60 BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



CHONDBOPOMA (CHONDBOPO»L4) ANNAE, new species 



Plate 9, Figure 2 



Shell elongate-turrited, flesh-colored, with interrupted spiral bands of 

 brown, which vary considerably in width and spacing. Nuclear whorls 

 2.5, inflated, well rounded, smooth. The postnuclear whorls are inflated, 

 strongly rounded, and marked by decidedly retractively curved, slender 

 axial lamellae, which vary considerably in strength and spacing, finer 

 lamellae frequently alternating with the heavier; sometimes more than 

 one or two of the finer are present between the heavier. The heavier 

 lamellae, while irregularly spaced, average about three times the thickness 

 of the finer threads. The spiral sculpture consists of slender threads 

 that render the lamellae slightly sinuous and serrulate at the edge, as 

 well as somewhat cusped at their summit. Suture moderately constricted; 

 periphery inflated, well rounded. The base is short, inflated, strongly 

 rounded, openly umbilicated, and marked by the continuation of the 

 axial ribs and spiral threads ; the latter are a little stronger here, par- 

 ticularly on the anterior part, than on the spire. The umbilical wall 

 bears several threads on its outer half. The last whorl is solute for about 

 one-fifth of a turn. Aperture broadly oval ; peristome double. In perfect 

 specimens the outer is narrowly expanded, somewhat wavy and of equal 

 width except on the parietal wall where it is narrower. The inner is 

 slightly exserted and very slightly reflected. The operculum is thin, 

 corneous, paucispiral, with the nucleus halfway between subcentral and 

 marginal. 



This species appears to occupy the Samana Peninsula and extends over 

 the western half of the south coast of Samana Bay, Dominican Republic. 



The type (U.S.N.M. No. 472041) was collected by Mrs. Gerrit S. 

 Miller, Jr., on the upper Orange Keys on the south coast of Samana 

 Bay. It has 8 whorls remaining and measures : Length, 16.8 mm. ; greater 

 diameter, 8.2 mm. ; lesser diameter, 6.7 mm. 



I take pleasure in naming this for Mrs. Miller. 



U.S.N.M. No. 369147 contains 135 topotypes from the same source. 



U.S.N.M. No. 369138 contains 61 specimens collected by Gerrit S. 

 Miller, Jr., on the lower Orange Keys, Dominican Republic. 



U.S.N.M. No. 472042 contains 47 specimens collected by W. L. Abbott 

 a quarter of a mile from San Lorenzo Bay, Samana Bay. 



U.S.N.M. No. 425524 contains 56 specimens collected by H. W. 

 Krieger at San Juan, Samana Peninsula. 



U.S.N.M. No. 425406 contains 3 specimens collected by Gerrit S. 

 Miller, Jr., at Boca del Infierno, Samana Bay. 



U.S.N.M. No. 499183 contains i specimen collected in the center of 

 the south side of Samana Bay, Samana Peninsula. 



