lizards in-hand, ventral views, 2007-2010

December 6, 2010

Here are more photos of lizards plus my fingers.  Sometimes observations of their bellies can be instructive.

The first six shots here are adult western fence lizards: three males followed by three females.  Notice that the females can be quite colorful also, but they lack the males’ enlarged postanal scales at the base of the tail.  (For more photos on this topic, see here.)

This first male is quite drab-looking for an adult male, but I believe to reasons for this are: 1) this one was just about to shed its skin, and 2) mid-September, when this photo was taken, is several months later than the species’ annual breeding time of ~May, when males’ color is probably most intense.

western fence liz, male, ventral, S Oquirrh Mtns

mid Sept 08, western fence liz (Sceloporus occidentalis), male, ventral, S Oquirrh Mtns, Utah Co, UT

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western fence liz, male, ventral, Mineral Mtns

early July 2010, western fence liz (Sceloporus occidentalis), male, ventral, Mineral Mtns, Beaver Co, UT

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western fence liz, male, ventral, Deep Creek Mtns

late Aug 2010, western fence liz (Sceloporus occidentalis), male, ventral, Deep Creek Mtns, Tooele Co, UT

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western fence liz, female, ventral, Deep Creek Mtns

late Aug 2010, western fence liz (Sceloporus occidentalis), female, ventral, Deep Creek Mtns, Tooele Co, UT

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western fence liz, female, ventral, S Stansbury Mtns

mid Oct 2010, western fence liz (Sceloporus occidentalis), female, ventral, S Stansbury Mtns, Tooele Co, UT

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western fence liz, female, ventral, South Snake Range

late May 09, western fence liz (Sceloporus occidentalis), female, ventral, South Snake Range, White Pine Co, NV

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This specimen below is a subadult male.  Despite his smaller size and less intense blue color, he clearly shows the enlarged postanal scales that mark him as a male.

western fence liz, subadult male, ventral, S Oquirrh Mtns

late May 07, western fence liz (Sceloporus occidentalis), subadult male, ventral, S Oquirrh Mtns, Utah Co, UT

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Below is a ventral shot of a neonate of this species, probably ~2 months after it emerged from its egg.  I neglected to examine this one for enlarged postanal scales, but notice that the blue ventral coloration is apparent even in one this young.

western fence liz, neonate, ventral, Antelope Range

mid Oct 09, western fence liz (Sceloporus occidentalis), neonate, ventral, Antelope Range, Iron Co, UT

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Now for a few shots of some other species.

Here is a ventral shot of one of Utah’s eastern fence lizards, the fence lizard species that I encounter less often:

eastern fence liz, female, ventral, Pine Valley Mtns

mid June 2010, eastern fence liz (Sceloporus undulatus), female, ventral, Pine Valley Mtns, Washington Co, UT

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I have been less inclined to photograph sagebrush lizards.  This is my only ventral shot of one of them.

sagebrush liz, male, ventral, N Snake Range

mid May 07, sagebrush liz (Sceloporus graciosus), male, ventral, N Snake Range, White Pine Co, NV

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Lastly, here are ventral shots of two female horned lizards, one from each of Utah’s two species of this genus.  At some point perhaps I’ll take ventral shots of these species’ males, to compare.

short horned liz, female, ventral, Wasatch Mtns

early July 08, short horned liz (Phrynosoma hernandesi), female, ventral, Wasatch Mtns, Salt Lake Co, UT

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desert horned liz, subadult female, ventral, Deep Creek Mtns foothills

late Aug 2010, desert horned liz (Phrynosoma platyrhinos), subadult female, ventral, Deep Creek Mtns foothills, Tooele Co, UT

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