EIGENMANN: the freshwater fishes of BRITISH GUIANA 



267 



Table of Scales in the Lateral Line of C. schomburgki. 



Koreabo Rubber Plantation. 



No. 

 (C. 

 (C. 



(C. M. Cat. No. 2072a-e; I. U. 

 Morawhanna. (C. M. Cat. No. 

 Mora Passage. (C. M. Cat. No. 



Besides the type in the British Museum and the specimens mentioned by 

 Miiller and Troschel, and by Cuvier and Valenciennes, I have examined: 



Twenty specimens, 77-215 mm. Wismar. (C. M. Cat. No. 2068a-e; I. 

 U. Cat. No. 12256.) 



Twenty-three specimens, 95-260 mm. Lama Stop-Off. (C. M. Cat. 

 2069a-e; I. U. Cat. No. 12257.) 



Seventy-five specimens, 77-225 mm. Koreabo Rubber Plantation. 

 M. Cat. No. 2075a-j; I. U. Cat. No. 12258.) 



Twenty-four specimens, 85-145 mm. 

 M. Cat. No. 2071a-c; I. U. Cat. No. 12259.) 



Ten specimens, 120-158 mm. Issororo. 

 Cat. No. 12260.) 



Twenty-three specimens, 57-90 mm. 

 2073a-e; I. U. Cat. No. 12261.) 



Six specimens, 45-68 mm. Creek in 

 2074; I. U. Cat. No. 12269.) 



One specimen, 139 mm. Mud-flats below Wismar. (C. M. Cat. No. 2075.) 



Eight specimens, 96-145 mm. Maduni Creek. (C. M. Cat. No. 2076a-d; 

 I. U. Cat. No. 12262.) 



Three specimens, 187-255 mm. Botanic Garden. (C. M. Cat. No. 2085a-6; 

 I. U. Cat. No. 12271.) 



Four specimens, 54, 59, 187 and 255 mm. Georgetown trenches. (C. M. 

 Cat. Nos. 2077a and 2084a; I. U. Cat. Nos. 12270 and 12263.) 



One specimen, 80 mm. Christianburg. (C. M. Cat. No. 2078a.) 



Head 3-3.28; depth 2.25-2.6; D. 11 or 12; A. 10 or 11; scales 13 to 15-54'° 

 to 63-8; eye 1 in snout, 3.25 in head, 1-1.6 in interorbital. 



Compressed; dorsal profile high, depressed over the eyes; preventral area flat, 

 angulated on the sides, postventral area with a median keel; predorsal area nar- 

 rowly rounded, scaled; a triangular adipose area from near the edge of the opercle 

 ™ In one case 51. 



