270 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
We have seen only 4 specimens, all from Honolulu, 3 obtained by Dr. Jenkins and one by Dr. 
Wood. Each is 6 inches long. 
Hcliastes oralis stcindic-hner, Denks. Ak. Wiss. Wien, LX X, 1900, 502, Honolulu. 
< 'Ini on is relax Jenkins, Bull. I S. Kish Comm., XIX. 1899 I June 8, 1901), 398, fig. 6, Honolulu. (Type. No. 19098. I*. S. N. M .. 
Coll. O. P. Jenkins.) 
Chromis ovalis, Jenkins, Bull. U. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), '158 (Honolulu). 
Genus 144. P0MACENTRUS Lacepede. 
Body ovate, or oblong, compressed, the profile steep, usually rounded; head moderate, nearly as 
deep as long, the snout scaly, the lower jaw scaly or naked; mouth quite small, terminal, the jaws 
equal; each jaw armed with 1 or 2 close-set series of compressed, immovable teeth, which are truncate 
or rounded at tip, sometimes a few small teeth behind these; gill rakers long; preopercle more or less 
serrate; preorbital serrate; scales large, strongly ctenoid, the lateral line running parallel with the hack 
to near end of dorsal fin, at which point it ceases; dorsal tin continuous, with 12 or 13 low stout spines; 
membrane of spinous dorsal usually not deeply incised nor lolled, the soft part more or less elevated, 
its last rays gradually shortened; lower limb of preopercle usually more or less scaly; preorbital 
narrow, without deep notch; anal fin similar to soft dorsal, with 2 spines, of which the second is much 
the larger; soft rays 12 to Hi; dorsal spines with a sheath of large scales, the membranes of both dorsal 
and anal covered high up with small scales; caudal fin more or less forked, the lobes rounded; lower 
pharyngeals triangular; branchiostegals 5 or ti. Species numerous in the tropical seas; extremely 
variable in form and color, the brilliant coloration apparently dependent on surroundings. 
.Pomarentrus LacCpMe, Hist. Nat, I'oiss., IV, 508, 1802 (parn)\ teeth biserial, soft dorsal short, often elevated; caudal deeply- 
forked, teeth truncate. 
Pristotis Riippell, Neue Wirbeltliiere, Fischc, 128, 1S38 (cyanoitAgma). 
Psmdopnmaixntrus Bleeker, Verb. Hull. M»ats. Weten., II, 187V, 40 (WtoraU«>; teeth rounded; preorbital notched; caudal 
lunate. 
Pampomaci-nlrus Blocker, Nat. Verb. Hull. Maats. Weten., II, 1877, 05 ( polynema); teeth uniserial; lower jaw scaly; snout 
scaly; spinous dorsal with membrane incised and lobed. 
Amblypomua'ntrus Bleeker, Nat. Verb. Holl. Mauls. Weten., II, 1877, 68 (bpevicepe); snout and lower jaw naked. 
Eupomacentms Bleeker, Nat. Verb. Holl. Maats. Weten., II, 1877, 73 ( lividm ); snout scaly; lower jaw naked; membranes 
of spinous dorsal not notched; teeth uniserial. 
Brackypninaceritius Bleeker, Nat. Verb.. Holl. Maats. Weten., II, 1877, 73 Wbifateiatouy, as above; membrane of spinous 
dorsal deeply notched. 
211. Pomacentrus jenkinsi Jordan & Evermann. Fig. 115. 
Head 3.4 in length; depth 1.8; eye 3.3 in head; snout 4; maxillary 3.2; interorbital 2.75; D. xrn, 
Id: A. ii, 13; scales 4-29-11 ; Br. 4. 
Body ovate, deep, compressed, dorsal outline rather steep, evenly curved from tip of snout to soft 
dorsal, following edge of scales on spinous dorsal; head deeper than long, compressed, subconic; snout 
bluntly conic, jaws equal; maxillary reaching anterior edge of eye; mouth small, horizontal; a single 
row of close-set, incisor teeth in each jaw; posterior edge of preopercle roughly serrate; opercle ending 
in 2 short fiat spines, the upper very obscure; interorbital wide, strongly convex; fins rather large; 
origin of dorsal over ventral, origin of each equally distant from tip of snout; first 2 or 3 dorsal spines 
shorter than others; others about of equal length, shorter than the longest dorsal rays, the median rays 
being longest, 1.5 in head; caudal forked, lobes rounded, upper the longer; anal rounded, longest ray 
1.5 in head, second spine rather stout and strong, 2.2 in head; ventrals long, reaching vent, 1.1 in head; 
pectoral broad, upper rays the longer, 1.2 in head; scales large, finely ctenoid; body and head, except 
lower jaw and snout, scaled, scales on top of head small; bases of all the fins except ventrals well 
covered with fine scales, those on spinous dorsal larger; lateral line concurrent with dorsal outline to a 
line under base of third or fourth dorsal ray, where it drops 3 rows of scales to middle of caudal 
peduncle, thence continuing to base of caudal fin, the detached portion little developed. 
Color in life, ground dark drab; central portion of scales olivaceous, each one with black on lower 
part of posterior edge forming vertical hands on body; axil black; outer border of dorsal fin, above 
scaled part, black: pectoral dusky olivaceous, black at base; ventral and anal black; caudal dusky 
with posterior border lighter; iris bright yellow. 
