FISHES OP THE PHILIPPINE AND ADJACENT SEAS 



215 



(copied). — Herre, Philippine Journ. Sci., vol. 34, No. 4, Dec. 1927, p. 427, 

 pi. 3, fig. 2 (China Sea near Mariveles Point). 

 Acanthurus guttatus (not Schneider) Kittlitz, Mus. Senckenb., vol. 1, 1834, 

 p. 194, pi. 13, fig. 4 (Luganor, Carolines). 



Reddish-brown, with scattered blue dots on head and trunk. Ver- 

 tical fin blackish-brown. Dorsal and anal with blue edges. Reaches 

 114 mm. (Kittlitz). 



HEPATUS PHILIPPINUS (Herre) 



Acanthurus philippinus Herre, Philippine Journ. Sci., vol. 34, No. 4, Dec. 

 1927, p. 434, pi. 5, fig. 1. Calapan, Mindoro Island. 



Depth 2 to 2)4 ; head Z% to 3J4, width 1% to 1%. Snout 2 to 

 2r5"; eye 3 to 4, 13^ to 15^ in snout, 1 to 1^ in interorbital; teeth 





Fia. 11.— HEPATUS PHIUPPINUS (HeRBB) 



22 or 23 in each jaw; maxillary 4}^ to 43^ in head; interorbital 2}/^ 

 to 3, broadly convex; opercle and preopercle flange with vertical 

 striae or grooves. Gill rakers 6 + 10, short, flexible points. Scales 

 with extremely fine circuli; apical denticles 14 to 16, and 4 series of 

 low ones transversely as basal elements. 



D. IX, 24 or 25, ninth spine V/g to 2 in head; fourteenth ray 1}^ 

 to 134; A. Ill, 24 or 25, third spine 2% to 2ii, first ray l>g to 2; 

 caudal deeply lunate with long slender points, 2}i to 2% in combined 

 head and body; least depth of caudal peduncle 2}4 to 2% in head; 

 pectoral 3 to 33^8 in combined head and body; ventral 1^ to 134 in 

 head; caudal spine 21/^ to 33^. 



Easily known by its bright yellow caudal fin, well contrasted with 

 its general dark chocolate color. Iris olive-dusky. Dorsals, anals 

 and paired fins more or less dusky, latter with neutral or deep gray 

 tints, sometimes with olive tinge on pectoral basally. Reaches 

 220 mm. 



