NO. 1581. FISHES OF JAPAN— JORDAN AND RICHARDSON. 631 



Head 2.4 in length without caudal; depth 6.5; depth of head 3 in 

 its length; width of head 1.9; eye 3.6; interorbital space 5 in eye; 

 maxillary 2.5 in head; nose 3.3; D. I-VII — 11; A. 11; scales 54; 

 first 2 or 3 scales of lateral line with short spines. 



Head rough, angular; superorbital and suborbital ridges finely 

 serrated for their entire length; a stout spine in front of each orbit; 

 top of head with low spines; opercular, scapular, and humeral spines 

 sharp; preopercle furnished posteriorly with 3 spines, the upper spine 

 strong, reaching to the opercular margin; a stout curved spine on the 

 inferior face of the preoperculum, directed forward ; opercular mem- 

 brane under preopercular spines entire; eye without tentacle or cirrose 

 lappet; jaws with broad bands of villiform teeth; vomerine and pala- 

 tine bands with many of the teeth sharp and longer than the rest, 

 canine-like; tongue convex at tip. 



Spinous dorsal slightly lower than soft dorsal, the longest spine 2.75 

 in head; anal inserted under third ray of soft dorsal; pectorals 2 in 

 head; ventrals 1.75; caudal rounded behind, squarish at upper and 

 lower corners. 



Fig. 1. — RoGADius asper. 



Color in spirits grayish brown, tinged with purplish; back obscurely 

 banded with dusky; spinous dorsal mottled in the meml^ranes; soft 

 dorsal with spots on the rays, forming rows; caudal indefinitely cross- 

 banded and mottled with dusky; upper pectoral rays specked with 

 dusky; lower half of pectorals blackish with an outer whitish edge; 

 ventrals pale toward base, blackish outwardly, with a narrow pale 

 margin; anal pale. 



Here described from a single specimen, 5f inches long, taken at 

 Swatow, China. It was not found by Jordan and Snyder in Japan. 



{asper, rough). 



2. THYSANOPHRYS Ogilby. 



Thjsanophrys Ogilby, Proc. Linn. Soc. N. S. "W., 1898, XXIII, p. 40 (cirronasus). 

 Insidiator Jordan and Snyder, Proc. U. S. Nat. Mus., XXIII, 1900, p. 368 



(rudis^meerdervoortii) . 

 Gravimoplites Fowler, Journ. Ac. Nat. Sci. Phila., XII, 1904, p. 550 (scnber). 



Head broad and much depressed, although less so than in Platy- 

 ephalus, well armed with spines and serratures; angle of preopercle 



