Henn: South American Pceciliid Fishes. Ill 



4632, C. M. Ten, 23-43 "''"''• Raiz da Serra, Sao Paulo. Haseman. 



4633, C. M. Six, 27-45 mm. Cubatao, Rio Cubatao, Sao Paulo. 

 Haseman. 



5821, C. M. Two, 52-56 mm., Iguape, Rio Ribeira da Iguape. 

 Haseman. 



7. Rivulus obscurus Garman. 



Rivnlus obscurus Garman, Mem. Mtis. Comp. Zool., XIX, 1895, p. 140; Pellegrin, 

 Bull. Mus. d'Hist. Nat. Paris, 1899, p. 157, (Rio Spuie); Regan, Ann. Mag. 

 Nat. Hist., (8), X, 1912, p. 502. 



5820, C. M. Four specimens, 27-30 mm. Manaos. Haseman. 



D. 5, A. 7, lat. 1. 29 in 2 specimens: D. 5, A. 8, lat. 1. 29 in another, 

 and D. 6, A. 9, lat. 1. 30 in the last. These agree in all respects with 

 the original description, except that the dorsal is completely posterior 

 to the anal. 



8. Rivulus punctatus Boulenger. 



Rivulus punctatus Boulenger, Boll. Mus. Torino, X, No. 196, 1895, p. 3 (Colonia 

 Risso); EiGENMANN, Proc. U. S. Nat. Mus., XXXII, 1907, p. 430; Eigenmann, 

 Repts. Princeton Univ. Exp. Patagonia, III, 1910, p. 454. 



* 4625, C. M. Two, 16 and 22 mm. Villa Hays, Paraguay. Hase- 

 man. 



4626, C. M. Nine, 14-30 mm., Urucum Mts., Corumba, Matto 

 Grosso. Haseman. 



4627, C. M. One, 24 mm. Puerto Suarez. Bolivia. Haseman. 



4628, C. M. One, 22 mm., Rio Santa Rita, into Rio Paraguay,. 

 IMatto Grosso. Haseman. 



With these is probably to be included, 4629, C. M., a specimen' 

 22 mm. long from the Rio Boa V'entura, Alatto Grosso of the Rio- 

 Guapore. 



These specimens agree very well with the description of Boulenger 

 D. 5-6; A. 1 1 ; P. 10; y. 5; lat. 1. 30-31 ; 9 transverse series of scales. 



Head 4, depth at anal origin 7; caudal peduncle 10. Finely spotted; 

 caudal with a number of cross-bars. 



9. Rivulus compressus Henn, sp. nov. (Plate XVHI, fig. i.) 

 5819, C. M. Type, unique, 55 mm. Manaos, Nov. 30, 1909. Hase- 

 man. 



This may be R. micropus Steindachner, but it seems to differ in the 

 more forward position of the dorsal, the longer head, etc. 



Head 4; depth 5.2; caudal peduncle 8 in the length; 2 in head. Eye 



