AMPHIPRION 9 



both equally well developed; anal with two spines, the soft por- 

 tion similar to the rayed dorsal; both dorsal and anal scaly at 

 base, sometimes the spinous dorsal naked; ventral thoracic, 

 with a single spine and five rays, the outer rays longest and 

 more or less produced into filaments. Branchiostegals 5 to 

 7; gills 3^; pseudobranchiae and air vessel present; pyloric 

 appendages few. Vertebrae 12 + 14 = 26. 



Marine fishes chiefly from the tropical seas of the Indian 

 and Pacific Oceans, with several representatives from the West 

 Indies, and a few from Japan and the Mediterranean Sea. 



Key to the Philippine genera of Pomacentridse. 



o\ Scales small, 45 to 72 in lateral series. 



6\ Orbital ring serrated Amphiprion. 



6*. Orbital ring not serrated but armed with two very strong spines. 



Premnas. 

 a 1 . Scales large or moderate, not more than 30 in lateral series. 



c*. Teeth conical; caudal fin with two or more free spines on each margin 



of base. 

 cP. Hind edge of preopercle serrated. 



e l . Teeth in a villiform band; dorsal spines 11 or 12 Dascyllus. 



e*. Teeth in a double series; dorsal spines 16 or 17.... Acanthochromis. 



d'. Hind edge of preopercle entire Chromis. 



c*. Teeth compressed; base of caudal fin without any free spines. 

 f. One or more of the opercles serrated. 



1 . Preopercle only and, generally, the orbital ring serrated. 



h\ Lips thick, swollen, and completely reversed outward around 



mouth Cheiloprion. 



h*. Lips not as above Pomacentrus. 



g\ Opercles excepting the interopercle serrated; orbital ring entire. 



Daya. 



f. None of the opercles serrated. 

 f. Teeth in a single series. 



f. Gill rakers very numerous, over 70 present on first arch. 



Hemiglyphidodon. 



f. Gill rakers few, about 28 or less present on first arch. 



Abudefduf. 

 t*. Teeth in a double series Chrysiptera. 



Genus AMPHIPRION Bloch and Schneider 



Amphiprion BLOCH and SCHNEIDER, Syst. Ichth. (1801) 47, 200; 



ephippium. 

 ProchUus (Klein, Piscis Missus 5: 60, nonbinomial) , BLEEKER, Nat. 



Verh. Holl. Maats. Wet. 2 (1877) 20; ephippium. 



Body oblong, compressed, covered with small roughish scales, 

 about 45 to 60 in a longitudinal series; lateral line ending 

 under the posterior end of soft dorsal. All the opercles and the 

 orbital ring serrated, the denticles on the opercular and sub- 



