POMACENTRIDAE. 133 
the Jordan and Evermann collection, seven specimens have dorsal 17, anal 14 
as we count them. 
The very young have a small white margin on spinous dorsal, becoming 
progressively but variously narrower in specimens up to three inches long, after 
which it seems to disappear entirely. This margin is not so evident in the 
Hawaiian specimens of similar size. This may be due to their faded condition. 
Pomacentrus leucorus GILBERT. 
Proc. U.S. Nat. Mus. 1892, 14, p. 554. Snopcrass & Hetumr, Proc. Wash. Acad. Sci., 1905, 6, p. 387. 
Six specimens 4 to 6 inches long, Nos. 3220-5, from Wreck Bay, Chatham 
Island. No. 3224, M. C. Z. 29635, No. 3225, M. C. Z. 29701. 
Four specimens, M. C. Z. 29549, 1 to 1% inches long from Chatham Island, 
shore. 
The following color markings were noted. A specimen 25 mm. long had 
side of head, body, and belly dark brown fading to pale dusky on dorsal surface 
anterior to soft dorsal, becoming darker again on top of snout; posterior part 
of caudal peduncle lighter; a line of pearly spots from tip of snout backward 
across upper surface of eye to nape, other small pearly spots in front of and below 
orbit and on opercle; base of spinous dorsal very pale, spines pale, membrane 
dusky, a large black ocellus on last two dorsal spines and first two rays and 
extending on body nearly to lateral line, rest of soft dorsal, caudal, and pectoral 
slightly dusky; anal and ventral color of body, traces of lighter spots on posterior 
base of soft dorsal and anal; outer ray of ventrals with an interrupted pearly 
line; trace of a light spot near tip of pectoral. 
A specimen 46 mm. long similar to preceding, dorsal surface much darker 
with traces of grayish, tips of membranes of spinous dorsal black, ocellus con- 
fined to soft dorsal and body; pearly line from tip of snout to eye distinct, the 
remainder of line and other pearly spots not so marked; spot near tip of pectoral 
more distinct than in smaller specimens. 
Abudefduf sordidus (ForsKAt). 
JORDAN & EvERMANN, Bull. U.S. Fish. Comm., 1905, 23, pt. 1, p. 274, fig. 117. 
Chaetodon sordidus ForsKAu, Descript. Anim., 1775, p. 62 . 
Two specimens 3§ and 33% inches long, from Manga Reva. 
In the larger specimen the black saddle on caudal peduncle is very indis- 
tinct, and the dorsal, caudal, and anal have very dusky edges, differing in this 
respect from the smaller one and the young. 
