154 BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



Shell very small, helicoid, flesh-colored. Nuclear whorls 2, inflated, 

 strongly rounded, forming a rather pointed apex. Postnuclear whorls 

 strongly rounded and marked by sublamellar, retractively slanting axial 

 ribs, of which 58 are present on the last whorl. The spiral sculpture 

 consists of slender threads, of which eight are present between summit 

 and periphery on the last whorl, six on the base, and eight on the 

 umbilical wall. The junction of the axial ribs and spiral threads forms 

 nodules that are rather sharp on the spire, less so on the umbilical wall. 

 Suture strongly constricted. Periphery well rounded. Base openly um- 

 bilicated. Aperture almost circular ; peristome double, the inner exserted ; 

 the outer moderately broadly expanded, somewhat auriculated at the 

 posterior angle and marked by slender concentric lamellae. Operculum 

 with nucleus and a decidedly elevated, slightly oblique lamella. 



The specimen figured (U.S.N.M. No. 504103) is one from the Salle 

 collection bearing the locality "Santo Domingo" without specific loca- 

 tion. It has 4.5 whorls and measures: Height, 4.1 mm.; greater diameter, 

 6.0 mm. ; lesser diameter, 4.7 mm. 



U.S.N.M. No. 151335 contains 6 specimens collected by Salle in the 

 Dominican Republic. 



U.S.N.M. No. 529440 contains 3 specimens from Sowerby and Fulton 

 labeled "Haiti." 



U.S.N.M. No, 504104 contains 2 specimens from the Cuming Col- 

 lection. 



U.S.N.M. No. 504105 contains 12 specimens from the Prime Collec- 

 tion. 



U.S.N.M. No. 504106 contains i specimen labeled "Santo Domingo." 



U.S.N.M. No. 316429 contains 3 specimens from the Evezard Collec- 

 tion. 



ABBOTTGL.LA ABBOTTI, new species 



Plate 27, Figures 10-12 



Shell small, of turbinid outline, pale yellow, with rather broad inter- 

 rupted spiral bands of brown. Nuclear whorls 1.8, small, inflated, 

 strongly rounded, forming a conspicuously elevated apex. Postnuclear 

 whorls strongly rounded and marked by axial riblets, which bear strongly 

 elevated hollow spines, of which 31 are present on the last whorl. Of 

 the rows of spines, seven are present between the summit and the pe- 

 riphery, three on the base, and three on the umbilical wall. The latter 

 are less strongly spinose. Suture strongl}^ constricted. Periphery rendered 

 angulated by the spiral cords. Base well rounded, openly umbilicated. 

 Aperture circular; peristome double, the inner somewhat exserted; 

 the outer broadly expanded, wider on the outer lip than on the inner and 

 marked by concentric, slender lamellae, and strongly fluted. Operculum 

 with central nucleus and a strongly raised oblique lamella. 



The type (U,S,N.M. No. 504108) was collected by Dr. W. L. Abbott 



