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The taxonomic status of some southwestern skinks of the multivirgatus group

The taxonomic status of some southwestern skinks of the multivirgatus group

Copeia (2): 111-123

Eumeces gaigei and E. taylori are shown to be invalid spp., both forms being inseparable from E. multiyirgatus. Recognition of E. gaigei as a distinct sp. was the result of confusion caused by ontogenetic pattern change. E. taylori is demonstrated to be an allelomorphic pattern variant. Differences in the ecological distribution of the striped and unstriped (taylori) phases in w. Texas and New Mexico indicate that the unstriped phase may be of superior selective value in lower and more xeric habitats. An analysis of geographic variation revealed that E. multivirgatus is composed of a n. subdivision of fairly uniform ecology and morphology, and a s. subdivision which occurs over a wide range of habitats and is morphologically more variable. It is suggested that the n. segment be recognized as E. m. multivirgatus Hallowell and the s. segment as E. multivlrgatus gaigei Taylor.

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Accession: 023965497

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DOI: 10.2307/1439398

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