FISHES OF THE FAMILY LORICARIIDA. 287 
Loricaria stubelii Steind. Denkschr. Ak. Wien, xlvi, 1882, p. 7, pl. i. fig. 2; Higenm. & Eigenm. 
Proc. Cal. Ac. (2) ii. 1889, p. 37, and Oce. Pap. Cal. Ac. i. 1890, p. 370. 
Loricaria typus Eigenm, & Eigenm. |. c. and t. e. p. 373. 
Length of head 44-4? times in the total length. Breadth of head 1} times in its 
length, diameter of eye 64-8 times, interorbital width 33-32 times, length of snout 
27-23 times. Snout rounded; upper surface of head, in the adult. without keels, 
evenly convex; orbit with a large notch ; lower lip smooth, or with very small papille, 
with somewhat larger papilla posteriorly and with short marginal fringes; in the 
male smooth, with entire edges, very large, covering the entire naked surface of the 
head; free portion of barbel longer than the eye; upper jaw with abont 10 minute 
teeth on each side, lower jaw with about 20. 31 scutes in a longitudinal series, 
20-21+410-11, the lateral keels sharp, separate throughout, the scutes otherwise not 
carinate. Lower surface of head naked; abdomen with 2 series of plates between the 
lateral series; anal plate bordered anteriorly by 2 or 3. First dorsal ray a little longer 
than the head; pectoral spine extending to base of ventral; second or third branched 
ray of ventral the longest (in the adult); caudal emarginate. Breadth of body at level 
of first anal ray 3-4 times in the distance from that point to the caudal. Numerous 
dark spots on head and anterior part of body; fins with small dark spots, which are 
more numerous and in part confluent to form bars near the margins, 
Total length 290 mm. 
Four specimens (including the type of Z. valenciennesi): Surinam; R. Amazon; 
R. Paraguay. 
22. LORICARIA ACUTA. 
Loricaria acuta Cuv. & Val. Hist. Nat. Poiss. xv. p. 472 (1840) ; Kner, Denkschr, Ak. Wien, vi. 
1853, p. 85; Giinth. Cat. Fish. v. p. 258 (1864) ; Kigenm. & Eigenm. Proc. Cal. Ac. (2) i. 
1889, p. 38, and Occ. Pap. Cal. Ac. i. 1890, p. 375. 
? Loricaria castanea Casteln. Anim. Am. Sud, p. 46, pl. xxiii. fig. 4 (1855). 
Length of head 44 times in the total length. Breadth of head 12 times in its 
length, diameter of eye about 6} times, interorbital width 55 times, length of snout 
24 times. Supraoccipital with a pair of keels, the head otherwise without keel§ 
or ridges, evenly convex; orbit with a large notch; lips smooth, the lower with entire 
posterior margins, in the male large, covering the entire naked surface of the head ; 
upper jaw with 12-15 minute teeth on each side, lower jaw with 18-25. 31 scutes in 
a longitudinal series, 20-++-11, all in front of the dorsal carinate, the lateral keels sharp, 
separate throughout. Lower surface of head naked; abdominal plates in 1 series 
between the lateral series ; anal plate bordered anteriorly by 3. First dorsal ray nearly 
as long as the head ; pectoral spine extending to base of ventral, ventral to fourth ray of 
anal; caudal emarginate. Breadth of body at level of first anal ray 43-5 times in tne 
distance from that point to the caudal. Dorsal and caudal with dark spots on the 
VOL. XVII.—PaART 11. No. 13.—October, 1904. 2Q 
