bo 
=I 
ie] 
FISHES OF THE FAMILY LORICARIID®. 
8. fLORICARIA MAGDALENE. 
Loricaria magdalene Steind. Denkschr. Ak. Wien, xxxix. 1878, p. 74, and ib. xli. 1879, pl. vii. 
figs. 2 & 3. 
Length of head 5 times in the total length. Breadth of head 14-12 times in its 
length, diameter of eye 6-7 times, interorbital width 4 times, length of snout 21 times. 
Males armed with bristles on the sides of the head, the supraoccipital, nuchal scutes, 
and pectoral spine; snout triangular, with rounded apex; supraoccipital with a pair of 
very weak keels; orbit with a large notch ; lips papillose, with short marginal fringes ; 
free portion of barbel a little longer than diameter of eye; about 8 teeth on each side 
in both jaws. 30 scutes in a longitudinal series (15+15); nuchal scutes obscurely 
bicarinate ; lateral keels weak, united posteriorly ; scutes otherwise not carinate. 
Abdomen with 3 series of plates between the lateral series for nearly their whole 
- extent; anterior plates smaller, extending to the level of the middle of the gill- 
opening ; anal plate bordered anteriorly by 3, these 5 again by 5. First dorsal ray as 
long as or a little longer than the head; pectoral spine extending to base of ventral or 
a little beyond; first and second branched rays of ventral the longest ; upper caudal 
ray elongate. Breadth of body at level of first anal ray nearly 5 times in the distance 
from that point to the caudal. All the fins with dark spots on the rays; caudal dark 
at the base and in its posterior half. 
‘The typical examples measure up to 150 mm. in total length. 
R. Magdalena. 
9. LORICARIA CADER. 
Loricaria cadee Hensel, Arch. Nat. 1868, i. p. 369; Cope, Proc. Am. Phil. Soc, xxxili. 189-4, 
p. 94, fig. 15. 
Length of head 43 times in the total length. Breadth of head 13 times in its length, 
diameter of eye nearly 7 times, interorbital width 43 times, length of snout 25 times. 
Snout triangular, pointed ; supraorbital edges slightly raised ; supraoccipital with a pair 
of weak keels; orbit with a large notch. Lips papillose, with short marginal fringes, 
the lower rounded, of moderate width; free portion of barbel not longer than the 
diameter of eye; teeth well developed, 6-8 on each side in both jaws. 29 scutes in a 
longitudinal series, 17+12, the lateral keels weak, united posteriorly ; all the scutes in 
front of the dorsal very obscurely carinate. Lower surface of head naked; abdomen 
with 3 series of plates between the lateral series for nearly their whole extent, a few 
smaller plates anteriorly, extending medianly to the posterior edge of the coracoids, 
laterally nearly to the inner angle of the gill-opening ; an anal plate, bordered anteriorly 
by 3, these 3 again by 9. First dorsal ray as long as the head ; pectoral spine extending 
to base of ventral; ventrals with the 2 or 5 outer branched rays the longest ; (caudal ?). 
Breadth of body at level of first anal ray 43 times in the distance from that point to 
VOL. XVII.—PART 1. No. 12.—Octoder, 1904. 2P 
