362 PROCEEDINGS OF THE NATIONAL, MUSEUM Vol. SO 



umbilicus, and is heavier than the rest. On the umbilical wall 10 

 additional spiral cords are present, which render the axial riblets 

 slightly scalloped. Last whorl solute for about one-tenth of a turn. 

 Aperture broadly ovate; peristome double, the inner moderately ex- 

 panded and reflected, forming a little shelf at the posterior angle; the 

 outer very broadly expanded, somewhat hooded at the posterior angle 

 and fluted on the broad inner lip. Operculum typically lugarenid. 



The type, U.S.N.M. No. 493501, was coUected by Rodriguez in the 

 Sierra de San Martin de Biaya, Camagiiey Province. It has 5.5 

 whorls and measures: Length, 12.3 mm.; greater diameter, 10.0 mm.; 

 lesser diameter, 8.1 mm. 



ANNULARIA (LUGARENIA) NAJAZAENSIS. new species 



Shell broadly elongate-ovate, pale yellow, with or without obsolete 

 interrupted spiral bands of brown. Nuclear whorls very strongly 

 inflated, weU rounded, minutely granulose, forming a somewhat 

 pupoid apex. Postnuclear whorls inflated, strongly rounded, ap- 

 pressed at the summit, marked by sublamellar, retractively slanting 

 axial ribs, which are quite variable in strength. The spiral sculpture 

 is very feebly expressed, being indicated only by minute nodulations 

 on the ribs, and these are best developed near the summit of the shell. 

 Suture strongly constricted. Periphery inflated, weU rounded. Base 

 moderately long, well rounded, openly umbilicated, marked by the 

 continuation of the axial ribs and spiral threads. Aperture ovate; 

 peristome double, the inner exserted and reflected, forming a slight 

 shelf at the posterior angle; the outer rather broadly expanded and 

 slightly hooded at the posterior angle. Operculum typically lugarenid. 



This species also comes from the southern part of Camagiiey 

 Province. 



We are recognizing two subspecies, which the following key will 

 help to differentiate: 



KEY TO THE SUBSPECIES OF ANNULARIA (LUGARENIA) NAJAZAENSIS 



Spiral sculpture of umbilical wall strong najazaensis 



Spiral sculpture of umbilical wall feeble p alomarensis 



ANNULARIA (LUGARENIA) NAJAZAENSIS NAJAZAENSIS, new subspecies 



Plate 47, Figure 7 



This subspecies is easily distinguished from A. (L.) najazaensis 

 palomarensis by its larger size and stronger sculpture of the umbilical 

 wall. It also has the nodules on the spire less strongly emphasized. 



The type, U.S.N.M. No. 493503, was collected by Dr. de la Torre 

 at El Cacaotal, Sierra de Najaza, Camagiiey Province. It has 6.2 

 whorls and measures: Length, 15.1 mm.; greater diameter. 10.3 mm.; 

 lesser diameter, 8.4 mm. 



