82 PROCEEDINGS OF UNITED STATES NATIONAL MtlSEtJM. [1885. 



name of Sabno purpuratus. I have notPallas's desciiptiou at hand, but 

 unless I am mistaken he refers to the crimson blotches under the lower 

 jaw, which are characteristic of Salmo clarTcii in all its forms and varie- 

 ties. That S. clarld occurs in Kamtschatka admits of little doubt, as, 

 according to Dr. Bean (Proc. U. S. Nat. Mus., 1881, 258), it is abundant 

 all along the coast as far as Northern Alaska. As the species freely 

 enters the sea northward, there is no a priori reason for supposing that 

 it does not cross to Kamtschatka. This is perhaps the Salmo mylciss of 

 Walbaum, a name still older than S. purjyuratus. 



G. Salmo virginalis.— M^i:. Garmau is probably right in regarding 

 Salmo spilurus (with S. pleuriticus) as a variety of S. clarJci rather thau 

 as a distinct species, as given in our Synopsis ; but I think that he is 

 wrong in regarding the Salmo virginalis of Utah Lake as the same form. 

 I have examined the original types of Salmo virginalis, and I have col- 

 lected many specimens of it in Utah Lake. I cannot distinguish this 

 Utah fish from the *S'. purpuratus or clarM of the Coluuibia Eiver. If 

 I could separate it I should call it Salmo purpuratus virginalis. 



7. Salmo lewisi. — Mr. Garman recognizes the Missouri River Trout as 

 another variety of Salmo clarM. 1 have examined the original types of 

 ^S'. lewisi^ as well as numerous other examples from the Upper Missouri 

 and Yellowstone. When I had only seen a few specimens 1 thought 

 that 1 could distinguish the trout of the Missouri from the trout of the 

 Columbia. I cannot do it now. Mr. Garman is certainly wrong in re- 

 ferring the little land-locked trout of Waha Lake to the synonymy of 

 Salmo lewisi. It is a color-variety only (a case parallel with that of 

 Salmo agassisi), and its coloration is not that of the type of Salmo lewisi. 



The forms of Salmo purpuratxis may be arranged as follows : 



Salmo purpuratus, Kamtschatka. 

 Salmo purp. clarM, California to Alaska. 

 lewisi, Missouri Eiver. 

 houvieri, Waha Lake, Idaho. 

 lienshawi, Truckee River Basin. 

 virginalis, Utah Basin. 

 spilurus, Rio Grande and Colorado Basin. 

 Of these I would adopt clarM, lewisi, and virginalis, out of deference 

 to Mr. Garman's opinion, but I do not know how to characterize them, 

 nor do I think that I could pick them out if mixed up in an alcohol 

 tank or in the bottom of a boat. 



8. Salmo naresi. — No specimens of this species have yet been com- 

 ])ared with S. oquassa, but the figure and description of S. naresi fits 

 the latter very perfectly. 



9. Salmo agassizi.— The trout of Dublin Pond has been known to me 

 for many years. It is obviously a local color -variation of S. fontinaUs. 

 It may be called, in the current nomenclature, Salveliuus fontinaUs agas- 

 sizi. 



