Sigmodontomys alfari, J. A. Allen, 1897
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https://doi.org/ 10.5281/zenodo.6707142 |
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https://doi.org/10.5281/zenodo.6727346 |
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persistent identifier |
https://treatment.plazi.org/id/03F06D13-FF1F-20D6-0DB5-1ED70F7EFC18 |
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treatment provided by |
Carolina |
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scientific name |
Sigmodontomys alfari |
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500. View Plate 24: Cricetidae
Alfaro’s Water Rat
Sigmodontomys alfari View in CoL
French: Mélanomys d’Alfaro / German: Alfaro-Wasserratte / Spanish: Rata de agua de Alfaro
Other common names: Alfaro’s Rice Water Rat, Short-tailed Sigmnodontomys
Taxonomy. Sigmodontomys alfari J. A. Allen, 1897 View in CoL , “Jimenez (altitude, 700 feet [= 213 m]), Costa Rica.”
Sigmodontomys alfari is the type species of the genus. Apparently Sigmodontomys is nested within Melanomys in molecular based phylogenies but retained here as a full genus based on morphological grounds. Monotypic.
Distribution. Extreme E Honduras, Nicaragua, Costa Rica, Panama, W & C Colombia, NW Venezuela, and W Ecuador. View Figure
Descriptive notes. Head—body 120-172 mm, tail 149-190 mm, ear 19 mm, hindfoot 34-37 mm. No specific data are available for body weight. Alfaro’s Water Ratis a medium-sized oryzomyine, with tail longer than head-body length and hindfeet long and robust. Pelage is long, dense, and glossy; dorsally it ranges from dark ocherous orange to grizzled yellowish brown; and venter is gray, white, or ocherous. Ears are small, slightly hairy, and dark, contrasting with paler dorsal color. Manus and pes are covered dorsally with short, dark hairs. Small webs of skin are present between second, third, and fourth digits; hindfeet lack natatory fringes. Tail is unicolored and sparsely haired, without terminal tuft. There are four pairs of mammae. Chromosomal complement is 2n = 56, FN = b4.
Habitat. [Lowland forest typically from sea level to elevations of ¢.1300 m. Alfaro’s Water Rat also occurs in marshes, diverse plantations, and forest clearings.
Food and Feeding. No information.
Breeding. No information.
Activity patterns. Alfaro’s Water Rat is reportedly semi-aquatic, but there are no specific data on this topic. Individuals have been trapped on the ground.
Movements, Home range and Social organization. No information.
Status and Conservation. Classified as [Least Concern on The IUCN Red List.
Bibliography. Anderson, Tirira et al. (2016), Goodwin (1946), Handley (1966, 1976), Hanson & Bradley (2008), Hershkovitz (1944), Lord (1999), McCain et al. (2007), McPherson (1985), Musser, Carleton et al. (1998), Pine et al. (2012), Reid (2009), Weksler (2015b).
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.
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Myomorpha |
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Muroidea |
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Sigmodontomys alfari
| Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr 2017 |
Sigmodontomys alfari
| J. A. Allen 1897 |