GEOLOGICAL SURVEY OF THE TERRITORIES. 433 



TELEOSTEI. 



Cottidce. 



Uranidea Punctulata, Gill, (Potamocottus;) Proc. Boston Soc.N.H., 

 L861, 40. — Head- waters of Green Biver. 



Salmonidce. 



Salmo (Salar) viRGiNALis,Girard ; United States Pacific Baiiroad Sur- 

 vey, Vol. X, p. 320, PI. LXIII, figs. 1-4.— This species is well figured 

 by Girard as above. An error occurs in the enumeration of rays, where 

 the branchiostegals are said to number 9-9 ; they are, I find in three 

 specimens, 11-11. The species is distinguished from 8. iridea, Girard, by 

 its more slender form and fewer anal and dorsal radii. When the spe- 

 cimens were first received they exhibited short, broad, longitudinal red 

 bars along the lateral line. 



Seven specimens, two from Henry's Fork Green Biver, and two from 

 near Fort Bridger. 



SALMO (SALAR) STOMIAS, (COPE ;) Sp. UOV. 



Salmo (Trutta) lewisii, Cope. Proceed. Acad. Nat. Sci., Phila., 1865, 

 nee. Girardii. 



General form short and stout, the head large and wide, with wide mandi- 

 ble and mouth. The length of the head enters four times to near the emar- 

 gination of the caudal fin, and the depth at the first dorsal ray four 

 times in the length to the end of the basal scales of the caudal. 

 The base of the first dorsal ray is nearly equidistant between the end of 

 the muzzle and base of caudal fin, or, more exactly, rather nearer to the 

 base of the marginal caudal ray than to the muzzle. Badii, B. 10, D. II. 

 12, A. II. 10, V. 9. The end of the maxillary extends half the eyes 

 diameter behind the margin of the eye. Interorbital width 3.5 times in 

 length of head ; eye, 4. 6 times in the same, and equal to the length of 

 the muzzle. Symphysis of mandible equal to or shorter than muzzle ; 

 gape wide. Forty-two longitudinal scales above the laternal line. Max- 

 illary bone of nearly uniform width. 



There are indistinct brown blotches on the sides, and numerous black 

 spots on the posterior dorsal region, the entire caudal peduncle and the 

 two dorsal and caudal fins ; anal unspotted; spots few in front of dorsal. 



M. 



Total length of smaller specimen 0. 227 



Length of head 0515 



Length to ventrals 106 



Length to aual 15 



Width lower jaw, at orbits 0168 



This species is an ally of the 8. lewisii, 8. virginalis, and 8. iridea. 

 From the last of these the fewer anal radii distinguish it. From 8. vir- 

 ginalis the stouter form, wider head with shorter muzzle, and one less 

 branchiostegal ray, separate it. Thus in that species the head enters the 

 length to the end of the caudal scales four times, and the depth 4. 5 

 times. The dorsal is considerably nearer the end of the muzzle than the 

 basis of the caudal. The eyes and interorbital widths are less. The 8. lew- 

 isii, like 8.stomias, from Mississippi waters, is more like 8. virginalis in all 

 the respects mentioned, according to both the description and figures of 

 Girard, but adds the peculiarity of only 10 branchiostegals instead of 11. 



Two specimens from the Platte Biver, from near Fort Biley, Kansas. 

 Discovered by William A. Hammond, M. D. 



C ore gonus "WILLIAMsonii, Girard; United States Pacific Baiiroad 

 Beports, X, p. 326, PI. LXVL— The Bocky Mountain white fish. 

 28 G 



