526 A COLLECTION OF FISHES FROM SUMATRA. 



V 2 + 10 II, compressed, with rather coarse pricks on inner surfaces, and longest a 

 third longer than longest filaments, or one and three-quarters in eye. Pseudobran- 

 chise equal to longest gill-filaments. Isthmus compressed and with a rather shal- 

 low groove in front. 



Scales moderate, finely ciliated, those on middle of side a little large, sloping 

 up in inclined series above lateral line to upper profile, and below it in horizontal 

 series. Seven series of scales on cheeks. Scales on opercle, subopercle and inter- 

 opercle, largest on former. Two broad opercular spines, upper anterior. Opercular 

 flap blunt. Suprascapula with serrated edge. Small scales crowded along base of 

 spinous dorsal, and small patches elevated alternately. Small scales crowded on 

 bases of other vertical fins and well out between rays of soft dorsal and anal. 

 Caudal basally with small crowded scales, margin broadly and greater portions of 

 median rays bare. Small scales crowded at base of pectoral, and also extending 

 on bases of rays. Ventral naked and with a small pointed scaly flap at its base. 

 Lateral line a little convex in front, and inclined more or less straight till out on 

 median basal portion of caudal, running well up on caudal peduncle at first. 

 Scales in lateral line small and with a large concealed single tube. Patch of 

 oblique scales on upper side of head broad and high up. 



Origin of spinous dorsal about over that of pectoral, spines graduated to third, 

 second equal to eighth, first a trifle over half length of last, and margin of fin deeply 

 notched. First dorsal ray simple, about midway between origin of pectoral and 

 base of caudal, margin of fin straight, rounded behind, and first rays highest. Anal 

 inserted opposite base of second dorsal ray, second and third spines equal, first rays 

 longest, and base of rayed portion one and two-thirds in its height. Caudal emar- 

 ginate, pointed above and below. Pectoral rather small, pointed, and reaching a 

 little past anus, but not to anal. Ventral placed a trifle behind base of pectoral, 

 and ending in a short filament. Anus at tips of ventrals. 



Color in arrack deep brown above, lower surface silvery-white. Indistinct 

 dusky-brown lines obliquely up from lateral line, and rather narrow. Below latei-al 

 line a number of indistinct horizontal lines, fading out below. These also extend 

 on side of head and cheek, but indistinct at present. Caudal, with exception of 

 slightly paler posterior margin, deep blackish-brown. Dorsals, anal and pectoral 

 grayish-brown. Ventral pale orange, now much faded. Lower lip dusky. Iris 

 dull golden, with a brown blotch above. Peritoneum silvery. 



Length 7|^ inches. 



Type No. 27,596, A. N. S. P. Padang. 



One example. This species is related to Lutiamis argentifnaculatus (Forskal). 

 The uniform dark caudal and oblique and horizontal stripes in combination will 

 however distinguish L . furvicaudatus from this and other allied species. 



{Furvus, blackish-brown ; caudalus, tailed.) 



Subgenus GENYOROGE Cantor. 

 Genyoroge Cantor, Journ. As. Soc. Bengal (Cat. Malay. Fish.), XVIII, 1850, p. 12 {sebcs). 

 132. LuTiANUs CHiRTAH (Cuvier). 



