307 Dominican Fossils — Maury 143 



Melanella {Eulima) Jacululum, n. sp. 

 Plate 25, Figure 3 



Shell small, slender, solid, porcellanous ; whorls about twelve, 

 their width nearly twice their height, their sides flattened, some- 

 what overhanging the following volutions; suture distinct, trans- 

 verse; base of body whorl rounded; aperture small; outer lip 

 thin, arcuate, slightly produced anteriorly; the shell shows traces 

 of a rosy band near the suture. Length of shell 4.25, of body 

 whorl 1.50, of aperture .70; greatest width 1.25 mm. This 

 species is characterized by its overhanging whorls. 



Locality. — (Exp'd '16) Bluff 3, Cercado de Mao. 



Melanella (Eulinia) Tethyos, n. sp. 

 Plate 25, Figure 4 



Shell small, slender, surface entirely smooth, whorls about 

 twelve, their sides straight, their axial height being equal to one- 

 half their width; suture distinct, transverse; base of body- whorl 

 rounded; aperture small; outer lip simple, slightly oblique, arcu- 

 ate, hardly produced anteriorly; inner lip with a small callus, 

 wider on the columella. Length of shell 6.60, of body whorl 

 1.25, of aperture 2.25; diameter 1.85 mm. 



Locality. — (Exp'd '16) Bluff 3, Cercado de Mao. 



Genus Niso Risso 

 Niso grandis Gabb 

 Plate 24, Figure 8 



Niso grandis Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 227, 1873. 

 Niso grandis Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 6, p. 1584, 1903. 



Gabb's shell was unusually large with a diameter of 13 mm. 

 As none of ours attained this size I felt some doubt of their iden- 

 tity with Gabb's and asked Dr. Dall's opinion. He pronounced 

 our shell N. grandis. 



Localities. — (Exp'd '16) Zone I, Pio Cana at Caimito; 

 Bluff 3, Cercado de Mao; 



