EIGENMANN: PIMELODELLA AND TYPHLOBAGRUS 245 
or a little farther. Adipose fin 3-3.25 in the length; upper caudal lobe distinctly 
the longer, 3 in the length; dorsal spine equals snout and half the eye; pectoral spine 
equals snout and eye, with numerous recurved notches in front, very few feeble 
teeth or smooth along posterior face. A narrow, well-defined, lateral streak from 
eye to caudal; base of dorsal hyaline, then black, shading to the tip of the rays. 
This species is closely allied to P. buckleyi, in which the dorsal and pectoral 
spines are of equal length, and to P. notomelas with a much longer barbel. 
18. Pimelodella boliviana sp. nov. (Plate XXXI, fig. 2). 
6964a C. M., type, 90 mm. over all, Santa Cruz de la Sierra, Bolivia. Steinbach. 
6965a C. M., 67 mm. to base of caudal, Prov. del Sara, Jan.—Oct., 1911.  Stein- 
bach. 
Habitat.— Central Bolivia; Madeira Basin. 
Head 4.5-4.6; depth 6.3-6.5; D. 1.6; A. 13; eye 3.75 in the head; interorbital 
4.3-4.7; eye in middle of the head; adipose fin 3 in the length; maxillary barbel 
extending to or beyond the base of the caudal; outer mental to or near to tip of 
pectoral; pectoral spine a little longer than snout and eye; dorsal spine less than 
snout and eye. Pectoral spine with 10 retrorse hooks along the distal half of the 
anterior margin, about 7 scarcely perceptible thorns on the posterior margin; 
caudal 3.5 in the length; a narrow band from snout to end of middle of caudal 
rays, heaviest just behind gill-openings. Dorsal dusky except along base. 
19. Pimelodella lateristriga (Miller & Troschel). 
Pimelodus lateristrigus MitterR & Troscuei, Hore Ichthyol., III, 1849, p. 3 
(Brazil). 
Pimelodus lateristriga GiGnTHER, Cat. Fish. Brit. Mus., V, 1864, p. 118 (Brazil); 
? Henset, Wiegm. Arch., 1870, I, p. 69 (Porto Alegre); StrEINDACHNER, Sb. 
Ak. Wiss. Wien, LX XIV, 1876, Siisswasserfische Siidéstl. Bras., III, p. 45 
(Rio Parahyba; Rio Doce; Rio Jequintinhonha; Cannavierias; Muriahe and 
Rio Janeiro); VAILLANT, Bull. Soc. Philom. (7), IV, 1880, p. 52 (Calderon). 
Pseudorhamdia lateristriga LitvKEN, Velhas-Flodens Fiske, Dan. Vidensk. Selsk. 
Skr., 1875, p. 171, fig. (Rio das Velhas). 
Pimelodella lateristriga EIGENMANN & EIGENMANN (part), Proc. Cal. Acad. (2), I, 
1888, p. 133 (Santa Clara; Rio Mucuri; Rio Doce; Cannavierias; San Matheos; 
Mendez; Rio Trombetas); Occasional Papers Cal. Acad. Sci., I, 1890, p. 156; 
Proc. U. S. Nat. Mus., XIV, 1891, p. 29; ErgenmMann, Reports Princeton 
Univ. Exped. Patagonia, III, 1910, p. 389. 
