PISHES OP VERMONT. 599 



"The specimen here descri i M/ her abdomen filled with < ■ 



contained in two o ai e rhiche tended neai cde length of th< This 



figh abonnds much more in th< ler lakes i • than ... Lake 

 Champlain." 



Family GASTEROSTEIDiE The Sticklebacks. 



39. Eucalia inconstans (Kirtland). Brool Stickli 



Through the kindness of Mr. John W. Titcomb the Coma 

 a specimen of this speciea from a small brook iu Franklin County, Vt, This 

 brook, which is the outlet of Franklin Pond, empties into I 



from Vermont, through Canada, into Missisquoi Bay. Mr. Titcomb says that the 

 stickleback is reported to be common in tljat particular brook, but he does not think 

 he has seen h elsewhere in the 6 1 



Mr. Thompson appears not to have noticed it. 



Family FERCOPSIDiE. The Trout Perch. 



40. Percopsis guttatus Agassiz. Trout Perch. 



Concerning the discover} and earning of this interesting ash Mr. Thompson has 

 the following : 



"The first knowledge I bad of this fish was in the summer of 1841, ■■ h< I found 

 a specimen of it. 5 inches long, which was dead, and had been drifted np by the - a e 

 on the lake shore in Burlington. On examining it J found it to possess the adipose 

 and abdominal fins of the trout, but in it- teeth gillcovers and particularly in 

 its hard, serrated scales, to bear considerable resemblance to the perch family. After 

 searching all the books within my reach without finding it described I concluded 

 that it might be new, both in genua and species, and accordingly, in allusion to the 

 above-mentioned properties, J described it in my journal ander the provisional 

 generic name of Salmoperea. A notice of this fish was omitted in my History oi 

 Vermont, published in 1842, because I had then only one specimen, and upon that one, 

 with my little experience, J did not think it prudent to found a i and 



species. When Pro at Burlington in 1847 I submitted the above- 



mentioned specimen to his inspection, having time obtained no others. At 



first sight he thought it might be a young fish of the salmon family, but upon 

 further examination he -aid ii was not a salmon, nor any other fish with which he 

 was acquainted. 



"During the summer of 1847 1 found three other specimens of this fish, dead, on the 

 lake shore. One of these 1 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. 11. Storer, M. !>.. with a request that he would ascertain what i - 

 and let me kno 



" In May, 1849, 1 o >ta oed from Winooski River a number of living specimens, which 

 I kept alive for some time; and, observing the gr< I icency of the living 



when held up toward the lighi 1 ga^ e it the spe< i. - u me of pellucida, having p • 

 called it. in my journal, eoceta, from its wing-like pectoral fins. 



'•'About this time 1 noticed, in the proceedings of the Boston Natural 



History, that Profess i iz had laid before th< a account of a new genus 



of fishes discovered by him in Lake Superior, which he proposed to call Perec 



• in the brief description given of it, that it was identical with my 

 Salmoperea, I wrote to Dr. Storer and inquired of him if the specimens from I 



presented ■ like the one I put into 



his hands in 1847. H<- wrote me that he could n<.T say— that th<- Bp< cimen went out 

 of his haii'. <-d it and he had not seen it - 



"In Professor Ag perior, page 248, 1 find an account of his genus 



</>*/'* and his 8] ■ p doubt th atical with my 



loperca pelltu SI hav< thought it best remain, in this Appendix, 



under the name I had given." 



