Geoxus annectens (Patterson, 1992)

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 204-535 : 509

683.

Large Long-clawed Mouse

Geoxus annectens

French: Géoxus de Patterson / German: GrofRe Langkrallenmaus / Spanish: Ratén topo grande

Other common names: Pearson's Long-clawed Akodont, Pearson's Longclawed Mouse

Taxonomy. Pearsonomys annectens Patterson, 1992 , near Mehuin, Region de Los Lagos, Valdivia, Chile.

Geoxus annectens is the type species of the genus Pearsonomys named by B. D. Patterson in 1992, now considered ajunior synonym of Geoxus . Monotypic.

Distribution. Coastal Range, C Chile.

Descriptive notes. Head-body 108-126 mm, tail 71-82 mm, ear 17-20 mm, hindfoot 25-30 mm; weight 42-61 g. Males are slightly larger than females in body size. The Large Long-clawed Mouse is the largest known species of Geoxus , characterized by its comparatively large ears, long tail, and long hindfoot. Fur is hispid and coarse. Overall, color varies from entirely blackish or dark brown to blackish on dorsum and buffy on venter. Tail is densely furred and uniformly brown. Chromosomal complement is 2n = 56, FN = 62.

Habitat. Southern beech ( Nothofagus spp. , Nothofagaeae) forest remnants with mountain bamboo ( Chusquea spp. , Poaceae ) and Valdivian temperate rainforest remnants and highly fragmented and continuous Valdivian forests, including forestry plantations conformed by exotic trees, with relatively mature and closed vegetation and deep soils covered with leaflitter.

Food and Feeding. No information.

Breeding. Large LLong-clawed Mice with reproductive signals were recorded in spring and summer.

Activity patterns. No information.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Vulnerable on The IUCN Red List (as Pearsonomys annectens). The Large Long-clawed Mouse occurs in less than 20,000 km?, it is known from fewer than ten locations, and there is continuing decline in extent and quality of its habitat.

Bibliography. Chebez et al. (2014), D’Elia (2015), D'Elia, Ojeda et al. (2006), Figueroa et al. (2012), Patterson (1992a), Patterson & D’Elia (2008b), Teta (2013), Teta & D’Elia (2017), Teta, Canén et al. (2017).

Figures

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[MISSING], 648. [MISSING], 649. [MISSING], 650. [MISSING], 651. [MISSING], 652. [MISSING], 653. [MISSING], 654. [MISSING], 655. [MISSING], 656. [MISSING], 657. [MISSING], 658. [MISSING], 659. [MISSING], 660. [MISSING], 661. [MISSING], 662. [MISSING], 663. [MISSING], 664. [MISSING], 666. Western Puna Mouse (Punomys lemminus), 667. Koford’s Puna Mouse (Punomys kofordi), 668. Andean Mouse (Andinomys edax), 669. Andean Swamp Rat (Neotomys ebriosus), 670. Salta Chinchilla Rat (Euneomys fossor), 671. Biting Chinchilla Rat (Euneomys mordax), 672. Peterson’s Chinchilla Rat (Funeomys petersoni), 673. Patagonian Chinchilla Rat (Funeomys chinchilloides), 674. Chilean Climbing Mouse (Irenomys tarsalis), 675. Cerrado Red-nosed Mouse (Wiedomys cerradensis), 676. Common Red-nosed Mouse (Wiedomys pyrrhorinos), 677. Rio de Janeiro Arboreal Rat (Phaenomys ferrugineus), 678. Red-nosed Tree Mouse (Wilfredomys oenax), 679. Andean Long-clawed Mouse (Paynomys macronyx), 680. Chilean Long-clawed Mouse (Chelemys megalonyx), 681. Edwards’s Long-clawed Mouse (Notiomys edwards), 682. Valdivian Long-clawed Mouse (Geoxus valdivianus), 683. Large Long-clawed Mouse (Geoxus annectens), 684. Guafo Island Long-clawed Mouse (Geoxus lafkenche), 685. Michaelsen’s Long-clawed Mouse (Geoxus michaelseni), 686. LLong-haired Soft-haired Mouse (Abrothrix longipilis), 687. Hairy Soft-haired Mouse (Abrothrix hirta), 689. Sanborn’s Soft-haired Mouse (Abrothrix sanborni), 690. Woolly Soft-haired Mouse (Abrothrix lanosa), 691. Ornate Soft-haired Mouse (Abrothrix jelskii), 692. Gray Soft-haired Mouse (Abrothrix illutea), 694. Olive Soft-haired Mouse (Abrothrix olivacea)

Distribution. Coastal Range, C Chile.