PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 323 
Tralia cingulata Pfr. 
Key West, found at extreme high-water, burrowing under stones six 
inches below the surface; gregarious, nestling together in colonies, 
together with Melampus caffeus, but much more abundant. 
Pedipes naticoides Stearns. 
Key West, plenty under stones at high tide. The specimens are con- 
siderably larger than the type from which Mr. Stearns described this 
interesting species. 
Leuconia hemphilliin.s. (Plate X, lig. 6.) 
Shellsix-whorled, thin, elongate-oval, marked with finestrix of growth; 
whorls inflated, but closely appressed at the suture, last whorl more 
than half the length of the shell; color, waxen whitish, with a broad 
wine-colored band around the periphery, except of the earlier whorls, 
a blush of the same color on the base and outer lip, darkening to a 
deeper stain on the columella; last whorl somewhat contracted toward 
the aperture; outer lip thin, not acute, rounded anteriorly and passing 
into the thick and strongly twisted columella without interruption. 
Lon.,3.75™™; lat., 1.50™™ ; lon. of last whorl, 2.50™™ ; of aperture, 1.50™™. 
Habitat on the mudflats at Cedar Keys, rare. This little species is 
the first known to inhabit the United States, the LZ. sayi of Kuster being 
without doubt referable to Tralia cingulata. None of the genus are 
reported from the adjacent shores of the Antilles by the authorities I 
have been able to consult, and it is not liable to be confused with any 
of the exoiic species. 
* ¥ ¥ 
Siphonaria alternata Say. 
Key West, plenty on rocks between tides. 
Siphonaria naufragum Stearns. 
Saint Augustine, not rare. 
This fine species should be compared with S. lineolata D’Orb. from 
Cuba. 
TERRESTRIAL RHIPHIDOGLOSSA. 
Helicina subglobulosa Shuttleworth. 
Cedar Keys. 
Chondropoma dentatum Say. 
Key West, not rare. 
TERRESTRIAL TASNIOGLOSSA. 
Truncatella caribbeénsis Sby. 
Key West, under dead grass near high-water mark, very abundant. 
Trauncatella pulchella Pir. r 
Key West, with the last, abundant. 
