Jordan and Ever7nann. — Fishes of North America. 265 



mouth rather large, oblique ; snout little pointed ; maxillary reaching 

 slightly past front of orbit, its length about 3^'; in heail; lower jaw shorter 

 than upper, included; origin of dorsal slightly nearer tip of snout than 

 base of caudal ; about 12 scales in front of dorsal ; tips of dorsal rays all 

 coterminous whien the fin is deflexed; length of longest ray 1^ in head; 

 base of fin scarcely 2 in head ; anal similar to dorsal, its longest ray 2 in 

 head ; base 3 ; pectorals reaching f distance to ventrals, Ij in head ; ven- 

 trals reaching t distance to anal, \t in head; teeth 4-4, little hooked. 

 Color brownish, a faint silvery band along sides, little wider than eye, a 

 very small faint dark spot at base of caudal; fins all plain. Tributaries 

 of Rio San Juan, at Cadereita, andNuevo Leon. Allied to X. hlcnnius, but 

 differing in the larger, more oblique mouth. (Named for Dr. Alembert 

 Winthrop Brayton, of Indianapolis, with pleasant memories of our explor- 

 ations in Georgia and the Carolinas in 1877 and 1878.) 



Moniana nitida, Girard, Proc. Ac. Nat. Sci. Phila.,1856, 21, Cadereita, Mexico. (Type, No. 

 39657. Coll. Couch.) (Not Albxtrnns tiUidus, Kirtland, also a Notropis.) 



416. XOTROPIS SPECTRUNCULUS (Cope). 



Head 4; depth 5|^ ; eye 3. D. 8; A. 9'; lateral line 37 ; teeth 4-4. Body 

 elongate. Head large, rather flat, nearly as broad as deep. Muzzle thick. 

 Mouth slightly oblique, maxillary reaching eye ; 15 rows of scales in front 

 of dorsal. Pale olive, silvery white below; a leaden band along the sides 

 and a conspicuous black spot at base of caudal; head dusky ; margins of 

 scales above lateral line, as well as bases of dorsal and anal fins, blackish; 

 pectorals, ventrals, dorsal, and anal more or less orange in life ; no red on 

 snout. Length 3 inches. Head waters of Tennessee River, in Tennessee, 

 Virginia, and North Carolina ; abundant in cold mountain streams and 

 springs. A well-marked species. (Diminutive of spectrum, an image.) 



Bybopsis spednmciihis. Cove, Jouru. Ac. Nat. Sci. Phila., 1868,231, Bear Creek, tributary of 



Middle Fork of Holston River. (Coll. Cope.) 

 Cliola spectruHciila, Jordan & Gilbert, Synopsis, 166, 1883. 



417. NOTROPIS OZARCANUS, Meek. 



Head4i; depth 6^; eye 3. D.7;A. 8; scales 36; teeth 4-4, hooked, with 

 narrow grinding surface, their edges creuate. Allied to X. spccfriinciilus, 

 but with slenderer body and head. Body little compressed. Mouth 

 small, little oblique, maxillary not quite to eye ; lips very thin ; preorbita) 

 large ; pectoral short. Olivaceous, sides with dark dots forming a faint 

 lateral band. White River, Arkansas, in the Ozark Mountains. 



Nolropis ozarcamiK, Meek, Bull. U. S. Fish Comm., ix, 1889 (1891), 129, North Fork of White 

 River, Arkansas. (Coll. Muek A- Drew.) 



41S. XOTROPIS CHIHIAHIA, Woolman. 



Head 4; depth 4; eye large, 3f in head, slightly longer than snout. 

 D.8; A. 7; scales 33 to 37; teeth 4-4, hooked, with very narrow grind- 

 ing surface. Body rather plump, little compressed, the back 1 itt le elevated ; 

 head large J snout blunt; mouth slightly oblique, the maxillary scarcely 



