on the occurrence of these and other 
known species. This province had never before been concho- 
logically explored ; and therefore the collection has been made 
the subject of a separate paper by E. v. Martens in the Mai. 
Blatt. XV. pp. 169-217 : 23 terrestrial species, 21 freshwater, 
and 4 brackish water are enumerated, the new ones described, 
and notes concerning the variations, affinities, and geographical 
distribution of other species arc added. It may be mentioned 
that the collection contained a new species of Pellicula, a sub- 
genus hitherto believed to be restricted to the West Indies, a 
new, rather large species of Helix allied to Bolivian and Peruvian 
forms, the true BuUmus pudicus (Miill.), and Helicina [cai'U 
nala, Orb.), the southernmost species of the genus. The greater 
part of the species are identical with forms from llio Janeiro 
and the La Plata. Melania and Limnata are not represented. 
The author has compiled a list of all the species at present 
known to inhabit the countries from llio Janeiro to the 
La Plata, arranging them in three columns according to hy- 
drographical divisions. The introduction contains historical 
notices. The jaw and lingual teeth of some of these species are 
described and figured by F. D. Heynemann in the same Journal, 
pp. 99-113. 
P, Strobel gives a few notes on Ai'gentine Mollusca, Atti Soc. Ital. Sci. 
Nat. xi. 1808, pp. 647-553. 
Several species of Helix and BuUmuH from various parts of South America, 
especially Peru, figured in Pfeifier’s ‘ Novitates.’ 
8. North America. 
Several land- and freshwater shells, collected in Nebraska by F. v. Hayden, 
are enumerated by Tryon, Am. Journ. Conch, iv. pp. 160, 151 j the more 
remarkable are Unio niyei'rimus (Lea), rutersvillensis (Lea), 'mississippiensis 
(Conrad), top>ehactisis (Lea), and pressus (Lea). 
E. Morse continues his paper on the shells of New England in the Ame- 
rican Naturalist, No. 11, 1868. (See Zool. Becord, iv. p. 510.) 
