EIGENMANN: the freshwater fishes of BRITISH GUIANA 417 



Three specimens 237-330 mm. C'hipoo Creek, a branch of the Ireng. (C. M. 

 Cat. No. 2187a-6; I. U. Cat. No. 12347.) 



Two specimens, 100 mm. Aruataima. (C. M. Cat. No. 2188; I. U. Cat. 

 No. 12348.) 



Nine specimens, 108-440 mm. Holmia. (C. M. Cat. No. 2189a-d; I. U. 

 Cat. No. 12349a-d.) 



Four specimens, 101-180 mm. Maduni Creek. (C. M. Cat. No. 2190a-6; 

 I. U. Cat. No. 12352.) 



Sixteen specimens, 90-425 mm. Lama Stop-OiT. (C. M. Cat. No. 2191a-c; 

 I. U. Cat. No. 12353.) 



Six specimens, 65-217 mm. Botanic Garden. (C. M. Cat. No. 2192a-c; 

 I. U. Cat. No. 12354.) 



Eighteen specimens, 119-400 mm. Georgetown trenches. (C. M. Cat. No. 

 2193a-rf; I. U. Cat. No. 12355.) 



Three specimens, 102-165 mm. Nickaparu. (C. M. Cat. No. 2204a-6; I. U. 

 Cat. No. 12356.) 



Five specimens, 80-155 mm. Kumaka. (C. M. Cat. No. 2195a-c; I. U. 

 Cat. No. 12357.) 



One specimen, 280 mm. Wismar. (C. M. Cat. No. 2203a.) 



One specimen, 135 mm. Below Wismar. (C. M. Cat. No. 2196.) 



Two specimens, 251-265 mm. Mora Passage. (C. M. Cat. No. 2197a; I. U. 

 Cat. No. 12358.) 



Eighteen specimens, 110-295 mm. Aruka River. (C. M. Cat. No. 2198a-d; 

 I. U. Cat. No. 12359.) 



Four specimens, 57-120 mm. Savannah Landing. (C. M. Cat. No. 2199 

 a-b; I. U. Cat. No. 12350.) 



One specimen, 176 mm. Waratuk. (C. M. Cat. No. 2200.) 



Twelve specimens, 42-254 mm. Amatuk. (C. M. Cat. No. 2201a-c; L U. 

 Cat. No. 12351.) 



One specimen, 113 mm. Creek below Potaro Landing. (C. M. Cat. No. 

 2202.) 



Head 3-3.4; depth 4.3; D. 14, rarely 15 or 13; A. 10-11; lateral line 38 

 or 39 in lower Potaro specimens, usually 41 or 42 elsewhere." 



Eye 7 in the head in specimens 200 mm. and larger, 5-6 in specimens 100- 

 200 mm.,"-' 4.3-5 in specimens 50-100 mm., 2.4 in the interorbital in specimens 



'^' Of those examined five have 40, fourteen have 41, seventeen have 42, six have 4.3, and two have 44. 

 ^^ 4.5 in the specimens from Crab Falls. 



