Chaetodipus hispidus
Hispid Pocket Mouse
(Chaetodipus hispidus) | |
---|---|
Range | |
![]() | |
Taxonomic classification | |
Order: | Rodentia |
Suborder: | Supramyomorpha |
Infraorder: | Castorimorphi |
Family: | Heteromyidae |
Subfamily: | Perognathinae |
Genus: | Chaetodipus |
Binomial details | |
Chaetodipus hispidus (S. F. Baird, 1858) |
Description
From Hoffmeister (1986): "A large species; head-body and tail of about equal length, and each about 100 mm; skull large but mastoid bulla relatively short and uninflated; interparietal especially long and wide; tail not bushy distally." Ear with a lobed antitragus.
From Paulson (1988): "The pelage is harsh; upper part s ochraceous mixed with black, venter whitish. In some regions the dorsal pelage has an olive tone (Schmidly, 1977). The tail is well haired, but not crested, with a black dorsal stripe, buffy sides, and white underside."
From Armstrong et al. (2010): "The hispid pocket mouse is the largest pocket mouse in Colorado. Adult fur is somewhat harsh to the touch and coarse in appearance relative to that of other pocket mice. Juveniles have much softer hair. Dorsal color is yellowish to reddish buff intermixed with black hairs. The sides are paler in color, shading to white on the venter. The scantily haired tail is dark above and pale below and lacks the conspicuous terminal tuft of kangaroo rats."
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 |
---|---|---|---|---|---|---|
Colorado | Armstrong et al. (2010) | 200–260 | 95–126 | 25–29 | 11–13 | 40–70 |
Nebraska (western) | Paulson (1988) | 203–237 (n=10) | 93–114 (n=10) | 23.5–29.5 (n=10) | 32.0 (n=7) | |
North Dakota | Seabloom et al. (2020) | 220 | 107 | 26 | 13 | 48 |
not reported | Ceballos (editor, 2014) | 152–230 | 72–113 | 22–29 | 10–13 | 15–60 |
Texas | Schmidly & Bradley (2016) | 198 | 93 | 24 | 30–47 |
Skull
From Armstrong et al. (2010): "The skull, although larger (condylobasal length usually more than 29 mm), is generally similar to that of other pocket mice. Incisors are conspicuously grooved."
Similar species
From Paulson (1988): "Chaetodipus hispidus is larger (total length usually > 180 mm and length of hind foot usually > 22 mm) than most of the pocket mice with which it occurs; total length in Perognathus amplus, P. fasciatus, P. flavus, and P. flavescens is < 170 mm and length of hind foot is < 22 mm. C. hispidus differs from other Chaetodipus in having a noncrested tail equal to or shorter than the length of the head and body. Total length in C. intermedius usually is < 180 mm and length of hind foot is < 22 mm. The dorsal fur of C. hispidus is coarser, with more buff to ochraceous tones than that of the grayer C. baileyi. The conspicuous buff to ochraceous lateral stripe in C. hispidus is lacking in C. baileyi and C. penicillatus. The skull of C. hispidus has a conspicuous supraorbital bead, and the auditory bullae are less inflated than in other pocket mice with which it occurs. The similarly sized Liomys [Heteromys] irroratus has coarser pelage, is dark gray dorsally, and lacks the grooved upper incisors of pocket mice."
Species | Size | Pelage appearance | Postauricular patch | Subaruicular spot | Antitragus | Tail bicolored | Tail crest | Tail tuft | Rump spines | Lateral lines | Lateral line color |
---|---|---|---|---|---|---|---|---|---|---|---|
Chaetodipus baileyi | large | coarse | absent | when present, it is small | lobed | indistinctly | present | present | absent | faint or absent | buff |
Chaetodipus collis | medium | coarse | absent | when present, it is very small | lobed | distinctly or indistinctly | present | present | present | present | ochraceous-buff, fawn-colored |
Chaetodipus eremicus | medium | somewhat soft | present | absent | lobed | distinctly | present | present | absent | present; poorly defined | yellowish to ochraceous |
Chaetodipus hispidus | large | coarse and hispid | absent | absent | lobed | distinctly | absent | absent | absent | present; wide | ochraceous |
Chaetodipus intermedius | small to medium | coarse | absent | absent | lobed | distinctly | present | present | present; may be difficult to detect | absent | - |
Chaetodipus penicillatus | medium | smooth to coarse | present; faint | absent | lobed | distinctly | present | present | absent | faint or absent | buff |
Perognathus amplus | small | smooth | present; light-colored (not especially conspicuous) | present; white | absent | distinctly (more or less) | absent | absent | absent | present | buffy |
Perognathus fasciatus | small to medium | smooth | present: buffy | present; white | absent | indistinctly | absent | absent | absent | present | bright buffy to yellowish buff |
Perognathus flavescens | small to medium | smooth | present; small, clear buff | absent | absent | indistinctly | absent | absent | absent | present; clear buff | dark ochraceous to pale yellowish |
Perognathus flavus | small | smooth | present; buff | present; white or buff | absent | no | absent | absent | absent | present; may be indistinct, buff | buff or ochraceous |
Perognathus merriami | small | smooth | present; clear buff | present; white | absent | indistinctly | absent | absent | absent | faint |
References
Armstrong DM, Fitzgerald JP, Meaney CA. 2010. Mammals of Colorado, Second Edition. Denver (CO, USA): University Press of Colorado.
Baird SF. 1857. General Report upon the Zoology of the Several Pacific Railroad Routes. Part I. Mammals. A. P. Nicholson, Washington, 757 pp.
Ceballos G, editor. 2014. Mammals of Mexico. Baltimore (MD, USA): Johns Hopkins University Press.
Hoffmeister DF. 1986. Mammals of Arizona. Tucson (AZ, USA): University of Arizona Press.
Paulson DD. 1988. Chaetodipus hispidus. Mammalian Species (320): 1-4.
Schmidly DJ. 1977. The mammals of Trans-Pecos Texas. College Station (TX, USA): Texas A&M University Press, 225 pp.
Schmidly DJ, Bradley RD. 2016. The mammals of Texas. Austin (TX, USA): University of Texas Press.
Seabloom R, Hoganson JW, Jensen WF. 2020. The mammals of North Dakota. Fargo (ND, USA): North Dakota State University Press.