HISPANIOLAN AND BAHAMAN ANNULARnDAE 175 



conspicuous by the slight shouldering at the summit. Periphery well 

 rounded. Base short, well rounded, and openly umbilicated and marked 

 by the feeble continuation of the axial ribs. The umbilical wall bears 

 three strong cords near its outer edge as well as the feeble continuation 

 of the axial ribs. Aperture oval ; peristome double, the outer enormously 

 expanded, forming a very strong auricle at the posterior angle and a 

 very broad up-curved expansion at the junction of the outer and basal 

 lip, covering the preceding turn at the parietal wall to quite an extent, 

 and marked by concentric lamellae ; the inner very strongly exserted 

 and slightly reflected at the outer edge. Operculum? 



The type (U.S.N.M. No. 504145) was collected by C. R. Orcutt in 

 Haiti without a definite locality label. It has 3.5 whorls remaining and 

 measures: Height, 18.7 mm.; greater diameter, 13.3 mm.; lesser diam- 

 eter, 9.9 mm. 



The outer peristome from the posterior angle to the junction of the 

 inner and basal lip measures, 13.4 mm.; while the inner peristome on 

 the outside at the same place measures 7.0 mm. 



This enormous expansion of the peristome is quite unique as far as 

 Haiti is concerned. 



U.S.N.M. No. 425379 contains 23 topotypes from the same source. 



INCEBTIPOMA BEEVEANUM (Pfeiffer) 



Plate 18, Figure 5 



1850. Cydostoma decussatmn Sowerby, Thesaurus conchyliorum, vol. 1, p. 165a, 

 pi. 31 A, figs. 300, 301. (Not Cydostoma decussatum Lamarck, Histoire 

 naturelle des animaux sans vertebres, vol. 6, pt. 2, p. 147, 1822.) 



1852. Lidna reeveana Pfeiffer, Monographia pneumonopomorum viventium, p. 

 153. 



This is probably a Licina. Its figure resembles Licina caycmetensis, 

 but none of the several hundred specimens of that possess the con- 

 spicuous auricle figured by Sowerby. 



I have seen nothing referable to it so copy Sowerby's description and 

 figure : 



"Shell oblong, pyramidal, fuscous or blackish, decussately grooved, 

 with an obtuse decollated apex ; volutions four, rounded ; suture distinct 

 crenulated ; aperture somewhat elliptical, slightly acuminated posteriorly ; 

 peritreme double, inner narrow, slightly elevated, outer rather wide, 

 reflected, partly covering the small umbilicus." 



INCEBTIPOMA BETE (Weinland) 



1862. Cydostoma rete Weinland, Malak. Blatter, vol. 9, p. 195. 

 1862. Lidna? rete Pfeiffer, Malak. Blatter, vol. 9, p. 200. 



Of this species Weinland had only a single specimen collected in the 

 forest near Debarras. He describes it as follows : 

 Shell compressedly umbilicated, ovate-turrited, solid, reticulated by 



