164 PROCEEDINGS OF THE ACADEMY OF 



Lygsna Scudderii, iiov. sp. Expands 1*1 inch. 



Male. In size, form and color resembles iEgon of Europe. Upper side 

 dark violet blue ; hind margin of both wings and costal margin of secondaries 

 edged with black ; costal margin of primaries has a fine black border ; fringe 

 white. 



Under side dark grey; primaries have an oval black discal spot, a trans- 

 verse, tortuous series of six black spots, all edged with white, the one next 

 the inner angle double, the fifth twice as long as the others ; on the hind 

 margin a double series of faint spots ; secondaries with four black spots near 

 the base, one being very close to the inner margin, and minute ; a discal 

 streak and a series of eight spots in a double unequal curve, all of which, aa 

 well as tbe basal spots, are edged with white ; a marginal series of six or 

 seven metallic spots, each surmounted by a spot of fulvous, which is bordered 

 anteriorly by a dark crescent ; these metallic spots are edged posteriorly and 

 sometimes replaced by black ; ends of nervures expanded into small black 

 spots. 



Female. Upper side brown, with a black discal spot on primaries ; second- 

 aries with a marginal row of obsolete spots surmounted by greyish crescents. 

 Under side pale buff; primaries as in the male, except that the discal spot is 

 preceded by a small double spot, and all the spots are larger ; on the second- 

 aries the spots are less distinct and some of them wanting ; the transverse 

 series is set in a band of white ; marginal spots without the metallic gloss. 



Lake Winnipeg. From Mr. S. H. Scudder, of Cambridge, Mass. 



Lyc^exa fuligixosa, nov. sp. Expands 1*3 inch. 



Male. Upper side entirely blackish-brown ; fringe lighter. Under side 

 light brown, with a dark discal spot and a double row of rusty points parallel 

 to the hind margin of both wings, the outer row on primaries obsolete. 



Female a little larger, of lighter color both above and below, but similarly 

 marked. 



California. From Dr. H. Behr. 



Notes on some Genera of Fishes of the Western Coast of North America. 



BY THEODORE GILL. 



The preparation of a report on the fishes collected by the naturalists and 

 other gentlemen connected with the North Western Boundary Survey having 

 been intrusted to me, I have examined almost all of the different species that 

 have been described from our Pacific waters. Such an examination soon con- 

 vinced me of the imperfect arrangement of many of our types, and has 

 induced me to undertake a careful revision of the entire ichthyic Fauna. All 

 of the families represented on our Pacific coast have been investigated, and 

 their limits defined more rigorously than had been previously done ; the 

 genera have been restricted after a comparative study of exotic as well as of 

 indigenous forms, and it has been attempted to distribute the allied genera 

 among natural subfamilies and groups. As some time may yet elapse before 

 the publication of the extended report, the following synopsis of some of the 

 genera, founded on formerly described species, may be acceptable. The 

 descriptions of new generic and specific types will be given at another time. 

 The consideration of the true nomenclature of the other species and their 

 synonymy is reserved for the Report. 



PERCOIDS. 



I. Atractoperca Gill. 



Under the name of Paralabrax, Dr. Girard has confounded two different 

 generic types of Serraninae. The first species of his genus being the Parala- 



[July, 



