FAMILY POMACENTRIDAE — ^WOODS AND SCHULTZ 113 



POMACENTRUS PAVO (Bloch) 



Plate 88, D 



Chaetfldon pavo Bloch, Naturgeschichte der aiislandischeu Fische, pt. 3, p. 6, pi. 



198, 1787 (type locality. East Indies). 

 Pomacentrus pavo Kendall and Goldsborough, Mem. Mus. Comp. Zool., vol. 



26, p. 295, 1911 (Tari Tari, Gilbert Islands, 2 specimens studied). 



SPECIMENS STUDIED 

 Bikini Atoll: 1 station, 12 specimens, 34 to 61 mm. in standard length. 

 Rongelap Atoll: 1 station, 3 specimens, 38 to 57 mm. 



Description. — Dorsal rays XIII, 13 (rarely 14); anal 11,13 (rarely 

 14) ; pectoral ii,14 to 16 (usually 15) ; transverse scale rows from upper 

 edge of gill opening to base of caudal rays 27 to 29, with 3 between 

 lateral line and origin of dorsal, 9 or 10 between lateral line and origin 

 of anal; upper part of lateral line with 16 to 18 tubular scales; gill 

 rakers 7 + 1 + 14. 



Depth of body, 2.3 to 2.5; length of head 3.3 to 3.6; both in standard 

 length. Snout 4.4 to 4.9; eye 2.7 to 3.4; preorbital width 10.6 to 17.0; 

 length of upper jaw 3.2 to 3.4; postorbital part of head (liind margin 

 of eye to upper edge of gill opening) 2.2 to 2.6; intcrorbital width 3.4 

 to 4.1; depth of caudal peduncle 1.9 to 2.1; length of pectoral fin 1.1 

 to 1.2; of pelvic fin 0.9 to 1.0; of 13th dorsal spine 1.8 to 2.0; of upper 

 caudal rays 0.6 to 0.7; of lower caudal rays 0.7 to 0.8; all in length of 

 head (tip of snout to posterior margin of opercular membrane) . Depth 

 of caudal peduncle in its length 1.1 to 1.4; angle of snout profile with 

 lengthwise axis of body 45 to 53 degrees, snout convex. 



Teeth of jaws biserial, outer row cylindrical basally, flattened and 

 curved distally, with rounded tips, inner row small teeth fitting close 

 against spaces of outer row, flattened, pointed; scales on snout ex- 

 tending forward to nostrils; preorbital and suborbital naked, former 

 with a single horizontal curved spine at its lower posterior margin, 

 latter smooth on lower margin of anterior ji, strongly serrate on 

 posterior %] posterior margin of prcopercle naked, strongly serrate; 

 opercle with flat triangular spine; dorsal spines gradually increasing 

 in length to last; soft dorsal, anal and caudal lobes pointed; pelvics 

 pointed; pectoral rounded. 



Color in alcohol. — Head yellow or brown with numerous narrow 

 blue lines converging at tip of snout, on cheeks, and on subopercle, 

 these broken into rows of round white dots; a black spot about size of 

 pupil on opercular margin near upper edge of gill opening; scales of 

 body with dark brown base and usually brown margin, and with short 

 vertical blue bar across middle joining with bars on scales above and 

 below to form alternating light and dark bars ; spiny dorsal membrane 



