364 CALIFORNIA ACADEMY OF SCIENCES. 



s. Dorsal rays spotted, snout pointed, tipper portion of 

 head very rough; orbit with a shallow triangular notch; 

 shields of the anterior portion of the body down to the 

 belly keeled; lower lip rounded, strongly papillose; lat- 

 eral keels united on the 15th plate; lat. 1, 29. (Stein- 

 dachner) l-onopkkyi 319. 



ss. Dorsal, pectorals and ventral each with a broad black 



band; teeth very tine, few, , ; horizontal diameter of 



^ 7 + 7 



orbit with notch 1| in interorbital. (Glinther.) 



lanceolatus 320. 

 qqq. Margin of caudal black; pectorals, ventrals and anal, 

 each with a broad dark band; two dusky spots on upper 

 lip; orbital notch narrow, deep; lij^s narrow; teeth rather 

 large, numerous; belly with 5 series of plates; outer ven- 

 tral ray prolonged. teffeana 321. 

 a. Plates between ventrals small; a large anal plate; orbit with a shal- 

 low notch; eye |— J in interorbital; upper lip with a fringe of cirri. 

 Head and body with black spots; head short, high, anterior profile 

 steep, straight; pectorals falcate; outer ventral ray produced. 



(PsEiTDOLORiCARiA.) lavhiscula 322. 



in. Plates between ventrals, if present, small; no large anal jilate. 



(LORICARIA.) 



t. Belly at least partially naked; lower lip with numerous cirri and 

 marginal fringes. 



u. Belly with the middle line and sides armed; teeth few, small; 

 an occipital keel; upper surface with numerous narrow light 

 and dark lines; all fins but the anal spotted with violet. (Stein- 

 dachuer.) variegata 323. 



un. Belly with a median naked area; the breast and ventral re- 

 gion with small plates; head broader than long to upper angle 

 of gill-opening; teeth in both jaws of the same size and number; 

 eye small, 51 in the snout almost 2 in the interorbital; orbital 

 notch very shallow; occipital with two keels; all tins but the 

 anal spotted with black. (Kner.) macrodon 224. 



uuu. Belly entirely naked; eye 7 in head, 4 in snout, 2 in interor- 

 bital; head without keels. (Cuv. & Val.) nudiventris 325. 

 it. Belly entirely armed in adult. 



i'. Lower lip with numerous cirri. 

 w. Orbit with a shallow notch. 



X. Barbel short; margin of head convex, entirely granular; 

 anterior profile convex. 



y. Width at origin of anal equals the length of the snout; 

 width of head less than its length to upper angle of 

 gill-opening; occipital with very strong keels. 



cataphracla 326. 



