Macrotarsomys ingens, Peter, 1959

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Nesomyidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 156-203 : 189-190

publication ID

https://doi.org/ 10.5281/zenodo.6600357

DOI

https://doi.org/10.5281/zenodo.6600564

persistent identifier

https://treatment.plazi.org/id/03993828-FFF4-0F51-FAF8-F80ECF8CFD77

treatment provided by

Felipe

scientific name

Macrotarsomys ingens
status

 

19. View Plate 8: Nesomyidae

Ankarafantsika Big-footed Mouse

Macrotarsomys ingens View in CoL

French: Kelibotra dAnkarafantsika / German: Ankarafantsika-MadagaskarGroRRfu 3maus / Spanish: Raton de pies grandes de Ankarafantsika

Other common names: Greater Big-footed Mouse, Long-tailed Big-footed Mouse

Taxonomy. Macrotarsomys ingens Peter, 1959 View in CoL ,

“ 200 metres apres le village d’Ampijoroa ,” Madagascar .

The specimen named the holotype of M. ingens was found injured along a main road and probably had fallen prey to a raptor. Monotypic.

Distribution. Endemic to NW Madagascar (Ankarafantsika Forest). View Figure

Descriptive notes. Head-body 112-150 mm, tail 183-240 mm; weight 42-74 g.

The Ankarafantsika Big-footed Mouse is similar to Bastard’s Big-footed Mouse (M. bastardy) buts larger, with relatively smaller ears. Dorsal pelage is quite soft, fine, and light grayish brown. Flanks have distinct line separating back, and venter is uniform white. Eyes are proportionately large, and ears are distinctly elongated. Tail is remarkably long, brown dorsally and light gray ventrally; tip is trimmed with tuft of brown hairs. Hindlegs are elongated.

Habitat. Dry deciduous forest with sandy soils at elevations of 100-400 m.

Food and Feeding. The Ankarafantsika Big-footed Mouse is presumed to feed on seeds and fruits, as does Bastard’s Big-footed Mouse. The two species occur sympatrically in Ankarafantsika.

Breeding. Maximum litter size of the Ankarafantsika Big-footed Mouse is two young, and females have two sets of mammae.

Activity patterns. The Ankarafantsika Big-footed Mouse is nocturnal and scansorial, being able to climb on small tree branches. It occupies shallow burrows in sandy soil, with inconspicuous openings that are backfilled upon entering. These plugs can be obvious in early morning when soilis still slightly moist.

Movements, Home range and Social organization. The Ankarafantsika Big-footed Mouse is generally seen foraging alone; occasionally, two individuals have been observed in the same or nearby trees. When scared by a potential predator, the Ankarafantsika Big-footed Mouse remains motionless on the ground or on thin tree branches. It moves kangaroo-like, with bounding action on its proportionately long hindfeet and using tail as a stabilizer. It does not enter torpor or hibernate.

Status and Conservation. Classified as Endangered on The IUCN Red List. The Ankarafantsika Big-footed Mouse is dry deciduous forest-dwelling and is known from a very restricted area in north-western Madagascar. Its extent of occurrence is only ¢.250 km?, most of which is in Ankarafantsika National Park. Given continued declines in natural forests ofthis region and predation by feral dogs, cats, and Fosas (Cryptoprocta ferox) its mediumand long-term future is at risk.

Bibliography. Carleton & Goodman (2003c), Carleton & Schmidt (1990), Dollar et al. (2007), Goodman, Ganzhorn & Rakotondravony (2003), Goodman, Soarimalala et al. (2013), Lobban etal. (2014), Petter (1959a), Petter & Randrianasolo (1961), Randrianjafy (2003), Soarimalala & Goodman (2011).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Nesomyidae

Genus

Macrotarsomys

Loc

Macrotarsomys ingens

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr 2017
2017
Loc

Macrotarsomys ingens

Peter 1959
1959
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF