45 , 



:and ten rays: anal fin lanceolate whitish, with a longitudinal lino 

 black anteriorly and red posieriorly. 



It is found in the brooks of the Alleghany mountains falling^ 

 into the Alleghany and Monongahela. It has the manner of 

 the small Brook-trouts, and is called Mountain-trout, Creek* 

 trout, ^c. It is easily caught with the hook, baited with earth- 

 worms, and they may be enticed by rubbing the bait and hook 

 with asafcetida like many other fishes. They afford a very good 

 food. Length about eight inches. Haad olivaceous with vio- 

 let shades. Iris brown. Dorsal fin rufous with brown lines 

 parallel with the back. Pectoral fins oval, not reaching the 

 base of the dorsal nor abdomiaal fins, redish below, whitish a- 

 bove, with a brown line. Abdominal fins with nine rays and 

 similar to the pectoral fins in colour, scaly appendage very small. 

 Tail with brown shades. Adipose fin acute. Diameter of the 

 body one sixth of the total length. I have seen some individ- 

 uals (they may be the female or a variety) who were of a paler 

 colour, with fewer and smaller dots; they had the yellowish 

 spots more crowded, the fins darker and the tail pale. 



35th Species. Black Trout. Salmo nigrescens. Truite 

 noiratre. 



Body blackish brown, with some small spots, head black; lat- 

 eral line straight: lov^er jaw hardly longer; fins and tail bla.k, 

 tail slightly forked. Dorsal fin with 10 rays, anal fin with 15 

 rays. 



A very rare species, seen only once, near the Laurel hills; it 

 is said to be found also in the Yohogheny, a branch of the Mo- 

 nongehcla. Length six inches, diameter one fifth of total 

 length. Iris black and gilt. Slightly pale under the body. 

 XV. Genus. Minny. Minnilus. Minny. 

 Body elongated, somewhat compressed, covered with small 

 scales. V^ent medial. Head flat above, and somewhat shielded. 

 Gill cover double, scaleless, three branchial rays. Mouth diag- 

 onal, small, toothless and beardless, without lips, lower jaw 

 shorter and narrower. A small trapezoidal dorsal fin, nearer to 

 the head than to the tail, opposite to the abdominal fins, and 

 ^ ithout spines. Abdominal fins with eight rays and without ap- 

 pendages. (Tail forked in all the Ohio species.) 



F 



