310 JORDAN & SNYDER I NINE NEW SPECIES OP 



Museum, Tokyo. Locality, Misaki. This species is allied to 

 Beinhardtius hippoglossoides, the Greenland Halibut, differing 

 in the larger scales and in other characters. It is named for 

 Mr. K. Matsuura, Curator of fishes in the Imperial Museum 

 at Tokyo. 



8. Trachypterus ishikawse Jordan and Snyder, new species. 

 (PL XVII., fig. 10). 



Head 9 Y2 in length; eye 3 y.j in head; snout 2 7;,; 

 maxillary 3 Vs ; D. 100. 



Preorbital very wide, radiate, rugose. Body gradually 

 tapering backward, not constricted behind vent ; its depth about 

 equal to length of head. Vent a little before middle of body, 

 teeth Ö to 7 on each side of jaws ; the middle one longest. 

 Lateral line running low along body ; its pores with spines. 

 Ventral edge of body with tubercles throughout ; larger and 

 rougher behind ; a number of hooked spines in pairs along lower 

 part of tail ; body otherwise smooth. First spines of dorsal short 

 and slender, not separated or elevated ; those near middle of fin 

 much higher ; 1 ^4 in head. Pectorals 2 in head. Fin rays 

 smooth. Color silvery throughout ; no spots. 



Described from a large specimen 1210 mm. long, nearly 

 perfect but having the ventrals worn off showing only the basal 

 bones at place of insertion, and the caudal lobe broken. The 

 latter when entire probably measured 2 '/^ to 3 Vs in head. 



Type no. 589, Imperial Museum, Tokyo. Locality, off mouth 

 of Tokyo Bay, between Misaki and Boshu. It is named for Dr. 

 Chiyomatsu IsHiKAWA Curator of the Imperial Museum and 

 Professor in the College of Agriculture in the Imperial University 

 of Tokyo. 



