146 MEMOIRS OF THE CARNEGIE MUSEUM. 
ce. Greatest depth of the head 1.8 to 2 in its length; interorbital 4 or more in the snout. 
leptorhynchus. 
bb. Snout blunt, interorbital distance less than 4.75 in the head. 
d. Rather slim; flesh-color to light gray, entirely covered with numerous fine dark chromatophores. 
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 white....... albifrons. 
aa. Scales above lateral line large, in not to exceed eight rowS...........---eeeeecceeeseececees bonaparti. 
17. Sternarchus brasiliensis Reinhardt. 
Sternarchus brasiliensis ReinHARDT, Vidensk. Meddel. Naturh. Foren. Kjébenh., 
1852, or Wiegm. Arch., 1854, 182 (Rio das Velhas); Gtnruer, Cat., VIII, 
3, 1870 (Rio das Velhas); STEINDACHNER, Flussf. Stidam., III, 14, 1881 (Rio 
das Velhas); EIGENMANN AND EIGENMANN, Proc. U. 8. Nat. Mus., XIV, 
1891, 61 (Rio das Velhas); E1GENMANN AND Warp, Proc. Wash. Acad. Sci., 
VII, 162, 1905 (southeastern Brazil); von Jnaerine, Os Peixes do Brazil, 
Part 1 A, 1907 (Rio Piracicaba; Rio Sapucay; Rio Tieté); HE1GeNMANN, 
Repts. Princeton Univ. Exp. Patagonia, III, 1910, 448 (Rio San Francisco, 
Parana and Paraguay). 
Sternarchus albifrons EIGENMANN AND Norris, Revista Museu Paulista, IV, 349, 
1900 (Piracicaba); not of Linneeus. 
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 cylindrical 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 Tieté nearest the Serra da 
Matto da Corde. 
