Rattus enganus (Miller, 1906)

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Muridae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 536-884 : 836-837

publication ID	https://doi.org/ 10.5281/zenodo.6887260
DOI	https://doi.org/10.5281/zenodo.6868947
persistent identifier	https://treatment.plazi.org/id/1E30E275-34C1-FF7F-E49D-24CD74BE8289
treatment provided by	Carolina
scientific name	Rattus enganus
status

Treatment

679. View Plate 54: Muridae

Enggano Island Rat

Rattus enganus View in CoL

French: Rat d'Enggano / German: Enggano-Ratte / Spanish: Rata de Enggano

Other common names: Enggano Rat

Taxonomy. Mus enganus G. S. Miller, 1906 ,

“Engano Island [= Pulau Enggano],”

Indonesia

Placement of enganus in Rattus is unre-solved, but itis considered morphologically primitive for the genus. It is morphologi-cally similar to R.macleari and R. xanthurus and probably related to the two recently extinct species from Christmas Islands, R.macleari and R. nativitatis . There are no genetic studies involving R. enganus . Monotypic.

Distribution. Enggano I, off SW Sumatra. View Figure

Descriptive notes. Head-body 228 mm, tail 257 mm, ear 19 mm, hindfoot 46 mm (from type specimen, a male). No specific data are available for body weight. The Enggano Island Rat is an endemic and very distinct species of Rattus . Pelage is soft (almost silky), long, and covered in short grooved black spines. Dorsum is dull, pale ocherous buff, suffused with smoke gray on sides and cheeks and blending into ventral pelage rather than being sharply demarcated. Venter is pale smoke gray, with darker gray based fur. Feet are scantily covered in fine light gray hairs. Vibrissae are long and soft. Tail is ¢.113% of head-body length, unicolored dark brown, and covered in small hairs. Skull has long and wide rostrum.

Habitat. Probably forests habitats.

Food and Feeding. No information.

Breeding. No information.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Data Deficient on The IUCN Red List. The Enggano Island Rat is only known from a single specimen collected more than 100 years ago. It might be extinct; a survey in the 1980s did not record it. It is threatened by habitat loss and probably by competition with the Roof Rat ( R. rattus ).

Bibliography. Gerrie & Kennerley (2016a), Miller (1906), Musser & Carleton (2005).

Figures

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Aceh Rat (Rattus blangorum), 679. Enggano Island Rat (Rattus enganus), 680. Hoogerwert’s Sumatran Rat (Rattus hoogerwerfi), 682. Mentawai Archipelago Rat (Rattus lugens), 683. Gag Island Rat (Rattus nikenu), 684. Simalur Archipelago Rat (Rattus simalurensis), 685. Malaysian Field Rat (Rattus tiomanicus), 686. South-western Xanthurus Rat (Rattus bontanus), 687. Hoffmann’s Sulawesi Rat (Rattus hoffmanni), 688. Koopman' ’ s Peleng Island Rat (Rattus koopmani), 689. Marmoset Xanthurus Rat (Rattus marmosurus), 690. Lampobatang Sulawesi Rat (Rattus mollicomulus)