320 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



a^. Body with varied markings. 



c'. Head and body without black spots. 



dK Brown saddle over front half of caudal peduncle; 1 or 2 dark cross 

 bands on side; each caudal lobe with 6 or more oblique dark lines. 



luzonius. 

 (P. Large triangular reddish blotch at caudal base; dorsals each with 3 

 brownish horizontal bands; 6 dark bars across each caudal lobe. 



taeniopterus. 

 d^. Bright yellow median lateral band from eye to caudal; dorsals and 

 upper caudal lobe with alternate yellowish and blackish bands. 



moluccensis. 

 d*. Bright yellow band from eye to caudal and one from pectoral axil to 



caudal, which uniform sulphureus. 



d*. Four or 5 longitudinal yellow bands on sides; caudal with 4 to 6 

 oblique black bands on each lobe. 



e'. Scales 32 to 34 in lateral line to caudal base vittatus. 



e*. Scales 38 or 39 in lateral line to caudal base arge. 



c^. Head and body with black spots, also ventrals; first dorsal black with 

 pale spots; each caudal lobe with 4 to 6 oblique dark bars,, tragula 



UPENEUS CAERULEUS (Day) 



Upeneoides caeruleus Day, Proc. Zool. Soc. London, 1868, p. 194 (type locality: 

 Madras); Fishes of India, pt. 1, p. 121, 1875; Fauna Brit. India, Fishes, 

 vol. 2, p. 26, 1889. 



Depth 4 to 4K in total; head 4K to 5. Eye 3K in head, 1 in snout, 

 1 in interorbital ; maxillary reaches % in eye; barbels not quite reaching 

 opposite preopercle angle; teeth in fine villiform bands in jaws, single 

 row on vomer and palatines; interorbital flat; opercle with 2 spines. 



Scales ctenoid, none on preorbital; 32 to 34 in lateral line; 3 above, 

 7 below. Lateral line tubes rather long and bifurcate in first portion, 

 branches subsequently short and mostly spring from its upper side. 



D. VII-8 or 9, first spine minute or wanting, longest equals head 

 behind eye center of % body depth; A. 7; caudal forked; ventral 

 reaches halfway to vent, but not quite so long as pectoral. 



Leaden above, dirty white below. First dorsal with black tip, 

 whitish band along center and badly marked one at base. Second 

 dorsal dark with light band along center. Caudal ends stained black 

 and black band across upper lobe. Paired fins and anal yellowish. 

 Length, 100 mm. (Day.) 



India. Apparently close to Upeneus vittatus, but difters in plain 

 coloration of body. 



