HISPANIOLAN AND BAHAMAN ANNULAMIDAE 167 



TROSCHEL.VINDEX liAFEBRIERENSIS, new species 



Plate 29, Figure 9 



Shell elongate-conic, shining, pale orange, with conspicuous spots, 

 which form interrupted bands arranged in both spiral and axial series 

 and which render the peristome of the last whorl conspicuously rayed. 

 Five of these spiral threads are present on the spire, two on the base, 

 and one at the edge of the umbilicus. The extreme tip of the nuclear 

 whorls also is chestnut-brown. Nuclear whorls 2, well rounded, micro- 

 scopically granulose. Postnuclear whorls marked by slightly retractively 

 curved, low, rounded axial ribs, which are a little wider than the spaces 

 that separate them and which at irregular intervals are gathered into 

 tufts at the summit. The spiral sculpture consists of equally depressed 

 rounded threads equaling the axial ribs in strength, the combination of 

 which lends to the surface of the shell a somewhat fenestrated pattern 

 and to the junction of the two elements a very feebly nodulose aspect. 

 Seventeen of these threads are present between summit and periphery 

 on the last whorl. Of the axial ribs 87 are present on the last turn. 

 Suture well constricted. Periphery inflated, strongly rounded. Base short, 

 inflated, strongly rounded, openly umbilicated and marked by the con- 

 tinuation of the axial ribs and 10 feeble spiral threads. The umbilical 

 wall also bears the attenuated axial ribs and one spiral keel. Aperture 

 oval; peristome double, the inner reflected and appressed to the outer, 

 separated by a mere line ; The outer expanded on the outer and basal lip 

 and the anterior portion of the inner lip, narrow on the columellar and 

 parietal wall. Operculum with submarginal nucleus, bearing a slender, 

 obliquely slanting spiral lamella. 



The type (U.S.N.M. No. 504129) was collected by Henderson and 

 Simpson at La Ferriere. It has 7 whorls remaining and measures : Height, 

 15.6 mm.; greater diameter, 7,2 mm.; lesser diameter, 6.0 mm. 



U.S.N.M. No. 1 6293 1 contains 34 topotypes. 



This species resembles Troschelvindex abbotti, from which it can be 

 readily distinguished by the single spiral keel on the umbilical wall. 



TBOSCHEL.VINDEX ABBOTTI (Henderson and Bartsch) 



Plate 29, Figure 1 



1920. Tudora (Tudora) ahhotti Henderson and Bartsch, Proc. U. S. Nat. 

 Mus., vol. 58, pp. 81-82. 



Shell broadly elongate-conic, flesh-colored, with interrupted spiral 

 bands of brown, which are apparent within the aperture and ray the 

 outer peristome. The extreme nuclear tip is also brown. Nuclear whorls 

 2, microscopically granulose. Postnuclear whorls marked by retractively 

 slanting, rounded ribs, which at irregular intervals are gathered into 

 tufts at the summit. Of these ribs 93 are present on the last whorl. The 



