208 ALLAX HAXCOCK PACIFIC EXPEDITIONS VOL. 23 



PLATE 16 



Fig. 1. Cyclopecten (Delectopecten) polyleptus (Dall), 1908. Holo- 

 type (single right valve). Albatross station 4642, off Hood 

 Island, Galapagos Islands, in 300 fathoms. Height and 

 length: 9.5 mm. (U.S. National Museum collection, no. 

 110586. Photograph by F. B. Kestner, U.S.N.M.) P. 



Figs. 2, 3. Cyclopecten (Delectopecten) polyleptus (Dall), 1908. 

 Single left valves. Albatross station 2818, near Galapagos 

 Islands, in 392 fathoms. (U.S. National Museum collection, 

 no. 206395. Photograph by F. B. Kestner, U.S.N.M.) 



Fig. 4. Cyclopecten (Delectopecten) randolphi (Dall), 1897. Para- 

 type. Albatross station 3343, off Destruction Island, Wash- 

 ington, in 516 fathoms. Height: 31 mm; length: 30 mm. 

 (Grau collection.) P. 



Fig. 5. Cyclopecten (Delectopecten) randolphi (Dall), 1897. Label- 

 led ''Pecten (Pseudamusium) ivhiteavesi Dall" by I. S. 

 Oldroyd. Scripps Institution of Oceanography station 1486 

 (1908), off San Diego, California, in 413 fathoms. Height 

 and length: 30 mm. (Stanford Univ. Paleo. Type collection. 

 Photographed there.) 



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