U. S. P. R. R. EXP. AND SURVEYS ZOOLOGY GENERAL REPORT. 



more advanced position of the dorsal fin, with reference to the insertion of the ventrals. The 

 pectoral fins themselves assume the elongated aspect which they have in P. heros. 



References to the figures. Plate VIII, fig. 5, represents, size of life, an immature specimen of 

 Pomotis speciosus, caught in the Rio Seco, Texas. Fig. 6 is a dorsal scale. Fig. 7, a scale 

 from the lateral line. Fig. 8, a scale from the abdominal region. 



List of specimens. 



3. POMOTIS HEROS, B. & G. 

 PLATE IX, FIGS. 1316. 



SPEC. CHAR. Head, mouth, and eye larger than in P. speciosus ; edge of preopercle inconspicuously serrated ; pectorals 

 projecting beyond the tips of ventrals ; anal fin provided occasionally with a black patch, as well as the dorsal. 



SYN. Pomotis heros, B. & Or. Proc. Acad. Nat. Sc. Philad. VII, 1854, 25. 



This species, like the preceding one, was first collected by the United States and Mexican 

 Boundary Commission, consequently its description and figure will be found annexed to the 

 Report on that survey. It is more closely allied to P. incisor than even P. speciosus. It has 

 also intimate affinities with P. solis, Cuv. & VAL. Hist. nat. des Poiss. VII, 1831, 468. 



References to the figures. Plate IX, fig. 13, represents the young of Pomotis heros, caught in 

 the Rio Blanco, Texas. Fig. 14 is a dorsal scale, i Fig. 15, a scale from the lateral line. Fig. 

 16, a scale from the abdominal region. 



