ElGENMANN : Niu CHARACINS IN CARNEGI1 MUSEUM. I 7 -~> 



in the distance from its base to the dur--.il, bordered l>\ aboul three 

 scales on each side. Aboul aineteen teeth along three-fourths of the 

 free margin of the maxillary; premaxillary with two complete and 

 parallel series of teeth; two to four tricuspid and four conical teeth 

 in the outer series, six or seven tricuspid and one or two coni< al teeth 

 in the inner; aboul fifteen teeth in the dentary, the anterior tricuspid, 

 the lasl conical, those between graduated. Origin of anal and dorsal 

 aboul equidistanl from tip of snout and base of caudal. Pectorals 

 extending pasl origin of ventrals, ventrals past origin of anal; anal 

 slightly emarginate. Lateral line developed on eighl scales. Concen- 

 tric ridges numerous, radial striae few and obscure. A conspicuous 

 black spot, somewhat smaller than the eye, just in front of, or partly 

 on, the line joining origins of dorsal and anal, just above the urinary- 

 bladder; a conspicuous caudal spol occupying the entire end of the 

 caudal peduncle and continued up on the middle caudal rays; side>, 

 except just about the lateral spot and over abdominal cavity, 

 peppered. 



This species, resembling Phenacogaster micros! id as, is readily dis- 

 tinguished by the incomplete Literal line and the posterior portion ol 

 the lateral spot. 



12. Astyanax bimacu'atus novae var. nov. 



Plate VII, fig. 2. 



Thirteen specimens, 40-63 mm. C. M. No. 3278. Rio Sapon, Prazeres, Bahia, 

 Feb. 11, 1908. 



Thirteen specimens, 35-85 mm. C. M. Cat. No. 3279. Above Cachoeira da 

 Velha, de Rio Nova, Goyaz, Piabana. 



These specimens, agreeing with those from the Rio Sao Francisco 

 in the anal rays, differ in having a black lateral stripe replacing the 

 silvery band. The dark in the axils of the scales is also more con- 

 spicuous. A. 24 in three. 25 in four, 26 in three; lat. line 32 in one, 

 33 in two, 34 in three, 35 in lour. 



13. Astyanax mar onae sp. nov. 



Plate VII, fig. 3. 



Type. — One specimen, 54 mm. ('. M. No. 3353. Six miles from Fan Loniz de 

 Cacercs, May 23, 1909. 



Colypes. — Four specimens, 16 to 51 mm. C. M. No. 3354. Same place and 

 date. 



Colypes. — Five specimens, 43 to 50 mm. C. M. No. 3355. Corumba, April 27, 

 1909. 



