146 MEMOIRS OF THE CARNEGIE MUSEUM. 



cc. Greatest depth of the licad l.S to 2 in its length; interorbital 4 or more in the snout. 



leptorhynchus. 

 bb. Snout blunt, interorbital distance less tlian 4.75 in the head. 



d. Rather slim; flesh-color to light gray, entirely covered with numerous fine dark chromatophorcs. 



hasemani. 

 dd. Robust; ground-color dead black; two white bands circling the body, one at the base of the 



caudal, and another near the end of the anal; forehead more or less wliite albifrons. 



aa. Scales above lateral line large, in not to exceed eight rows bonaparti. 



17, Sternarchus brasiliensis Reinhardt. 



Sternarchus brasiliensis Reinhardt, Vidensk. Meddel. Naturh. Forcn. Kjobcnh., 

 1852, or Wiegm. Arch., 1854, 182 (Rio das Velhas); Gunther, Cat., VIII, 

 3, 1870 (Rio das Velhas); Steindachner, Flussf. Siidam., Ill, 14, 1881 (Rio 

 das Velhas); Eigenmann and Eigenmann, Proc. U. S. Nat. Mus., XIV, 

 1891, 61 (Rio das Velhas); Eigenmann and Ward, Proc. Wash. Acad. Sci., 

 VII, 162, 1905 (southeastern Brazil); von Ihering, Os Peixes do Brazil, 

 Part 1 A, 1907 (Rio Piracicaba; Rio Sapucay; Rio Tiete); Eigenmann, 

 Repts. Princeton Univ. Exp. Patagonia, III, 1910, 448 (Rio San Francisco, 

 Parand, and Paraguay) . 



Sternarchus albifrons Eigenmann and Norris, Revista Museu Paulista, IV, 349, 

 1900 (Piracicaba) ; not of Linnaeus. 



3190 C. M., two, 250-290 mm. Pirapora, Dec. 15, 1907, Haseman. (Pira- 

 pora is on the Rio San Francisco, just above the mouth of the Rio das 

 Velhas.) 

 Head 7.25 to 8, depth about 9.25 in the length to the end of the anal ; anal rays 



184 and 194. Snout 2.3 to 2.4, interorbital a little more than 5.5 in the head; eye 2 



to 3.1 in the interorbital, about 6.25 in the snout, and 13 or 14 in the head; 11 to 



16 rows of scales above lateral line. 



Body and head compressed; width of the head 2 to 2.25, depth of the head at 



the base of the occipital process about 1.25 in the greatest depth; anus on the 



vertical from a point twice the eye behind the eye; dorsal profile weakly convex, 



ventral almost straight; top of head sloping rather abruptly. 



Snout moderate, rather cjdindrical and truncate on the end; mouth large; 



gape long, almost reaching the vertical from the eye; lower jaw included in the 



sides; jaws about equal, both with teeth; eyes small. 



Caudal 1.2 to 2 in the snout; origin of the anal on, or in front of, the vertical 



from the gill-opening; pectorals about 2 in the head. 



General color dark brown, lighter ventrally; caudal black with a white spot 



at its base; anal and pectorals hyaline. 



This species seems to have arisen in the Serra da Matto da Corde, in the State 



of Minas Geraes, Brazil, as it is found only in and about these mountains. 



It is known only from the Rio das Velhas, the upper Rio San Francisco and 



the portions of the Rios Piracicaba, Sapucahy, and Tiete nearest the Serra da 



Matto da Corde. 



