82 BULLETIN 90, UNITED STATES NATIONAL MUSEUM. 



Section SUBULAKIA Monterosato, 1884. 



Type. — Leiostraca metcalfei A. Adams, 



Shell short spired, with color markings, pellucid, markedly com- 

 pressed, with the varices continuous on each side, as in Bursa., the 

 spire hardly acute and the last whorl larger in proportion than in 

 typical Eulima. 



This is the type of Adams's genus and so far the only species 

 known of it. Iloplopteron Fischer may present an extreme develop- 

 ment of this compression and lateral expansion. lopsis Gabb, from 

 an examination of the type, proves to be an immature smooth Ris- 

 soina, although it has been referred to the Eulimidse. 



There is a number of named groups which have been associated 

 with this family, but of which I have been unable to study authentic 

 specimens and therefore can not attempt to express an opinion about 

 them. Doctor Bartsch has observed that there is a certain number 

 of species of Melanella which, when immature, have a marked keel 

 at the periphery of the last whorl, and even show some traces of 

 angulation on the last whorl of the adult. This verges by almost 

 imi)erceptible gradations into the evenly rounded species, and, while 

 as a group it is perceptible, can hardly rank higher than a section, 

 if, indeed, worthy of a name at all. SubeuUma Souverbie may have 

 been proposed for the most conspicuous development of this feature, 

 if it is not the tip of a Vermetid. 



MELANELLA CONOIDEA Kurtz and Stimpson. 

 Plate 3, fig. 13. 



Eulima conoidea Kurtz and Stimpson, Proe. Boston Soc. Nat. Hist., vol. 4, 

 p. 115, 1851.— KuBTZ. Cat. South Carolina Mar. Sh., p. 8. I860.— Dall, 

 Trans. Wagner Inst., vol. 3, pt. 1, p. 159, pi. 5, fig. 11, 1899. 



Odostomia alba Calkins, Davenport Acad. Sci., 1878, p. 239, pi. 8, fig. 3 

 (from type). 



Oligocene of the Tampa silex beds at Ballast Point, Tampa Bay, 

 Florida. Pliocene of South Carolina and southern Florida; Pleisto- 

 cene of the Carolinas; living from North Carolina to the Florida 

 Keys, in shallow water. U. S. Nat. Mus. No. 112191. 



EULIMA BOWDICHI, new species. 

 Plate 12, fig. 14. 



Shell small, smooth, conic, with 5^ remaining and probably 7 or 

 more original whorls; suture not strongly marked; the only sculp- 

 ture consists of a few axial impressed lines indicating resting stages 

 which are probably more or less variable in number and position; 



