108 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Astarte globosa Moller, 1842. 
Plate 19, figs. 5, 5a. 
Index Moll. Gronl., p. 20. Reeve, Last of the Arctic Voy., 3 :398; pi. 33, fig. 6. 
Testa sub-trigona, ventricosa, transversim minute silicate, luteo-fusca; 
parte anteriore prominente, rotundata; parte posteriore obtusa, truncata 
Diam., 5'". (Moller.) 
Small, blunt, ventricose, yellow-brown, the anterior end longer, 
rounded, the posterior end sub-truncate, the surface closely, finely, con¬ 
centrically sulcate all over. (Dali.) 
Type locality and disposition of the type not known to the present 
writer. 
Range. Arctic Coast, Greenland. 
SECTION RICTOCYMA Dali, 1872. 
Astarte esquimalti Baird, 1863. 
Plate 13, fig. 19. 
Proc. Zool. Soc., p. 70. Proc. U. S. N. M., 26; pi. 63, figs. 11, 12. 
C. testa parva, cordato-trigona, crassiuscula, olivacea, transversim 
undato-plicata, antice producto-rotundata, postice subtruncata, margine 
ventrali rotundata, umbonibus, lunule longe caudata. Long, rather more 
than J /z inch; lat., nearly y 2 inch. (Baird.) 
Recognizable by its irregular sculpture. (Dali.) 
Type in British Museum. Type locality, Esquimalt Harbor, Vancouver 
Island, British Columbia. 
Range. Aleutian Islands to Puget Sound. 
Genus BERNARDINA Dali, 1910. 
Shell small, of the general form of Rochefortia, concentrically sculp¬ 
tured externally, with a conspicuous prodissoconch, which is elevated 
in the center and at the margins and between these points somewhat 
excavated; pallial line entire; hinge with the posterior dorsal margin of 
the right valve fitting into a shallow groove in the margin of the opposite 
valve; anteriorly with a strong left lateral fitting between two prominent 
flexuous right anterior laterals; two right and three left cardinals with 
the resilium posterior to them all. (Dali.) 
Type. Bernardim bakeri Dali, 1910. 
Distribution. California. 
Bernardina bakeri Dali, 1910. 
Plate 15, figs. 7, 8. 
Proc. Biol. Soc. Wash., 23 :171. 
Shell small, short-ovate, white, with sculpture of fine regular concentric 
grooves with wider interspaces; moderately compressed; umbos moder- 
