FISHES OF THE FAMILY LORICARIID®. 285 
teeth on each side. 34-35 scutes in a longitudinal series, 24-+-10-11, the lateral keels 
weak, obtuse, united posteriorly; scutes otherwise not distinctly carinate. Lower 
surface of head naked; abdomen with 5 or 6 series of plates between the lateral series, 
the anterior plates smaller and more numerous, extending to the level of the outer 
angle of the gill-opening; an anal plate bordered anteriorly by several of moderate 
size. First dorsal ray a little longer than the head; pectoral spine extending to 
anterior ; or middle of ventral ; ventral spine moderately produced, the soft portion 
of the fin emarginate, the first and third soft rays longest ; caudal emarginate, the 
outer rays scarcely produced. Breadth of body at level of first anal ray 4 times in the 
distance from that point to the caudal. Small round blackish spots on head, body, 
and fins (except the anal), those on the sides of the body larger and forming 1 or 2 
longitudinal series. 
Total length 270 mm. 
Two specimens (including the type of the species): R. Amazon. 
19. Loricarta puNcTATA, sp.n. (Plate XVII. fig. 1.) 
Loricaria leviuscula (part.) Eigenm. & Eigenm. Occ. Pap. Cal. Ac. i. 1890, p. 380. 
Length of head 45-43 times in the total length. Breadth of head 11-12 times in 
its length, diameter of eye 5—6 times, interorbital width 6 times, length of snout twice. 
Snout pointed; upper surface of head without keels, evenly convex; supraorbital 
edges scarcely raised; orbit with a broad shallow notch; lips with small papillie, the 
upper narrow, with tentacular fringes of moderate length; the lower lip moderately 
broad, its posterior border smooth, entire or slightly crenulate, emarginate ; free portion 
of barbel less than diameter of eye; jaws with about 12 rather small teeth on each 
side. 30 scutes in a longitudinal series, 19-21+ 9-11, the lateral keels sharp, distinct 
throughout; scutes otherwise not carinate. Lower surface of head naked; abdomen 
with 3 or 4 series of plates between the posterior plates of the lateral series; anterior 
plates smaller and more numerous, extending to the level of the middle of gill-opening ; 
au anal plate, bordered anteriorly by 4. First dorsal ray as long as the head; 
pectoral spine extending to anterior + of ventral; ventral spine not produced, the soft 
portion of the fin emarginate, the fourth soft ray the longest ; caudal emarginate, the 
outer rays scarcely produced. Breadth of body at level of first anal ray 34-41 times 
in the distance from that point to the caudal. Numerous small dark spots on head, 
body, and fins (except the anal), those on the sides larger and fewer. 
Total length 180 mm. 
Three specimens: two from Manaos, Rio Negro, Middle Amazon, collected by 
Mr. J. C. Antony, and one from Porto do Moz, Lower Amazon, received from the 
Museum of Comparative Zoology, Cambridge, U.S.A. 
