110 VARICELLA, JAMAICA. 



but rather deeply impressed, the embryonic and last two 

 whorls rather flattened, the intermediate ones somewhat more 

 convex. The aperture is small, oblique, piriform. The outer 

 lip arches forward above, and is retracted basally. The colu- 

 mella is deeply concave and 'basally truncate. The axis as- 

 cends spirally, so that in a basal view (fig. 25) a narrow false- 

 umbilicus is seen. Length 6.8, diam. 1.5 mm. 



Jamaica. Types 59070 A. N. S. P., from A. D. Brown coll. 



This species is closely related to V. pellucens from which 

 it differs by the even, close grooving of all the post-embryonic 

 whorls, and by the somewhat more slender contour. 



Some specimens in the Henderson collection are of a pale 

 brownish- corneous tint. They came from the Holland col- 

 lection, without exact locality. 



A form from Mandeville (J. B. Henderson) has the peri- 

 phery and base of the last whorl smooth, and the columellar 

 axis more sinuous, producing a larger false umbilicus, though 

 not so large as in the following form. It measures 6.9 x 

 1.5 mm., having 7y whorls. 



54. V. COCHLIDIUM Pilsbry, n. sp. PL 18, figs. 26, 27. 



The shell is acicular-cylindric, glossy, whitish-corneous (or 

 pale brownish-corneous), composed of 7% whorls, the earlier 

 ones somewhat convex, the last two nearly flat. Embryonic 

 2y 3 whorls smooth ; following whorls sculptured with slightly 

 curved longitudinal grooves, parted by slightly wider con- 

 vex intervals. There are about 25 grooves on the last 

 whorl, where they become weak or obsolete on the base. 

 There are one or two wider smoothish variceal streaks on each 

 of the later whorls, but they are not conspicuous. The aper- 

 ture is small, oblique, acutely piriform, dilated anteriorly. 

 The outer lip is arched forward above the periphery, and 

 recedes basally. The columella is calloused, forms a deep 

 arch, and is truncate basally. Axis openly spiral, forming a 

 broad and deep false umbilicus in a basal view. Length 5.3, 

 diam. 1 mm. 



Jamaica. Types 59071 A. N. S. P. 



This species differs from V. clappi by its smaller size, 



