ANNOTATED LIST OF THE SPECIES 169 
140. ASTROBLEPUS PRAELIORUM Allen, sp. nov. 
Plate XIII, figs. 6-7 
17821, 31, 30-54 mm., Tarma, Kigenmann, September, 1918. 
17822, many, 46-78 mm., without caudal, Palea, Eigenmann, September, 1918. 
17823, 4, 47-54 mm., Huancayo, Eigenmann, September, 1918. 
17824, 1, 55 mm., Oroya, Eigenmann and Allen, September, 1918. 
17829, 2, 38 and 58 mm., Huancachupa creek, Hudnuco, Allen, October, 1918. 
Upper Mantaro and Huallaga basins 
Similar to A. sabalo and longiceps, less robust than the first, and more so than 
the latter; characterized by the truncate caudal fin, short, low adipose, small eye, 
and lack of filamentous prolongation of the pectoral, ventral, and caudal fins, 
except for the occasional slight growth of one or more of them. 
Head 3.9-4.1; width of head about equal to the length; D. I, 4, short; distance 
from eye to first dorsal ray 3.5-3.8 in the length (3.8-4.5 in an A. sabalo of the same 
length); adipose variable, but short and separated from dorsal by more or less the 
length of the folded dorsal, membrane of adipose not well developed, adipose never 
deep, spineless; P. I, 8-9, its spine slightly protracted, 1.25-1.3 in the head, and 
overlapping first third of the ventrals; V. I, 3-4, its spinous ray slightly protracted, 
or not at all, and well separated from the anus; A. 5-6, small; the first rays of the 
fins close set with curved spines directed posteriorly; ventral spine especially 
broad; caudal fin truncate. 
Eye small, and nearly concealed; triangular nasal flap separating nares, not 
extending into a barbel at its tip; nares 1.25-1.33 times the interocular space from 
the eye; maxillary barbel not, or scarcely, reaching the edge of the opercle. 
The Tarma specimens show faintly the marbled effect which characterizes 
our specimens of A. sabalo; Palca specimens have it in a scarcely perceptible 
degree; general color a light, chocolate brown. 
Complimentary to the Hermanos Praeli, merchants of Tarma and La Merced, 
who were instrumental in procuring facilities and who aided the collecting in person. 
Family TX: Callichthyidae G7l/ 
Callichthyoidet Bleeker, 1863, Nederl. Tijdsch. Dierk., I, 82. 
Siluridae proteropodes (in part) Giinther, 1864, Cat. Fish. Brit. Mus., V, 4. (In part Hypostoma- 
tinae). 
Callichthyidae Gill, 1872, Arrangement of the Families of Fishes, 19; 
Eigenmann and Eigenmann, 1890, Oce. Papers Cal. Acad. Sci., I, 449; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 401; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 214; 
Gosline, 1940, Stanford Ichth. Bull., II, 1, 1-29. 
South American Nematognathi, best characterized by the two series of lateral 
plates, one above the other, meeting along their length in a serrated line; mouth 
terminal, small, lower lip not reverted; teeth villiform; cavity of the air bladder 
communicating with the exterior by means of a long narrow slit in the temporal 
plate and by the last of a series of slits below the long one. 
Panama to La Plata basin, foothills of the Andes to the Atlantic 
