FAMILY POMACENTRIDAE — WOODS AND SCHULTZ 95 



snout; usually a narrow blue line across eye below pupil, thence across 

 preorbital to upper lip, and a narrower line below eye to rictus; 

 upper part of head and back dark brown, sometimes with tiny blue 

 dots on each scale, sides below lateral line becoming paler ventrally, 

 lower sides light dusky brown with faint lengthwise lines, belly yellow- 

 ish, caudal peduncle pale yellowish with faint brownish dots on bases 

 of some scales; dorsal dusky with a large black ocellus on last 3 rays 

 and a black spot on last soft rays extending along dorsal surface of 

 caudal peduncle in some specunens; distal portion of last dorsal rays 

 pale but with faint fine brownish barring; anal dusky basally anteriorly, 

 a narrow black line along ventral margin, sometimes a faint barred 

 line across middle of pale posterior rays; caudal pale hyaline, outer 

 edges of upper and lower rays with narrow black line ; pelvics pale or 

 dusky, if pale the outer edge of spine and first ray have narrow black 

 line; pectoral pale a small brown spot on base of upper rays. 



Color when alive.— k 55-mm. specimen has the back and sides 

 purplish brown or blackish; breast and belly light brown; prominent 

 black spots about as large as eye below last dorsal spines and at 

 posterior base of soft dorsal; chin and opercle yellowish; preopercle 

 brownish; iris yellow; w^edge-shaped bar light purplish brown flecked 

 with white; spiny dorsal orange, with distinct narrow black marginal 

 line; soft dorsal bright yellow; caudal yellowish orange, anal blackish; 

 pelvics black; pectoral bright yellow. 



Remarks. — We have examined over 700 specimens, ranging in size 

 from 15.5 mm. to 83 mm., many of these were intermediate between 

 typical biocellatus and typical zonatus. The size at which the juvenile 

 colors are no longer evident varies from about 25 to 50 mm. ; specimens 

 as small as 33 mm. had partially assumed the darker colors of adults 

 and nearly lost the blue lines on the head while these were retained 

 in some as large as 47 mm. This species shows considerable variation 

 in color pattern, and between all extremes and varieties our large 

 series contain some intermediate forms. 



ABUDEFDUF JOHNSTONIANUS (Fowler and Ball) 



Plates 86,C; 88,A 



Pledroglyphidodon johnstonianus Fowlek and Ball, Proc. Acad. Nat. Sci 

 Philadephia, vol. 76, p. 271, 1924 (type locality, Johnston Island). 

 SPECIMENS STUDIED 

 Bikini Atoll: Univ. Washington, 1946, 1 lot, 2 specimens, 45 to 68 mm. in 

 standard length. 



Rongelap Atoll: 1 station, 3 specimens, 41.5 to 49 mm. 

 Eniwetok Atoll: 1 station, 5 specimens, all 21 mm. 

 Johnston Island: August 1947, 9 specimens, 56 to 77 mm. 



Description.— 'Dorsal fin rays XII, 18 (rarely 19); anal 11,15 to 17 

 (usually 16); pectoral rays ii,17; transverse scale rows from upper 



