NO. 1213. A LIST OF JAPANESE FISHES— JORDAN AND SNYDER. 373 



TRIFISSUS Jordan and Snyder, new genus. 



The genus Trifissu.s difl'crs from Trinnophoi-H-Jdliys in li;i\ iii<;- canine 

 teeth, one on each side of the lower jaw posteriorly. 



Diagnosis of Trijixxi(>< new genus. 



Type, T/'l/i.ssus /otu/'us, new species. 



Body rather elongate; caudal peduncle, deep; head wide; snout 

 ]>lunt; mouth somewhat oblique; premaxillary extending to a \'ertical 

 through anterior edge of pupil; jaws equal, with a row of movable, 

 trilobed teeth, followed ])y small, simple ones; lower jaw with a dis- 

 tinct, curyed canine on each side, posterior to the trilobed teeth. Body 

 with small ctenoid scales; nape and posterior part of head with scales; 

 interorbital area, snout, cheeks, and under part of head naked. Dorsal 

 fins not connected, the first with six spines. Ventrals united, free 

 from belly. 



TRIFISSUS lOTURUS Jordan and Snyder, new species. 

 (Plate XVIII.) 



Ti/jje.—^o. 49403, U.S.N.M. 



Locality. — Bay of Tokyo, Japan. Collector, K. Kishinouye. Japa- 

 nese name, Shlmakaze (striped goby). 



Description. — Head, 3| in length; depth, 4i; depth of caudal 

 peduncle, 6|; eye, 4 in head; snout, 4f; interorbital space, 8; height 

 of longest dorsal spine, 7 in length, ray, 7; longest anal ray 7i; length 

 of pectorals, 3i; yentrals, 4|; caudal, 4^; number of dorsal spines, 6; 

 rays, 13; anal, 12; scales in lateral series, 54; in transverse series, 

 between origin of soft dorsal and anal. 



Head wide and Hat, its width contained one and a half times in its 

 length; interorbital space, convex. Snout blunt. Mouth slightly 

 oblique; jaws equal; premaxillary extending to a vertical through 

 anterior edge of pupil; lips thick. Upper jaw with a row of is long, 

 flat, trilol)ed, movable teeth, ])ehind which is a row of small, sharp, 

 simple teeth; lower jaw with 20 trilobed teeth, followed by a narrow 

 band of simple, sharp, curved ones; each side of lower jaw with 

 a small, curyed canine. Gill-rakers short, pointed. Body covered 

 with small, ctenoid scales, large posteriorly, smaller anteriorly, extend- 

 ing forward on nape and top of head to within a short distance — 

 al)out the diameter of pupil — of the edge of orbits; other parts of 

 lunid naked; without ])arbels. Dorsal fins not connected; third spine 

 longest; others gradually shorter; rays, except first and last, of al)out 

 the same length. First ray of anal short, simple; others gradually 

 longer. Soft dorsal and anal projecting an equal distance posteriorly. 

 Caudal roimded. Pectoral somewhat pointed, extenting posteriorly 

 as far as tip of depressed dorsal. ViMitrals not adherent to helh; their 

 length equal to distance from center of pupil to edge of opercle. A 



