46 Kendall — Notes on Percopsis guttatus and Salmo omiscomaycus. 



true intermediate type between Pereoicls and Salmonidse, and 

 should be considered as the type of a distinct family, under the 

 name of Percopsides." 



Following which is a complete description of the species which 

 he names Percopm guttatus, remarking that the species was found 

 in great abundance at the " Sault St. Mary, at Michipictin and 

 at Fort William." 



It seems that the Rev. Zadock Thompson, author of " History 

 of Vermont, Natural, Civil and Statistical," had discovered the 

 same fish and named it, without publication however, sometime 

 before Agassiz announced his discovery. 



Concerning which Mr. Thompson has the following in the 

 second edition of his History, 1853, Appendix, p. 33. 



"The first knowledge I had of tins fish was in the summer 

 of 1841, when I found a specimen of it, 5 inches long, which 

 was dead, and had been drifted up by the waves on the lake 

 shore in Burlington. On examining it I found it to possess the 

 adipose and abdominal fins of the trout, but in its teeth, gill - 

 covers and particularly in its hard, serrated scales, to bear con- 

 siderable resemblance to the perch family. After searching all 

 the books within my reach without finding it described I con- 

 cluded that it might be new, both in genus and species, and 

 accordingly, in allusion to the above-mentioned properties, I 

 described it in my journal under the provisional generic name 

 of Salmoperca. A notice of this fish was omitted in my History 

 of Vermont, published in 1842, because I had then only one 

 specimen, and upon that one, with my little experience, I did 

 not think it prudent to found a new genus and species. When 

 Professor Agassiz was at Burlington in 1847 I submitted the 

 above-mentioned specimen to his inspection, having at that time 

 obtained no others. At first sight he thought it might be a 

 young fish of the salmon family, but upon further examination 

 he said it was not a salmon, nor any other fish with which he 

 was acquainted. 



' ' During the summer of 1847 I found three other specimens of 

 this fish, dead, on the lake shore. One of these I took with 

 me to Boston in September to the meeting of the Association of 

 American Geologists and Naturalists, and put it into the hands 

 of my friend, D. H. Storer, M. D., with a request that he would 

 ascertain what it was and let me know. 



" In May, 1849, I obtained from Winooski River a number 



