NEW RECORDS OF TWO RARELY ENCOUNTERED, ENDEMIC RATS (RODENTIA: MURIDAE: MURINAE) FROM GUNUNG GANDANGDEWATA, WEST SULAWESI PROVINCE

Anang Setiawan Achmadi (Museum Zoologicum Bogoriense, Research Center for Biology, Indonesian Institute of Sciences, Gd. Widyasatwaloka, Jl. Raya Jakarta Bogor Km 46 – Cibinong, West Java,)
Kevin C. Rowe (2Sciences Department, Museum Victoria, Melbourne)
Jacob A. Esselstyn (3Museum of Natural Science and Department of Biological Sciences, 119 Foster Hall, Louisiana State University, Baton Rouge, LA 70803)

TREUBIA
Vol 41 (2014): Vol. 41, December 2014

We collected specimens of Sommer’s Sulawesi shrew-rat, Sommeromys macrorhinos, at three sites (1600, 2200, and 2600 m) and the Sulawesi small-bodied shrew-rat, Crunomys celebensis, at one site (1600 m) on Gunung Gandangdewata in the western block  of the central core of Sulawesi during November 2011 and May 2012. Prior to 2011, S. macrorhinos was known only from the holotype, which was taken on 2 August 1973 at 2400 m near the summit of Gunung Tokala (upper montane forest). Previously, C. celebensis was known only from tropical lowland evergreen rain forest in the Danau Lindu valley and nearby upper drainage of the Sungai Miu in the northern portion of the westcentral mountain block in Sulawesi’s central core. The new specimens of S. macrorhinos and C. celebensis extend their known range of habitats to include the transition between lowland and montane forest. Because the original description of S. macrorhinos was based on a single specimen, we describe some external morphological features and provide measurements of new specimens as a supplement to the original description.Key words: Crunomys celebensis, morphology, shrew-rat, Sommeromys macrorhinos