108 



BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



U.S.N. M. No. 355343 contains 32 topotypes which yield the following 

 average measurements : 



This race in form most nearly resembles Haitipoma genevievae, from 

 which its strong auricle at the posterior angle of the aperture will easily 

 distinguish it. 



HAITIPOMA GENEVIEVAE, new species 



Plate 16, Figure 3 



Shell elongate-ovate, flesh-colored. Nuclear whorls decollated in all our 

 specimens. Postnuclear whorls inflated, well rounded, narrowly shoul- 

 dered at summit, and marked by closely spaced, threadlike axial ribs, of 

 which 132 are present on the last turn betv^^een summit and periphery. 

 These riblets extend over the base and the umbilical wall. The spiral 

 sculpture consists of threads about as strong as the axial riblets or even 

 a little stronger than the axial riblets on the early turns. Of these, 22 

 are present between the summit and the periphery on the last whorl, 12 

 on the base, and 16 on the umbilical wall. Suture very narrowly chan- 

 neled. Periphery inflated, strongly rounded. Base short, inflated, strongly 

 rounded, and openly narrowly umbilicated ; the last whorl is solute for 

 about one-fifth of a turn. Aperture ovate; peristome double, the outer 

 almost evenly narrowly expanded, formiing a slight auricle at the pos- 

 terior angle ; the inner slightly exserted and reflected upon the outer. 

 Operculum ? 



The type (U.S.N.M. No. 504034) was collected by Mr. and Mrs. E. 

 C. Leonard at Cabaret, Moustique Bay, Haiti. It has 3.4 whorls remain- 

 ing and measures : Height, 12.3 mm. ; greater diameter, 7.5 mm. ; lesser 

 diameter, 6.6 mm. 



U.S.N.M. No. 504035 contains a topotype from the same source. 



I take pleasure in naming this species for Mrs. Leonard. 



HAITIPOMA P001.EI, new species 



Plate 16, Figure 1 



Shell pale yellow. Nuclear whorls decollated in all our specimens. 

 Postnuclear whorls inflated, strongly rounded, and marked by slender 

 axial ribs, of which 126 are present on the last turn. A number of these 

 ribs at intervals are gathered into sharp cusps at the summit, which are 

 more or less appressed to the preceding turn. The spiral sculpture con- 

 sists of threads about as strong as the ribs. Of these, 13 are present 



