GILBERT: FISHES OF THE SUBGENUS LUXILUS


fiction. Hence some series of specimens identified to subspecies may
actually consist of intergrades.

 Notropis chrysocephalus isolepis Hubbs and Brown

 Southern Striped Shiner, figures 13, 14E, 15A, map 5.













Figure 13. Adult male Notropis chrysocephalus isolepis, UMMZ 161262, 95
mm SL, from Vernon, Jackson Parish, Louisiana.

?Leuciscus gibbosus Storer, 1845: 48 (original description inadequate for positive
 identification; no type specimens; type locality Tuscaloosa, Alabama).
 ?Plargyrus gibbosus, Girard, 1856: 196 (in part; list of related species; Ala-
 bama).
Luxilus cornutus, Jordan, 1876b: 286-287 misidentificationn in part; description;
 range; synonymy).
 Notropis cornutus, Jordan and Evermann, 1896a: 256 misidentificationn in
 part; range; reference to original description).
Notropis megalops, Gilbert, 1891: 157 misidentificationn in part; Black Warrior
 and North rivers, Alabama).
Notropis cornutus isolepis Hubbs and Brown, in Ortenburger and Hubbs, 1927:
 129-131 (original description; holotype, UMMZ 73090, 101 mm SL;
 four paratopotypes, UMMZ 73091; type locality Mountain Fork R.,
 10 mi. southeast of Broken Bow, McCurtain Co., Oklahoma; comparison
 with related forms; counts; range).
 Luxilus cornutus isolepis, Jordan, Evermann and Clark, 1930: 128 (range;
 synonymy).
 Notropis cornuta isolepis, Hubbs, 1951: 490 (first records for Texas).
 Notropis chrysocephalus isolepis, Gilbert, 1961a: 2411-2412 (general account).

 DIAGNOSIS. A subspecies of Notropis chrysocephalus distinguished
 from N. c. chrysocephalus by: Slightly larger scales, those in anterior
 dorso-lateral series (12) 13 or 14 (15); circumferential series (23) 24 to
 28; sum of anterior dorso-lateral and circumferential scales (36) 37
 to 41 (43); predorsal and anterior dorso-lateral scale rows very straight
 and even; anterior dorso-lateral stripes usually straight, well-defined,


1964