114 BULLETIN 192, UNITED STATES NATIONAL MUSEUM 



but rather deeply channeled. Periphery inflated, strongly rounded. Base 

 short, inflated, strongly rounded, and marked by the continuation of the 

 axial ribs, the spiral sculpture being obsolete or absent. On the umbilical 

 wall there are indications of weak spiral threads. Aperture broadly oval, 

 slightly angulated at the posterior angle; peristome simple, expanded, 

 more so at the junction of the basal and inner lip. Operculum typically 

 kisslingid. 



The type (U.S.N.M. No. 504038) was collected by Gerrit S. Miller, 

 Jr., in Polo District, Bahoruco Mountains, Dominican Republic, at an 

 elevation of 2,000 feet. It has 4 whorls remaining and measures: Height, 

 14.7 mm. ; greater diameter, 8.8 mm. ; lesser diameter, 7.8 mm. 



U.S.N.M. No. 389890 contains 52 topotypes from the same source. 



Mr. Miller also collected 2 specimens (U.S.N.M. No. 389S09) on the 

 slopes of Loma de Cielo, Bahoruco Mountains, at an elevation of 3,000 

 feet. 



Dr. W. L. Abbott collected 7 specimens (U.S.N.M. No. 504039) 2 

 miles north of Maniel Viejo, Bahoruco Mountains, at an elevation of 

 3,500 feet. 



Its ovate form will readily differentiate this species from Kisslingia 

 hinchensis. 



KISSLINGIA POLOENSIS, new species 



Plate 17, Figure 4 



Shell large, broadly ovate, white, with interrupted vermiculated axial 

 bands of brown, which are arranged also in spiral series; the one at the 

 periphery is broader than the rest. Peristome white. Nuclear whorls 2, 

 inflated, well rounded, microscopically granulose, forming a small apex. 

 Postnuclear whorls inflated, strongly rounded, and marked by slightly 

 retractively curved axial riblets, of which 121 are present on the last 

 turn. These ribs are closely approximated and partly separated by mere 

 impressed lines. The spiral sculpture is scarcely indicated, a mere hint 

 on the early turns is present, but in the umbilicus there are three weak 

 threads near the outer edge. Suture narrowly channeled. Periphery de- 

 cidedly inflated, well rounded. Base inflated, well rounded, openly um- 

 bilicated. Aperture oval; peristome simple, quite strongly expanded. 

 Operculum typically kisslingid. 



The type (U.S.N.M. No. 504040) was collected by Dr. W. L. Abbott 

 near Polo, Bahoruco Mountains, Dominican Republic. It has 4.1 whorls 

 remaining and measures: Height, 20.5 mm.; greater diameter, 15.3 mm.; 

 lesser diameter, 10.8 mm. 



This species is nearest related to Kisslingia clenchi. As in clenchi, the 

 spiral sculpture is practically absent except in the umbilicus. It differs 

 from clenchi, however, in its much larger size and more inflated form of 

 the whorls. 



U.S.N.M. No. 504041 contains 2 topotypes from the same source. 



