88 



MEMOIRS OF THE CARNEGIE MUSEUM. 



6870a, C. M., one, 28 mm. Barreiras, Lagoa of Rio Grande, San Francisco 



basin, Jan. 3 or 4, 1908. Haseman. 

 6871a-o, C. M., fifteen, largest 46 mm. Sao Joao del Rei, May 17, 1908. 



Haseman. 

 6872a-d, C. M., four, largest about 48 mm. Sao Joao del Rei, May 17, 1908. 



Haseman. 

 6874a, C. M., one, 38 mm. Penedo, March 22, 1908. Haseman. 

 6873a, C. M., one, 40 mm. Queimadas, Rio Itapicuru, March 2, 1908. 



Haseman. 

 6878a, C. M., one, 48 mm. Iporanga, Dec. 1, 1908. Haseman. 

 This species is very closely allied to pequira, differing in the characters noted 

 in the key. It is almost identical in characters with Odontostilbe microcephala. 



Fig. 32. Holesthes heterodon Eigenmaim. a, maxillary; b, premaxillary; c, mandible. 



Head 4.25-4.75; depth 3-3.5; D. 11, very rarely 10; A. 19-24 most frequently 

 20 in specimens from Jaguara and Bebedouro; most frequently 22 in specimens 

 from Pirapora and Sete Lagoas of the San Francisco basin. Scales 5 or 6--/, 

 ¥, ff, -3^4 (35 being more frequent in the specimens from the San Francisco; 

 36 more frequent in specimens from Jaguara and Bebedouro). Eye 3 in head, 

 equal to interorbital ; depth of caudal peduncle 2.5 in the depth, 1.5-1.75 in its 

 length. 



Compressed, elongate; the dorsal and ventral profiles equally arched; pre- 

 ventral area flat or rounded, with about thirteen scales; predorsal rounded, with 



