NEW ANTILLEAN MOLLUSKS — REHDER 197 



nuclear whorls covered with a rather persistent, yellowish-brown 

 periostracum, which is axially wrinkled by parallel ribletlike folds, 

 which are especially strong near the suture, and run to the umbilical 

 region. Four bands of rather regular, distantly spaced, oblong, 

 chestnuts spots on a white base surround the last whorl, one each on 

 the shoulder and periphery, and two below the periphery. Between 

 the first and second bands and third and fourth bands there are brown 

 bands, the upper one broader than the lower one; the ground color on 

 the rest of the shell is yellowish white. In the umbilicus is a 

 moderately broad funicle ending in a heavy white callous pad. 

 Aperture semicircular. Operculum with a smooth, somewhat concave, 

 nuclear callus, elevated toward the outer edge (away from the 

 columellar side) ; this is followed by a broad and then a narrow 

 rounded rib; after a straight-sided, rather wide interspace comes a 

 rib which is joined to the following two thin lamellae at the top by an 

 irregular, calcareous deposit formed of fused radial elements which 

 are swollen over the first thin lamella. At the marginal edge this 

 deposit is pinched up into an irregularly nodulose crest. 



The type, U.S.N.M. No. 517060, measures, height, 14.8 mm., 

 breadth, 14.7 mm. It was collected at Peanut Island in Lake Worth, 

 Fla., by Ted Bayer. 



Genus OOCORYS Fischer, 1883 



OOCORYS BARTSCHI, new species 



Plate 20, Fiouee 16 



Shell large, ovate, inflated, pale flesh colored. Nucleus broken 

 and worn but apparently consisting of 1.5 smooth whorls. Post- 

 nuclear whorls 6 + , convex, spirally corded, the cords on the later 

 whorls becoming flattened and equidistantly spaced. On the second 

 postnuclear whorl the subsutural area becomes constricted and some- 

 what appressed to the preceding whorl. In the last two or three 

 whorls this area is slightly concave and sculptured with finer spiral 

 cords. The spiral sculpture is crossed by very fine axial growth 

 lines. Aperture elongate-ovate, oblique, outer lip expanded and re- 

 flexed, the reflexed lip made slightly wavy by the ends of the spiral 

 cords, inner lip forming a thin glaze over the parietal wall and a 

 slightly heavier one, with a free edge, on the entire length of the 

 columellar area. Anterior canal rather broad, slightly recurved. 

 Operculum horny, ovate, much smaller than the aperture, with a basal 

 marginal nucleus and many fine concentric growth lines. 



The type, U.S.N.M. No. 535689, was dredged in 79 to 140 fathoms 

 south of Tortugas on July 2, 1932, by Dr. W. L. Schmitt. It meas- 

 ures : Height, 111.7 mm. ; breadth, 71.7 mm. 



