CATFISH GENUS NOTURUS RAFINESQUE 197 



area posterior to head on dorsal surface; a dark brown bar extends 

 across the back of the head to the branchiostegal membrane and onto 

 the operculum, giving off a posterior branch that follows the lateral 

 line backward to meet the first dorsal saddle on the side; another band 

 extends douTiward and backward from the eye, joining the band of 

 pigment on the operculum and passing forward just under the eye and 

 nares to the snout; upper barbels well pigmented ; lower barbels covered 

 with scattered fine chromatophores ; upper lip weakly pigmented; 

 under surfaces of head and abdomen with only a few scattered chro- 

 matophores, otherwise white, but a bridge of pigment crosses abdomen 

 in front of pelvic fins and one covers the chin in front of mental barbels. 



Type. — I have succeeded in locating only two of Jordan's numerous 

 original specimens, one in the British Museum and the other in the 

 Museum National d'Histou-e Naturelle, Paris. The latter, MNHN 

 A1308, is selected as the lectotype because it shows the better preserva- 

 tion and because it is from the White River at Indianapolis, Indiana. 

 This locality has been consistently stated to be the type-locality. 

 Although Jordan referred to Ohio VaUey specimens, presumably 

 meaning Ohio River, no definite locality was given. The British 

 Museum specimen bears no locality data other than Ohio River. 



Bertin and Esteve (1950, p. 25) erroneously listed MNHN A1308 

 as a paratype from the Etowah River, Georgia. A subsequent study 

 of the records for this specimen indicates that the locality error was 

 made when the specimen was recataloged in recent years. The speci- 

 men was received from David Starr Jordan in 1879. Further, listing 

 the specimen as a paratype was also in apparent error as no specimen 

 is known to have been designated as the holotype by Jordan, and 

 no lectotype was selected. 



The lectotype is a male, 59.5 mm. in standard length. Although 

 rather pale, it shows virtually all of the color pattern that is so char- 

 acteristic of this species. It has 6 soft dorsal rays, 15 anal rays, 

 24+74-12 + 11 = 54 caudal rays, and 35 vertebrae. The count of 

 eleven lower simple caudal rays is low, perhaps due to an injury, 

 later healed, that malformed the anterior part of the lower fin. There 

 are two internasal pores on the left and one on the right. Each pectoral 

 spine has prominent fine serrae anteriorly and seven recurved serrae 

 posteriorly. Each pelvic fin has one simple ray and eight branched 

 rays and each pectoral fin has eight soft rays. The preoperculo- 

 mandibular pores are eleven on the left side and ten on the right. 

 The head length is stepped 3.4 times in the standard length and the 

 distance from the rear end of the adipose fin to the tip of the caudal 

 fin (ends of rays broken) is stepped into the distance from the origin 

 of the dorsal fin to the rear end of the adipose fin about 1.6 times. 

 Further measurements are given in table 28. 



