VARICELLA, CUBA. Ill 



narrower contour and wider false umbilicus, the columella 

 being more deeply arched and the axis therefore describing 

 a more open spiral. Three specimens in the type lot are 

 whitish, but one in coll. J. B. Henderson is pale translucent 

 brown, and is also slightly larger, 5.9 x 1.2 mm., with 7% 

 whorls. 



55. V. SPINA Pilsbry, n. sp. PL 18, figs. 22, 23. 



The shell is acicular, thin, yellowish 'corneous, glossy, com- 

 posed of 6% whorls, which are 'convex just below the narrowly 

 impressed suture, but elsewhere are nearly flat. First 2% 

 whorls smooth, the summit obtuse, rounded. The following 

 whorl is sculptured with rather close-set vertical grooves. 

 The remaining whorls have irregularly and rather widely 

 spaced grooves, and a few indistinct varix-grooves, two of 

 the latter on the last whorl. The aperture is piriform, ob- 

 lique; the outer lip arches forward above. The columella is 

 deeply concave above, and tapers downwards, without a 

 notch or truncation at the base. An extremely small false 

 umbilicus is visible in a basal view. Length 6.3, diam. 1.35 

 mm., aperture 2 mm. 



Jamaica : Ipswich, at the bottom of a deep ' ' cockpit ' ' 

 (J. B. Henderson, Jr.). 



This species resembles V. pellucens in sculpture, but differs 

 in the form of the columella and the narrower contour. 



Cuban Species. 



V. elata seems to be related to the Jamaican species pre- 

 ceding ; the other forms are more like those of Haiti, and the 

 same type of shell extends to Porto Rico. According to 

 Gundlach, the labial margins of V. trinitaria are not pro- 

 duced into long processes as is usual in Oleacinidce . I have 

 not seen subulatoides, succinea or gundlachi, and the sys- 

 tematic positions of the former two are very uncertain. 



56. Y. ELATA ('Gundlach' Pfr.). PL 18, figs. 30, 31. 



Shell fusiform-turrite, rather thin, sculptured with rather 

 close hair-like striae, pellucid, glossy, waxy. Spire regularly 



