118 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.70 



RISSOA (CINGULA) LAMPRA, new species 



Shell about the size of R. campta but with a more drawn out last 

 whorl and less constricted suture; white, acute, with a small, some- 

 what irregular glassy nuclear whorl and five subsequent neatly 

 rounded whorls; axial sculpture of numerous fine, thread like nearly 

 vertical riblets crossing the early whorls and reaching near the pe- 

 riphery on the last whorl; they are more or less evident on different 

 specimens; spiral sculpture of five even faint striae, covering the 

 whole surface; base rounded, imperforate; aperture ovate, not 

 oblique, margin simple, thin, united over the body in the adult by a 

 thin layer of enamel. Height, 3.6 mm.; diameter, 1.6 mm. U. S. 

 Nat. Mus. Cat. No. 108096. 



Off Fernandina, numerous. 



Genus BENTHONELLA Dall, 1889 



BENTHONELLA NISONIS Dall 



Benthonella nisonis Dall, Bull. Mus. Comp. ZooL, vol. 18, p. 283, 1889. 



Off Fernandina, five specimens and fragments. Gulf of Mexico, in 

 940 fathoms. United States Fish Commission. 



BENTHONELLA GAZA Dall 



Benthonella gaza Dall, Bull. Mus. Comp. Zool., vol. 18, p. 282, 1889. 



OS Fernandina and Georgia, abundant. South to the vicinity of 

 Ceara, Brazil, in 1,019 fathoms. United States Fish Commission. 



This is the type of the genus. Jeffreys named the genus Hela, basing 

 it upon another North Atlantic species, but that name was preoc- 

 cupied. 



Genus LITIOPA Rang, 1829 



LITIOPA BOMBYX Rang 



Litiopa bombix Rang, Annales Sci. Nat., p. 303, 1829. — Tryon, Manual 

 Conchology, vol. 9, p. 281, pl. 53, fig. 74, 1887. 



Off Fernandina, not rare. 



This is of course a pelagic floating species. The specimens agree 

 with Tryon's figm-e but are only about 4 millimeters long. They are 

 quite smooth under a lens. 



LITIOPA STRIATA Pfeiffer 



Litiopa striata Pfeiffer, Archiv fiir Naturg., vol. 1, p. 255, 1840. — Tryon, 

 Manual Conchology, vol. 9, p. 281, pl. 53, fig. 72. 1887. 



Off Fernandina, one specimen. 



This form is evenly totally spirally striate. 



