FISHES SALMONIDAE— SALMO SPECTABILIS, 



507 



The ground color of the dorsal region is greyish olive, scattered all over with dark and 

 irregular, sometimes confluent, spots, which do not extend quite to the lateral line. The dorsal, 

 adipose, and caudal fins are spotted also. The rest of the body is unicolor, yellowish grey or 

 straw color ; the anal and ventrals being of the same hue, whilst the pectorals are blackish 

 grey. The upper surface of the head is bluish black ; the sides blue and silver, with a golden 

 reflect. 



The specimen here figured and described was caught, June 1st, 1855, iu the Columbia river, 

 and prepared by Dr. Geo. Suckley, under Gov. I. I. Stevens. "They reach/' says the 

 Dr., " a weight of 40 to 50 pounds ; those of 30 pounds being quite common." 



References to the figures. — Plate LXVII, fig. 1, represents Salmo quinnat, reduced from a 

 specimen about seventeen inches in total length. 



Fig. 2 is a scale from the dorsal region, midway between the dorsal fin and the lateral line. 



Fig. 3, a scale of the lateral line. 



Fig. 4, a scale from the abdominal region, midway between the lateral line and the insertion 

 of the ventrals. 



Figs. 2 — 4 are magnified views. 



List of specimens. 



3. SALMO SPECTABILIS, Grd. 



Spec. Char. — Body sub-fusiform in profile, very much compressed, the head forming about the fourth of the total length. 

 Maxillar bone curved, extending to a vertical line passing somewhat posteriorly to the entire orbit. Anterior margin of dorsal 

 fin a little nearer the extremity of the snout than the base of the caudal. Bluish grey above ; silvery beneath. Dorsal region 

 and upper portion of the flanks spread over with light spots. 



Sys.— Salmo spectabilis, Grd. in Proc. Acad. Nat. Sc. Philad. VIII, 1856, 218. 



The only specimen which we have before us being in a rather precarious state of keeping, 

 our description of the species must, of course, remain incomplete. All the fins being broken 

 off" from their very base, the length and shape of the caudal could not be ascertained. The 

 abdomen itself is ruptured, and all the viscera are lost. In its general appearance it resembles 

 Salmo hoodii most ; is, however, distinguished from it by a more elongated and conical head, 

 hence a mouth more deeply cleft and the maxillary extending further back. 



The body is gracefully elongated, very much depressed, and fusiform in its outline, seen in 

 profile. The head, which is elongated and sub-conical, enters three times and a half in the 

 length, the caudal fin excluded, whilst in S. hoodii it enters six times and a half in the total 

 length. The mouth is deeply cleft, and both jaws are even anteriorly. The teeth are 

 conspicuous and acerated ; the largest may be observed upon the dentary (lower jaw) ; the next 

 in size are those of the premaxillar (intermaxillar), on which bones there are but few ; the 

 maxillar teeth are very much alike to those on the pterygoidian bones, but are somewhat less 

 acerated and a little stouter ; thev occupy most of the limb of the maxillary, leaving a free space 

 posteriorly equal to that situated behind the premaxillary, likewise toothless. The pterygoidian 



