356 CALIFORNIA ACADEMY OF SCIENCES. 



dd. A. 6; space between cavity of mouth and base of pectoral with 

 irregular plates; barbels none. Outer caudal rays greatly pro- 

 duced; caudal with a longitudinal dark stripe on each lobe. 



carinata 296. 



cc. Belly with three series of plates; eye 3 in the interorbital; eight 



shields between dorsal and occipital; fins spotted; caudal with a 



dark blotch at its base and another on its posterior margin. D. I, 



6; A. I, 5; V. I, 4; P. I, 6; Lat. 1. 31-32. (Steindachner.) kneri 297. 



bb. Margin of snout with bundles of bristles; three longitudinal series 



of plates on the belly; snout acuminate. Brownish, fins light brown, 



spotted with darker, upper caudal lobe with a longitudinal stripe. 



D. I, 6; A. 6. (Kner.) oxyrrhynchus 298. 



aa. Upper angle of gill-opening equidistant from tip of snout and origin 



of dorsal; margin of snout granular; eye 4 in interorbital; thorax and 



belly with two series of large scutes; fins with brown dots. D. I, 6; 



A. 6; Lat. 1. 34. amazona 299. 



aaa. Upper angle of gill-opening much nearer tip of snout than to origin 



of dorsal; margin and tip of snout with fine bristles; belly with two 



series of scutes; fins spotted with darker. D. I, 6; A. I, 5. (Kner.) 



acus 300. 



295. Farlowella gladiola. 



Acestra gladiolus Giinther, Cat. Fish. Brit. Mus. v, 261, 1864 (Kiver 



Cupai). 

 Farlowella gladiola Eigenm. & Eigenm. Proc. Cal. Acad. Sci. 2d 



Ser. ii, 33, 1889. 

 Habitat: Kio Cupai. 



296- Farlowella carinata, 



Farlowella carinata (Garman) Eigenm. & Eigenm., 1. c. 32, 1889' 

 (Santarem; Teffe; Gurupa; Obidos; Jutahy; Tabatinga). 



Probably several of the species enumerated under the 

 genus Farlowella will prove to be mere synonmys. The 

 characters of the species here described are very variable 

 but the variation does not seem to be in the direction of 

 any of the other species. 



Fifteen specimens .10-.22 m. to base of caudal. San- 

 tarem; Teffe; Gurupa; Obidos; Jutahy; Tabatinga. 



Body little depressed, subterete; tail much depressed; 

 snout long, greatly variable in length in specimens from 

 different localities, the upper margin of the gill-opening 

 equidistant from tip of snout and posterior end of the 

 base of the dorsal fin, or from the posterior margin of 



