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PROCEEDINGS OF THE NATIONAL MUSEUM. 



between eyes ; latter hall length of post orbital part of head, looking 

 upward and outward; interorbital space very narrow, concave. 

 Tongue small, free, its tip rounded. Teeth all minute, the outer in 

 jaws slightly enlarged; teeth present in pharynx; upper jaw with a 

 pair of oval patches at symphysis, extended along anterior half as a 

 single row; lower jaw similar; outer teeth very slightly enlarged. 

 Vomer with a few small teeth. Koof of mouth with widely set, 

 minute papillae. 



Scales absent on head, nape and above pectorals, and in gradually 

 narrowing area to below first ray of soft dorsal, and thence in a narrow 

 line along dorsal base to caudal; upper edge of caudal peduncle thus 

 left naked; pectoral base, breast and caudal base also naked. Dorsal 

 surface of head, suborbitals and snout thickly dotted with pores ; espe- 

 cially large ones at upper angle of gill slit, on mandible and preoper- 

 cular limbs ; those of lateral line in double row anteriorly, frequently 



Fia. 1.— Gnathtpops itoxis JOROAJf AND Thompson; from the type. 



single posteriorly. Lateral line extending along 'base of dorsal to 

 eighth soft ray, discontinuous, however, on one side. 



Dorsal fin continuous, last dorsal spine but slightly lower than first 

 ray ; spines subequal tliroughout ; soft rays longest posteriorly. Anal 

 similar to soft dorsal, inserted opposite its first ra}^. Caudal rounded, 

 as is pectoral. Ventrals with two simple, somewhat elongate rays. 



Color plain, olivaceous, save for a large oval black spot narrowly 

 margined with white between fifth and eighth dorsal spines, and a 

 deep black spot on inner side of maxillary tip on membrane con- 

 necting it with mandible. Spinous dorsal narrowly edged on rays 

 with white, on membranes with dark. Scales with darkened mar- 

 gins, save on belly. Dorsal surface of head dusky. Pectorals, ven- 

 trals, caudal, and anal colorless. 



This species is readily known from the other Japanese species, 

 Gnathypops liopTcinsi and G. evermanni by the naked area above the 

 pectorals, by the much smaller outer teeth, by the peculiar coloration 

 and the measurements. 



