14 FRESH- WATER FISHES OF SOUTH AMERICA — EIGENMANN. 



16. Curimatns* 44 sp. and var. 



17. Procliilodus* 22 sp. 



18. Lei)orinus 28 sp. 



19. Tetragonopteriis* 71 sp. 



Sixteen other species in Cen- 

 tral America to United States. 



20. Cheirodon* 9 sp. 



21. Brycon* 34 sp. 



22. Xiphoiampluis 12 sp. 



23. Astrouotus 38 sp. 



Many species in Central Amer- 

 ica and Mexico. 



24. Creniciclilat 27 sp. 



25. Geophagust 22 sp. 



Average number of species to each geuus, IS-f. 



III. 



Genera having representatives in the rivers from the LaPhita to the 

 Eio Magdalena, exclusive of those of southeastern Brazil. Those not 

 yet recordetl from the Magdalena marked with an asterisk (*) : 



1. Pseudoplatystoraa .... 7 sp. and var. 



2. Piatystoma I sp. 



3. Doras 24 sp. 



4. Oxydoras 4 sp. 



5. Stegopliilus 6 sp. 



6. Hemiancistrus IT sp. 



7. Ancistrus 8 sp. 



9. Hemiodus' 10 sp. 



10. Parodon ^ 3 sp. 



11. Anostomus * 10 sp. 



12. Cbalciuus 9 sp. 



13. Gasteropelecus * 4 sp. 



14. R;eboides 8 sp. 



15. Cynopotonms 7 si). 



16. Pygoccutrus 7 sp. 



17. Serrasalmo 14 sp. 



18. Myletes* 31 sp. 



19. Sternarclius* i) s-p. 



20. Sternopygus 6 sp. 



21. Carapus 1 sp. (described as 7.) 



Average number of species to each genus, 9.25. 



IV. 



Genera with representatives on both slopes of the Andes : 



1. Rliamdia » 22 sp. 



2 Pimelodella^ 12 sp. 



3. Cetopsis^ 6 sp. 



4. Pygidium" 25 sp. 



5. Loricaria' 31 sj). 



6. Plecostomus* 28 sp. and var. 



7. Cl];etostonms 20 sp. 



8. Macrodon 2 sp. 



9. Curimatus ^ 43 sp. and vars. 



10. Tetragonopterns'" 71 sp. 



(Others in Central America, etc. ) 



11. Cheirodon" 9 sp. 



12. Brycon '^ ." 34 sp. 



Two additional sp. in Central America. 



Average number of species to each genus, 25^. 



' H. nnimaculatus in the Cnjaba. 

 - Only in the La Plata, San Francisco and Amazons. 



^ Cinerascens Guayaquil; Esraeraldas. fVa'jneri, east and west slopes of Panama. 

 •• Modesius, western Ecuador, eastern Panama ; elongatus, western Ecuador. 

 ^ Occideiitalis, Guayaquil. 

 •> Many species; Alpine forms. 



^Several species at Panama, both eastern and western slopes. 

 " Spinosissimus, Guayaquil. 



'^ TroscheUi, Guayaquil; western Andes of Ecuador. 



^oBrevirostris, western Andes of Ecuador; microjyhthalmHS, Rio Rimac; polyodon, 

 Guayquil. 



'^Pisciculus, Santiago, Chili. 

 ^'^Atrlcaudatus, western Andes of Ecuador. 



