The First Record of Anourosorex (Insectivora, Soricidae) from Western Myanmar, with Special Reference to Identification and Karyological Characters

摘要

We collected six mole shrews in Tiddim Town of Chin State, western Myanmar. They were captured in a human-modified artificial environment, although mole shrews usually inhabit forests. External and skull measurements indicated that the species was Anourosorex assamensis, previously known only as an endemic species of the Assam region of India. This is the first record of this species from Myanmar. Karyological examination revealed the species was diploid with a fundamental autosomal number of 2n=50 and NFa=96. These numbers correspond to the Taiwanese species A. yamashinai, but several differences were apparent in chromosomal morphology and the position of secondary chromosomal constrictions. The karyological information suggests A. assamensis is a full species separate from A. squamipes in China.