202 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



to 33^ in head; interorbital 2y^ to 3, convexly elevated; opercle and 

 humeral arch with rather fine striae. Gill rakers 9 + 16, short, slenders 

 points, often clavate. 



Scales discoid, narrowly imbricate, cu*culi very minute; apical den- 

 ticles 44 to 48, with 5 to 13 transverse series usually developed as 

 distinct cusps. 



D. IX, rarel}^ VIII, 27, i or 28, i, last spine IJ/g to 2 in head, six- 

 teenth ray IK to 1%', A. Ill, 21, i to 25, i, third spine 2}/^ to 2%, 

 nineteenth ray 1>^ to 1%; caudal deeply emarginate to lunate, lobe 

 sharply pointed though only moderately extended, 3 to 3^ in com- 

 bined head and body; least depth of caudal peduncle 2)4, to 2% in 

 head; pectoral 2?^ to 31-^ in combined head and body; ventral \}/^ 

 to 13^ in head; caudal spine 33^ to 4^4 . 



Pale reddish to chocolate brown, Avith numerous longitudinal waved 

 or regular narrow lines on trunk and tail. Numerous small pale or 

 whitish spots on head and breast often present. Sometimes several 

 blue lines on dorsal and anal. 



Red vSea, Zanzibar, Natal, Madagascar, Mauritius, Rodriguez, 

 Ceylon, Andamans, East Indies, Philippines, Formosa, Japan, Mela- 

 nesia, Micronesia, Polynesia, Hawaii. A very abundant species in 

 the coral reefs. Herre contends Ctenochaetus striatus (Quoy and 

 Gaimard) is distinct, with lower body or depth 2}/^ to 2%, and 9 to 

 11 longitudinal bluish white stripes and no spots on the side of the 

 head. 



8151, 8959, 8961, 15156. Alibijaban Island, Ragay Gulf, Luzon. March 6, 1909. 

 Length 177 to 240 mm. Five examples. 



15689, 15690, 17760. Alimango Bay, Burias Island. March 5, 1909. Length 

 168 to 195 mm. Five examples. 



10346. Atulayan Island. June 18, 1909. Length 113 mm, 



7731. Baganga Bay. May 13, 1908. Length 210 mm. 



8963. Between Paron Point and Jesus Point, Gulf of Luzon. June 21, 1909. 

 Length 218 mm. 



9488. Bolalo Bay, Palawan Island. December 21, 1908. Length 200 mm. 



8341, 8346, 15628. Buang Bay, Talajit Island. March 15, 1909. Length 185 to 

 275 mm. Orange spots covering front of head, side under eye, running back- 

 ward into nuclial region somewhat. Dorsal and anal with orange stripes or 

 bars, body stripes as usual. 



4626. Bubuan Island. February 14, 1909. Length 185 mm. 



12205. Bugsuk Island, Balabac. January 5, 1909. Length 225 mm. 



5625. Busin Harbor, Burias Island. April 22, 1908. Length 245 mm. 



17699. Busin Harbor. March 8, 1909. Length 152 m,m. 



9343, 9346. Cagayan, Sulu Island. January 8, 1909. Length 146 to 200 mm. 



7849, 7861, 9444, 9445, 9447, 12928. Candaraman Island, Balabac. January 4, 

 1909. Length 140 to 193 mm. 



8028. Capulaan Bay, Luzon. February 24, 1909. Length 225 mm. 



11853. Caracaran, Batan Island. June 8, 1909. Lengtli 133 mm. 



11793. Canmahala Bay, Ragay Gulf. March 11, 1909. Length 195 mm. 



12255, 12570. Caxisigan Island. January 2, 1909. Length 158 to 219 mm. 



7672, 5711. Cebu market. April 4, 1908. Length 165 to 200 mm. 



