430 ■ PROCEEDINGS OF THE ACADEMY OF [May, 



2j in eye. Ppstorbital large, about as wide as postero-infraorbital. 

 Opercle narrow, inclined slightly forward, its width about 3f its depth. 

 Suborbitals, opercle, small marginal area of supraorbital, lower 

 limb of preopercle, exposed portions of shoulder-girdle, subopercle, 

 interopercle and lower or exposed portions of branchiostegals with 

 radiating striae. On suborbitals and opercle striae quite numerous 

 and fine, on lower limb of preopercle coarse and irregular, and quite 

 feeble on subopercle, interopercle and branchiostegals. Upper head 

 surface covered with smooth skin, and median occipital fontanel 

 moderate. 



Gill-opening forward about opposite front pupil edge. Rakers vi 

 2+7, compressed, rather weak, flexible, pointed, about 3 in filaments. 

 Latter 1^ in eye. No pseuclobranchise. Gill-membranes form 

 rather broad free fold over isthmus, latter well constricted in front 

 and broad behind, its surface slightly convex. Branchiostegals 4, 

 well compressed, upper rather long, and all rather broad. 



Scales small, cycloid, mostly disposed in series parallel with 1. 1.1 

 and becoming a little enlarged just after gill-opening and pectoral 

 base. Caudal base broadly covered with scales like those on caudal 

 peduncle. Anal base broadly scaly, and scales but little smaller than 

 those on trunk above. A concealed sagittate-shaped spine before 

 dorsal origin, apex directed towards occiput. Small broad-based 

 double spine before anal origin. No axillary scaly flaps to paired 

 fins. L. 1. complete, begins a little high at first, then slopes from 

 shoulder down to about opposite median axis, when straight to 

 caudal, also extending out on squamous area of latter. Tubes simple, 

 rather small, well exposed and not quite reaching across scale exposures. 

 Narrow median naked strip along predorsal edge, over which scales 

 do not pass and extending from occiput to dorsal. 



Dorsal origin trifle nearer caudal base than mandible tip, first 

 branched ray longest, falling well short of tip of last when depressed, 

 fin 1* to caudal base. Adipose fin inserted about midway between 

 eleventh dorsal ray base and caudal base, fin about 2 to latter. Caudal 

 broad, emarginated behind, lower lobe much larger and stronger, all 

 rays rather osseous. Anal inserted about opposite ninth dorsal ray 

 base, rudimentary rays well compressed, osseous and enlarged, third 

 longest, first branched ray strong and longest in fin, others graduated 

 down about first third in fin, after which all of about uniform length. 

 Pectoral inserted low, moderate, upper rays longest, reaches opposite 

 ventral origin in vertical. Ventral inserted a little before dorsal or 

 about midway between pectoral and anal origins in vertical, fin ly to 



