by which I mean, that, although differing from each other and from other species of the same genus, in several trifling respects, they often differ in an extreme degree in some one part, both when compared one with another, and more especially when compared with the species under nature to which they are nearest allied.
honekin hauxe esan nahi dut, garrantzi handirik gabeko zenbait puntutan bata bestearengandik eta beste espezieengandik diferenteak izan arren, sarri askotan arras diferenteak direla zerbaitetan, elkarrekin konparatzean, eta are diferenteagoak, natur egoeran haziriko beren antzekoena den espezieare -