86 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Head, 34; depth, 44 ; eye, 3£; D. 10 (11 in one specimen); A. 10 (occasionally 9) ; 
scales, 35-11, about 22 before the dorsal. 
Body stout, heavy forward; head broad and flat, the snout short and blunt; caudal 
peduncle long, deep, and greatly compressed; eye moderate, 14 in interorbital width, 
greater than snout; humeral scale not enlarged, four rows of scales on cheek; mouth 
rather small, but little oblique; teeth pointed, in more than one series, the outer en- 
larged and canine-like; peritoneum pale. Dorsal slightly in advance of anal, its origin 
midway between tip of caudal and anterior rim of orbit, or about midway between 
base of caudal and opercular opening; anal small, its longest rays 1J in head. 
Color in alcohol, olivaceous, profusely sprinkled or dusted all over except on breast 
with very flue brown punctulations, so abundant on back as to obscure the individual 
specks; median line of back with a black stripe from occiput to dorsal fin; sides with 
10 to 12 or more brown spots of larger size, these sometimes arranged somewhat defi- 
nitely in two longitudinal lines, in the upper one of which the spots are confluent in 
some examples, forming large, oblong blotches; all the fins except the ventrals with 
numerous very small brown specks. 
This species resembles Z. jenldnsi , but differs from it in the larger dorsal, much 
smaller anal, smaller scales, the much shorter snout, the heavier or broader head, and 
in the coloration. The localities from Avhich the types were obtained would indicate 
that it is an inhabitant of water that is but little brackish or almost fresh. 
26. Zygonectes jenkinsi, sp. nov. (PI. xxxvi.) 
This species is based upon 21 specimens, ranging in length from 1£ to 24 inches, 
collected in Dickinson Bayou, near Dickinson, Texas, November 14, 1891, and 11 ex- 
amples from Galveston Bay, Galveston, Texas, collected a day or two earlier. 
Head, 3J ; depth, 4£ (4£ to 5) ; eye, 34 (34 to 3f ) ; D. 8 or 9 ; A. 12 (11 to 13) ; scales, 
33-10, 18 before the dorsal. Body moderately elongate, head depressed, wide between 
the eyes, pointed, the snout about one-fourth greater than eye, which is contained 1J 
times in interorbital width; mouth rather large, little oblique; teeth in more than one 
series, the outer enlarged, pointed, and slightly curved inward; humeral scale small, 
three rows of scales on cheek. Fins medium, dorsal slightly behind anal, midway be- 
tween tip of caudal and posterior rim of orbit, the distance from tip of snout to origin 
of dorsal being twice the distance from that point to base of caudal fin; dorsal and 
anal low, their longest rays half length of head; base of anal 2£ in head; pectorals 
If in head; ventrals short, 14 in pectoral; caudal fin truncate, about as long as head; 
peritoneum black. 
Color, pale olivaceous, covered except on breast with numerous minute dark-brown 
specks, arranged chiefly along the edges of the scales, thus giving the sides and back 
a checkered or cross-hatched appearance; in addition to these fine punctulations, there 
are usually 15 to 30 larger spots more or less definitely arranged in two rows lying 
along or above the axis of the body ; in some examples these spots are absent or blended 
so as to form short, indistinct vertical bars; in most specimens there is a very obscure 
lateral band about one scale in width ; fins plain or with few very minute punctula- 
tions ; top of head dark. 
Related to Z. rubrifrons Jordan, but differing from it in the following particulars: 
The body is more slender, the head is shorter, the dorsal and anal are larger, and the 
color markings are quite different. Compared with specimens of Z. henslialli Jordan, 
