FISH-CULTURAL INVESTIGATIONS IN TEXAS. 
77 
6. Notropis deliciosus (Girard). 
Montana deliciosa Girard, Proc. Acad. Nat. Sci. Phila. 1856. 
This appears to be an abundant species in southern Texas, as indicated by the 
specimens in the collection, viz : 
Kilper’s Pond, Houston 1 
Big White Oak Bayou, Houston 2 
Buffalo Bayou, Houston 9 
Hunter Creek, Houston 31 
Rio San Marcos, San Marcos 26 
Guadalupe River, New Braunfels 82 
San Antonio River, San Antonio 76 
Numerous specimens examined give the following measurements: Head, 4£ to 4f; 
depth, 4^- to 4f ; eye, 3; D. I, 8 or 9; A. I, 8; scales, 6-36 or 37-3, 13 or 14 before the 
dorsal. 
Body slender, head moderate; snout rather blunt, less than eye or interorbital 
width; the mouth not large, subinferior, oblique, lower jaw included; origin of dorsal 
slightly behind base of ventrals, midway between tip of snout and base of caudal fin, 
high, the longest rays, which are the anterior ones, nearly as long as head; anal base 
short, its longest rays If in head. 
Color in alcohol : Scales above lateral line with numerous fine black specks, thickest 
along border of each scale, forming cross-hatching, darkest along middle line of back, 
a black blotch on back in front of dorsal and another on caudal peduncle at beginning 
of caudal flu; base of dorsal fin dusky; top of head and upper jaw dark; a few dark 
specks on upper part of opercle, the lower portion and the lower jaw pale; side with 
a broad plumbeous band, about one scale wide, lying along lateral line, this dusted 
over with fine, darker punctulations. This color description applies more especially to 
the San Antonio specimens. Those from the other places, especially those from about 
Houston, are much paler, but the general pattern of coloration is the same. Many of 
the females of the San Antonio lot contained well-developed eggs. 
7. Notropis nux, sp. nov. 
This species is based upon specimens from the following places: 
Neches River, Palestine 10 
Trinity River, Palestine 1 
Long Lake, Palestine 1 
Head, 4 to 4^; depth, 4f ; eye, 3 to 3f ; D. I, 8; A. I, 7 or 8; scales, 6-37 or 38-3 
or 4, 13 or 14 before the dorsal; teeth, 1, 4-4, 2 in the Long Lake specimen, apparently 
only 1, 4-4, 0 or 1 in the others; grinding surface developed and somewhat crenate, 
especially in the Neches River specimens. 
Body rather slender, somewhat elevated, head subconic, snout rather blunt, a 
little decurved; mouth moderate, oblique, maxillary not reaching orbit, lower jaw 
slightly included; eye rather large, about 3 in head, equal to snout, also to interor- 
bital width; caudal peduncle long and slender, its least depth 2-J : in head. Origin of 
dorsal fin over insertion of ventrals, nearer snout than base of caudal, height of fin 
equals length of head, base short; anal smaller; pectorals short, not reaching ventrals, 
which, in turn, do not reach the anal; caudal long and widely forked; lateral line 
complete, nearly straight; peritoneum pale, with a few broAvn spots. 
