HISPANIOLAN AND BAHAMAN ANNULARHDAE 173 



weak angle at the posterior angle ; the rest moderately strongly expanded 

 and reflected, adnate to the preceding turn. Operculum? 



The type (U.S.N. M. No. 504140) was collected by Mr, and Mrs. E. 

 C. Leonard at Bombardopolis, Haiti. It has 4.5 whorls and measures: 

 Height, 12.5 mm. ; greater diameter, 6.8 mm. ; lesser diameter, 5.8 mm. 



rNCEBTIPOMA Er,EGANTISSIMUM, new species 



Plate 29, Figure 5 



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

 brown. These bands consist of large blotches distantly spaced and ar- 

 ranged in both axial and spiral series. There are three of them between 

 the summit and the periphery and one on the base. Nuclear whorls al- 

 most 2, large, strongly rounded, microscopically granulose. Postnuclear 

 whorls inflated, strongly rounded, appressed at the summit, and marked 

 by retractively slanting, sublamellar axial riblets, of which 58 are pres- 

 ent on the last turn. These ribs extend over the base and umbilical wall. 

 There is no spiral sculpture. Suture very strongly constricted. Base 

 rather short, inflated, strongly rounded, openly umbilicated. Last whorl 

 solute for about one-tenth of a turn. Aperture ovate; peristome simple, 

 moderately expanded and obliquely reflected and marked at the outer 

 edge by some Hnes of growth. Operculum? 



The type (U.S.N.M. No. 402573) was collected by C. R. Orcutt east 

 of Saltrou, Haiti, on the south side of the south peninsula. It is a 

 complete specimen having 6.4 whorls and measures: Height, 9.5 mm.; 

 greater diameter, 4.8 mm. ; lesser diameter, 4.0 mm. 



U.S.N.M. No. 403601 contains 4 young specimens collected by Orcutt 

 at St. Louis, near Aquin, Haiti, which I am tentatively referring here. 



INCEBTIPOMA SOI.UTIJM (Pfeiffer) 



Plate 30, Figures 2-4 



1852. Choanopoma solutum Richard, Pfeiffer, Conspectus cyclostomaceorum, pp. 

 27, 60. 



1854. Cyclostoma solutum Richard, Pfeiffer, Martini-Chemnitz Conchylien Cabi- 

 net, ed. 2, vol. 1, sect. 19, p. 295, pi. 39, figs. 8-10. 



1920. Ahhottella solutum Henderson and Bartsch, Proc. U. S. Nat. Mus., vol. 

 58, p. 75. 



Shell umbilicated, depressed, with densely crowded threadlike axial 

 ribs, with silky sheen, whitish, with interrupted red-brown spiral lines. 

 Spire little elevated, sharply pointed. Suture channeled, indistinctly 

 denticulated. Whorls 5, convex, the last circular in cross section, some- 

 what decurrent and solute toward the end; the underside rendered re- 

 ticulated by the spiral cords on the umbilical wall. Aperture oblique, al- 

 most circular ; peristome double, the inner continuous and exserted ; the 

 outer white, extended at a right angle and expanded above, arched, and 

 attached caplike to the preceding whorl. Height, 5.5 mm.; diameter, 



