270 MR. C. TATE REGAN ON THE 
scutes, the caudal peduncle strongly depressed, with paired dorsal and yentral series of 
scutes, and posteriorly, at least, with only a single lateral series of scutes; lower part 
of clavicle and coracoid not exposed; no anterior rudimentary ray of ventral. 
Key to the Genera, 
I. Teeth in the jaws in small or moderate number, not setiform; a more or less distinct 
orbital notch. 
Snout rounded or pointed, not, or not much, produced. . . . . IIL. Loricaria L. 
Snout produced, with along rostrum . . . . . . . . . « 12. Hemiodontichthys Blkr. 
II. Teeth in the jaws numerous, setiform ; orbit circular, without distinct notch. 
Dorsal opposite to the ventrals. . . . . . . . . . =. . « 18. Oxyloricaria Blkr. 
Dorsal opposite to the anal. . . . «. . 2 ee ee +) OK Farlowella Eigmn. 
11. Loricarta. 
Loricaria (part.) Linn. Syst. Nat. (ed. x.) p. 307 (1758) ; Cuv. & Val. Hist. Nat. Poiss. xv. p. 453 
(1840) ; Kner, Denkschr. Ak. Wien, vi. 1853, p. 77; Giinth. Cat. Fish. v. p. 254 (1864) ; 
Higenm. & Higenm. Proc. Cal. Ac. (2) ii. 1889, p. 34, and Occ. Pap. Cal. Ac. i. 1890, p. 360. 
Loricariichthys Bleek. Ned. Tijd. Dierk. i. 1863, p. 80. 
Loricaria Bleek. 1. e. 
Pseudoloricaria Bleek. |. ec. 
Parahemiodon Bleek. 1. c. 
Hemiloricaria Bleek. t. ec. p. 81. 
Pseudohemiodon Bleek. |. c. 
Rineloricaria Bleek. 1. e. 
Body elongate; head depressed, with pointed or rounded snout; lower surface of 
head in great part naked; abdomen wholly or partly covered with large or small plates 
or sometimes with very small granules or naked ; orbit with a more or less distinct 
posterior notch; teeth bifid, not setiform, in small or moderate number, sometimes 
few and well developed, sometimes rudimentary and more numerous. Dorsal with 
17 rays, originating above or a little behind the ventrals, anal with I 5, pectoral 
with I-6, ventral with 15. Caudal emarginate, one or both of the outer rays often 
produced. Vertebre 545+ 23 (in L. typus) and 54+6+425 (in L. cataphracta); ribs 
present, slender. 
Rivers of S, America. 
Insufficiently described species belonging to this genus are :— 
Loricaria brunnea Hancock, Zool. Journ. iv. p. 247 (1828) (allied to L. maculata 
Bl.). 
Loricaria platyura Mill. & Trosch. in Schomburgk, Reis. Brit. Guiana, iii. p. 631 
(1848). 
Hemiloricaria caracasensis Bleek. Ned. Tijd. Dierk. i, 1863, p. 81. 
Loricaria bransfordi Gill, Proc. Ac. Philad. 1876, p. 538. 
