WEST CUBAN OBELISCUS. 279 



Stcnogyra august at us GUNDLACH, in Poey's Memorias, ii, p. 

 15, pi. 2, f. 6, 7 (1856) ; and in Malak. Bl., iii, 1856, p. 41.- 

 ARANGO, Fauna, p. 90. Bulimus angustatus Gundl., PPR., 

 Monogr., iv, p. 454. 



The very crude original figure is copied, pi. 33, figs. 39, 40. 

 Gundlach adds that it differs from its congenors by the 

 lengthened form, small aperture and numerous whorls. It 

 has ais many whorls as 0. blandianus in -a considerably less 

 length, and the riblets are said to be "subrectis," while in 

 blandianus they are conspicuously arcuate above. I have 

 figured, pi. 33, fig. 45, a shell received from Bland as angus- 

 tatus, which agrees fairly well with the description, though 

 I would hardly call the surface ribbed. It is very finely rib- 

 striate, much more densely and delicately so than 0. blandi- 

 anus. Length 11.3, diam. 2, length aperture 2.25 mm., diam. 

 of second whorl 1 mm. ; whorls 10% ; exact locality unknown. 

 The rather large apex and attenuate spire give it a cylindrel- 

 loid appearance. 



37. 0. BINNEYI Pilsbry, n. sp. PL 31, fig. 15. 



Shell imperforate, turrite, regularly and straight'ly taper- 

 ing to the obtuse apex, thin. Surface rather glossy, closely 

 and regularly sculptured with straight, subvertical riblets 

 about as wide as their intervals. There are about ten of 

 these riblets in the space of one mm. on the front of the last 

 whorl. Whorls 9, the first l l / 2 smooth. The earlier 6 whorls 

 are strongly convex, and the last two are flat peripherally. 

 The suture is very deeply impressed. The aperture is nearly 

 vertical, rhombic, narrow above and below. Columella ver- 

 tical, rather strongly calloused, and more or less distinctly 

 obliquely truncate at the base. Length 10, diam. 2.8, length 

 of aperture 2.6 mm. ; diam. at second whorl 1 mm. 



"Western Cuba: Isabel Maria (Chas. Wright). 



This species is quite distinct by reason of its short whorls, 

 regular taper, and the straight vertical rib-sculpture. It is 

 named for Mr. W. G. Binney. 



