Dipodomys simulans
| Dulzura Kangaroo Rat
(Dipodomys simulans) | |
|---|---|
| Range | |
 | |
| Taxonomic classification | |
| Order: | Rodentia |
| Suborder: | Supramyomorpha |
| Infraorder: | Castorimorphi |
| Family: | Heteromyidae |
| Subfamily: | Dipodomyinae |
| Genus: | Dipodomys |
| Binomial details | |
| Dipodomys simulans (Merriam, 1904) | |
| Other resources | |
| Full taxonomic details at MDD | |
Based on chromosomal, allozymic, morphologic, and ecologic differences between two chromosomal forms of Dipodomys agilis, Sullivan & Best (1997) recommended that the northern 2n = 62 chromosomal form be referred to as Dipodomys agilis and the 2n = 60 chromosomal form be given specific status as Dipodomys simulans.
Description
From Ceballos (ed., 2014): "Dipodomys simulans is medium in size; its dorsal coloration is dark brown, and the ventral surface is white. The tail is hairy with a dark line in the lower surface that extends to the tip. The ears are small ... and they have 5 toes with claws on each foot (Hall, 1981; Whitaker, 1980; Williams et al., 1993)."
External measurements
Length measurements are in millimeters (mm) and weight measurements are in grams (g), unless stated otherwise. If available, the sample size (n=) is provided. If a range is not provided and n= is not given, then the listed measurement represents an average.
| Part of range | Reference | Total length | Tail length | Hindfoot length | Ear length | Mass |
|---|---|---|---|---|---|---|
| not reported | Ceballos (editor, 2014) | 265–319 | 155–203 | 43–46 | 12–16 | 45–77 |
Skull characters
From Jameson & Peeters (2004): "It is similar to the Pacific Kangaroo Rat (D. agilis), but the skull is relatively broader and the auditory bullae are kidney shaped rather than oval."
Similar species
Jameson & Peeters (2004) noted that the Agile Kangaroo Rat (Dipodomys agilis) is similar to D. simulans, but when viewed from above, the auditory bullae are oval in D. agilis and kidney shaped in D. simulans.
From Sullivan & Best (1997): "Several characters reliably separate D. agilis from D. simulans, including larger size, narrower skull, and more oval-shaped auditory bullae of D. agilis as viewed from above."
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References
Ceballos G, editor. 2014. Mammals of Mexico. Baltimore (MD, USA): Johns Hopkins University Press.
Jameson EW, Peeters HJ. 2004. Mammals of California (No. 66). Berkeley (CA, USA): University of California Press.
Sullivan RM, Best TL. 1997. Systematics and Morphologic Variation in Two Chromosomal Forms of the Agile Kangaroo Rat (Dipodomys agilis). Journal of Mammalogy 78(3): 775-797.