10 PHILIPPINE POMACENTRID^B 



opercular bones very long. Teeth in a single semes, small and 

 conical. Dorsal fin continuous, even or notched, with 9 to 11 

 spines. 



Brightly colored pomacentrids, occurring from the Red Sea 

 and east coast of Africa through the seas of India to the Malay 

 Archipelago and western parts of the Pacific. 



Key to the Philippine species of Amphiprion. 



a\ Dorsal fin nearly even, not notched, the posterior spines not very much 



lower than the anterior rays. 



ft 1 . Body with three distinct pearl white crossbands; caudal lunate. 



A. polymnus. 

 b*. Body with a single transverse band; caudal rounded in the young 



and subtruncate in the adult A. frenatus. 



a 2 . Dorsal fin deeply notched, the posterior spines very much shorter than 



the middle or some of the anterior ones. 

 e 1 . Interorbital space naked. 



d 1 . Caudal markedly rounded; body with three permanent crossbands. 



A. percula. 



<F. Caudal subtruncate; body with three vertical bands which vary 

 relatively in size with age, the last one disappearing almost 



entirely A. bifasciatus. 



c-. Interorbital space scaly. 



e 1 . A pearl white vertical band across the opercles A. perideraion. 



e*. No pearl white vertical band on the opercles A. akallopisos. 



AMPHIPRION POLYMNUS (Linnaeus) 



PLATE 1, FIG. 1 



Perca polymna LINNAEUS, Syst. Nat. ed. 10 1 (1758) 291. 

 Amphiprion polymnus BLOCK and SCHNEIDER, Syst. Ichth. (1801) 203; 



CUVIER and VALENCIENNES, Hist. Nat. Poiss. 5 (1830) 297; BLEEKER, 



Nat. Verh. Roll. Maats. Wet. 2 (1877) 28; JORDAN and SNY'DER, 



Proc. U. S. Nat. Mus. 24 (1902) 598; JORDAN and SEALE, Proc. 



Daven. Acad. Sci. 10 (1905) 13, pi. 7; WEBER, Fische der Siboga 



Exped. (1913) 336. 

 Prochilus polymnus BLEEKER, Atlas Ichth. 9 (1878) pi. 400, figs. 7 



and 8. 

 Amphiprion chrysopterus CUVIER and VALENCIENNES, Hist. Nat. Poiss. 



5 (1830) 301; GUNTHER, Cat. Fishes 4 (1862) 8; JORDAN and 



DICKERSON, Proc. U. S. Nat. Mus. 34 (1908) 611, fig. 4. 

 Amphiprion japonicus SCHLEGEL, Fauna Japonica (1846) 66. 

 Amphiprion chrysargurus RICHARDSON, Ichth. China (1846) 254. 

 Amphiprion boholensis CARTIER, Verh. Phys. Med. Ges. Wiirzburg 



(1873) 96. 

 Amphiprion ephippium GUNTHER, Fische der Siidsee 2 (1876) 224, 



pi. 122, figs. D and C. 

 Amphiprion snydtri ISHIKAWA, Proc. Dept. Nat. Hist. Tokio Nat. 



Mus. 1 (1904) 11, pi. 5. 



