FISHES OF THE FAMILY LOKICAEIID^. 289 



a patch of small granular plates in front of each gill-opening ; abdomen with 1 or 2 

 series of plates between the lateral series ; anal plate bordered anteriorly by 2 or 8. 

 First dorsal ray as long as the head ; pectoral spine not extending to base of ventral ; 

 ventrals rounded, the second and third branched rays the longest, the spine not 

 produced; uppermost caudal ray elongate. Breadth of body at level of first anal ray 

 about 4 times in the distance from that point to the caudal. Olivaceous; dorsal and 

 caudal with dark spots on the rays ; pectoral and ventral blackish ; anal pale, 

 immaculate. 



Total length 230 mm. 



Four specimens : Paraguay. 



25. Loricaria SPIXII. 



Loricaria spixii Steind. Denkschr. Ak. Wien, xliv. 1881, p. 4, pi. ii. ; Eigenni. & Eigenm. Proc 

 Cal. Ac. (2) ii. 1889, p. 37, and Occ. Pap. Cal. Ac. i. 1890, p. 372. 



Length of head 44- times in the total length. Breadth of head 1^- times in its 

 length, diameter of eye 8 times, interorbital width 4 times, length of snout twice. 

 Upper jaw with 3 or 4 minute teeth on each side, lower jaw with 5-6. 32 scutes in 

 a longitudinal series, 22 + 10. First dorsal ray as long as the head; pectoral spine 

 extending a little beyond base of ventral; caudal emarginate, the upper lobe the 

 longer. Dorsal with the posterior half of each interradial membrane blackish ; pectoral, 

 ventral, and caudal blackish. In other characters similar to L. lahialis. 



Total length 260 mm. 



Three specimens : South-eastern Brazil. 



26. Loricaria anus. 



Loricaria anus Cuv. & Val. Hist. Nat. Poiss. xv. p. 470 (1840) ; Val. Voy. d'Orbigny, Poiss. 

 pi. vi. fig. 1 (1847) ; G unth. Cat. Fish. v. p. 258 (1864) ; Hensel, Arch. Nat. 1870, i. p. 77 ; 

 Eigenm. & Eigenm. Proc. Cal. Ac. (2) ii. 1889, p. 38, and Occ. Pap. Cal. Ac. i. 1890, 

 p. 374. 



Length of head 4 times in the total length. Breadth of head 1^ (adult) -14; (youn») 

 in its length, diameter of eye 6^- 13 times, interorbital width 3^ (adult) -4f (young) 

 times, length of snout twice. Upper jaw with about 5 minute teeth on each side, 

 lower jaw with about 10. 34-36 scutes in a longitudinal series, 29-34+2-5. First 

 dorsal ray nearly as long as the head; pectoral spine extending to base of ventral; 

 caudal emarginate, the upper lobe the longer. Uniform brownish ; dorsal and caudal, 

 in the young, with dark spots on the rays. In other characters similar to L. labialis. 



Total length 450 mm. 



Four specimens (including one of the types of the species) : Southern and Eastern 

 Brazil. 



2 q2 



