250 MEMOIRS OF THE CARNEGIE MUSEUM 
6978a-y C. M., 87-51 mm., Mogy das Cruzes, Rio Tieté, July 19, 1908. Haseman, 
Allied to P. ere and P. transitoria. 
Head 4.25; depth 5; D. 1.6; A. 11; eye 4.5 in the head; interorbital equals 
eye; maxillary barbel reaching a little beyond base of ventrals; adipose 3.8 in the 
length; caudal 5; distance from snout to dorsal fulerum 3 in the length; fins all 
small; pectoral spine equals snout and eye; 11 hooks on over half of the distal 
anterior face of the spine; 12 feeble teeth not over one-third as wide as the spine 
on a little over half of the posterior face of the spine; pectoral fin equals length of 
head less opercle; ventral fin equals snout and half the eye; base of anal equals 
length of snout; dorsal spine equals snout and half eye; a well-developed band 
from snout to caudal. 
27. Pimelodella griffini sp. nov. (Plate XXXII, fig. 3). 
6962 C. M., type, 87 mm.; 6963a-e C. M., paratypes, 55-88 mm., mountain rills 
near Sapucay, Paraguay, April 2, 1909. Haseman. 
Distinguished by the pees dorsal ray. 
Head 4-4.5; depth 5-5.5; depth of caudal peduncle one-half of greatest depth; 
D. 1.6; A. 13 counting everything; eye 1.6 in snout, 4 in head; 8 in interorbital; 
adipose 3.5-4.5 in the length; maxillary barbel reaching tip of ventrals or shorter; 
outer mentals but little if any beyond base of pectoral. Dorsal spine about equal 
to the pectoral spine, prolonged into a filament, spine and filament sometimes equal 
one-third of the length, the filamentous portion being sometimes longer than the 
spine. Pectoral spine with 9-11 spinules on the basal two-thirds of the posterior 
edge; the anterior edge with retrorse hooks near the tip and minute serrations 
the rest of the way; dorsal spine nearly smooth; upper caudal lobe the longer, 
the lower as long as the head; a dark band from anterior nares to end of middle 
caudal rays. 
One specimen has a light band through the dorsal, the dorsal 1.7; the eye 
less than the interorbital. 
28. Pimelodella mucosa Kigenmann & Ward. (Plate X XXIII, fig. 1). 
Pimelodella lateristriga (non Miller & Troschel) E1iGENMANN, part.’ Ann. Car- 
negie Mus., IV, 1907, p. 114 (Villa Rica). 
Pimelodella mucosa E1GENMANN & Warp, Ann. Carnegie Mus., IV, 1907, p. 114, 
plate XXXII, fig. 1; Eraenmann, Reports Princeton Univ. Exp. Patagonia, 
IIT, 1910, p. 389. 
One of the small specimens referred to Pimelodella lateristriga seems to belong to this species; 
the others certainly do not. 
