23 



white or yellowish with numerous purple-brown longitudinal undula- 

 ting stripes which are widened at intervals, forming on the body- 

 whorl four spiral bands of spots, sometimes in part coaleccent spirally, 

 three on the spire, leaving the umbilical area and a band along the 

 outside of the lip light ; markings absent on the earlier whorls. Spire 

 conic, apex rather obtuse, white, with typical Drymaus sculpture. 

 Whorls about 6, slightly convex, the last not descending. 



Aperture vertical, elliptical, narrowed above and below, maculated 

 inside, one-half the length of the shell ; peristome rather broadly 

 bordered with white, moderately expanded, the columellar lip dilated, 

 columella slightly concave, with a faint fold above. 



Alt. 28, diam. 13^; alt. of aperture 14 mill. 



Alt. 34, diam. 14; alt. of aperture 17 mill. 



St. Vincent, on a mountain ridge between Mt. $t. Andrews and the 

 Grand Bonhomme, about 2000 ft. alt., damp forest, generally on the 

 leaves of palm trees (H. H. Smith). 



Bulimulus undulatus GUILDING, Zool. Journal iv, p 169 Buli- 

 nus undulatus SOWB., Conch lllustr, f. 54 Bulimus undulatus 



REEVE, Conch. Icon. pi. 40, f. 247 PFR., Monogr. ii, p. 95 ; iii, 



374; iv, 444; vi, 80; viii, 112; Conchyl. Cab. p. 167, pi. 50, f. 7. 

 Bulimus (^Plecochilus} undulatus E. A. SMITH, Proc. Malac. Soc. i, 

 p. 306. Not Plekocheilus undulatus GLDG., see vol. x, p. 65. 

 Bulimulus Jluctuatus BECK, Index, p. 66. 



This species has the color-pattern of a typical Drymceus, though 

 with the lip less expanded than usual. The pattern of scalloped 

 streaks is broken into spots on the spire, in the usual and typical 

 form. Figs. 79, 80, copied from Pfeiffer, represent a variety or form 

 with quite modified color-pattern. 



Beck has named three varieties : exalbidus^ subfasciatus and litur- 

 atus ; the latter only is defined by a reference to Sowerby's Conch, 

 lllustr. f. 54. This figure is somewhat more slender than my fig. 77, 

 but has no claims to varietal distinction so far as I can see. 



D. ELONGATUS (Bolten). PI. 11, figs. 1-26. 



Shell oblong-conic, perforate or closed, solid and strong. White, 

 yellowish or red, unicolored or variously banded or streaked with 

 chestnut, chocolate or purplish-brown. Shining, smoothish, with 

 slight growth-lines and generally minute, sub-obsolete spiral striation. 

 Spire straightly conic, long, apex rather obtuse. Whorls about 6, 

 but slightly convex. 



