72 BULLETIN" 10 0, UNITED STATES NATIONAL MUSEUM 



origin; posterior half of back up over squamation of spinous dorsal 

 posteriorly and all of greater basal portion of soft dorsal black. On 

 back area broadly bordered whitish; also border forms on outer 

 portion of soft dorsal, which pale, edge of which with blackish line 

 and also another submarginal. Soft anal broadly bordered white ^ 

 though with brown submarginal line only in smaller examples. 

 Caudal with pale border all around, median rays with brownish. 

 Paired fins pale brown. 



Cocos Islands, East Indies, Melanesia, Polynesia. Known among 

 all chaetodonts by the striking and contrasted black of the back 

 posteriorly. It presents little variation. 



8947. Between Paron and Jesus Points, Albay Gvilf, Luzon. June 21, 1909. 

 Length 176 mm. 



8349. Buang Bay, Talajit Island. March 15, 1909. Length 220 mm. 



A585. Busbus Point, Siasi Island. September 20, 1909. Length 196 mm. 



9658. Cagayan, Sulu Island. January 8, 1909. Length 150 mm. 



1247. Candaraman Island. January 4, 1909. Length 132 mm. 



1024. Capunuypugan Point. May 10, 1908. Length 143 mm. 



12483. Endeavor Strait. December 23, 1908. Length 172 mm. 



225. Endeavor Strait. December 24, 1909. Length 150 mm. 



9019. Langao Point, Lu/.on. June 24, 1909. Length 167 mm. 



6026 and 6027. Little Santa Cruz Island. May 28, 1908. Length 200 to 205 mm. 



4739. Maricaban Island, Luzon. January 20, 1908. Lengtli 200 mm. 



6237, 6238, 6274. Medio Island, Gnlera Bay, Mindoro. June 9, 1908. Length 

 195 to 220 mm. 



8059. Mompog Island. March 3, 1909. Length 216 to 222 mm. Two examples. 



8880 and 8881. Near Palag Bay, Luzon. June 16, 1909. Leugth 186 to 159 mm. 



732S and 7329. Pandan Island near Sablayan Bay, Mindoro. December 12, 1908. 

 Length 183 to 195 mm. Back anteriorly greenish yellow, horizontal stripes 

 below pale purple, not continued to anal base. Pale purple in bar above pec- 

 toral base and blotch under eye. Very short black ocular bar above eye. 

 Orange bar at pectoral base. Snout, lower head and breast cadmium orange 

 to sulphur below. Tips of dors-al spines pale lemon, color continued on rays 

 and on produced rays; edge of vertical portion of soft dorsal black resting on 

 inframarginal bar of hyaline white near third diameter of pupil; below this very 

 narrow black line and broad dusky scarlet orange bar which extends triangu- 

 larly into produced portion and well along lower half of produced rays. Anal 

 whitish on basal portion, spines and edge of soft fin bright yellow with narrow 

 submarginal orange bar. Caudal base scarlet, color extending forward on lower 

 portion of caudal peduncle and as orange along caudal edges, tip or edge of 

 fin orange and rays with narrow black line each side. Pectoral dusky hyaline. 

 Ventral lemon yellow. 



10387 and 10389. Port Jaraelo, Luzon. July 13, 1908. Length 157 mm. 



7036 and 7047. Port San Pio Quinto, Camiguin Island. November 10, 1908. 

 Length 192 to 222 mm. 



8781. Quinalasag Island. June 12, 1909. Length 171 mm. 



651. Rapurapu. June 22, 1909. Length 140 mm. 



6908 and 6909. Santo Domingo, Batan. November 7, 1908. Length 202 to 

 217 mm. 



7853. Taganak Island. January 7, 1909. Length 195 mm. 



