1881.] Recent Mollusca during the year 188o. 715 
Sars being neither the &. devigata Dall (from Bering strait), nor 
the Pleurotoma simplex of Middendorf, the identification of the 
species recorded under Sars’ name may be considered as still in 
oubt. 
In the November number of the Valley Naturalist, Mr. Calkins 
enumerates twelve species of mollusks additional to his list of 
marine shells of Florida of 1878. 
Some notes on the molluscan fauna of Dominica, are given by 
A. D. Brown, in the American Natura.ist (Vol. xv, No. 1, pp. 
56-7), and relate chiefly to the land shells. Mr. Guppy’s publica- 
tions (Aun. Mag. Nat. Hist., 1868) are criticised, and it is stated 
among the notes that Amphibulima patula possesses the power of 
completely contracting itself within its shell. 
A list of “ Land and fresh water mollusks of Muscatine county, 
lowa,” was printed, in 1879, in the History of Muscatine county, 
(8vo, 1879, pp. 332-3) by Professor F. M. Witter, who also 
printed a tract of four pages entitled, “ Notes on Wyoming 
Hills,” a paper read before the Muscatine Academy of Science, 
June 2, 1879, which includes notes on various species of recent 
and subfossil Pulmonata. These publications have not been seen 
by the recorder. 
In the report of the work in 1879 (p. 434) reference was made 
to a criticism in Science News, by Mr. Stearns, of a paper on the 
Shells of Florida by Mr, Calkins. In the same (now defunct) 
publication (June 15, 79, p. 255), Mr. Calkins replies, maintain- 
ing the probable accuracy of the disputed identification of a 
Floridian Ranella collected by him with R. muriciformis Brod., a 
West American species, rather than with 2. caudata of Say, as 
Mr. Stearns would suggest.} ag 
It seems that there were also published by Mr. Calkins, in 
1879, the following papers: “ The terrestrial molluscan species of 
Florida, with notes of personal observation,” in the Journal of the 
Cincinnati Society of Natural History in 1879, and “Note ona 
rare Californian marine mollusk,” in Science News of July, 1879. 
During the summer of 1880, Mr. T. A. Verkruzen visited the 
Banks and Newfoundland, and dredged there, beside collecting 
from several other sources, such as cod stomachs, etc. He pub- 
sagem from Florida having been kindly submitted to the feonnder by 
‘ cae my compared with authentic specimens of &, muricifor ms, seem to 
y different from that Pacific coast species, though belonging to the same 
Seneral group, and, in general, not dissimilar in characters. 
