eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 347 



Ten specimens, 51-84 mm. Malali. (C. M. ( 'at. No. 1382a-c; I. U. Cat, No. 

 11867.) 



Seven specimens, 68-94 mm. Mud-flats below Wismar. (C. M. Cat. No. 

 1383a-&; I. U. Cat. No. 11868.) 



Two specimens, 109-125 mm. Creek below Potaro Landing. (C. M. Cat. 

 No. 1384a; I. U. Cat. No. 11869.) 



Two hundred and sixty-nine specimens, 40-120 mm. Tumatumari. (C. M. 

 Cat. No. 1385a-z; I. U. Cat. No. 11866.) 



Nine specimens, 38-60 mm. Konawaruk. (C. M. Cat. No. 1386o-6; I. U. 

 Cat. No. 11870.) 



Fifty-six specimens, 27-89 mm. Crab Falls. (C, M. Cat, No. 1387a-,/'; 

 I. U. Cat. No. 11865.) 



One specimen, 85 mm. Rockstone. (C. M. Cat. No. 1388.) 



Twenty specimens, 22-50 mm. Cluck Island. (C. M. Cat, No. 1389a-/; 

 I. U. Cat. No. 11864.) 



Twenty-one specimens, 55-71 mm. Bartica. (C. M. Cat. No. 1390a-/; 

 I. U. Cat. No. 11871.) 



Two specimens, 69-70 mm. Koriabo Rubber Plantation. (C. M. Cat. No. 

 1391; I. U. Cat. No. 11872.) 



Eleven specimens, 43-54 mm. Mora Passage. (C. M. Cat. No. 1392a-c; 

 I. U. Cat. No. 11873.) 



This species is most readily distinguished from the other species of the genus 

 by its short maxillary, the number of scales in the lateral line, and the red caudal 

 spot, 



Creagrutus Giinther. 

 Creagrutus Gunther, Catalogue, V, 1864, 339. 



Type, Creagrutus mulleri Gunther. 



Minute fishes with the teeth of the lower jaw in a single series, those on the 

 premaxillary in three series; anal short, of not more than fourteen rays; lateral 

 line complete; caudal naked. 



208. Creagrutus melanzonus Eigenmann. (Plate XLV, fig. 1.) 



Creagrutus melanzonus Eigenmann, Ann. Carnegie Mus., VI, 1909, 30; Repts. 

 Princeton Univ. Exp. Patagonia, III, 1910, 435. 



Type, 44 mm. Crab Falls. (Carnegie Museum Catalog of Fishes No. 1067.) 

 Cotypes, two specimens, 27 mm. Warraputa. (C. M. Cat, No. 1068; I. U. 



Cat. No. 11753.) 



