HISPANIOLAN AND BAHAMAN ANNULARIIDAE 15 



CHONDKOPOMA (CHONDROPOMOBTJS) GNOTE PUsbry 



Shell elongate-conic, color varying from flesh-colored to pale yellow 

 in ground color and marked by interrupted spiral bands of brown, the 

 elements of which vary very much in width and spacing. They are ar- 

 ranged in axial as well as spiral series. In some of the races, however, 

 this arrangement is not definite, and in some they become fused in 

 places, both axially and spirally, to form blotches of an irregular pattern. 

 These color markings are also present on the base. The peristome is 

 either white or pale yellow, and the outer lip is rayed corresponding 

 to the banding of the last whorl. The upper portion of the nuclear whorls 

 is bright red, which marks them very conspicuously when viewed from 

 the tip end. Nuclear whorls a little more than 2, forming a moderately 

 slender apex, with the whorls inflated, strongly rounded, and smooth. 

 The postnuclear whorls are inflated, strongly rounded, and marked by 

 weak, low, rounded, slightly retractively slanting, crowded axial riblets 

 of which several are gathered into tufts at the summit, giving the sum- 

 mit a somewhat notched appearance. This character varies considerably 

 in strength in the various races, as does the axial sculpture itself. The 

 spiral sculpture consists of cords about as wide as the axial riblets. The 

 summit of the whorls is appressed. The lack of elevation of the axial 

 ribs and spiral ribs gives to the surface a somewhat polished effect. 

 Suture moderately constricted. Periphery inflated with a faint indication 

 of angulation. The base is short, inflated, moderately openly umbilicated, 

 well rounded, and marked by the continuation of the axial ribs, which 

 become narrower than those on the spire as they approach and extend 

 into the umbilicus, and spiral threads, which are about as strong as those 

 on the spire, except the last one or two near or at the edge of the um- 

 bilicus, which are usually stronger. The aperture is broadly ovate; 

 peristome double, the outer narrow on the inner lip and broadly flaringly 

 expanded on the basal and outer lip, forming a rather conspicuous 

 auricle at the posterior angle, the inner peristome exserted, reflected, 

 and partly adnate to the outer. Operculum thin, corneous, paucispiral. 



The collection before me indicates that this species extends over the 

 northern and central range of mountains. Our material enables me to 

 recognize a number of races, which the following key will help to 

 differentiate : 



KEY TO THE SUBSPECIES OF CHONDROPOJIA (CHONDROPOMORUS) GNOTB 

 Shell stout. 



spots composing interrupted spiral bands small and distantly 



spaced enneryense 



Spots composing interrupted spiral bands not small or distantly 



spaced tuobi 



Shell not stout. 



Spots composing interrupted spiral bands small and distantly 



spaced kriegeri 



Spots composing interrupted spiral bands not small or distantly 

 spaced gnote 



