HISPANIOLAN AND BAHAMAN ANNULAMIDAE 211 



CH0NDR0P03IA (CHONDROPOMA) GtABRATUM ACKLINSENSE, new subspecies 



Plate 35, Figure 5 



We collected many hundreds of specimens of this race at many sta- 

 tions in various parts of Acklin Island. It differs from the other two 

 races of glahrahim in being almost without granules, these showing only 

 on the early whorls. The umbilicus is also very narrow, in which it 

 resembles Chondropoma (Chondropoma) glahratum fortunatum, but 

 is at once distinguished from that by its feeble nodulation. 



The type (U.S.N.M. No. 469135) I collected at Jamaica Bay. It has 

 4.5 whorls remaining and measures: Length, 17.0 mm. ; greater diameter, 

 lo.i mm.; lesser diameter, 8.6 mm. 



U.S.N.M. No. 391 5 18 contains 41 topotypes from the same source. 



U.S.N.M. No. 392389 contains 308 specimens collected by Bartsch on 

 on rocks on the hill at Jamaica Bay. 



U.S.N.M. No. 392353 contains 343 specimens collected by Bartsch on 

 Spring Point, Acklins Island. 



U.S.N.M. No. 392128 contains 729 specimens collected by Bartsch 

 under stones between Snug Corner and the salt lagoon east of it, Mason 

 Bay, AckUns Island. 



U.S.N.M. No. 390409 contains 7 specimens collected by Bartsch on 

 the west shore of the salt lagoon east of Snug Corner, Mason Bay, 

 Acklins Island. 



U.S.N.M. No. 391582 contains 4 specimens collected by Bartsch on 

 the west shore of the salt lagoon east of Snug Harbor, Mason Bay, 

 Acklins Island. 



U.S.N.M. No. 392218 contains 302 specimens collected by Bartsch 

 from the hills in from Cornucopia, Acklins Island. 



U.S.N.M. No. 39221 1 contains i specimen collected by Bartsch at 

 Cornucopia, Acklins Island. 



U.S.N.M. No. 392236 contains 170 specimens collected by Bartsch at 

 Pinnacle Point, Acklins Island. 



U.S.N.M. No. 392202 contains 12 specimens collected by Bartsch at 

 Indian Wells, Acklins Island. 



U.S.N.M. No. 391258 contains 33 specimens collected by Bartsch at 

 Delectable, Acklins Island. 



CHONDROPOIHA (CHONDROPOMA) HJAIiMARSONI Pfeiffer 



Shell rather small, of wax-yellow ground color, marked with inter- 

 rupted spiral bands of brown, which vary materially in number, width, 

 and spacing, the elements composing them, however, being always ar- 

 ranged in axial as well as spiral series. Nuclear whorls almost 2, well 

 rounded, finely granulose, forming a somewhat blunt apex. The last part 

 of the nuclear turns shows some faint, retractively curved hairlines, 

 which later develop into the axial elements of the postnuclear sculpture. 



