478 Dr. A. Giinther on some new Freshwater Fishes 
of the width of the interorbital space, which is flat. Thorax’ 
and abdomen covered with irregular scutes. The length of the 
head (measured to the occiput) is a little more than one-fifth of 
the total (without caudal). Origin of the dorsal fin opposite to 
the root of the ventral. Brown; back with about five obscure 
dark cross bands; fins with broad, irregular, confluent, black 
cross bands. 
Xeberos. 
Loricaria platystoma. 
Snout of moderate length, slightly pointed; mouth broad, 
upper lip well developed, lower semicircular, of moderate 
width, papillose, not fringed, and with a minute barbel near 
the angle of the mouth. Teeth very fine, about forty on each 
side of each jaw, the series occupying nearly the whole width 
of the mouth. Orbit nearly circular, without notch, its hori- 
zontal diameter being two-thirds of the width of. the inter- 
orbital space, which is slightly concave. Scutes remarkably 
smooth, even the lateral ridges of the body and tail being 
obtuse. There is a series of seven or eight scutes between the 
roots of the pectoral and ventral fins. Thorax and abdomen 
covered with small irregular scutes. The length of the head 
(measured to the occiput) is contained five times and one-third 
in the total (without caudal). Origin of the dorsal nearly op- 
posite to that of the ventral. Uniform brownish (in spirits). 
Surinam. 
Loricaria lamina. 
Head and body excessively depressed; snout of moderate 
length, very broad, the head being nearly as broad as long. 
Labial folds thin, fringed. Teeth minute, few in number; 
there are about five on each side in the upper jaw, and seven. 
in the lower. Orbit small, with a shallow notch behind ; its 
horizontal diameter (the notch included) is three-fourths of the 
width of the interorbital space, which is nearly flat. LHdge of 
the snout trenchant. ‘There is a series of nine scutes between 
the roots of the pectoral and ventral fins. Thorax and ab- 
“domen covered with small, irregular scutes. The length of 
the head (measured to the occiput) is contained four times and 
one-third in the total (without caudal). : 
Xeberos. 
Curimatus asper. | 
~D. 11. A. 12-138. V. 9-10. L. lat. 51. LL. transv. =. 
The height of the body is contained twice and two-thirds 
or thrice in the total length (without caudal), the length of the 
head thrice and one-half. Snout as long as the diameter of 
the eye, which isa little more than one-half of the width of 
