Biological Society of Washington Vanzolinius, a New Genus Proposed for Leptodactylus Discodactylus (amphibia, Leptodactylidae) by W. Ronau) Heyer
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چکیده
The relationships of Leptodactylus discodactylus Boulenger have been obscure. In the first analysis of the relationships of discodactylus since Boulenger's description, I (1970) placed this species in the Melanonotus group of the genus Leptodactylus, based primarily on external morphology. This relationship was questioned when certain life history data were gathered (Heyer and Belhn, 1973). In a recent analysis of the relationships of the genus Adenomera within the subfamily Leptodactylinae (Heyer, 1974), I concluded that discodactylus was most closely related to Lithodytes lineatus, and with a certain amount of hesitation redefined Lithodytes to include discodactylus. Since then, the karyotype has been determined for discodactylus (Heyer and Diment, in prep.) and I have been able to examine more material of Lithodytes lineatus, which has resulted in a change of one character state. With this additional information, I believe that there is now sufficient evidence to firmly establish the generic identity of discodactylus. Previously (Heyer, 1974), primitive and derived states were defined for 50 taxonomic characters, and polarities of character states were inferred for members of the subfamily Leptodactylinae. Alternate phylogenies were constructed based on shared derived character states. One phylogeny was chosen that was thought to best represent the actual relationships
منابع مشابه
Biological Society of Washington the Karyotype of Vanzolinius Discodactylus and Comments on Usefulness of Karyotypes in Determining Relationships in the Leptodactylus-complex (amphibia, Leptodactylidae) by W. Ronald Heyer and M. Judith Diment
Information on karyotypes of several species of Üié frog genera Adenomera and Leptodactylus recently has become available. Bogart (In press) described and figured the karyotypes of 16 species of Leptodactylus and 3 species of Adenomera (reported as the marmoratus group members of the genus Leptodactylus). We have obtained information on the karyotypes of 9 species of Leptodactylus and Vanzolini...
متن کاملSystematics of the pentadactylus Species Group of the Frog Genus Leptodactylus (Amphibia: Leptodactylidae)
Heyer, W. Ronald. Systematics of the pentadactylus Species Group of the Frog Genus Leptodactylus (Amphibia: Leptodactylidae). Smithsonian Contributions to Zoology, number 301, 43 pages, 23 figures, 12 tables, 1979.—Sixteen mensural and pattern characters are analyzed for the adult members of the Leptodactylus pentadactylus species group. Available data on tadpoles, mating calls, and karyotypes ...
متن کاملThe Adaptive Ecology of the Species Groups of the Genus Leptodactylus (amphibia, Leptodactylidae).
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The Identification of Rana Ocellata Linnaeus, 1758. Nomenclatural Impact on the Species Currently Known as Leptodactylus ocellatus (Leptodactylidae) and Osteopilus brunneus (Gosse, 1851) (Hylidae)
The usage of the name Rana ocellata Linnaeus, 1758, is plagued by misidentifications and misinterpretations. After an exhaustive bibliographic review, we conclude that the Linnaeus 1758 name refers to Osteopilus brunneus (Gosse, 1851) from Jamaica, while the taxon currently known as Leptodactylus ocellatus corresponds to Rana latrans Steffen, 1815. Herein, we designate and provide descriptions ...
متن کاملDoes advertisement call variation coincide with genetic variation in the genetically diverse frog taxon currently known as Leptodactylus fuscus (Amphibia: Leptodactylidae)?
The frog Leptodactylus fuscus is found throughout much of South America in open and disturbed habitats. Previous study of genetic differentiation in L. fuscus demonstrated that there was lack of genetic exchange among population units consistent with multiple species, rather than a single species. We examine advertisement vocalizations of L. fuscus to determine whether call variation coincides ...
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تاریخ انتشار 2008