VARICELLA, JAMAICA. 95 



Var. striatella nov. There is a form in which the sculp- 

 ture grows stronger on the later whorls. On the last, the 

 surface between the varices is closely and very regularly rib- 

 striate, the striae rounded, parted by very narrow intervals, 

 and continuing from suture to base. Whether these shells 

 constitute a distinct race or subspecies I am unable to say, 

 in the absence of a well localized series. 



38. V. DOMINICENSIS (Gmelin). Vol. I, p. 26, 251. 



Eastern Jamaica. Evidence that this species occurs in 

 Haiti or Santo Domingo does not exist-. 



39. V. DEFLORESCENS (Vendiyes). PI. 17, fig. 17. 



"Shell elongated, sub-fusiform, turreted, shining; color 

 rather pale brown, generally with dark chestnut-brown, some- 

 what arcuated streaks, a set of which run coincidently with 

 the varices completely across each whorl. The painting of 

 the shell is singularly varied ; each successive whorl presents 

 at the start a semi-translucent, sharply-defined and pure 

 white stripe, which gradually passes into pale brown, then 

 slowly deepens in color as the whorl progresses, into a warmer 

 tint and finally merges into an intensely dark-brown stripe, 

 covering the varix forward, which varix marks the termin- 

 ation of a stage of growth. This gradually changing color 

 scheme is always repeated between the several varices, but 

 it is less noticeable upon the upper part of the spire, although 

 actually traceable almost to the apex. Shell regularly sculp- 

 tured with not very crowded rib-like striae. Whorls 8, very 

 slightly convex and obsoletely angular just below the upper 

 margin, which is -crenulated by the passing over of the stria?. 

 Suture moderately impressed. Last whorl a little more than 

 one-third the entire length. Outline of spire slightly curvi- 

 linear ; apex pointed. Aperture ovate, oblong, consider- 

 ably dilated at right side of base; labrum not sharp. Colu- 

 mella white, straight, well truncated with a strong callosity 

 deeply impressed and folded by the entering stria? and varices 

 which pass to and over it from the shell. 



Length 17 to 18.5, diam. 5, length of aperture 6, diam. 

 2 mm." (Vendryes). 



