DESCRIPTIONS OP FISHES PROM THE HAWAIIAN ISLANDS. 
89 1 
This species is closely allied to Apharem furcatus (Lacepede), 1 of the Red Sea and westward to 
Japan, differing from descriptions and figures of the latter species in the presence of the bright yellow 
facial area. 
( Flavus , yellow; vullus, face.) 
One adult specimen collected by me at the Hawaiian Islands and two young ones secured by Dr. 
Wood at Honolulu. Type No. 49691, U. S. N. M. 
The following are the comparative measurements and the numbers of fin rays and scales: 
Aphareus flavivultus. 
No. 1 . 
No. 2. 
No. 3. 
Aphareus flavivultus. 
No. 1. 
No. 2. 
No. 3. 
Length in millimeters . . 
110 
113 
310 
Interorbital 
.09 
.10 
.08 
Head 
.30 
.31 
.30 
.31 
X 
X 
X 
.33 
.33 
Second dorsal rays 
11 
11 
11 
.24 
.24 
23 
8 
• s 
8 
Ventral 
. 22 
. 22 
.18 
Scales on lateral line 
75 
71 
73 
Eye 
.10 
.10 
.08 
Family POMACENTRID^. 
Eupomacentrus marginatus Jenkins, new species. Fig. 5. 
Head 2.66 in length of body; depth 2. D. xm, 16; A. ii, 12. Scales 3-29-11. Tubes on lateral 
line 20. Eye 3.5 in head. Interorbital about equal to snout, 3 in head. Profile of head, evenly and 
gently rounded from tip of snout to front of dorsal, profile from snout to base of ventrals less convex 
than that to the dorsal; from front of dorsal fin to middle of second dorsal gently convex, abruptly 
descending from here to caudal peduncle; ventral outline from base of ventrals to caudal peduncle 
evenly convex. Caudal peduncle short, 3 in head. Preorbital narrow, width below front of eye about 
equal to eye. A few small serrations on suborbital beneath posterior half of eye. Posterior limb of 
preoperele serrated, inclined somewhat back of perpendicular. First three dorsal spines a little shorter 
than the others, which are of about equal length and 2 in head. Median soft rays longest, 1.5 in head, 
posterior rays two-thirds of anterior. First anal spine short, second about equal to dorsal spines. 
Soft anal similar in shape to soft dorsal, median rays equal to median soft dorsal rays. Lobes of caudal 
rounded, the upper the larger. Scales 3-29-11, those on anterior part of body larger than those on 
posterior part. Lateral line on first 20 transverse rows of scales on body follows fourth longitudinal 
row, but on account of the difference in size of the scales it is much nearer the back posteriorly and 
1 Labrus furcatus LacepOde, Hist. Nat. Poiss., ni, pp. 424, 477, pi. 21, fig. 1. 
Aphareus furcatus Cuvier & Valenciennes, Hist. Nat. Poiss., Vi, p. 487, pi. 167 b; Gunther, Cat. Fishes Brit. Mus.,1, 
p. 386; Fische der Siidsee, p. 17; Bleeker, Atlas Ichthy., vm, p. 80, pi. 299, fig. 2. 
