eigenmann: fresh water fishes. 251 



first ray sickle-shaped, slightly prolonged. Dark yellowish, more or less 

 regularly spotted with darker, dorsal and caudal and pectorals irregularly 

 blotched with black. D. (13) 15; A. 6. 



Some of the cotypes are more robust in body ; in one the anal is 

 blotched like the caudal ; in some the spots form regular series along the 

 sides leaving lighter stripes between them. 



13. Hatcheria areolata (Cuvier & Valenciennes). 



(Plate XXXIV, Fig. 2.) 



Trichomyctents ayeolatus Cuvier & Valenciennes, Hist. Nat. Poiss., 

 XVIII, 492, 1846 (Coast of Chili); Guichenot, in Gay Hist. Chile, 

 Zool., II, 309, 1848; Giinther, Cat. Fish. Brit. Mus., V, 274; Delfin, 

 Catalogo de los Feces de Chile, 30, 1901 ; Fhilippi, Mb. Akad. Wiss. 

 Berlin, 1866, 714. 

 PygidiHiii areolatmn Eigenmann & Eigenmann, Froc. Cal. Acad. Sci., 

 2d sen, II, 51, 1889 (Rio Mapocho) ; id. South American Nematog- 

 nathi, 330, 1890 (Mapocho) ; Berg, An. Mus. Nac. Buenos Aires, IV, 

 143, 1895 (Coidola) ; Evermann & Kendall, Froc. U. S. Nat. Mus. 

 XXXI, 86, 1906 (Rio Comajo ; tributary of Lake Traful ; tributary 

 of Rio Limay). 

 Thrichomycterns maculatiis Girard, in part, U. S. Naval and Astronomical 

 Expedition 243, 1855 (Mapocho). 

 Elongate, subterete. Lips and lower surfaces of head thickly covered 

 with small warts. Gill-openings continued forward to below the eye, the 

 membranes free from the isthmus. Upper maxillary barbels reaching to 

 the pectorals. Fectorals rounded, the first ray not prolonged ; origin of 

 dorsal slightly in front of the vent, equidistant from tip of caudal and 

 occiput, its last ray over the fourth ray of the anal. Caudal very 

 slightly emarginate. Distance of anal from the base of the caudal 5 in 

 the length. Origin of the ventrals equidistant between tip of snout and 

 middle of caudal ; tips of the ventrals not reaching the vent. 

 Light brown, with purple longitudinal streaks. 

 Head 5! (6f in the total) ; depth 8-} ; D. 14; A. 8. 

 Based on a specimen in the Museum of Comparative Zoology. 



