400 TATACONIAN HXPI- 



.'\20. Pygidiutii eigciniiaiiiii ( Houlenger) , 

 Roll. .Mus. Torino, XIII. 

 Pygidiutii hiurii Eigenmann & Eigen- 



mann, iioii Stcindachner. 

 Habitat : Cumbaca. 

 .\2i. Pygidiuiii vittatiiiii (Regan), 



Regan, 1903. 

 Habitat: Marcapata Valley, Eastern 

 Peru. 

 A22. Pygidium dispar (Tschudi), 



E. & E., 335- 

 Habitat: Eastern and western slopes of 

 Ecuador. 



23. Pygidium punctulatum (Cuvier & 



Valenciennes) \\. & E., 336. 



Habitat: Western slopes of Peruvian 

 Andes. 



24. Pygidium buriiwistcii Berg iSQS- 



Habitat: Mendoza, Argentina. 



25. Pygidium goeldii (Roulenger), 



Boul., 1896. 

 Habitat: Rio de Janeiro. 



26. Pygidium retro [>iuuis (Regan), 



Regan, 1903. 

 Habitat: St. Augustine, Andes of Co- 

 lombia, 5,000 feet. 



27. Pygidium nigroiiiaculatuiii (Boulen- 



ger), E. & E., 336. 



Habitat : Colombia. 



28. Pygidium pardus (Cope), 



E. & E., 337. 

 Habitat: Jequetepeque; Callao Bay. 

 A29. Pygidium immaculatum Eigenmann 



& Eigenmann E. & E., 337. 



Habitat: Juiz de Fora ; Sao Matheos; 

 Goyaz. 

 .\30. Pygidium inc^anoivskii (Steindach- 



ner), E. & E., 338. 



Habitat: Rio de Huambo; Rio de Tor- 

 tora. 

 31. Pygidium nigricans (Cuvier & Valen- 

 ciennes) E. & E., 338. 



Habitat: Santa Catharina. 

 A32. Pygidium lUiuraouicum (Stcindach- 

 ner), E. & E., 338. 



Habitat: Cudajas. 



DITIONS : ZOOLOCV. 



33. Pygidium borcllii (Boulenger). 



Habitat: Bolivian Chaco; Salta Argen- 

 tina. 



34. Pygidium quechuorum Stcindachner, 



St., 1902, 49. 

 Habitat: .\rcquiba, Peru. 



35. Pygidium /'roofs Ribciro, Ribeiro, 1908. 



Habitat: Rio Ribeira. 



36. Pygidium guiaiiciisis Eigenmann, 



E., 1909, II. 

 Habitat : Potaro River, British Guiana. 

 .i7- Pygidium barbouri Eigenmann MS. 

 Habitat: Rio Beni. 



Ekemoi'HII.us Humboldt. 



Thricomycterus Humboldt ; Trachypoma 

 Giebel. 

 Type: Eremopliilus iiiufisii Humboldt. 

 Range that of the single species. 

 I. Eremopliilus mutisii Humboldt, 



E. & E., 274. 

 Trachypoma marmorainiii Giebel. 

 Habitat : Bogota. 



Tridens Eigenmann & Eigenmann. 



Type : Tridens melanops Eigenmann & 



Eigenmann. 

 Range: Upper Amazons. 

 A I. Tridens melanops Eigenmann & Ei- 

 genmann. 

 Habitat: Iga. 

 A 2. Tridens brcvis Eigenmann S: Eigen- 

 mann. 

 Habitat : Tabatinga. 



PsEUlxisTKCOPiiiLUS Eigenmann & Eigen- 

 mann. 



Type : Stegopliilus nemurus Giinther. 

 Range that of the single species. 

 A I. Pseudostegophilus nemurus (Giinther), 

 E. & E., 341. 



