46 



Gabb, and Thyatira? bisecta, Meek. 



Off Port Orcnard, Puget Sound, Washington. 



531 Calyptogena paciflca Dall. 



A new genus and species, from off Dixon entrance, Alaska, 

 in 322 fathoms. — Los Angeles, Cal. (Pliocene). 



582 Limopsis vaginatus Dall. 



Off Unalashka Isl., in 351 fathoms, and south of Urimak, in 

 80 fathoms. 



o 



533 Dall, William Healey: 



The species named in No. 494 are further noticed by the same 

 author in U. S. nat. mus. pr 17:675-733, t 23-32. This includes 

 many from the Hawaiian Archipelago, which we do not propose 

 to mention here. But the West American forms not noted above 

 will be mentioned under numbers 534-548. 



534 Buccinum aleuticum Dall. 



South of Unimak Isl., in 59 fathoms. 



535 Buccinum ovulum Dall. 



Amukhta Pass, Aleutians, in 248 fathoms, sand. 



536 Chrysodomus insularis Dall. 



Near Pribilof Islands, in 184 fathoms, muddy bottom. 



537 Chrysodomus ( Ancistrolepis) magnus Dal.l 

 Near Pribilof Islands, in 46 fathoms, sand. 



538 Beringius frielei Dall. 



Near Pribilof Islands, in 86 fathoms. 



530 Beringius aleuticus Dall. 



Aleutian Islands, in 248 fathoms, sandy bottom. 



540 Frieleia halli Dall. 



Off Gray's Harbor, Wash., and off San Diego. A new genus 

 named in honor of James Hall. 



541 Terebratulina caput-serpentis Linne. 



Circumboreal? Finland to France. San Diego, Cal. — Japan. 



Synonymy quoted — Terebratula unguicula Carpenter. 



Straits of Fuca to San Diego, Cal., near low water to 20 fath- 

 oms, chiefly obtained by dredging, sometimes from a depth of 

 half a mile. Shell ash colored externally, popularly called the 

 snake's head lamp shell, described by Carpenter under the name 

 Terebratula unguiculus. Upper tertiary rocks of Europe, etc. 

 See Dall, U. S. Nat'l Mus. pr 17:719-720 t 32 f 2, 5 (1894). 

 Southern part of Bering Sea. 



Variety unguicula Davidson. 



Mon Rec Brach ptl:25 (1886) is treated by Dall as typical. 



542 Terebratulina kiiensis Dall and Pilsbry. 



Off Santa Cruz, Cal., in 240 fathoms. Bering Sea; Japan. 



543 Laqueus californicus Koch. 



Off San Pedro, in 30 fathoms (Oldroyd). Queen Charlotte 

 Islands. 



