282 REPORT OF NEW JERSEY STATE MUSEUM. 
They associate usually with others of our well-known fishes, such 
as Notropis chalybeus, Brama crysoleucas, Erimyzon sucetta 
oblongus, Leponus auritus and Eupomotis gibbosus. 
They are frequently taken in the main channel of the Dela- 
ware. In small weedy ditches with little water they frequently 
associate with Umbra pygmea. In size they seldom exceed 4 
inches. When seen in life a beautiful fish, the spots on the body 
of a most brilliant sky-blue in some examples and ofa dull 
greenish-blue in others. The female is duller and with smaller 
fins. The young are with dark vertical bands which persist more 
or less indistinctly sometimes in adult examples. ‘This species 
may, however, be easily recognized by the small black spot on 
the opercle, which is always much smaller than the pupil of the 
eye. Enneacanthus obesus is a closely-related species, but may 
readily be distinguished by the large dark opercular spot, which 
is larger than the pupil of the eye, and the distinct dark trans- 
verse bands. I also have a large series of New Jersey examples 
from White Pond and the Batsto River, where it was found 
abundantly by Cope. 
Bryttus punctatus Abbott, Am. Nat., IV, 1870, pp. 101, 102, 
lapsus for guttatus. 
Enneacanthus guttatus Abbott, Rep. U. S. F. Com., 1875-76, 
p. 837. 
Enneacanthus margarotis Gill and Jordan, in Jordan, Bull. U. 
S. Nat. Mus., X, 1877, p. 28.—Jordan, An. N. Y. Acad. Sei., I, 
1870, p. 98. 
Enneacanthus simulans Cope, Proc. Acad. Nat. Sci. Phila., 
1883, p. 132.—Abbott, Nat. Rambles, 1885, p. 477. 
Apomotis obesus Boulenger, Cat. Fish. Brit. Mus., Ed. I, 1, 
1895, p. 19, in part. 
Enneacanthus obesus (Girard). 
Sun Fish. Spotted Fin Sun Fish. Spotted Sun Fish. Rock Sun 
Fish. 
Head 2%); depth 21/.5 3 DwIX,.11,)0;-An TE, magiseales, 30cm 
lateral line to base of caudal; 6 scales between origin of spinous 
dorsal and lateral line; 11 scales between origin of spinous anal 
/ 
