FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 781 



Scales 27 or 28 in lateral line (last 3 apparently on caudal base) ; 

 5 above, 3 below ; 12 around caudal peduncle. 



D. IV, 8, spine basally stout, without serrations, li/o in total head ; 

 A. Ill, 5, first branched ray about 2 ; least depth of caudal peduncle 2 ; 

 pectoral I14; ventral 1%; caudal about 2% in rest of body, well 

 forked. 



Above dark olive-green, with similar dorsal and caudal fins. Color 

 of back merges with sides to almost golden yellow or sides brassy, out- 

 line of each scale more or less dusky, also vertical dark bar or crescent 

 more or less evident at base of each scale. Belly white. Lower half 

 and imder side of head often nearly golden yellow. Paired fins and 

 anal pale yellow, with more or less hyaline tips. Length, 220 mm. 

 (Herre.) 



Mindanao, Philipi^ines, in the boiling outlet of Lake Lanao. 



Genus CEPHALAKOMPSUS Herre 



CephalaTcompsus Herre, Proc. Pan Pacific Sci. Congr., Australia, vol. 2, 1923, 

 p. 1568, 1924. (Type, Cephalakompsus pacJiycheilus Herre, ortbotypic.) 



Body oblong, elongate, laterally compressed, with rounded ab- 

 domen. Head large, wide, much longer than body depth. Snout 

 prominent, stout, clumsy. Eye rather small, advanced. Mouth 

 short, large, partly inferior, somewhat horseshoe-shaped. Maxillary 

 reaches % to eye. Both lips tliick, rugose, with continuous postlabial 

 groove parallel with lips, passing around mouth corner and across 

 chin. Upper lip strongly protractile, lower lip and jaw included. 

 Pair of rostral and maxillary barbels. Preorbital triangular, sub- 

 orbital very narrow. Interorbital broad, concave. Gill membranes 

 united with isthmus opposite middle of eye. Pharyngeal teeth 2, 3, 

 5-4, 2, 1, with pointed, irregular, hooked tips. Scales rather large, 

 with concentric striae. Lateral line complete, descends strongly be- 

 low dorsal origin then upward above anal until midway on caudal pe- 

 duncle, tubes simple. Dorsal with 8 branched rays and basal scaly 

 sheath, origin before ventral origin, fourth spine rather slender and 

 feebly denticulated. Anal with 5 branched rays. 



Known among related genera by the continuous groove behind the 

 lower lip, extending across chin as well as around mouth, large 

 clumsy head and snout, lack of sensory folds on head, and rather weak 

 and feebly denticulate dorsal spine. 



CEPHALAKOMPSUS PACHYCHEILUS Herre 



Cephalakompsus pacJiycheilus Herre, Proc. Pan Pacific Sci. Congr., Australia, 

 vol. 2, 1923, p. 1569, 1924 [type locality: Lake Lanao, Mindanao (no descrip- 

 tion)] ; Philippine Journ. Sci., vol. 24, p. 276, pi. 2, fig. 2 (type), p. 705, 1924 

 (reference). — Roxas and Martin, Dept. Agr. Comm. Manila Tech. Bull. 6, 

 p. 44, 1937 (reference). 



