238 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
tin 1 space between them deeply emarginate but filled by membrane; preopercle rather distinctly ser¬ 
rate, the teeth very short; eye rather large, its lower border in line with axis of body; preorbital very 
narrow, much narrower than in ]>. riole&cens; interorbital space narrower than in the preceding species, 
slightly convex; caudal peduncle long, its length from base of last dorsal raj - to first supporting rays 
of caudal 1.7 in head, its least width about 2.1 in its least depth, which is 2.1 in its length; gillrakers 
rather numerous, close-set, the longest about 2.2 in eye; fins moderately developed, the dorsal contin¬ 
uous, without notch, its origin slightly behind base of pectoral and equally distant between tip of snout 
and base of fifth or sixth dorsal ray; head 2 in distance from origin of anal to middle of last dorsal ray; 
first dorsal spine rather short, about 1.9 in length of second; fifth dorsal spine longest, its length equal 
to distance from tip of snout to pupil; last dorsal ray produced, its length about 1.8 times that of the 
preceding; anal similar to soft dorsal, its origin under base of third dorsal ray; first anal spine very 
short, the third longest, its length 1.2 in diameter of eye; soft anal similar to soft dorsal, the last ray 
produced and of equal length with that of dorsal; caudal densely scaled and widely forked, lobes equal, 
their length, measured from base of first supporting rays equaling that of head; ventrals not pointed, 
their tips not reaching vent, their length 1.6 in head; pectoral long, slightly falcate, its tip reaching 
vent and much beyond that of ventral, its length equaling that of head; scales rather small, closely 
imbricated, deeper than long, their edges finely ciliated; cheek and operates scaled, 6 rows on cheek; 
a large bony humeral scale from which extends a series of modified scales to nape, and in front of 
which is a patch of ordinary scales; lateral line complete and well developed, beginning at lower edge 
of humeral scale and following contour of back to base of middle caudal rays, the tubes little branched. 
Color in alcohol, brownish or purplish olivaceous above, paler on side; under parts nearly plain 
white; each scale of back and upper part of side with a darker brown spot, these forming indistinct 
rows, about 6 above lateral line; side below lateral line with less distinct horizontal lines; upper parts 
of head olivaceous brown, lower parts paler, spines of dorsal fin purplish, the membranes white, 
purplish at tips; soft dorsal with rays whitish, membranes purplish; caudal slightly dusky, other fins 
plain whitish. 
This species is related to B. vinhtscena, from which it differs chiefly in the shorter snout, larger eye, 
shorter maxillary, shorter mandible, narrower interorbital space, decidedly smaller scales, more 
numerous gillrakers, and more posterior insertion of dorsal fin. Only one specimen known, type 
No. 50661, U. S. N. M. (field No. 04104), 14.25 inches long, from Hilo, Hawaii Island. 
Bmucrsia ulaula Jordan & Evermami, Bull. U. S. Full Comm., XXII. 1902 (April 11, 1903), 1S3, Hilo. 
Genus 133. APKION Cuvier & Valenciennes. 
Body oblong or elongate, compressed; scales large; mouth rather small; villiform teeth on 
vomer, palatines and jaws, outer series on jaws somewhat enlarged and canine-like; no teeth on 
tongue; preopercle entire; interorbital flat; last ray of dorsal and anal somewhat produced; dorsal 
