266 MEMOIRS OP THE CARNEGIE MUSEUM 



area narrowly rounded, with a median series of about nine scales; snout rounded, 

 the mouth inferior. Roof of mouth with a few inconspicuous ridges. 



Scales all cycloid, with two diverging striae; lateral line straight; fins all naked. 



The shape and size of the fins is as in C. spilurus. 



Highly iridescent, the fins brick-red in life. No distinct markings. 



123. Curimatus morawhannae sp. nov. (Plate XXIV, fig. 3.) 

 Type, 90 mm. Morawhanna. (Carnegie Mus. Catalog of Fishes No. 2122.) 

 Cotypes, fifty-one specimens, the largest 90 mm. Morawhanna. (C. M. 



Cat. No. 212la-i; I. U. Cat. No. 12303.) 



Cotj'pes, three specimens, 48-55 mm. Mora Passage. (C. M. Cat. No. 



2120a-6; I. U. Cat. No. 12302.) 



Very similar to C. microcephalus. Thirty-five or thirty-six scales in the lateral 



line; posterior half of lateral line with a dark streak, most intense toward its end; 



a black spot on the base of the middle dorsal rays; roof of mouth with numerous 



conspicuous flaps, lobes, and papilla?. 



124. Curimatus issororoensis sp. nov. (Plate XXXIV, fig. 4.) 



Type, 104 mm. Issororo Rubber Plantation. (Carnegie Museum Cat- 

 alog of Fishes No. 2119.) 



Cotypes, two specimens. Issororo Rubber Plantation. (C. M. Cat. No. 

 2123; I. U. Cat. No. 12301.) 



Very similar to C. moraivhannce, but lacking the dorsal spot. 



Head 4; depth 2.8; D. 11; A. 9; scales 5+-36-5. 



125. Curimatus schomburgki Gimther. (Plate XXXV, fig. 1.) 



" Cuticuru." 



Curimatus cyprinoides (? not of Linnseus) Cuvier and Valenciennes, Hist. Nat. 

 Poiss., XXII, 1848, 7 (Essequibo). — Muller and Troschel, in Schomburgk, 

 Reisen, III, 1848, 633 (Essequibo; Demerara; Rupununi). 



Curimatus schomburgkii Gunther, Catalogue, V, 1864, 291 (British Guiana; Dem- 

 erara). — Eigenmann and Eigenmann, Ann. N. Y. Acad. Sci., IV, 1889, 23 

 (Surinam); Proc. U. S. Nat. Mus., XIV, 1891, 48.— Fowler, Proc. Acad. 

 Nat. Sci. Phila., 1906, 303, fig. 8 (Surinam). — Eigenmann, Repts. Princeton 

 Univ. Exp. Patagonia, III, 1910, 422. 

 So far as known, this species is found in British Guiana and Surinam. It is 



very abundant in quiet waters, especially along the coast. About two hundred 



specimens were preserved. 



