1883.] NATURAL SCIENCES OF PHILADELPHIA. 141 



latter post. To these gentlemen I wish to express my thanks. 

 My especial thanks are also due to General W. T. Sherman, 

 commander-in-chief of the army, from whom I have received 

 many favors, on this and other occasions. 



Synopsis op the Fishes. 



ISOSPONDYLI. 



Salmo pnrptiratus Pallas. 



Pyramid Lake ; Chewaucan River ; Silver Creek (tributary of 

 Silver Lake) ; Klamath Lake, and Williamson's River. 



As Jordan remarks, this fish varies as to its color-shades, and 

 is hence imagined by fishermen to include several species. A 

 specimen from Link River (the part of Klamath River connecting 

 the Klamath Lakes) is nearly- silver-white. Specimens from Wil- 

 liamson's River are of darker color. I examined a large number 

 of individuals from that stream, and found the following varia- 

 tions in some of them. One specimen Br. XI ; Anal lOj ; one, Br. 



XII, A. 91; six, Br. XII, A. lOi; three,Br.XIII, A. 10| ; one, Br. 



XIII, A. Ill; one, Br. XIII, A. 12}. 



An impoi'tant food fish, sometimes reaching ten pounds in 

 Klamath Lake. 



Salvelinus malma Walb. 



Seven-mile Creek, which enters Lake Klamath from the north- 

 west. 



PLECTOSPONDYLI. 



APOCOPE Cope. 

 Apocope ventricosa Cope. Jordan, 1. c, p. 211. 



Abundant in the small streams near Fort Bidwell, N. E. Cali- 

 fornia. 

 Apocope vulnerata Cope. Jordan, 1. c, p. 210. 



Abundant in streams near Fort Bidwell, and in those tributary 

 to Warner's Lake and Abert's Lake, 



AGOSIA Gird. 



This genus is stated by Jordan to agree with Apocope, excepting 

 in the possession of a complete lateral line. 

 Agosia novemradxata Cope, sp. nov. 



Scales 11-60-11; radii, dorsal I. 9; anal I. 1. The head is 

 rather elongate, especially the muzzle, which projects a little 

 beyond the mouth. Eye 4"5 times in length of head ; 1*5 times in 



