188G.] PEOCEEDrxGS OF UNITED STATES NATIONAL JIUSEUM. 15 



i:. — SABI]N'E ElVEIl AT LONCrVIEW, TEXAS. 



The Sabine Iviver, 5 miles south of Lougview, Tex., is, in midsiiinnier, 

 II small, ratber clear stream, flowing with little current over a bottom of 

 Hue gravel, mud, and sand. 



It is a better stream for fishes than the lied Kiver, but, as it almost 

 dries up in the summer, the larger species do uot thrive in it. 



1. Notixrus uoctiiruus Jordan & Gilbert. 



2. Moxostoma poecilurum Jordan. 



Young specimens, the caudal fiu having ijrecisely the same bright 

 coloratiou as the original types. 



3. HybognathiTs uiichalis Agassiz. 

 Abundant. 



4. Cliola vigilax Baird & Girard. 



5. Notropis dilectus Girard. 



A row of dark points above the base of the anal fin exists in this 

 species, and may prove a convenient diagnostic mark. 



6. Notropis lutrensis Baird & Girard. 

 Common. 



7. Notropis venustus Girard. 

 Common. 



8. Notropis sabinae, sp. uov. (oG.l'!i4. ) 



Head, 3^ in length ; depth, 4|. B. 8 ; A. 7. Scales, 4-33-2. Teeth, 

 4-4, hooked, with isome grinding surface. Length, about 2 inches. 



Allied to Notropis deliciosits, but notably different in form, the out- 

 line of the body resembling that of a young Eed Horse {MoxoHtoma). 

 Body moderately compressed, the caudal peduncle loug and thick, 

 the back distinctly elevated, the i^rotile from the tip of the snout to 

 the front of the dorsal forming a nearly regular curve. Back ratlier 

 broad above, its edge little compressed. Head rather loug, broad and 

 flattish above. luterorbital width 25 in length of head. Snout IVi in head. 

 Eye small, 3|. Mouth rather large, nearly horizontal, the lowei- jaw a 

 little shorter than the upper, the nmxillary reaching to a little p;fst 

 front of pupil, 2.V in head. 



Scales very large, those on the back not reduced in size, 14 before 

 dorsal. Lateral line not strongly decurved. 



Insertion of dorsal fin slightly nearer tip of snout than base ol" caudal, 

 nearly over insertion of ventrals. Dorsal fin rather short and small; 

 anal fin small; pectoral fins comi)aratively long, about reaching ven- 

 trals; their length 1.^ in head. 



Color very pale, scarcely silvery ; margins of scales on back and sides 

 with dark i)oints, so that their edges are distinctly traceable; fins pale. 



9. Pheuacobius mirabilis Girard, 



Lat. 1. 48, 



