Jordan and Evermann. — Fishes of North America. 3191 
(“Named for Dr. A. Stahl, of Bayamon, Puerto Rico, who, under many 
difficulties put in his way hy Spanish authorities, made important col- 
lections of natural history objects of that island.”) 
Auchenistius stahli, Everjiann Sc Marsh, Kept. IJ. S. Fish Com. 1899 (Dec. 19, 1899), 359, 
Ponce, P. R. (Type, No. 49372, IT. S.N.M. Coll. Evermann & ilarsli.) 
Page 2373, Before Auchenopterus fasciatus (Steiudacher), insert: 
2717 (a). AUCHENOPTEKUS AEBICAUDUS, Evermann A; Marsli. 
Head 3.2; depth 4; eye 4; snout 4.1; maxillary 2.2 ; mandible 1.6; inter- 
orbital 5.3; D. XXX, 1; A. II, 17; pectoral 1.4; ventral 1.5; caudal 1.6; 
branchiostegals 6; scales 1-34-6. 
Body rather short, compressed; dorsal outline not elevated; head mode- 
rate, not broad; snout short, pointed; mouth large, oblique, maxillary 
extending to below middle of eye ; lips broad, prominent ; a band of conical 
teeth on each jaw, those on side somewhat enlarged and recurved ; a patch of 
teeth on vomer, none on palatines ; gill-membranes broadly united, free from 
isthmus; eye large, high up; nasal, supraocular, and nuchal regions with 
fringed tuft-like cirri ; a considerable notch between fourth and fifth 
dorsal spines, hut not reaching base of membrane; longest anterior spine 
scarcel}^ as long as those of the posterior portion ; scales large, reduced 
anteriorly; lateral line anteriorly separated from the dorsal fin by only 
one scale; head naked. 
Color : Uniform dark brown on head and body, no dark crossbars ; dorsal 
brown, mottled with lighter, narrowly edged with white; a black spot 
upon anterior 3 or 4 sjiines and a large black ocellus upon iiosterior portion 
of fin between twenty-second and twenty-fourth spines; anal rather 
darker, with narrow white edge; caudal peduncle black, the fin abrxiptly 
white at base, the entire fin being clear white, entirely without specks; 
pectoral black at base, then barred with white and dark; ventral black 
at base, the outer two-thirds barred with black and white. 
This species seems to be related to the Pacific-coast species, Auclien- 
opterus integriphinis, which .it closely resembles, but differs from that 
species in the larger scales, the deeper body, and the coloration. 
Puerto Rico; known only from the type, a specimen 1.5 inches long, 
obtained by the U. S. Fish Commission expedition to Puerto Rico, February 
4, 1899. 
(alhns, Avhite; caitda, tail.) 
Auchenopterus albicaudus, Everman.v Sc Marsh. Eept. F. S. I'isli Com. 1899 (Dec. 19, 1899), 
360, Arroyo, P. R. (Type, No. 49373, U..S.N.M Coll. Evermann &. Marsh.) 
2717 (b). AUCHEXOPTERUS RUBEStEXS, Evermann A: Marsh. 
Head 3 4; dejith 5; eye 5; snout 3.8; maxillary 2.6; iuterorbital 5.8; 
scales 2-32-8 ; D. XXX, 1; A. II, 18; pectoral 1.5; ventral 2; caudal 1.4. 
Body slender and compressed ; head moderate, somewhat compressed 
above; snout pointed ; mouth moderate, the jaws equal, the maxillary 
about reaching front of impil; lips, especially the upper, prominent; teeth 
small, conical anil sharp, in both jaws, in a numerous jiatch on front of 
