246 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



Postnuclear whorls very strongly inflated and strongly rounded, the 

 first marked by fairly regularly distantly spaced axial riblets, which are 

 sUghtly wavy, the rest by lamellose axial riblets, which are rendered 

 scalloped at regular intervals. Of these scallops, 4 occur between the 

 summit and the periphery of the whorls. Suture very strongly con- 

 stricted. Periphery inflated, strongly rounded. Base very broadly, 

 openly umbilicated, marked by the continuation of the axial ribs and 

 three series of scallops. The outer edge of the umbilicus is limited 

 by a strong spiral cord, and the umbilical wall has 8 low spiral threads, 

 wliich also render the axial ribs slightly scalloped. The last whorl is 

 solute for about one-fifth of a turn. Aperture subcircular; peristome 

 simple. Operculum tudorid. 



The specimen described and figured, U.S.N.M. No. 493473, a 

 topotype, was collected by Oscar Tolhn 15 miles south of Media Luna, 

 on the road to Pildn, Oriente Province. It has 5.1 whorls and meas- 

 ures: Length, 7.0 mm.; greater diameter, 6.2 mm.; lesser diameter, 

 5.3 mm. 



LIMADORA GAECIANA (Aguayo) 



Shell varjdng from elongate-conic to elongate-ovate, flesh colored, 

 with a yellowish tinge. Nuclear whorls 2, well rounded, rough, with a 

 surface resembling that of a coarse rasp. Postnuclear whorls some- 

 what inflated, well rounded, marked by rather strong, hollow, re- 

 tractively slanting, sublameUose axial riblets, which project at the 

 summit as slender aujicles. The spiral sculpture consists of obsolete 

 threads, which render the axial riblets scalloped. Suture strongly 

 constricted. Periphery well rounded. Base well rounded, very 

 narrowly, openly umbilicated, marked by the continuation of the 

 axial riblets and by spiral cords, the latter a Httle stronger than those 

 on the spire; the junction of the spiral cords with the axial ribs render 

 the latter strongly scalloped. Last whorl solute for almost half a turn, 

 wliich gives a free view of the umbilical wall, which is marked by the 

 continuation of the axial riblets and by spiral threads, the latter form- 

 ing narrow scallops at their jimction with the axial riblets. Aperture 

 very broadly oval; peristome double, the inner projecting scarcely 

 above the outer; the outer only sHghtly expanded. Operculum 

 typically tudorid. 



This species is found in the region of Santa Lucia, Oriente Province. 

 We are recognizing two subspecies, which the following key and 

 descriptions will help to differentiate: 



KEY TO THE SUBSPECIES OF LIMADORA GARCIANA 



Spiral cords on spire 4 sillaensis 



Spiral cords on spire 5 garciana 



