64 VARICELLA. 



vals. On the last embryonic whorl the intervals show sev- 

 eral striae parallel to the riblets. The post-nepionic whorls 

 are sculptured with rather rude, waved or irregular, widely- 

 spaced riblets, 19 to 21 on the last whorl, the intervals with 

 about 9 coarse strias, also somewhat waved. There are also 

 numerous very low rounded spiral cords. The varices are 

 low and inconspicuous, whitish, more arcuate than the ribs, 

 each preceded by a reddish-brown stripe. The color else- 

 where is very pale brown. 



Length 19.7, diam. 3.9, length apert. 5 mm. ; whorls 10y 2 . 



Length 16, diam. 3.3, length apert. 4.3 mm. ; whorls 9%. 



The specimen before me from Port Antonio is faded and 

 broken, and may have washed down from the mountains. 



10. V. DAVIDENSIS Pilsbry, n. sp. PI. 14, figs. 34, 35. 



One of the species labelled A. gossci in the C. B. Adams 

 collection is evidently not that form and seems to differ from 

 all known species. The dead shell is clouded with pale red- 

 dish brown and light ground, sculptured with stout, nearly 

 straight vertical ribs, the crests one-half mm. apa.rt at the 

 periphery of the last whorl. The intervals are very minutely 

 sculptured with waved stria? (fig. 35). AVhorls 9y>, the first 

 3y 2 embryonic, more finely costulate. Aperture irregularly 

 pirif orm, the columella vertical, .obliquely truncate at its base. 

 Length 13, diam. 3 mm., aperture 4 mm. long. 



Jamaica: St. David's (C. B. Adams), type in coll. Am- 

 herst College. 



11. V. CHITTYANA Pilsbry, n. sp. PI. 12, figs. 1, 2, 3. 



Shell thin, pale brown, with faint traces of brown varix- 

 streaks, of the usual turrite shape, the outlines slightly con- 

 tracted near the apex, elsewhere straight or slightly convex. 

 Whorls 9 to 9V 2 , moderately convex. Embryonic shell of 

 3 to 3y 2 whorls, the first one smooth, the rest sculptured 

 with well-spaced straight riblets, each interval with 4 or 5 

 parallel striae (pi. 14, fig. 33). Post-nepionic whorls with 

 similar sculpture, but the riblets are slightly waved or irre- 

 gular, 30 to 33 on the last whorl; the intervals have about 



