UEOCOPTIS, S. G. GONGTLOSTOMA. 265 



Length 16.3, diam. 2 mm. ; whorls 



Length 20, diam. 2.25 mm.; whorls 18 (Pfr., type). 



Eastern Cuba: Cayo del Rey, Mayari (Wright, Jeanneret). 



Cyl. wrighti PFR., Malak. BL, ix, 1862, p. 132 ; Monogr., vi, 

 p. 387; Novit. Conch., p. 456, pi. 100, f. 10, 11. ABANGO, 

 Contrib., p. 126. SOWERBY, C. Icon., xx, pi. 10, f. 85. 



More lengthened than hilleri, with wide-spaced riblets and 

 more whorls. Pfeiffer found 26 in a specimen retaining the 

 spire complete. 



148. U. BACULUM Pilsbry, n. sp. PI. 59, figs. 87, 88, 89, 90. 

 Shell very slenderly fusiform, tapering to a narrow trun- 



cation, thin, opaque, somewhat glossy; cream colored or pale 

 pink, with scattered dark corneous lunate streaks, each bor- 

 dered on the right side with an opaque white patch. Sur- 

 face sculptured with rather weak, wide-spaced, arcuate and 

 oblique riblets, stronger on the last whorl. Whorls convex, 

 the last free, produced downward and forward in a long, 

 spirally curved neck. Aperture oblique, circular, the peri- 

 stome rather widely expanded and reflexed. Axis as in U. 

 wrighti, the single lamella delicately serrate in the upper 

 whorls. Radula with 7.1.7 teeth (pi. 60, fig. 11), the two 

 inner lateral teeth on each side large, the rest decidedly 

 smaller. 



Length 14.8, diam. 1.9 mm. ; whorls 17. 



Length 11.5, diam. 1.7 mm. ; whorls 14. 



Length 11.7, diam. 1.9 mm. ; whorls 14. 



Cuba (T. Bland, in Swift, coll., types no. 71553 A. N. S. P.). 



Smaller and more fusiform than U. wrighti (which it re- 

 sembles in sculpture), and having a longer, more sinuous 

 neck. U. hilleri is more strongly and more closely striate. 

 The whorls are more convex than in U. porrecta. It may be 

 near cinerea Pfr., but has more whorls in the same length. 



149. U. PRODUCTA ('Gundlach' Pfr.). PI. 58, figs. 61, 62, 

 63, 64. 



Shell slender, cylindric, the upper half slowly tapering, 

 summit truncate; thin, brownish-corneous, with a gloss as if 



