ADDENDA. 357 



3. 0. nerka, (Walb.) G. & J. Dos Salmon. Scales 

 large, in 133 (120—140) rows; B. 13; C. feebly forked; 

 form elongate, heavy forwards. N. W. Coast. (S. 

 lycaodon. Pall., S. cams, cooperi and richardi, Suckley. 

 S. paucidens, Rich.) 



4. 0. quinnat, (Rich.) Gthr. Quinnat. Califoenia 

 Salmon. Scales large, in 120 — 140 rows; B. 15; C. 

 well forked; body deepest mesially, less elongate. W. 

 Coast, now largely introduced into Eastern waters. (S 

 argyreus, Grd., 8. warreni, Suckley.) 



** Body oblong, very strongly compressed, back elevated, the 

 dorsal fln posterior ; mouth large, the lower jaw rather the 

 longer ; sexual peculiarities moderately developed ; size 

 small. (Hypsifcvrio, Gill.) 



5. 0. kennerlii, (Suckl.) Jor. Red Salmon of the 

 Chilowbtuck. Scales- large, in 130 — 140 rows. W. 

 U.S. 



2. SALMO, Linnaeus. Salmons. 

 {Fario, Val., Salar, Val., Trutta, Siebold.) 

 * Anadromous salmon with the vomerine teeth little developed, 

 those on the shaft of the hone few, deciduous ; scales large 

 (in ahout 130 rows) ; caudal fln well forked, truncate in very 

 old individuals ; no hyoid teeth; lowerjaws hooked upwards 

 in breeding males, the upper jaw being then emarginate 

 or perforate. (Salmo.) 

 1. S. salar, L. Common Salmon (see text). When 

 landlocked in inland lakes, it becomes var. sebago. {S. 

 gloveri, Grd., S. omiscomaycus, Walb.) 

 ** River salmon, with the vomerine teeth largely developed, those 

 on the shaft of the bone numerous, in one zigzag row, or in 

 two alternating rows, persistent; caudal little forked. 

 {Saia/r, Val.) 

 t Hyoid bone toothless. 

 a. Scales large, in 180—150 transverse rows; caudal fln 

 forked. 



