FISHES OP THE PHILIPPINE AND ADJACENT SEAS 279 



-J^aseus (A^phurus) lituralus Klunzinger, FischeRoth. Meer., 1884, p. 87. 

 Naso lilmaius Herre, Philippine Journ. Sci., vol. 34, No. 4, Dec. 1927, p. 



464, pU 16, fig. 1 (Olongapo, Balayan Bay, Bulalacao Bay, Elefante, 



Tablas, Ibahay, Bantayan, Manila, Sibuyan; Guam). 

 Aspisicrus elegans Ruppell, Atlas Reise nordl. Afr. Fische, 1828, p. 61, pi. 



16, fig. 2. Northern Red Sea. 

 Monioceros ecornis (Ehrenberg) Ruppell, Atlas Reise nordl. Afr. Fische, 



1828, p. 61 (name in synonymy). 

 Monoceros garrettii Se.\le, Occas. Papers Bishop Mus., vol. 1, No. 3, 1900, p. 



112. Guam. 



Depth 2% to 33^; head 3% to 3^, width 2 to 2}^. Snout IJ^ to 

 1% in head from snout tip; eye 3J^ to 5, 2}i to V/^, in snout, 1 to 1% 

 in interorbital ; teeth 32 to 34, 26 to 28 in young, compressed, ends 

 rounded; maxillary 33^^ to 434 in head; interorbital 33/^ to 3%^ 

 broadly convex. Gill rakers 4 + 9, compressed, short, triangular. 



Skin finely roughened or asperous, rough velvety to touch; young 

 also finely asperous. 



D. VI, 28, 1 or 29, i, first spine IJ^ to 23^^ in head, first ray 2% to 

 2%; A. II, 28, I to 30, i, second spine 3 to 33^^, first ray 33^ to 4; cau- 

 dal emarginate, in young upper lobe little longer, with age uppermost 

 and lowermost rays end in filament above and below, 1% to 3% in 

 combined head and body; least depth of caudal peduncle 4 3^ to 5 in 

 head; pectoral 1% to 13^; ventral 1^ to 2; caudal peduncle with 2 

 bony bucklers, each with compressed, curved, broad, pointed spine 

 directed forward, base of first buckler 5 to 8. 



Dull uniform brown, scarcely paler below. Yellow line from lower 

 eye edge forward, then down behind maxillary and upward along 

 lower edge of preopercle. Iris brown, with yellowish ring around 

 pupil. Bucklers pale yellowish. Dorsals and anals neutral blackish, 

 each with buff border, upper more brilliant and lower or anal border 

 broader. Caudal brown like body, hind edge whitish. Paired fins 

 largely dull brown or with olivaceous tinge on pectoral. 



Red Sea, East Africa, Mauritius, East Indies, Philippines, Melanesia, 

 Micronesia, Polynesia, Hawaii. A very well marked species, easily 

 distinguished by the absence of a frontal horn or hump and its 

 variegated or rather brilliant colors. 



8119, 16067. Alimango Bay, Burias Island. March 5, 1909. Length 157 to 

 368 mm. 



8633. Biri Channel. June 1, 1909. Length 237 mm. 



8725. Caracaran, Batan Island. June 8, 1909. Length 264 mm. 



5377. Cebu market. April 5, 1908. Length 159 mm. Body and head dull 

 blackish-green, lighter on belly. Area of oil green over and behind eye. Lips 

 dull carmine. Two round orange spots on caudal peduncle. Light blue along 

 back at base of dorsal. Dorsal jet black, color gradually shallower until at 

 last rays involving half of fin, anteriorly extending enti.-e depth; median nar- 

 row gray line, terminal zone buff and very narrow black edge. Anal olive at 

 base, then broad poppy red band which dusky basally and narrow dark blue 

 marginal line, also with very narrow marginal line of pale blue. Caudal black. 



