eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 279 



Type, Pyrrhulina filamemtosa Cuvier and Valenciennes. 



Small fishes. Premaxillary and dentary with two or more series of conical 

 teeth; mouth very oblique. 



135. Pyrrhulina filamentosa Cuvier and Valenciennes. 

 Pyrrhulina filamentosa Cuvier and Valenciennes, Hist. Nat. Poiss., XIX, 1846, 



535 (Surinam).— Gunther, Catalogue, V, 1864, 286 (Essequibo) .— Stein- 



dachner, SB. Akad. Wiss. Wien, LXXII, 1875, —(Cayenne).— Eigenmann, 



Repts. Princeton Univ. Exp. Patagonia, III, 1910, 428. 



This species is very abundant in all brooks. Judging from the size, it reaches 

 its highest development some distance from the coast. 



Thirty-five specimens, 38-86 mm. Aruataima. (C. M. Cat. No. 1893a-e; 

 I. U. Cat. No. 12171.) 



One hundred specimens, 36-106 mm. Holmia Creek. (C. M. Cat. No. 

 1894o-m; I. U. Cat. No. 12172.) 



Fifty specimens, 29-85 mm. Savannah Landing. (C. M. Cat. No. 1895a-e; 

 I. U. Cat. No. 12173.) 



Four specimens, 36-40 mm. Two hours below Holmia, (C. M. Cat. No. 

 1896a-o; I. U. Cat. No. 12205.) 



Seven specimens, 40-57 mm. Tukeit. (C. M. Cat. No. 1897a-b; I. U. Cat. 

 No. 12174.) 



Two specimens, 38-53 mm. Erukin. (C. M. Cat. No. 1898a; I. U. Cat. No. 

 12175.) 



Two specimens, 38-54 mm. Konawaruk. (C. M. Cat. No. 1899a; I. U. Cat. 

 No. 12176.) 



One specimen, 53 mm. to base of caudal. Wismar. (C. M. Cat. No. 1900a.) 



Seventy-five specimens, 21-84 mm. Christianburg Canal and small pools. 

 (C. M. Cat. No. 1901a-j; I. U. Cat. No. 12177.) 



Two specimens, 41-55 mm. Rockstone. (C. M. Cat. No. 1902a; I. U. Cat. 

 No. 12178.) 



Twenty-two specimens, 39-57 mm. Gluck Island. (C. M. Cat. No. 1903a-e; 

 I. U. Cat. No. 12179.) 



Fourteen specimens, 64-96 mm. Nickaparoo. (C. M. Cat. No. 1904a-e; 

 I. U. Cat. No. 12180.) 



Twenty-nine specimens, 40-115 mm. Kumaka. (C. M. Cat. No. 1905a-e; 

 I. U. Cat. No. 12181.) 



Two specimens, 47 mm. Georgetown trenches. (C. M. Cat. No. 1906a; I. U. 

 Cat, No. 12182.) 



