FISHES OF THE PHILIPPINE AND ADJACENT SEAS 81 



Pomacentrus ater Lienabd, Dix Rap. Soc. Hist. Nat. Maurice, 1839, p. 34. 



Mauritius. — Sauvage, Hist. Nat. Madagascar, Poiss., 1891, p. 428 (on 



Lienaed). 

 Eupomacentrus atcr Bleekee, Verb. Akad. Amsterdam, vol. 18, No. 3, 1879, 



p. (2) 5, fig. Mauritius. 

 Pomacentrus megalops Li^nakd, Dix Rep. Soc. Hist. Nat. Maurice, 1839, 



p. 34 (Mauritius). — Sauvage, Hist. Nat. Madagascar, Poiss., 1891, p. 426 



(on Lienakd). 

 Pomacentrus analis Macleay, Proc. Linn. Soc. New South Wales, vol. 7, 



1882, p. 364. New Guinea. 

 Pomacentrus alexanderae Evekmann and Seale, Bull. Bur. Fisher., vol. 



26, 1906 (1907), p. 90, fig. 17. Bacon. 

 Prumacentrus nigromanus Webek, Sil)Oga Exp., vol. 57, Fische, 1913, p. 338, 



fig. 72. Amboina. 

 Pomacentrus violescens (not Bleekep.) Fowle», Proc. Acad. Nat. Sci. 



Phila., 1918, p. 43 (Philippines).— Fowler, Copeia, No. 58, June 18, 1918, 



p. 64 (Philippines). 



Depth 1% to 21/8 ; head 31/5 to 31/3, width 1% to 13^. Snout 3^8 

 to 4; eye 2% to 314, greater than snout, IV5 in interorbital, greater 

 than interorbital in young ; maxillary nearly or quite reaches eye, 3i/^ 

 to 3% in head; teeth uniserial, compressed, ends slightly rounded; 

 interorbital 3 to 3^/^, broadly convex; infraorbital edge with denticle 

 anteriorly and otherwise uneven or rough, or denticles very few ; hind 

 preopercle edge feebly denticulate. Gill rakers 8-|-15, lanceolate, 

 rather long. 



Tubes in lateral line 16 or 17, pores in straight section 7 or 8-j-l or 

 2; 4 scales above lateral line, 9 below, 21 or 22 predorsal scales; 3 

 rows of cheek scales, none on infraorbital. Scales with 6 to 8 basal 

 radiating striae; apical denticles 94 to 140, with 3 to 7 transverse 

 series of basal elements ; circuli very fine. 



D. XIII, 11, 1 or 12, I, thirteenth spine 1% to 1% in head, fourth 

 ray 1% to ly^ ; A. II, 14, i, second spine 1% to 1%, sixth ray 1^4 j 

 caudal peduncle depth l^g to 2; caudal 3% to 3i/j^ in combined head 

 and body; pectoral 3i/^ to 3V^; ventral 3^4 to 3%. 



Back dark umber to dusky brown, paler below or light brown, 

 sometimes whitish on under surface of head, breast, and belly. Iris 

 silvery white to brown or even dusky. Many examples are uni- 

 formly dark or dusky brown and the fins blackish. Usually in paler 

 forms si^inous dorsal duslry and all along upper edge of soft dorsal, 

 also lower anal edge. Many have paler caudal fins, gray to light 

 brown. Often paired fins pale or transparent or ventrals blackish, 

 but pectoral base always with a large blackish blotch, well defined 

 and axil of fin also black. 



Mauritius to East Indies and Okinawa. The most abundant species 

 of pomacentrid in our collections and very variable as to shade of 

 color. Dark or melanistic examples occur in equal abundance with 

 the pale forms. They are also found associated with a score or more 



