336 REPORT ON ALBATROSS MOLLUSCA — DALL. 



Family LITIOPID.E. 



Genus ALABA A. Adams. 



Alaba conoidea Dall. 



Aloha conoidea Dall, List of Marine Molluske, etc., Bull. U. S. Nat. Mus., No. 37, p. 146, 

 1889. 



Shell small, conical, subtrausluceut white, with six whorls; apex 

 rather blunt; nucleus not differentiated; whorls polished, sculptured 

 only with obscure incremental lines, suture distinct, a little. channeled; 

 sides of the spire flattened, tin whoils hardly rounded ; the base almost 

 oarinate or bluntly rounded; aperture lozenge shaped, augulated ac the 

 end of the carina, pointed bluntly in front and behind ; body and pillar 

 somewhat callous ; operculum normal ; the shell has but one or two not 

 very conspicuous varices, all on the last whorl. Maximum longitude 3.3; 

 diameter 1.6 mm . 



Hab. — Station 2595 and 2596, off Cape Ilatteras, North Carolina, in 

 49 to 03 fathoms, sand ; Station 2012, in 52 fathoms, sand, off Cape 

 Lookout, North Carolina; aud Station 2068, in 294 fathoms, gravel, off 

 Fernandina, Florida; and by Dr. W. H. Rush, of U. S. S. Blake, on the 

 Campeche Bank, in 200 fathoms ; temperatures 40° to 75° F. 



Family SOLARIID.E 



Geuus SOLARIUM Lamarck. 



Solarium bisulcatum Orbiguy. 



Collected at Station 2702, east from Rio Janeiro, in 59 fathoms, mud. 

 It extends northward to the archibenthal area off Martha's Vineyard, 

 where the young was described by Professor Verrill under the name of 

 8. boreale. 



Family RTSSOID.E. 



Geuus BENTHONELLA Dall. 



Hela Jeffreys, 1870 (ex parte) uot of Minister, 1830. 



Benthonella Dall, Bull. Mus. Comp. Zool., xvni, p. 281, Juue, 1889. 



In the fifth volume of his British Conchology (p. 204, pi. 101, f. 7, 1809), 

 Dr. Jeffreys described a Lacuna tenella dredged by Drs. Carpenter and 

 Thomson, in the North Atlantic, at a depth of 180 to 050 fathoms. The 

 types are in the Jeffreys' collection now in the U. S. National Museum. 

 In July, 1S70, in the "Auuals and Magazine of Natural History," he 

 proposed a genus Hela for these shells, which he still retained in the 

 vicinity of Lacuna. The name Hela, however, had been preoccupied in 

 Crustacea for many years. In the proceedings of the Zoological 

 Society for 1883 (p. 110), he referred his genus to Cithna, a subgenus of 

 Fos.sartts, proposed by Arthur Adams (P. Z. S., 1803, p. 110). An ex- 

 amination of three species of CHIma, sent by Mr. Adams to Dr. Jeffreys, 



