Crocidura negrina Rabor 1952
Creators: name: Mittermeier, Russell A.
name: Wilson, Don E.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Soricidae
Crocidura
Crocidura negrina

description: 241. Negros White-toothed Shrew <i>Crocidura negrina</i> <b>French:</b> Crocidure de Negros / <b>German:</b> Negros-Weizahnspitzmaus / <b>Spanish:</b> Musarana de Negros <b>Other common names:</b> Negros Shrew <b>Taxonomy.</b> Crocidura negrina Rabor, 1952, Dayongan, 1300 m, Cuernos de Negros Mountains, Negros Island, Phillippines. In 1992 G. B. Corbet and J. E. Hill listed this species under C. mindorus, but in 1993 and 2005 R. Hutterer treated it as distinct species. Phylogenetic studies by |. A. Esselstyn and others in 2009 and 2010 recovered this species as sister taxon to C. panayensis and C. ninoyi, and more basal to C. mindorus within a clade of central Philippine Crocidura. Monisgie <b>Distribution.</b> Known only by six specimens from Cuernos de Negros volcanoes, S Negros I, Philippines. <b>Descriptive notes.</b> Head-body 88 mm (type specimen), tail 63-83 mm, hindfoot 16-18 mm; weight 11-15-5 g. Condylo-incisive length: 22-23 mm. The Negros Whitetoothed Shrew is a medium-sized shrew, closely resembling the Asian House Shrew (Suncus murinus) in external appearance, but much smaller with relatively longer and more slender tail, and much darker pelage than the Mindoro White-toothed Shrew (C. mindorus). Upperparts are blackish brown, tinged with gray. Underside is dark brown with numerous whitish patches that are particularly visible on the belly. Compared to the Mindoro White-toothed Shrew, the Negros White-toothed Shrew has a less globose braincase, narrower interorbital region, slightly broader upper molars, and higher coronoid process. <b>Habitat.</b> Known only from primary or slightly disturbed lowland and montane forest at elevations of 500-1450 m. <b>Food and Feeding.</b> No information. <b>Breeding.</b> No information. <b>Activity patterns.</b> Negros White-toothed Shrews are terrestrial and probably nocturnal. <b>Movements, Home range and Social organization.</b> No information. <b>Status and Conservation.</b> Classified as Endangered on The IUCN Red List because its extent of known occurrence is less than 5000 km?2, all individuals are in fewer than five locations, and there is a continuing decline in the extent and quality of its habitat. The species might be found in northern Negros as well, but surveys on north have not used the appropriate techniques for catching these shrews. A single specimen was collected in northern Negros in 2009. Even if it occurs more widely, it is thought have an extent of occurrence of less than 5000 km?. Surveys with the right capture techniques should be undertaken for this species on neighboring Panay and Cebu. The Negros Whitetoothed Shrew is not currently known from any protected area, and conservation of the small amount of remaining habitat is urgently needed. Research on its distribution, population, habitat and ecology is also essential. <b>Bibliography.</b> Boitani et al. (2006), Corbet &amp; Hill (1992), Esselstyn &amp; Brown (2009), Esselstyn &amp; Oliveros (2010), Esselstyn, Maher &amp; Brown (2011), Esselstyn, Timm &amp; Brown (2009), Heaney &amp; Ruedi (1994), Heaney &amp; Tabaranza (2008), Heaney &amp; Utzurrum (1991), Heaney, Balete et al. (1998), Heaney, Dolar et al. (2010), Hutterer (1993, 2005b), Rabor (1952, 1977).
description: Published as part of <i>Russell A. Mittermeier &amp; Don E. Wilson, 2018, Soricidae, pp. 332-551 in Handbook of the Mammals of the World – Volume 8 Insectivores, Sloths and Colugos, Barcelona :Lynx Edicions</i> on page 480, DOI: 10.5281/zenodo.6870843