46. SALMONIDJE SALVELINUS. 321 



fin very small; caudal deeply forked. Body and caudal fin covered 

 with round pale spots of moderate size. B. 12; D. 10; A. 9; Lat. 1. 

 185. Bootbia. (Giinther.) 



(Salmo hoodii Richardson, Ross, Voy. Nat. Hist. App. Iviii, and in Fauna Bor.-Amer. 

 iii, 173: Salmo Jioodii Gunther, vi, 150.) 



516. S. rossi (Rich.) J. & G. 



Olive-brown above, the dorsal and caudal similarly colored; belly 

 red ; scattered red spots near th$ lateral line. Rather slender ; snout 

 very obtuse; lower jaw remarkably long, with a knob at tip (male). 

 About 30 teeth on the tongue. Conspicuous pores on the face bones 

 posteriorly. Scales very small, imbedded. Head 5. B. 12-13 ; D. 13 ; 

 A. 11; P. 14; V. 10. Arctic Ocean, about Boothia Felix. (Richardson.) 

 An imperfectly known species. 



(Salmo rossii Richardson, Nat. Hist. App. Ross's Voy. Ivi: Salmo rossii Suckley, 

 Monogr. Salmo, 120.) 



517. . nitidus (Rich.) Gill & Jor. 



Body somewhat elongate; head moderate; snout medium. Maxillary 

 straight, strong, extending beyond the orbit in the male. Teeth mod- 

 erate, 2 or 3 behind head, of vomer. Preopercle with the lower limb 

 very distinct. Fins well developed; pectoral reaching scarcely half 

 way to ventral; caudal fin forked. Head 5. B. 11; D. 11; A. 10; Lat. 

 1.215. Boothia. (Giinther.) Perhaps a form of 8. stagnalis. 



(Salmo nitidiis Richardson, Fauna Bor.-Amer. iii, 171, 183G: Salmo nitidus Gunther, 

 vi, 150.) 



518. S. stagoialis (Fabr.) Gill & Jor. 



Body elongate; head of moderate size. Snout elongate, pointed, 

 with the lower jaw projecting beyond the upper in adult examples. 

 Teeth small. Maxillary elongate, narrow, extending beyond the eye. 

 Preopercle very short, with a very short lower limb. Opercle and pre- 

 opercle very conspicuously and densely striated, the striae radiating 

 from the base of each. Fins much developed, the dorsal much higher 

 than long ; pectoral very long, reaching more than half way to veutrals, 

 which are also very long; adipose fin very small; caudal well forked. 

 D. 11; A. 10; Lat. 1. 210; B. 11; coeca, 41. Lakes of Greenland and 

 Boothia Felix. (Gunther.) 



(Salmo stagnalis Fabricius, Fauna Grcenlandica, 1780, 175: Salmo alipes Richardson, 

 Nat. Hist. App. Ross's Voy. Ivii, and Fauna Bor.-Amer. iii, 169 : Salmo alipes Gunther, 

 vi, 149.) 



Bull. Nat. Mus. No. 1C 21 



