106 BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



HAITIPOMA EUTYCHES EUTYCHES (PUsbry) 



Plate 15, Figure 8 



1933. Chondropoma eutyches Pilsbry, Proc. Acad. Nat. Sci. Philadelphia, vol. 85, 

 pp. 125-126, pi. 6, fig. 13. 



This subspecies was collected by A. Olsson at Hato Vie jo, Dominican 

 Republic. It is easily differentiated from the other two in having the 

 sculpture a little less strong and a little more closely spaced and the 

 carina at the posterior angle on the solute portion of the whorl less pro- 

 nounced. The auricle at the posterior angle is also less developed. 



The type (Acad. Nat. Sci. Phila. No. 160981) has 4.1 whorls remain- 

 ing and bears 113 ribs on the last turn. It also has 12 spiral threads be- 

 tween the summit and the periphery, 6 spiral threads on the base, and 7 

 on the umbilical wall. It measures: Height, 14.4 mm.; greater diameter, 

 7.1 mm.; lesser diameter, 6.4 mm. 



Through the kindness of Dr. H. A. Pilsbry I have been able to de- 

 scribe and figure this unique specimen. 



HAITIPOMA EUTYCHES BABEL,ENSE, new subspecies 



Plate 16, Figure 10 



This race was collected by Mr. and Mrs. E. C. Leonard between Jean 

 Rabel and Le Mole, Haiti. It has the suture more narrowly channeled 

 than the other two and the cusps more pronounced. The spaces between 

 the axial and spiral threads are also more squarish. 



The type (U.S.N.M. No. 504031) has 4.2 whorls remaining, the last 

 of which bears 88 axial ribs and 9 spiral cords between the summit and 

 periphery, 9 on the base, and 9 on the umbilical wall. It measures : 

 Height, 13.0 mm. ; greater diameter, 6.9 mm. ; lesser diameter, 6.0 mm. 



U.S.N.M. No. 504032 contains 11 topotypes from the same source. 



HAITIPOMA HINCHENSE, new species 



Plate 16, Figure 9 



Shell very elongate-ovate, flesh-colored, with a huffish tinge. Nuclear 

 whorls 2, inflated, strongly rounded, forming a rather small apex. Post- 

 nuclear whorls well rounded and marked by slender, retractively curved 

 axial riblets, which vary materially in strength, heavy ones being suc- 

 ceeded by finer elements. A number of these riblets are gathered into 

 very strong cusplike tufts at the summit of the whorls. Of these axial 

 ribs, 126 are present on the last turn. They extend over the base into the 

 umbilicus. The spiral sculpture consists of slender threads equaling the 

 axial riblets in strength. Of these, 14 are present on the last turn between 

 summit and suture, 7 on the base, and 9 on the umbilical wall. The 

 spaces enclosed between the axial ribs and spiral threads are more or 



