308 MEMOIRS OF THE CARNEGIE MUSEUM. 



p. 54 (western slope of Andes of Ecuador); Gunther, Cat. Fishes Brit. Mus., 

 V, 1SG4. p. 274. 

 Pygidium laticeps Eigenmann & Eigenmann, Proc. Cal. Acad. Sci., II, 1889, p. 51; 

 Occasional Papers Cal. Acad. Sci., I, 1890, p. 334; Proc. U. S. Nat. Mus., XIV, 

 1891, p. 36; Eigenmann, Reports Princeton Univ. Exped. Patagonia, III, 

 1910, p. 399. 

 Habitat. — Western slope of the Andes of Ecuador. 



13811, I. U. M., one, 79 mm. Below Paramba, Prov. Imbabura, Ecuador. 2600 

 feet. Henn. 



13812, I. U. M., 7094a-d, C. M., seventy-one, largest 89 mm. Mindo. Henn. 

 Head 5-5.2; D. 10.5; A. 8.5; P. 7. 



G. 12. Pygidium laticeps (Kner & Steindachner). After Kner & Steindachner. 



The barbels in the specimens average a little longer than in the specimens of 

 P. tcenium from Llanos. Distance between last anal ray and base of middle caudal 

 ray about 5.5 in the length; distance between origin of dorsal and base of middle 

 caudal rays on an average 2.28 in its distance from the snout; the last dorsal ray over 

 the last anal ray, the two fins coterminous. 



Teeth: Incisors in two series in each jaw. 



Dark brown, with obscure spots, about the size of the eye, evenly distributed 

 over the sides and back. No trace of a lateral band in any of the specimens. 



In the very small the last anal ray is a little back of the vertical from the last 

 dorsal ray, and the color is uniform. 



24. Pygidium stellatum Eigenmann. (Plate XLVII, fig. 1.) 



7097, C. M., type, 78 mm. Quebrada Sarjento. Gonzales. 



7098a-c, C. M.; 13814, I. U. M., paratypes, 65-85 mm. Quebrada Sarjento. 

 Gonzales. 



7096a-c, C. M.; 13815,1. U. M.,five, 45-86 mm. Quebrada Guamal. Gonzales. 



7099a-6, C. M.; 13816, I. U. M., five, 37-55 mm. Quebrada Guadual. Gonzales. 



7100a-/, C. M.; 13817, I. U. M., seventeen, largest 50 mm. Rio Guaduas. Gon- 

 zales. 



13807, I. U. M., three, 31-50 mm. Quebrada Cristalina, 28 kilom. above Puerto 

 Berrio, 1000 ft, E. B. Williamson. 

 Head 5.5-6; D. 10.5; A. 7.5; P. 7; eye in middle of the head, or very slightly in 



