5 TO COXTKIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IT. 
with about 10 spines; anal fin with 2 spines, the second not very small. 
Caudal lunate or truncate. Gill-rakers normal, but short. Air-bladder 
jiresent. In most warm seas. (Latin, innbm, shade; the name umbra 
was used for the typical species bj' early writers.) 
a. Sides without vertical bars. 
90-5. I', roucador Jor. & Gilb. — Yelloic-finned Roncador. 
Bright silvery, bluish above, with brassy reflections ; sides with nar- 
row, distinct, undulating streaks of deep olive, running from the head 
and pectoral region upward and backward, with some abrupt curvatures, 
to the ba.se of the dorsal fln, sometimes alternating with lines of spots; 
no vertical bars; cheeks pure white; fins mostly yellow; peritoneum 
black. Body elliptical-elongate, the back somewhat elevated, the curve 
from snout to dorsal regular. Head conical, bluntish. Mouth horizon- 
tal, the maxillary extending to beyond front of pupil ; eye moderate, 1^ 
in snout, in head, in interorbital width. Caudal lunate, the upper 
lobe the longer. Second anal spine strong, 2^ in head, a little shorter 
than third dorsal spine. Pectoral short and small, not reaching tips of 
ventrals, and ^ot halfway to vent; its length li in head. Head 34; 
depth 3^. D. X-1, 27 ; A. II. 7 ; Lat. 1. 53. L. 15 inches. Point Concep- 
cion to Panama abundant ; one of the handsomest of the Scisenoids. 
(Jor. A Gilb. Proc. U. S. Nat. Mus. 1561: Vmhriiia undulata Steindachner, Ichtbyol. 
Beitriige. iii, Ql, 1575: not of Girard.) 
aa. Sides with vertical bars. 
906. I*, broussoneti Cnv. & TaL 
Body with about 9 dark cross-bands, besides undulating streaks 
along the rows of scales ; spinous dorsal blackish. Body rather stout, 
the back somewhat elevated; maxillary extending to pupil; preopercle 
finely denticulate on its bony edge ; barbel short ; pectoral fins short 
and small, not reaching to tips of ventrals nor half way to vent; 
caudal truncate; second anal spine thick, f the length of the head. 
Eye 3§ in head. Head 3f ; depth 3. D. X-I, 28 ; A. II, 7 ; scales 5-43- 
10. TVe.st Indies, north to East Florida. 
(Cuv. A Val. V, 157 ; Gunther ii, 277 ; Jordan, Proc. U. S. Nat. Mus. 1880, 17 : Um- 
brina coroides Cuv. A Val. v, 167.) 
303.— .'TIE.^TICIRRIS GiU. 
King-JUsh. 
(Gill, Prcc. Acad. Nat. Sci. Phila. 1561, 86: tj'pe Perea aJburnus L.) 
Body comparatively elongate, little compressed ; head long, subconic, 
the bluntish snout considerably projecting beyond the mouth; mouth 
