PLEUROCENTIN^ 



307 



or double-truncate ; caudal peduncle generally a little longer than deep. Pale 

 brownish, the scales with or without dark edges ; sometimes some darker spots ; fins 

 mostly dusky. 



Type. — United States National Museum. No. 27121. 



Distribution. — Pacific coast of North America, from Alaska to San Francisco ; 

 in rather deep water. 



Specimens Examined : 



I (240 mm.}. 



3 {200-235 mm.). 



1 (232 mm.). 



2 (232, 245 mm.) 

 5 (200-255 ,, )■ 



1 (245 mm.). 



2 (148, 162 mm.) 

 2 (115, 185 ,, ) 

 I (227 mm.). 



I (140 „ ). 



Nanaimo, B.C. 



California. 



OB Central California, 77 fms. 



San Francisco. 



OfiE Avalon. 



Sta. Catalina. 



Pt. Reyes, Cal. 



Off Southern California, 36 fms. 



Clemens. 

 Stanford Univ. 

 U.S. Nat. Mus. 

 Eigenraann. 

 U.S. Nat. Mus. 



Eigenraann. 

 U.S. Nat. Mus 



A small species, rarely exceeding 10 or 12 inches in length. 



Genus 8. EOPSETTA. 



Eopsetta, Jordan and Goss, 1887, Rep. U.S. Com. Fish., xiii, (1885), p. 923 [Hippoglossoides jordani, 



Lockington] ; Norman, 1933, Ann. Mag. Nat. Hist., (10) xi, p. 220. 

 Xystrias, Jordan and Starks, 1904, Bull. U.S. Com. Fish., xxii, (1902), p. 623 [Hippoglossus 



grigorjewi, Herzenstein]. 



Close to Hippoglossoides, but with two series of teeth in the upper jaw, those of 

 the outer row larger than those of the inner, enlarged and forming distinct canines 

 anteriorly ; teeth of the lower jaw in a single series. Lower pharyngeals narrow, 

 scarcely approximated anteriorly ; each with an inner row of long, pointed teeth, 

 outside these an irregular series of smaller teeth, and on the edge a number of minute 

 teeth. Rays of dorsal and anal fins more or less scaled on both sides. Pectoral fin 

 of ocular side much larger than that of blind side ; middle rays branched. Scales 

 small, adherent, mostly ctenoid on ocular side, cycloid on blind side. Lateral line 

 nearly straight or with a curve of moderate height above the pectoral fin. Vertebrae 

 42 (10 + 32). 



Two species from the Pacific coast of North America and Japan. 



Synopsis of the Species. 

 I. Lateral line nearly straight or with a very low curve above pectoral ; depth 

 2 J to 2 J, head 3 to 3 J in length ; 45 to 52 scales between lateral line and 

 middle of back . . . . . . . . .1. jordani. 



II Lateral line with a distinct curve above pectoral ; depth 2f to 2f, head 3J 

 to nearly 4 in length ; 28 to 30 scales between lateral line and middle of 

 back ........... 2. grigorjewi. 



I. EOPSETTA JORDANI (Lockington). 



[California " Sole " ; Jordan's Flounder.] 



Hippoglossoides jordani, Lockington, 1880, Proc. U.S. Nat. Mus., iii, (1879), p. 73 ; Jordan and 

 Gilbert, 1881, Proc. U.S. Nat. Mus., iii, (1880), p. 454 ; Jordan and Gilbert, 1882, Proc. U.S. 

 Nat. Mus., iv, (1881), p. 67; Jordan and Gilbert, 1883, Bull. U.S. Nat. Mus., xvi, p. 827; 

 Jordan, 1884, Nat. Hist. Aquat. Anim. (Fisheries Fish. Indust. U.S., i). p. 187. 



