158 BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



KBY TO THE SUBSPECIES OF WEINLANDIPOMA GONAVENSB 



Shell stout robustum 



Shell not stout. 



Scallops between summit and periphery 8 conceptum 



Scallops between summit and periphery 5 gonavense 



WEINL.ANDIPOMA GONAVENSE ROBUSTUM, new subspecies 



Plate 28, Figure 3 



This subspecies was collected by Orcutt at several stations near Les 

 Cayes, Haiti. It differs from typical IV. g. gonavense in being much 

 larger and much more gibbose. 



The type (U.S.N.M. No. 404981), which comes from Carbenia, 

 Haiti, has 4 whorls remaining and bears 63 of the strong ribs on the 

 last turn and 6 scallops on the ribs, 2 on the base, and 2 on the umbilical 

 wall. It measures: Height, 8.8 mm.; greater diameter, 5.3 mm.; lesser 

 diameter, 4.0 mm. 



U.S.N.M. No. 504135 contains 38 topotypes from the same source. 



U.S.N.M. No. 402766 contains 31 specimens collected by Orcutt near 

 Les Cayes on a steep wooded slope in a dry ravine. 



WEINLANDIPOMA GONAVENSE CONCEPTUM, new subspecies 



Plate 28, Figure 2 



This subspecies appears to be confined to that part of the south coast 

 of the south peninsula that extends from Coteaux to Les Cayes, Haiti. 

 It is smaller and slenderer than W. g. robustum. 



The type (U.S.N.M. No. 402340), which was collected by C. R. 

 Orcutt on the road between L'Acul and Port Salut, about halfway to 

 the first summit, has 39 axial ribs on the last whorl. It has four strong 

 scallops on the earlier whorls and eight between the summit and periph- 

 ery on the last turn, one on the base, and two at the edge of the um- 

 bilicus. The type has 6.5 whorls and measures : Height, 8.8 mm. ; greater 

 diameter, 5.3 mm. ; lesser diameter, 4.0 mm . 



U.S.N.M. No. 402314 contains 67 topotypes from the same source. 



U.S.N.M. No. 404887 contains 7 specimens from Anse a Juif. 



U.S.N.M. No. 404769 contains 4 specimens collected by Orcutt i 

 mile west of Point Sable. 



U.S.N.M. No. 402149 contains 6 specimens from Port Salut, collected 

 by Orcutt. 



U.S.N.M. No. 402109 contains i specimen collected by Orcutt on 

 the north side of the Riviere de Port Salut near its mouth. 



U.S.N.M. No. 404795 contains 3 specimens collected by Orcutt at 

 Carpentier. 



U.S.N.M. No. 404812 contains 46 specimens collected by Orcutt west 

 of Carpentier. 



