EIGENMANN: THE PYGIDIID^E, A FAMILY OF SOUTH AMERICAN CATFISHES. 337 



separated from the latter species. They may be identical with some of the younger 

 specimens of P. brasiliense mentioned by Eigenmann & Eigenmann in the papers 

 quoted above. 



The specimens, No. 7080,' are much shriveled but probably belong to this 

 species. 



59. Pygidium goeldii (Boulenger). 



Trichomycterus goeldii Boulenger, Ann. Mag. Nat. Hist. (G), XVIII, 1896, p. 154. 



Habitat. — Colonia Alpina, Therezopolis, nearly 2,600 ft., near Rio de Janeiro. 



I give the original description of Boulenger, I. c. : 



"Head much depressed, as long as broad, six times in total length; eye small, 

 midway between end of snout and opercular border, its diameter half interorbital 

 width; upper maxillary barbel reaching the pectoral; gill-membranes narrowly 

 joined to the isthmus, extending forward to below the eyes. Body as deep as 

 broad; caudal peduncle strongly compressed, twice as long as deep. Dorsal with 

 10 rays, opposite to the space between ventrals and anal, twice as distant from the 

 end of the snout as from the caudal; anal with 7 rays. Pectorals with the outer 

 ray produced, filiform. Ventrals equally distant from the end of the snout and 

 the posterior border of the caudal fin; latter rounded. Yellowish, with ill-defined 

 brown spots above. Total length 99 millim."- 



60. Pygidium brasiliense (Reinhardt) . 



Trichomycterus brasiliensis Reinhardt MS. in Liitken, Overs. Dansk. Vidensk. 

 Selsk., 1879, No. 3, p. 29 (Rio das Velhas); Lutken, Velhas Flodens Fiske, 

 p. 15, in Vidensk. Selsk. Skr. (5), Afd., XII, 1875, pp. 135 and I, pi. Ill, fig. 8 

 (Rio das Velhas); ? Boulenger, Proc. Zool. Soc. London, 1891, p. 235 (Rio 

 Grande do Sul) ; Ribeiro, Kosmos, 1908 (Ribeiro) ; Archiv. Mus. Nac. Rio de 

 Janeiro, XIII, 1906 (p. 7 of reprint); Fauna Brasiliense, Peixes, IV (A), 1912, 

 p. 223, Arch. Mus. Nac. Rio de Janeiro, XVI. 



Pygidium brasiliensis Eigenmann & Eigenmann (partim), Proc. Cal. Acad. Sci. 

 (2), II, 1889, p. 51; Occasional Papers Cal. Acad. Sci., I, 1890, p. 332; Proc. 

 U. S. Nat. Mus., XIV, 1891, p. 36; Eigenmann, Reports Princeton Univ. 

 Exped. Patagonia, III, 1910, p. 399. 



Trichomycterus brasiliensis tristis Lutken, I. c, p. 138, with figure, and p. I. 



Habitat. — Rios das Velhas and Doce south to Ribeira do Iguape and ? Rio 



Grande do Sul. 



7594, C. M., four, 71-87 mm. Rio das Velhas. May 13, 1908. Haseman. 



7550, C. M., one, 133 mm. Burmier. May 14, 1908. Haseman. 



7075, C. M., fourteen, 74-120 mm. Rio Doce. May 25 and 27, 1908. Haseman. 



