YorXc; SALMON, A I'MM!. 77 



naturalist has taken the {jreat Lake Trout, or .Maekinaw Sahiion 

 {Salmo Ainetfiijstujt), and the Brook Trout {Salmo Fontinali:*), 

 which abounds in all small streams, wherein it is bred, in this 

 same form. 



There only remain to he aeeounted for some two or three 

 species: the great Grey Trout of Britain, the Sea Trout {Sialtno 

 T^'iitta), :uul till- Silver Trout {Sti/iiu) Ldntsfris), of continental 

 Europe; and on this continent, the Siskawitz {Salmo Siskawit::) , 

 and the Lake Trout {Salmo Coujinis), of Dekay, if the latter he 

 a distinct fish from Anu't/njstiis. 



No cs|)ccial search has been instituted for the fry of any of 

 these fish last named ; so tliat the non-discovery j;;ocs no way to 

 prove their non-existence ; ou the contrary, all analogy goes to 

 show that they will be discovered in tinu\ 



As it now stands, of fourteen the most strongly-marked 

 Salnwuidfp, nine have been clearly traced to this form ; and the 

 five missing species are either analogous, as the three European 

 species, or closely congenerous, as the two American Lake 

 Trout, to one species Anu-tlnjstus, which is shown to be no 

 exception to the rule. 



Every migratory species of Salmo is found in this stage ; and 

 one of the five or six non-migratory. All analogy, therefore, 

 goes to show that these species will be found, on nscareh, not 

 to denate from the rule of their ordei . 



Mr. Shaw goes farther, and argues that no such perfect fish 

 as the Parr exists ; and that all the fish so named by diflerent 

 ohseners arc in truth the young of different species of the 

 Salmon family. 



Against this fact, Mr. VamM reclaims; and justly remarks 



