Crocidura abscondita Esselstyn, Achmadi &amp; Maharadatunkamsi 2014
Creators: name: Mittermeier, Russell A.
name: Wilson, Don E.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Soricidae
Crocidura
Crocidura abscondita

description: 245. Javan Long-tailed White-toothed Shrew <i>Crocidura abscondita</i> <b>French:</b> Crocidure cachée / <b>German:</b> Java-Langschwanz-Weif3zahnspitzmaus / <b>Spanish:</b> Musarana de cola larga de Java <b>Other common names:</b> Javan Long-tailed Shrew, Mysterious White-toothed Shrew <b>Taxonomy.</b> Crocidura absconditus [sic] Esselstyn, Achmadi &amp; Maharadatunkamsi, 2014, “ Cibodas, Mt. Gede, WestJava, Indonesia (6-74818°S, 106-99388°E, 1,611 m elevation).” Masculine epithet absconditus changed for gender agreement. A long-tailed species similar in morphology to C. paradoxura was reported from Java (Mount Gede-Pangrango) by P. D. Jenkins in 1982 and by M. Ruedi in 1995, under the name C. cf. paradoxura. In their 2013 study J. A. Esselstyn and others incorporated a long-tailed specimen, which fitted the potentially undescribed species of Ruedi and Jenkins. This long-tailed shrew was later confirmed by morphological and genetic studies to be a different species. Phylogenetically, C. abscondita is closely related to C. paradoxura and other species from the Sunda Shelf, Sulawesi, and the Philippines. Monotypic. <b>Distribution.</b> Known only from Mount Gede-Pangrango area of West Java. <b>Descriptive notes.</b> Head-body ¢.73-5 mm, tail 88-3 mm (mean, n = 4), hindfoot 16 mm (n= 1); weight 7-5 g (mean, n = 4). Condylo-incisive length: 19. mm (mean). The Javan Long-tailed White-toothed Shrew is a medium-sized, long-tailed shrew with pale pelage and skin. It is readily distinguished from all otherJavan Crocidura by its body size and tail length. It has a more gracile body than any otherJavan shrew but is similar to the Sumatran Long-tailed White-toothed Shrew (C. paradoxura), which has similar morphology, but the Javan Long-tailed White-toothed Shrew differs in body size,tail length and color, and orientation of the rostrum. It is smaller than the Thick-tailed White-toothed Shrew (C. brunnea) and the Oriental White-toothed Shrew (C. orientalis), slightly smaller than the Sumatran Long-tailed White-toothed Shrew, and substantially larger than the Javan White-toothed Shrew (C. maxi) and the Sunda White-toothed Shrew (C. monticola). The only other long-tailed shrew from the region, besides the Sumatran Long-tailed Whitetoothed Shrew,is the Elongated White-toothed Shrew (C. elongata) from Sulawesi, which is a member of a distantly related clade to the Javan Long-tailed White-toothed Shrew. Pelage and feet are similar in color (gray-brown to white) to the Sumatran Long-tailed White-toothed Shrew, but paler than those of otherJavan Crocidura (dark brown to black and charcoal pelage,tails, and feet). Fur is medium gray at the bases with brown tips on dorsum and gray tips on the venter. Pinnae are large and pale. Forefeet are dorsally white and hindfeet pale gray. Tail bears sparse bristle hairs along the proximal section, and dense, dark brown hairs cover entire length oftail, forming a very small pencil at the terminus. Dorsal side oftail is slightly darker than ventral side. Skull is long and slender. Braincase is rounded, with weak lambdoidal ridges. Rostrum is gracile. <b>Habitat.</b> Tropical montane forest at elevation of ¢.1600 m. On a survey on Mount Gede, at 1600 m, the Javan Long-tailed White-toothed Shrew was captured together with two small shrews—the Javan Ghost White-toothed Shrew (C. umbra) and the Sunda Whitetoothed Shrew—and one large shrew—the Oriental White-toothed Shrew—within the reach of one trapline (c.100 m long). <b>Food and Feeding.</b> No information. <b>Breeding.</b> No information. <b>Activity patterns.</b> According to morphology (long tail, slender body), the Javan Longtailed White-toothed Shrew would be a scansorial species, climbing on low trees and shrubs. It is probably nocturnal. <b>Movements, Home range and Social organization.</b> No information. <b>Status and Conservation.</b> Not assessed on The IUCN Red List. Mount Gedeis less than 60 km from one the world’s most populous megacities. The species has a restricted range and is threatened by habitat loss. Recent surveys on other mountains of West and Central Java failed to capture this species. Extensive field surveys are needed to work out a detailed assessment of threats. <b>Bibliography.</b> Demos, Achmadi, Giarla et al. (2016), Demos, Achmadi, Handika et al. (2017), Demos, Kerbis Peterhans et al. (2014), Esselstyn, Achmadi &amp; Maharadatunkamsi (2014), Esselstyn, Maharadatunkamsi et al. (2013), Jenkins (1982), Kitchener et al. (1994), Ruedi (1995).
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 482, DOI: 10.5281/zenodo.6870843