2S0 



MEMOIRS OF THE CARNEGIE MUSEUM. 



east of the Andes, belong to H. areolata, the definitely known habitat of which is 

 the western slope of Central Chile. 





Fig. 4. Hatcheria areolata (C. & V.) after Eigenmann. 

 Zool., 103 mm. Mapocho, Chile. 



From a specimen in the Mus. Comp. 



Head 5.75; depth 8.5; D. 14; A. 8. Elongate, subterete. Lips and lower sur- 

 faces of the head thickly covered with small warts. Gill-openings continued for- 

 ward to below the eye, the membranes free from the isthmus. Upper maxillary 

 barbels reaching to the pectorals. Pectorals rounded, the first ray not prolonged; 

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

 put, its last ray over the fourth ray of the anal. Caudal very slightly emarginate. 

 Distance of anal from the base of the caudal five times in the length. Origin of the 

 ventrals equidistant from tip of snout and middle of caudal; tips of the ventrals not 

 reaching the vent. Light brown, with purple longitudinal streaks. 



5. Hatcheria burmeisteri (Berg.) 



Pygidium burmeisteri Berg, An. Mus. Nac. de Buenos Aires, IV, 1895, p. 128, 



Lam. 2, fig. 1 (Rio Mendoza); Eigenmann, Reports Princeton Univ. Exped. 



Patagonia, III, 1910, p. 400. 

 Trichomycterus burmeisteri Boulenger, Ann. & Mag. Nat. Hist. (7), IX, 1902, p. 



336 (Palmira, Rio Mendoza, 900 m.). 



Habitat. — Province Mendoza, Argentina, elevation 900 meters. 



Known from the type and the specimen recorded by Boulenger. 



Reaches a length of at least 260 mm. 



Fig. 5. Hatcheria burmeisteri Berg. After Berg. 



Head 7.5 (9 in total); depth 9 (10); D. 21; A. 7; P.10; eye in the middle of the 

 head; nasal barbel reaching to the eye, maxillary barbel scarcely to gill-opening; 

 head much longer than broad, depressed; interopercular spines numerous; pectoral 



