258 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [l^*-"- 



under the name of Lea. to whose figure it bears a certain resemblance. 

 My attention was called to the matter by Mr. R. Ellsworth Call, and on 

 investigation I foniid tliat tbe species generally known as B. oMusa Lea, 

 though nearly twice the size assigned it in Lea's description, is never- 

 theless probably correctly identified. The Florida species is more acute 

 and much smaller. Frauenfeld records it from East Florida in Mus. 

 Cuming. Hem[)hill obtained it living in tbe creek at Jacksonville and 

 dead in the salt ponds at Key West, where it may have been drifted. 

 Stearns eollected it in a spring 1 mile from Tampa. The specimens 

 are accnrately represented by Frauenfeld's figure, though larger than 

 he intlicates. The present identification is therefore i^robably correct. 

 It does not seem to have any American synonym. He also records A. 

 porata Say (1. c, p. 1030) from Smyrna, East Florida. 



Eydrobia? Wetherbyi, n. s. Plate 17, fig. 10, 



? Amnicola nutaUiana Frauenfeld, I.e., 1863, p. 1029. 



Shell short, stout, obtuse, polished, greenish gray, with four and a 

 half whorls, slightly striated in both directions, umbilicus reduced to a 

 mere groove behind tbe lip; whorls rounded, the last nuich the largest; 

 suture distinct; a})crture ovoid, entire, bluish white within, with a dark 

 margin outside, slightly thickened, not reflected; plane of the aperture 

 somewhat oblique, not waved ; aperture slightly smaller than the 

 wljoil immediately behind it. Lon. 7.0, max. lat. o.(>, max. Ion. of aperture 

 3.5™™. Operculum subspiral, light horn colored. 



Habitat.— Lake Eustis, Florida, Wetherby. Mus. Cat. ^^o. 32123.' 

 This interesting shell was communicated to me by Mr. Wetherby, 

 who has examined the soft parts, which appear to locate it in the genus 

 Hydyohia, as understood by European authors. The notes made by him 

 on bis dissections of the soft parts have not reached me owing to his 

 absence in Europe. It is not improbably the shell mentioned by Frau- 

 enfeld, under the name of JL. iiuttalUana as collected by Shuttleworth at 

 Silver Spring on the Oclawaha and at Fort King, East Florida. It 

 bears, however, only a very slight resemblance to the true Nuttalliana^ 

 which is a species of tbe Pacific slope. 



Goniobasis Eto-wahensis Lea. Plate 17, fig. 7. 



Melania Etowahensis (Lea) Eve. Conch. Icon. Mclama sp. 426, May, 1861. Not 



of Lea, Proc. Acad. Nat. Sci. Phil., 1862, p. 264. 

 Goniohasis Canbiji Lea, 1. c, p. 271, 1862. Not of Tryou, L. and F. W. Sh. N. 



Am., part iv, p. 260, 1873 {=^ Etowahensis Lea non Rve.). 

 Goniobasis Etowahensis, Tryon, I.e., p. 148, 1873. 

 ? MeJania paiJiUosa Anthony, Rve. Couch. Icon. Mon. Melania, sp. 467, 1861. 



Abundant in the mound at Enterprise and on the beach washed from 

 the mound. This was the original locality where it was obtained by 

 Mr. Canby. I did not find it living, the season being perhaps too early 

 It has been found living in the Etowah River, Georgia, and tbe Tennes- 

 see River. Tryon suggests the identity of G.painllosa Anthony, with the 

 present form, which, as ^hown by the mound specimens, is most vari- 



