ART. 17 ILLUSTKATIONS OF TYPES OF SHELLS DALL 



Dredged by the United States Bureau of Fisheries steamer Alha- 

 tross at station 5036, in 464 fathoms, mud, off the south coast of Yesso 

 (Hokkaido), bottom temperature 37.9° F. 



ARCA (NOETIA) MACDONALDI Dall 



Plate 17, fig. 9 



Area (Noetia) macdonaldi Dall, Smithsonian Misc. Coll., vol. 59, p. 9, 1912. 

 Later Tertiary of Costa Rica. U. S. Nat. Miis. Cat. No. 214344. 



ARCA (SCAPHARCA) PITTIERI Dall 



Plate 17, fig. 7 



Area (Scapharca) pittieri Dall, Smithsonian Misc. Coll., vol. 59, p. 9, 1912. 

 Later Tertiary of the Canal Zone, Panama. U. S. Nat. Mus. Cat. No. 214343. 



ASTRAEA PERSICA Dall 



Plate 35, figs. 4, 6 



Astraea persica Dall, Smithsonian Misc. Coll., vol. 56, p. 167, 1907. 



Off Kagoshima Bay, Japan, in 103 fathoms. U. S. Nat. Mus. Cat. No. 110507. 



Genus BASILISSA Watson 



Subgenus Orectospira, new subgenus 



BASILISSA (ORECTOSPIRA) BABELICA Dall 



Plate 32, figs. 8, 12 



Basilissa hahelica Dall, Smithsonian Misc. Coll., vol. 50, p. 168, 1907. 



Dredged by the United States Bureau of Fisheries steamer Alhatross off 

 Hondo, Japan, at station 4973, in 600 fathoms, gravel, bottom temperature 

 39.8° F. Height of shell, 37 mm. 



Watson named no type for his genus and I select his first species 

 B. lampra. The present species differs from the typical form by the 

 absence of the sinus where the outer lip joins the body, the elevation 

 of the spire and in other minor features. It is possible that Watson's 

 B. suferha may belong in this subgenus. 



BERINGIUS INDENTATUS Dall 



Plate 7, fig. 3 



Beringius indentatus Dall, Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 312, 1919. 

 Bering Sea, off the Khudubine Islands, in 53 fathoms. U. S. Nat. Mus. Cat. 

 No. 213318. 



BERINGIUS MALLEATUS Dall 



Plate 6, fig. 5 



Stromhella malleata Dall, Proc. U. S. Nat. Mus., vol. 7, p. 525, 1884. 

 Point Barrow, Alaska. U. S. Nat. Mus. Cat. No. 15170. 



