EIGENMAJSTN: the freshwater fishes of BRITISH GUIANA 



99 



AsprediiiidiB 



Silurida3: 



Pimelodiiife 



Doradinae 



Auchetiipterinae . . 



Ageneiosin;p 



Helogeneidae 



Pygidiidse: 



Cetopsinae 



Pygidiinae 



Callichthyidae 



Loricariidae: 



Plecostominae . . . . 



Loricariinae 



Characidae: 



CurimatintB 



Prochilodinffi 



Heiniodince 



Chilodinae 



Nannostomatinae 



Anostomatinae . . . 



Leporinae 



Pyrrhulininae . . . . 



Crenuchinae 



Iguanodectinae . . . 



Tetragoiiopterinae 



Bryconinae 



Chalcininae 



Brachycalciiiinae . . 



Gasteropelicinae . . 



Serrasalminae . . . . 



Mylin* 



Characinae 



Acestrorhynchinae 



Erythrininae 



Gyninotidffi : 



Electrophorina3. . . 



Sternarchinae . . . . 



Hypopominae. . . . 



GjTiinotinK 



Poeciliidae 



Belonidae 



Scia}nidae 



Cichlidae 



Achiridae 



Species Below the 

 Kaieteur. 



13 

 5 

 2 

 I 

 I 



2 

 2 



2 



4 

 2 



2 

 1 

 2 

 1 

 6 

 3 

 6 

 1 

 1 

 1 

 30 

 2 

 1 

 I 

 2 

 2 

 3 

 3 

 2 

 4 



I 



4 

 6 

 1 

 2 

 1 

 I 

 13 

 2 



Species Above the 

 Kaieteur. 



10 



4(5?) 

 

 

 



1 







1 



(2?) 

 



2 



1 



2 



1 



2(3?) 



3 



6 



(1?) 

 

 1 

 23(26?) 

 1(2?) 

 



1(2?) 







1 







2 



3(4?) 



5(6?) 



1 











1 



1 



2 



1 



4 

 



r2? 



i(: 







1 

 1 



5 

 2 



3(or4?) 

 1 

 

 



12(15?) 

 0(1?) 

 

 



(1?) 





 

 

 2 



1(4?) 



140 



87(102?) 58(71?) 







2(3?) 

 

 

 



1 







I 







3 

 



2 

 

 1 

 



1 







3 



I 



1 







9(11?) 



1 











(1?) 

 

 

 



1 



2(4?) 











1(2?) 



1 



2 











3(4?) 







36(44?) 



I 

 

 

 



1 







1 

 1 



2 

 





 

 

 

 

 

 

 1 

 I 

 

 5 

 

 

 

 

 

 

 

 

 3 





 

 2 

 1 

 1 

 

 

 3 

 



23 



2. Whence did the fauna of the plateau come? 



A. Is it the nucleus of the original fauna of Guiana? Or 



B. Have the faunas on the plateau and the lowland developed from a 



common nucleus? Or 



C. Is it a relict of a more abundant modern fauna? Or 



D. Does it consist of recent immigrants? Or 



E. Is it a mixture? 



To assist in answering these questions I give the species of the plateau with 

 their distribution in the Potaro and also their general distribution in South America. 



