CENTRARCHIDZ. 29 
The following description is taken from a large number of incivid- 
uals sent by Dr. C. C. Abbott to the Smithsonian Institution from 
Trenton, N. J., and from others collected by Prof. Baird at Beaseley’s 
Point, N. J.:— ; 
Body rather short and deep, but more elongate than in any of the 
others; the head 2? in length, the depth 24; the eye large, longer than 
snout, 34 in head; mouth moderate, very oblique, the maxillary reach- 
ing to just past the front of the orbit. 
Dorsal spines medium; the soft rays in the males somewhat elevated, 
reaching when depressed just to the base of the caudal; the longest 
soit ray as long as from the snout to the preopercular margin. In the 
females, the rays are shortened, but the sexual differences are much 
less marked than in #. pinniger. Anal spines long, rather rapidily 
graduated, the longest soft rays as long as those of the dorsal. 
Ventral fins as in #. pinniger, the longest rays in the males filament- 
ous aud reaching the soft rays of anal; in the females shorter. Pecto- 
ral fins rather long, reaching middle of anal. Lateral line complete. 
Fin-rays:—D. 1X, 10; A. IL, 9. Scales 3-30-9. 
General coloration similar to that of H. pinniger, Body dark olive; 
very young specimens with faint traces of vertical bars; a moderate- 
‘sized opercular spot, smaller than in H. obesus, bordered above and below 
with luminous blue. Near the anterior edge of the ‘ ear-flap” is a cres- 
cent-shaped pearly-blue spot, which, though small, is very conspicuous. 
Traces of a similar mark may be observed on EL. obesus. Sides of head, 
whole body, and vertical fins with round bright blue spots arranged in 
irregular rows; these spots most distinct on the cheeks and opercles 
and on the lower parts of the sides. 
This species resembles the preceding; but the males may be dis- 
tinguished at once by the much less development of the fins and by the 
smaller size. The females of the two species bear more resemblance to 
each other, but differ in a similar way, though to a less degree. 
Length of specimens examined about 2? inches. 
Many specimens in the United States National Museum from the 
Potomac River, Delaware River and from localities in New Jersey. 
The real affinities of HZ. margarotis are probably rather with LH. obesus, 
and especially H. gloriosus, than with HL. pinniger. 
Bryttus fasciatus Holbrook seems to be identical with EH. obesus. 
{ have seen ng specimens of Z. gloriosus, eud know it only by Hol- 
brook’s description and figure. 
