12 DRYM^US, WEST INDIES. 



subangular at the periphery. Aperture ovate, oblique, slightly ex- 

 ceeding half the length of shell ; outer lip acute, simple ; columella 

 concave below, straight above, the edge reflexed, appressed. 



Alt. 16, diara. 9, length of aperture 8J mill. 



Island of Haiti, around San Domingo and Rancho Arriba (Salle) ; 

 around Port-au-Prince (Parkhurst). 



Bulimus stramineus Richard, BLAND, Ann. New York Lye. N. H. 

 xi, p. 84, 1876 Bulimus stramineus WEINLAND, Jahrb. D. M. Ges. 

 vii, 1880, p. 376. Bulimulus stramineus CROSSE, Journ. de Conchyl., 

 1891, p. 127. 



It is with some hesitation that I describe these shells which Bland 

 thinks may be a variety of D. lilaceus^ and Weinland refers to D. 

 stramineus; but I am satisfied that they cannot be a variety of the 

 former species, and the latter is widely separated geographically and 

 presents several differential characters. The specimens before me, 

 from the Robert Swift and A. D. Brown collections, are probably 

 none of them quite mature. 



Var. HAITENSIS n. var. Pi. 39, fig. 4. 



Shell short and rather stout, thin, somewhat translucent whitish, 

 with 5 dark-brown spiral bands, the lowest circumumbilical, those 

 above the periphery interrupted by occasional rather opaque, white 

 longitudinal streaks, or even broken into squarish spots. Surface 

 glossy, engraved with fine spirals. 



Alt. 17, diam. 9^ mill, (immature). 



Alt. 21, diam. Ill m m 



Alt. 16, diam. 8 mill. 



Haiti (Bland, in A. D. Brown coll.); Fort Jacques, near Port-au- 

 Prince (Linden). 



Bulimulus bahamensis BLD., Ann. Lye. N. H. of N. Y. xi, p. 199. 



CROSSE, Journ. de Conchyl., 1891, pp. 128, 206 Bulimus baha- 



mensis WEINLAND, Jahrb. d. mal. Ges. vii, 1880, p. 376. 



The exact position and status of this form are not easily decided. 

 It seems to be what Bland and others have referred to bahamensis as 

 a variety. Some forms of D. palpaloensis Strebel are very similar, 

 and the more slender forms are not unlike D. semimaculatus Pilsbry. 



D. VIRGINALIS var. DOMINICANUS Pilsbry. n. v. PI. 12, fig. 24. 

 This Venezuelan species has already been discussed in vol. xi, p. 



