256 PROCEEDINGS OF THE ACADEMY OP [1886. 



A REVISION OF THE AMERICAN SPECIES OF THE GENUS GERRES. 

 BY BARTON W, EVERMANN AND SETH E. MEEK. 



In the summer of 1883 we published in the Proceedings of the 

 Academy of Natural Sciences of Philadelphia, pp. 116 to 124, a 

 *' Review of the Species of Gerres found in American Waters." 

 In December of the same year, Dr. Jordan made a large collection 

 of the Atlantic species of this genus at Cedar Keys, Key West 

 and Havana. A large portion of this collection is now in the 

 Museum of the Indiana University, and constitutes the material 

 upon which the present paper is based. 



The present collections contain numerous specimens of species 

 not before examined by us, and, in the light of the new relation- 

 ships which an examination of them discloses, we have thought 

 it best to attempt an entire revision of the genus. We have 

 therefore collected all the synonymy up to date, made an analyt- 

 ical key by which the species can be determined, and given a 

 detailed description of all the species now before us. To the 

 account of the Pacific Coast species, as given in the former 

 paper, we have now nothing to add, as the very extensive collec- 

 tion of them studied by us has been since mostly destroj^ed by 

 fire. 



We take this opportunity of acknowledging our indebtedness 

 to Dr. Jordan for the use of his library, and for other aids. 



Genus GERRES Cuvier. 



Oerrcs Cuvier. Regne Animal, ed. 2, ii, 104, 1829 (r/iombeus, etc.). 

 Catoclmnum Cantor. Cat. Malayan Fishes, 55, 1850. (Proposed for 



Oerres Cuv., regarded by Cantor as preoccupied by Qerris Fabricius). 

 Diapterus UauzsLni. Nov. Comment. Acad. Bonom., 1841 {plumieri, etc.). 

 Eucinostomus Baird and Girard. Ninth Smithsonian Report, 1855, 20 



(argenteus = gula). 

 Synistius Gill. Pioc. Acad. Nat. Sci. Phila., 1862, 238 (longirostris). 

 Mojarra Poey. Enum. Pise. Cub., 50, 1875 {rhombea = olistJiostoma). 



Analysis of Species of Gerres. 



a. Preorbital and preopercle entire ; body elongate, the depth 

 2^ to 4 in length to base of caudal (Eucinostomus Baird 

 and Girard). 



