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Indiana University Studies 





Panama 



Atlantic 



Pacific Slope 





Chagres basin. 



Pacific slope of 

 Canal Zone. 



Chepo basin. 



Tuyra basin. 



Atrato basin. j 



Magdalena basin. 



San Juan basin. | 



Dagua basin. 



Patia to Santiago 



Esmeraldas to | 

 Portoviejo. | 



Guayaquil basin. 



Paita, Chira, and i 

 Piura basins. 1 



Pacasmayo. 



































- 



- 



- 







- 





- 



? 



- 

































379. Gobioides peruanus (St.) 























- 

















— 



















381. Batrachoides pacifici G 





























382. Citharichthys gilberti J. and E 





























383. Achirus klunzingeri (St ) 





























384. Achirus nschen (M.) 

























































Totals 



51 



38 



43 



52 



72 



162 



71 



46 



49 



22 



64 



10 



11 







21 



Per cent of the total number (388) 

 of species, about 



13 



9.5 



11 



13.4 



18 



44 



18 



12 



12.6 



51 



16 



2.6 



2.8 











21 From the above list two species recorded by Pellegrin from Santo Domingo de los 

 Colorados in the Esmeraldas or Guayas basins have been omitted. They are Gam- 

 busia pelegrini E., Ancistrns bnfonins C. and V. The total number for Esmeraldas 

 to Portoviejo or for Guayaquil should be increased by two, depending on whether 

 Santo Domingo de los Colorados lies in the one basin or the other. These two 

 species with 71a brings the total number of species and varieties to 388. 



