156 UROCOPTIS OP HAITI. 



last not protracted, provided with a cord-like keel at the base. 

 Aperture suboblique, nearly circular, channelled at the base; 

 peristome white, expanded, a little reflexed, adherent above. 

 Length 26, diam. 8% mm. ; aperture with perist. 6y 2 mm. long, 

 7 wide (Pfr.). 



Haiti: Port Gonaives (Rolle, Kissling). 



Cyl. sericea PFR., P. Z. S., 1849, p. 134 ; Monogr., iii, p. 565. 

 CROSSE, Journ. de Conch., 1891, p. 143, pi. 3, f. 2.C. s. 

 var. kisslingiana WEINLAND, Jahrb. d. D. Malak. Ges., vii, 

 1880, p. 359, pi. 12, f . 15 ; var. major WEINL. 1. c. Cyl. eugenii 

 DOHRN, Malak. Bl., vi, 1859, p. 205. PFR., Monogr., vi, p. 

 361. CROSSE, J. de C., 1891, p. 144, pi. 3, f. 3. 



The original description is given above. The figures are 

 from Crosse, and represent specimens from Gonaives, col- 

 lected by Rolle. 



The species is evidently variable, and doubtless a number 

 of local races exist, several of which have been named. 



Specimens collected by Rolle in 1888 (pi. 39, figs. 32, 33) 

 are milky- white (showing the dried soft parts through blue 

 or blue-black), very glossy and almost smooth in the median 

 whorls, distinctly striate on the cone and the last half of the 

 last whorl. The plug at the summit is tongue-shaped. The 

 axis is moderately twisted throughout, and the short accessory 

 lamella is distinct. There is no brown tint above. The peri- 

 stome is interrupted above. 



Length 23, diam. 7% mm. ; whorls Sy 2 - 



Length 20.7, diam. 8 mm. ; whorls 7%. 



I have figured the teeth of one of this lot, pi. 50, figs. 9, 10. 



Var. laferrierensis nov. Numerous shells in coll. J. B. 

 Henderson (pi. 41, figs. 62, 63), collected by him at La Fer- 

 riere, are more slender, corneous with a brownish tint, which 

 is often stronger on the upper half ; sculpture of low arcuate 

 riblets, very much better developed than in Rolle 's shells. 

 The axis also is less twisted, and the accessory lamella less 

 developed. The peristome is almost continuous or even 

 slightly free above. The apical plug is very short and convex, 

 but as in the preceding form, the whorl does not break off 

 down to the plug, which is therefore concealed. The whorls 

 are moderately convex. 



