. The fishes of North and Middle America [microform] : a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Fishes; Fishes; Poissons; Poissons. irrp' gtrr^w^ti^w'vT'viJ^J/^7Jir"'°^'V"'S'yT. 'r»,1 iW «' '''f' V""^ 4" K I'WI' !PI~^" - """W 1000 Bulletin 47, United States National Museum. »(. â y . in ono or two other species of Lepomia, It disappears by degrees, Imt seems to exiHt in all the species, thougli sometimes so Binali n» tu hv inappreciable. I have oven fou
. The fishes of North and Middle America [microform] : a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Fishes; Fishes; Poissons; Poissons. irrp' gtrr^w^ti^w'vT'viJ^J/^7Jir"'°^'V"'S'yT. 'r»,1 iW «' '''f' V""^ 4" K I'WI' !PI~^" - """W 1000 Bulletin 47, United States National Museum. »(. â y . in ono or two other species of Lepomia, It disappears by degrees, Imt seems to exiHt in all the species, thougli sometimes so Binali n» tu hv inappreciable. I have oven found it present in large speciineii!* of L. pallidun. Its presence in the species is only a character of dciriw, therefore not generic. Till the group has been more fully stiKlicd A'tnoth was supposed to contain a large number of species, and wnn separated from Lepomts principally for convenience sake, iiiid (Jii the slight character of the feeble gill rakers. By a comparison of :i v(>rv large series of the alleged species from Professor Jordan's collection j have come to the conclusion that they are all forms of a single Hpeeies, The gill rakers are usually rather more feeble than in the rest of the 8])ecies of lAponih, but this again is a question of degree, liriitlnx lias been distinguished from Lipotmn by the presence of palatine toetli. is also a character of degree, and is subject to the most perfect gradation. I have found it impossible to retain Xy^tropUhn and EupomoI'm also, as there is complete gradation in the character of the pharyngeals lietween Lcpumis proper and Xystroplitin and again between XyntroplHin and Eiijm- inotiH, both as to the width and form of the bones themselves and tliu form of the ; (McKay, Proc. U. S. Nat. Mus., 1881, p. 88.) (/*-,.. .scale; TTM/io, operculum, a character supposed to distinguish the geuuH from Sparua.) a. Pectoral fins Bliorl, obtuse, not roacliing beyond front of anul, considerably .sluirtiT tliuii
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectfishes, bookyear1896
