VARICELLA, JAMAICA. 75 



breadth .135 inch; length of aperture .16 inch." (Adams}. 



Jamaica: West of Port Antonio, Williamisfield and be- 

 tween MJandeville and Spurtree Hill (Henderson). 



Achatina blandiana 'C. B. A., Contrib. 'to Conch, no 5, p. 

 83 (1850). 



The type shell in Adams' collection is 15.5 mm. long with 

 9 whorls, the last one broken. I figure a specimen agreeing 

 with it (figs. 48, 49). The riblets are as wide as their inter- 

 vals and at the suture they partially unite in groups of two 

 or three, forming little prominences along the suture (fig. 49), 

 which though more or less conspicuous in different individ- 

 uals, are very characteristic of the species. The riblets are 

 distinctly arcuate below the suture, elsewhere oblique and 

 straight, about 9 in a mm. on the last whorl. There are two 

 or three varix-lines on each of the later whorls, each pre- 

 ceded by a conspicuous chestnut streak which recedes as it 

 nears the suture above. These streaks are more conspicuous 

 in the type than in most other lots of blandiana I have seen. 

 The first half whorl is smooth, fine stria? beginning on the 

 second. The upper part of the spire is rather attenuate. 

 The locality of this typical form is unknown. 



Many other specimens in the 'collections of the Academy 

 and Henderson differ by the much less broad and conspicu- 

 ous brown streaks and somewhat smaller size, one from 

 Spurtree Hill measuring, length 13.5, diam. 3.5, length of 

 aperture 4.1 mm., with 8% whorls. They are rather pale 

 brown, with a whitish border on each side of the chestnut 

 streaks. 



22. V. PROXIMA (C. B. Adams). PI. 10, figs. 50, 51, 52. 



"Shell conic but slender: very pale brown or horn color; 

 with dark brown transverse stripes, about three on each 

 whorl, less distinct on the upper whorls: with fine regular 

 transverse small elevated lamellae : apex moderately obtuse, 

 smooth on the nuclear whorls: spire long, with the outline 

 nearly rectilinear : whorls eight, planulate, abruptly shoul- 

 dered above, with a rather deep suture : aperture small, ovate : 

 labrum 'thin and sharp : columella nearly straight. This shell 



