316 MEMOIRS OF THE CARNEGIE MUSEUM. 



4834, C. M.; 12680, I. U. M., paratypes, six. Madrid, plains of Bogota. Eigen- 



mann. 

 University of Michigan, 94 mm. Mountains, 4,000 ft,, Guira River, Santa Marta. 



July 18, 1913. A. S. Pearse. 

 University of Michigan, 66 and 68 mm. Small stream, San Lorenzo, Santa Marta, 



4,500 ft, July S, 1913. A. S. Pearse. 

 7087a-c, C. M., 13802, I. U. M., five, largest 52 mm. Rio Piedras, Santander. 



Gonzales. 

 7457, C. M.; 13845, I. U. M., five, largest 55 mm. Quebrada da Charda. San- 

 tander. 

 7088, C. M., 13803, 1. IT. M., twenty-six, largest 80 mm. (Label illegible " Puchada? 



de la Porguira? de Norte Zipa Quira? ") Gonzales. 

 13806, I. U. M., 85 mm. Mill-stream, Cincinnati (twenty miles from Santa 



Marta), Colombia. Dec. 31, 1916, 4,500 feet. E. B. Williamson. 



Head 5.25-6; D. 10.5 in two specimens, 11.5 in four, 12.5 in eight, 13.5 in two; 

 A. 10.5; P. 8; center of the eye very little in front of the middle of the head; inter- 

 ocular about three in the length of the head ; head but little longer than wide ; teeth 

 conical, in three or four irregular series. 



Nasal barbel extending to tip or base of opercular spines; maxillary barbel 

 extending to the base of the opercular spines or beyond the base of the pectoral; 

 pectoral rays about as long as the head behind the nasal barbel, pectoral filament 

 about as long as the head ; origin of ventrals equidistant from base of middle caudal 

 rays and tip or base of the opercular spines, tips of ventrals extending to or very 

 slightly beyond the vent; origin of anal under one of the last three dorsal rays or 

 just behind the vertical from the last one; distance between the base of the last anal 

 ray and the middle of the caudal ray four and three-fifths to five in the length; 

 caudal rounded, six to seven in the length; accessory caudal rays numerous and 

 large ; origin of dorsal over origin or posterior half of the ventrals, equidistant from 

 tip of caudal and eye, 23 its distance from the base of the middle caudal rays one and 

 five-tenths to one and seven-tenths in its distance from the snout. 



'-'•'' In this specimen the origin of the dorsal is over the origin of the ventrals. In the specimens from 

 the plains about Bogota examined in this regard, only one had the origin of the dorsal a little further 

 forward, a number had it equidistant between the tip of the caudal and a point some distance behind the 

 eye. In the specimens from the Santa Marta Mountains, the origin of the dorsal is a little further for- 

 ward. These specimens approach nigromaculatwn, to which they ought perhaps to be referred. It is 

 certain that the largest specimens referred to nigromaculatum from Santa Marta belong to a species dif- 

 ferent from t hose found on the plains of Bogota. It is possible that P. bogotense is also found in Santander 

 and Santa Marta, but it is also possible that the halfgrown of P. bogotense are indistinguishable from the 

 half-grown of /'. nigromaculatum, and that the specimens from Santander and Santa Marta are really the 

 latter species. 



