131 Bulletin 38 > 161 



affine Verrill, Tr. Conn. Acad., 6, p. 199, pi. 32, f. 15, '84, (as 

 Cydostrevia) . Not of Jeffreys, 1883. 



trochoides V)2i\\, Bull. M. C. Z., 18, p. 393, 1889; Dall,Bull. 37, 

 U. S. N. M., p. 166, '89, {2iS Cydostrema). ^ot trochoides 

 (Jeffreys) Sars which is a variety oi petterseiii Friele. 



Distribution,— Lat. 41° N., Lon. 65° W. to Lat. 35° N., 

 Lon. 74° W. (Bush); West Florida (Ball). 



Genus CHORi STELLA Bush 



pompholyx Ball, Bull. M. C. Z., 18, p. 394, pi 28, f. 9, '89, (as 

 Cydostrema); Bull. 37, U. S. N. M., p. 166, pi. 28, f. 9, 

 '89; Bush, Tr. Conn. Acad. Sci., 10, pp. 99, 140, 1899- 

 1900. 



Bistribution. — Blake Station 2, Gulf of Mexico, type locali- 

 ty. Also Fernandina, Florida, to Cuba. 294-805 fms. 

 Note. — This species is referred tentativel}^ to Choristella as 

 Miss Bush suggested that it might prove referable to this 

 genus. . ' 



Genus EPSCYNiA Moerch 



multicarinata Stimpson, MS., Ball, Bull. M. G. Z., 18, pp. 273, 

 392, '89; Bull. 37, U. S. N. M., p. 166, '89, (as ViMnella); 

 Bush, Tr. Conn. Acad., 10, p, 112, '99-1900. 



Bistribution. — Hatteras to West Florida. Pliocene, Caloosa- 

 hatchie beds,^ Fla. Upper Miocene, Buplin Co., N. Car. 

 Perhaps identical with the Ardiitedonica gemma of Holmes 

 listed by Hilgard from the I^ake Borgne borings, La. 



Genus ETHALIA A. Adams 



The following species are of doubtful generic position. They 

 were excluded ixom. Ethalia by Pilsbry (Man. Conch., 11, 

 p. 457) when he restricted that genus and gave Ethalia 

 guaviensis Quoy and Gaimard, as the genotype. Br. 

 Ball has referred me to Miss Bush's revision (Trans, Conn. 

 Acad. Sci., 10, p. 116, '89-1900). Apparently she tentative- 

 ly retains these three species in Ethalia. 



