286 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



TOL. 57. 



Cat. No. 



205905 

 110993 

 110994 

 225486 

 110995 

 160999 

 110996 

 110999 

 110998 

 111000 

 110997 

 160908 

 111001 

 111004 

 111002 

 111003 

 111005 

 210802 

 223223 

 111007 

 111006 

 111008 

 111009 

 111010 

 222596 

 206411 

 222158 

 110988 

 206470 

 209766 

 55781 

 224444 

 111011 

 111012 

 223581 

 11780 

 74232 

 274132 

 224351 

 126076 



Locality. 



Petrel Bank, Bering Sea, 54 fathoms 



Small Pass, Kyska Island, 10 fathoms 



Kyska Harbor 



Atka Island 



Amchitka Island, 10 fathoms 



Amchitka Island 



Unalashka Island, 70 fathoms 



Unalaslika Island, 16 fathoms 



Iliuliuk Hari)or, 5 fathoms 



Iliuliuk Harbor, 15 fathoms 



Iliuliuk Harbor, 25 fathoms 



Port Levasheff 



Akutan Pass 



Coal Harbor, Unga Island 



Coal Harbor, Unga Island, 8 fathoms 



Coal Harbor, Unga Island, 1. w 



Coal Harbor, Unga Island, 8-9 fathoms 



Popoff Strait 



Popofi Strait 



Nagai Island 



Yukon Harbor, 13 fathoms 



Simeonoff Island 



Semidi Islands, 20 fathoms 



Chirikoff Island, 9-14 fathoms 



Chignik Bay, 60 fathoms 



Southeast of Alaska Peninsula, 21 fathoms. . 



Afognak Bay, 16 fathoms 



Kodiak Island 



Kodiak Island. 



Kodiak, St. Paul 



Kodiak 



Kodiak 



Collector. 



B. F... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Dall... 

 Fisher. 

 Fisher. 

 Fisher. 

 B. F... 



Kodiak, St. Paul, 13 fathoms Dall 



Kenai, Cooks Inlet. 



Dundas Bay, Alaska, 10 fathoms . 



Sitka Harbor, 1. w 



Sitka Harbor 



Turn Island, Gulf of Georgia 



Puget Sound, 40 fathoms 



Astoria, Oregon 



Dall 



B. F 



Dall 



Hepburn. 

 Oldroyd.. 



B. F 



White-... 



Number 

 of speci- 

 mens. 



1 

 2 



2 V. 

 3 

 1 



1 V. 

 4 

 5 

 2 

 10 

 6 

 1 

 6 

 12 

 2 

 4 

 3 



1 V. 



9 

 2 

 3 

 1 V. 

 1 

 4 

 1 

 1 

 1 



V. 



1 



20 



12 



3 



3 



2 



3 



20 



1 



1 



2 V 



The specimens are in general very uniform. No. 215076, however, 

 is nearly as coarsely striated and ribbed as the New Zealand H. 

 nigricans. The largest specimen, No. 6279, measures: width, 30, 

 length 32, and diameter 22 mm. 



HEMITHYRIS NIGRICANS Sowerby. 



Terebratula nigricans Sowerby, Proc. Zool. Soc, 1846, p. 91; Thes. Conch., vol. 1, 



p. 342, pi. 71, figs. 81, 82, 1847. 

 Rhynchonella nigricans Dall, Amer. Joum. Conch., vol. 6, p. 152, fig. 34, 1870. — 



Davidson, Mon. Rec. Brach., pt. 2, p. 169, pi. 24, figs. 16-19, 1887. 

 Rhynchonella nigricans var. pyxidata Watson, (in Da^ddson) Challenger Brach., 



p. 59, pi. 4, fig. 14, 1880.— Davidson, Mon. Rec. Brach., pt. 2, p. 170, pi. 24, 



fig. 20, 1887. 

 Hemithyris nigricans Dall, Proc. Acad. Nat. Sci. Phila. for 1873, p. 196. 



Type locality. — New Zealand. 



