548 A COLLECTION OF FISHES FROM SUMATRA. 



SCORP-<ENIDvE. 



227. Sebastopsis polylepis (Bleeker). 



228. ScoRP.'ENOPSis oxYCEPHALA (Bleeker). 



229. Pterois lunulata Schlegel. 



NOTOTHENIID^. 



230. Parapercis atromaculata sp. nov. Plate XVIII, lower figure. 



Head 3|- ; depth at origin of spinous dorsal about 7 ; D. V, 21 ; A. I, 16 ; P. i, 

 16; V. I, 5; scales about 60 in lateral line, last 5 on base of caudal; scales 5 

 obliquely back from origin of spinous dorsal to lateral line, and 14 ^ between latter 

 and origin of anal; width of head 1-| in its length; depth of head 24; mandible 

 2yL; snout oJg- in head from its tip; eye 4; maxillary 21; interorbital space 13 ; 

 third dorsal spine 4-|; third dorsal ray 2-1- ; third anal ray 2-| ; least depth of caudal 

 peduncle B^; caudal 1-|; pectoral 1-|; ventral 1-|. 



Body elongate, subcylindrical at first, and becoming compressed above anal fin. 



Head broad, and upper profile but slightly convex. Snout rather long and 

 broadly depressed, with a convex surface, though pointed in profile. Eye high, 

 directed upward, impinging on upper profile and a little elongate. Mouth large, 

 superior, and mandible projecting. Maxillary reaching anterior rim of orbit. Lijjs 

 thick. Teeth forming inner bands in jaws minute. An outer series of irregularly 

 enlarged slightly curved canines also in each jaAv. A small patch of vomerine 

 teeth, none on palatines. Tongue elongate, rather slender, free in front, and its tip 

 slightly rounded. Nostrils small, separated, anterior in a short cutaneous tube, 

 and posterior a short round pore. Interorbital space narrow and flattened. Opercle 

 with two short strong spines, lower anterior. 



Gill-opening carried forward till about opposite posterior rim of eye ? Rakers 

 6 -f 12, short thick rudiments. Filaments about two-fifths of horizontal orbital 

 diameter. Pseudobranchise a little smaller. 



Scales mostlv ctenoid, those in front of ventrals smooth. Scales on head 

 small, especially those on cheek. Interorbital space, snout, li^^s, interopercle, and 

 under surface of head naked. Small scales on basal portions of caudal and pec- 

 toral fins, and also extending out quite a distance on both upper and lower rays of 

 former. Lateral line rather high at first, then descending posteriorly and running 

 along middle of side of caudal peduncle and out on base of caudal. Tubes simple. 



Dorsals continuous, spinous fin inserted well behind origin of pectoral, and 

 third spine highest. Soft dorsal inserted a trifle nearer origin of pectoral than that 

 of anal, fin of more or less even height, and margin more or less deeply incised 

 above between each ray. Anal similar, caudal slightly rounded, corners forming 

 angles. Pectoral reaching vent, and lower median rays longest. Ventral pointed, 

 reaching anus, and first ray distinctly longer than innermost. Anus near anal. 



Color in arrack dull brown, darker above, with a pale broad lateral band of ten 

 oblong small blotches of pale brown extending from humeral region to base of 

 caudal a little superiorly. Dark brown separating pale oblong areas continued 



' My figure shows but nine on account of the flattened surface of anal region at this point. 



