476 GEOLOGICAL SURVEY OF THE TEEEITOEIES. 



beyond upper; month descending; end of maxillary just reachiag line 

 of orbit. Isthmus narrow. Teeth, 5.2-2.4. Scales, 15-58-7. Kadii, D. 

 1. 8 ; A. I. 11. Ventrals nbt reaching anal. Length, 6 inches. 



Color above olive, with a blackish inferior border, extending from the 

 superior margin of the orbit. Below this, a crimson band, and still 

 lower, a blackish band, passing from the epiclavicular region above the 

 lateral line to the basis of the caudal fin. Below this, crimson in front, 

 silvery behind. Fins unspotted. Suborbital bones crimson ; cheek 

 golden. 



Blackfoot Creek, Idaho. Collectioa No. 13. 



Clinostomus montanus. Cope, sp. nov. 



Muzzle decurved, obtuse; jaws equal; end of maxillary extending be- 

 yond margin of orbit. Orbit large, entering the head 3.5 times and the 

 interorbital region once. Length of head, one-fourth leugth to caudal 

 fin; depth nearly equal. Scales, 11-12—56—6. Eadii, D. I. 9; A. II- 

 12. Length, 3.5 inches. 



Olive above, a dark band extending from epiclavicular region above 

 caudal line to caudal fin. Sides crimson as high as the lateral line. 



jSTumerous specimens (Eo. 8) from Grass Creek, Idaho. This brightly 

 colored species differs from the last in the obtuse muzzle, large eye, and 

 smaller scales above the lateral line. 



Catostomus generosus, G., (Proc. Acad. Nat. Soi. Phila., 1856,174;) 

 Acomus generosm, O., (U. S. Pac. K. E. Surv., X, p. 221.) 

 This species is closely allied to the eastern C. teres, Mitch. : from Utah 



Lake. 



PERCOMORPHL 



Uranidea punctulata, Gill, (Proc. Boston Soc. N. H., 1862, p. 41.) 

 Gallatin Fork of the Missouri and Warm Springs, Utah. 



OOTTOPSIS SEMISCABEE, CopC, Sp. nOV. 



Eadii, D. VII-18 ; A. 13 ; Y. 1-4 ; first ray of anal below third of 

 second dorsal. Skin prickly above the lateral line, smooth below it 

 posteriorly. Body compressed, profile rising rather steeply to the basis 

 of first dorsal fin. Eye 4.5 times in head, .75 time in interorbital space. 

 Muzzle contracted, maxillary bone reaching to below middle of pupil. 

 Two spines on preoperculum. On an inferior anterior angle of opercu- 

 lum. Lateral line discontinued on last fourth of caudal peduncle. Head 

 one-third length without caudal fin. 



Below yellow ; dorsal line with a series of dark spots ; sides with 

 large, dark clouds. 



Three specimens from Fort Hall, Idaho. 



