eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 251 



(2), II, 1889, 34 (Manacapuru; Hyavary); Occasional Papers Cal. Acad. Sci., 

 I, 1890, 359.— Regan, Trans. Zool. Soc. London, XVII, 1904, 296.— Eigen- 

 mann, Ann. Carnegie Mus., IV, 1907, 120, pi. 35, fig. 1 (Corumba); Repts. 

 Princeton Univ. Exp. Patagonia, III, 1910, 415. 



One specimen, 95 mm. to tip of middle caudal rays, 118 over all. Gluck 

 Island. (C. M. Cat. No. 1514.) 



Head 3.25; width of head 2.2 in its length; eye 8 in head, 4.5 in snout; inter- 

 orbital 6.5 in head. Width of first anal ray 5 in its distance from the caudal; 

 scutes 11 + 16, the keels remaining separate. Head, and all the plates in front 

 of the dorsal, with wavy longitudinal ridges. A deep inturned orbital notch. 



Lips very broad, extending slightly beyond the anterior angle of the gill- 

 opening, faintly papillose, the margin variously nicked and fringed. Teeth in the 

 lower jaw very minute, none in the upper jaw. Anal plate bordered by three 

 larger plates, the four forming the ventral buckler. A median series of three plates 

 between the lateral series in front of the buckler. 



Pectorals truncate, reaching ventrals; ventrals rounded, reaching anal; anal 

 rounded. Dorsal spine equals head without snout. Caudal oblique, very faintly 

 emarginate, the upper ray more than three times the length of the middle ray. 



Upper surface reddish brown, sides of head and lips marbled, five bars across 

 the back behind the dorsal. Fins faintly barred. 



Harttia Steindachner. 

 Harttia Steindachner, " Siisswasserfische d. sudostlichen Brasilien," iii, 1876, 110 



{loricariiform is) . 



Loricariiform; teeth numerous, in about equal numbers in both jaws; snout 

 not produced into a rostrum. 



116. Harttia platystoma (Gtinther). (Plate XXX, fig. 6; Plate XXXI, figs. 



1-2.) 

 Loricaria platystoma Gunther, Proc. Zool. Soc. London, 1868, 236, figs. 4, 5 



(Surinam). — Eigenmann and Eigenmann, Proc. Cal. Acad. Sci., (2), II, 1889, 



37; Occasional Papers Cal. Acad. Sci., I, 1890, 385; Proc. U. S. Nat. Mus., 



XIV, 1891, 39. 

 Oxyloricaria platystoma Regan, Trans. Zool. Soc. London, XVII, 1904, 298. 

 Harttia platystoma Eigenmann, Repts. Princeton Univ. Exp. Patagonia, III, 1910, 



415. 



Twelve specimens, 53-160 mm. Rockstone. (C. M. Cat. No. 1511a-c; I. U. 

 Cat. No. 11939.) 



