30 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 16 



This species has been recorded in the Recent fauna from La Paz, 

 Panama, the Pearl Islands and in the Hawaiian Islands by Vaughan. 

 It is found in the Pleistocene on Coronados Island, Gulf of California. 

 Depth, 3-6 ft. in the Hawaiian Islands. 



Quelch (1886, p. 129) refers 2 specimens to this species from Hono- 

 lulu and Kandavu, Fiji. 



Hypotype: Cat. no. 8.5 (Sta. 80-33). 



Material examined: Stas. 5-33 (4), 23-33 (2), 30-33 (3), 59-33 

 (1), 80-33 (2), 113-33 (10), 411-35 (frags.). Bottom samples 308 

 (1)?, 328 (1)?, 329 (frags.)?, 503 (frags.)?, 518 (2)?. Cat. nos. 

 8.1-8.12. 



Distribution: Bottom samples 328 and 329 are from Chatham Bay, 

 Cocos Island, 14-46 fms; Stas. 30-33 and 59-33 are in the Galapagos 

 Islands, shore to 13 fms; the rest of the stations range in the Panamic 

 area from Bahia Honda south to La Libertad, Ecuador, shore to 55 fms. 

 The question marks indicate questionable identifications of worn ma- 

 terials. 



