GILBERT: FISHES OF THE SUBGENUS LUXILUS


 Luxilus cornutus cerasinus, Jordan, 1929: 82 (description; range).
 Luxilus cerasinus, Jordan, Evermann and Clark, 1930: 128 (reference to orig-
 inal description; range).



 *.. C.

 4. 4 .






Figure 7. Adult male Notropis cerasinus, UMMZ 174710, 81 mm SL, from
Cub Creek, Appomatox, Appomatox County, Virginia.

 TYPE. Cope (1867: 159) did not designate a holotype for Hyp-
silepis cornutus cerasinus. The syntypic series (ANSP 3791-3833)
consists of 43 specimens, of which I designate an adult male, 73 mm
SL, as lectotype; this specimen is now catalogued as ANSP 3791.
The remainder of the series contains 8 paratypes of Notropis cerasinus
(ANSP 3792-3799) and 34 specimens of Notropis albeolus (ANSP
3800-3833).
 DIAGNOSIS. A small species of Luxilus, not exceeding 87.5 mm
SL, distinguished by: Relatively large scales, the sum of anterior
dorso-lateral and circumferential scales usually 41 to 47; caudal
peduncle scales (12) 13 to 15 (16), usually 14 (range 5-2-5 to 7-2-7);
body deep and compressed; upper half of head darkly pigmented,
contrasting sharply with lighter lower half, particularly in breeding
males; considerable red pigment on body and fins of nuptial males,
possibly more than in any other form of Luxilus; scale pockets on side
of body heavily pigmented, particularly in breeding males, with
many scales appearing entirely black, forming vertical crescent-shaped
bars which are more pronounced than in any other member of the
subgenus; scales in dorsal region with a thin black line parallel to
and approximately one-fifth of way in from posterior edge; nuptial
tubercles present in both sexes, but less well developed in females;
four or five tubercles present in a single row on lower jaw, not reach-
ing tip of chin (see figure 14C); tubercles covering top and side of
head, back and anterior part of dorsal fin; tubercles on head curved
forward at tips.


1964