LIST OF ILLUSTRATIONS. 



Plates. 



VI. (i) Native pulling a boat across rapids on the Upper 



Chagres. (2) Fishing party on the Rio Gatun. 

 VII. (i) Natives "poling" a boat across rapids on the Upper 

 Chagres. (2) Fishing party on a trail through the jungle. 

 VIII. (i) An Indian family of the Rio Tuyra Basin. The late 

 Dr. S. E. Meek in rear. (2) Scene on the Upper Chagres. 

 IX. Trachycorystes amblops (Meek & Hildebrand). 

 X. Lasiancistrus planiceps (Meek & Hildebrand). 

 XI. Leptoancistrus canensis (Meek & Hildebrand), type of a 



new genus. 

 XII. Loricaria capetensis Meek & Hildebrand, ventral view of 

 anterior part of fish. 



XIII. Oxyloricaria citurensis Meek & Hildebrand, ventral view. 



XIV. Hoplostemum punctatum sp. nov., side view. 

 XV. Hoplostemum punctatum sp. nov., ventral view. 



XVI. Cyclopiimi pirrense Meek & Hildebrand. 



XVII. Apareiodon dariensis (Meek & Hildebrand). 



XVIII. Pseudocheirodon affinis gen. et sp. nov., male. 



XIX. Bryconamericus cascajalensis sp. nov., male. 



XX. Hemibrycon dariensis sp. nov. 



XXI. Creagrutus notropoides Meek & Hildebrand. 



XXII. Rceboides guatemalensis (Gunther). 



XXIII. Rceboides occidentalis sp. nov. 



XXIV. Brycon petrosus Meek & Hildebrand. 



XXV. Brycon argenteus Meek & Hildebrand. 



XXVI. Stemopygus dariensis sp. nov. 



XXVII. Stemarchus rostratus Meek & Hildebrand. 



XXVIII. Cichlasoma tuyrense Meek & Hildebrand. 



XXIX. Cichlasoma calobrense Meek & Hildebrand. 



XXX, Cichlasoma umbriferum Meek & Hildebrand. 



XXXI. Neetroplus panamensis Meek & Hildebrand. 



XXXII. Hemieleotris latifasciatus (Meek & Hildebrand), type of a 

 new genus. 



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