182 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



advance of upper; gillrakers rather wide set, lanceolate, and not quite 

 as lon*»- as eye. 



Orijj-in of dorsal opposite front of or))it; dorsal terminating at a 

 distance from caudal equal to three-fourths of the depth of the free 

 portion of the tail, its longest ra3's at posterior one-third of tin, nearly 

 as long as pectoral, and contained 2^ in head; caudal subtruncate or 

 rounded; scales ciliated: maxillary and interorbital space scaly poste- 

 riorly; tin rays scaly. 



Color brownish gray; head, l)ody, and pectoral tins sprinkled over 

 with brown dots. (Giinther, from specimens 10 inches in length from 

 Chifu (Chefoo), China.) 



This species is not known to us. 



(;rfp/c7/, perch; Ke4>a\t}.^ head.) 



6. XYSTRIAS Jordan and Starks. 



Xystrias Jordan and Stakks, Bull. U. 8. Fish Com., XXII, 11)02 (1904), p. 623 

 {(/rigorjeu'i). 



Form of Ilippoglossoides. — E3^es and color on the right side. 

 Lateral line with a low arch in front; mouth rather large; the teeth 

 rather small, in two rows; gillrakers long and slender; scales of eyed 

 side tinely ctenoid, those of blind side smooth. One species, a large 

 flounder of Japan, 



{^vffry'jp^ a raker; from the long gillrakers.) 



14. XYSTRIAS GRIGORJEWI (Herzenstein). 

 MIZUKAREI (WATER FLOUNDER). 



Hippoglossus grigorjewi Herzenstein, Bull. Ac. Sci. Imp. Petersb., 1890, p. 134 

 (Hakodate). 



Xystrias grigorjewi Jordan and Starks, Bull. U. S. Fish Comm., XXII, 1902 

 (1904), p. 624 (Suruga Bay). 



Hippoglossoidcs s]>. Otaki, Jouni. Fisheries Bureau, 1897, p. 2, pi. v, fig. 1 (South- 

 eastern Japan) . 



Verasper otakii Jordan and Snyder, Proc. U. S. Nat. Mus., 1900, p. 378 (Tokyo 

 from Otaki's specimen); Check-List, p. 121, 1901. 



Head, 3f in length; depth, 2^^; dorsal, 80; anal, 6S; scales, 92, on 

 blind side, 98; lower orbit, 1 in head; snout, 5^; maxillary, 2^; width 

 of interorbital space, 6 in diameter of eye; height of longest dorsal 

 rays, 2| in head; anal rays, 2f ; rays of right pectoral, If; ventral, 3^; 

 pectoral, 11. 



Body dextral, dorsal outline a little more convex- than ventral. 

 Mouth wide, oblique; outline of gape strongly curved; maxillar}- 

 reaching a vertical from posterior edge of pupil; symphvseal knob 

 small. Teeth of both jaws small, growing larger anteriorly, those of 

 upper jaw in two series, the inner ones small, the outer larger and 

 canine-like; teeth of lower jaw in a single series; gillrakers 6 + 17, rather 



