Chaetodipus siccus (Osgood, 1907)
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2009.00630.x |
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DOI |
https://doi.org/10.5281/zenodo.5491775 |
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persistent identifier |
https://treatment.plazi.org/id/03C62313-FFEE-FFA5-FC16-F921B4193C26 |
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treatment provided by |
Valdenar |
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scientific name |
Chaetodipus siccus |
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CHAETODIPUS SICCUS View in CoL
Distribution: The original distribution of C. a. siccus was Cerralvo Island (geographical group 29), which is close to the south-eastern coast of the peninsula. However, specimens of the C. arenarius complex collected in the Los Planes Basin (geographical group 31) are genetically similar to the Cerralvo Island population. Los Planes Basin is surrounded by mountain ranges on three sides and opens to the Gulf of California facing Cerralvo Island, which is 11 km off the coast ( Gastil, Minch & Phillips, 1983). The relatively high ridges isolate the population from other species in the C. arenarius complex ( C. dalquesti and C. arenarius ).
Diagnosis: Following Osgood (1907), C. siccus is similar to C. arenarius ; however, externally it is decidedly larger than C. arenarius , with very weak or rarely present rump bristles. The skull is decidedly larger and heavier; the mastoids are somewhat larger and have broad ascending branches of the supraoccipital ridge.
Subspecific taxonomy: No genetic or morphological differences were found amongst the specimens from the basin and the island. The evidence does not support the designation of any subspecies as C. siccus .
Comments: The five specimens from Cerralvo Island have the same haplotype .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.