PISHES OF THE FAMILY LOEICAEIID^E. 305 



eye about 34 times, interorbital width 4j- 4f times. Length of produced part of snout 

 4—4^- times in the distance from its tip to the anus. Sides of head, in males, strongly 

 bristly. 33-34 scutes in a longitudinal series, 15-16 -f- 37-38 ; 8 or 9 between 

 snpraoccipital and dorsal ; abdomen without median series of plates, except 3 or 2 

 anteriorly. Fin-rays with dark spots; caudal with some large blackish blotches. 



Total length 3 40 mm. 



Four specimens : Venezuela. 



6. Farlowella amazokum. 



Acestra amazonum Giinth. Cat. Fish. v. p. 261 (1861). 



Farlowella carinata Eigenm. & Eigenm. Proc. Cal. Ac. (2) ii. 1889, p. 32, and Occ. Pap. Cal. Ac. 



i. 1890, p. 356. 

 Farlowella amazona Eigenm. & Eigenm. t. c. p. 33, and t. c. p. 358. 



Length of head 3-f -3^ times in the total length, distance from supraoccipital to base 

 of first dorsal ray 5-j- 5f times. Breadth of head 3f- of times in its length, diameter 

 of eye 35-20 times, interorbital width 4-f-5 times. Length of produced part of snout 

 3 times in the distance from its tip to the anus. Sides of head without bristles. 

 34 scutes in a longitudinal series, 34 + 20 ; 7 scutes between supraoccipital and dorsal. 

 Abdomen without median series of plates, except for one anteriorly ; region between 

 mouth and pectorals covered with small irregular plates. All the fin-rays with dark 

 spots ; each caudal lobe with a blackish stripe. 



Total length 210 mm. 



Two specimens: R. Amazon. 



7. Farlowella gladiolus. (Plate XX. fig. 2.) 



Acestra gladiolus Giinth. Cat. Fish. v. p. 261 (1864). 



Farlowella gladiola Eigenm. & Eigenm. Proc. Cal. Ac. (2) ii. 1889, p. 33, and Occ. Pap. Cal. Ac. 

 i. 1890, p. 356. 



Length of head 3—3^ times in the total length, distance from supraoccipital to base 

 of first dorsal ray 5f-G^ times. Breadth of head 5-5^ times in its length, diameter of 

 eye 18-20 times, interorbital width 6-§ — 7 times. Length of produced part of snout 

 2-g— 2-|- times in the distance from its tip to the anus. Sides of head without bristles. 

 33 scutes in a longitudinal series, 13-14 + 19-20 ; 7 between supraoccipital and 

 dorsal. Abdomen without median series of plates, except one anteriorly ; region 

 between mouth and pectoral with 4 series of plates, 3 in each series. All the fin-rays 

 with dark spots ; each caudal lobe with a blackish stripe. 



Total length 328 mm. 



Three specimens : Rio Cupai (Amazon System). 



