. Biologia centrali-americana. Pisces. Zoology; Fishes; Zoology. XIV INTEODUCTION. is supposed to be supported by the occurrence in the Eocene of Wyoming and Utah of a fish, Priscacara, which has been referred by some authors to the Cichlidiu. But Priscacara has ireither the reduced number of branchiostegals nor the toothless palate which characterize all living Cichlidiie, and it appears to me that it has no bearing on the -problem of how two very closely allied genera, Acara and Paratilaina, differing from it and agreeing with each other in some important features which are obviously due to
. Biologia centrali-americana. Pisces. Zoology; Fishes; Zoology. XIV INTEODUCTION. is supposed to be supported by the occurrence in the Eocene of Wyoming and Utah of a fish, Priscacara, which has been referred by some authors to the Cichlidiu. But Priscacara has ireither the reduced number of branchiostegals nor the toothless palate which characterize all living Cichlidiie, and it appears to me that it has no bearing on the -problem of how two very closely allied genera, Acara and Paratilaina, differing from it and agreeing with each other in some important features which are obviously due to their near relationship, have come to inhabit South America and Africa DlSTEIBUTIOK OP GlCHLIDJ!. The Indian Etrojjhis is an isolated type, more specialized than Parctroi^lus of Madagascar, which appears to be its nearest relative, and, as has already been stated, a study of the American Cichlida; leaves no possible doubt that the Mexican and Central-American Cichlid fauna has originated with immigrants from South America; consequently the hypothesis of the northern origin of the family should, I think, be rejected. We are therefore led to believe that in early Eocene times Africa was connected by land with South America on the one side and with India, vid Madagascar, on the other. The Mexican and Central-American Cichlidic number about G5 species; they are. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Godman, Frederick Du Cane, 1834-1919. ed; Regan, Charles Tate, 1878-. [London, Pub. for the editor by R. H. Porter]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfishes, booksubjectzo
