Skull and Dental Characters, and Skull Measurements of Microtus kikuchii Kuroda, 1920 from Taiwan

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URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/1621
Title
Skull and Dental Characters, and Skull Measurements of Microtus kikuchii Kuroda, 1920 from Taiwan
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Description

Skull character and dental pattern were described and 16 skull measurements were given in 14 specimens of Microtus kikuchii. The skull was rather large but less ridgy and angular. The number of re-entrant folds varied greatly at both sides in M3: three inner and outer folds are most frequent among the specimens examined. The number of closed dental spaces of M3 varied from four to six, and five ones were most common. The antero-external concavity of the anterior loop of M1 varied from indistinct to distinct type. A prominant first outer fold of M3 is observed in all specimens studied, and it suggests that the fold is a characteristic of the vole. The re-entrant fold of the second loop of M3 did not appear consistently Significant regression coefficients of seven skull measurements on zygomatic width (ZW) were shown except for interorbital width. By a regression line of condylobasal length (CBL) on ZW, the 95% confidence interval for CBL of the holotype specimen, whose basal part of braincase is damaged, was estimated as 30.97-31.99 mm, which is longest among the specimens examined and reported.

Author
著者 Kaneko Yukibumi
著者(ヨミ) カネコ ユキブミ
著者(別表記) 金子 之史
Publication Title
Journal of the Mammalogical Society of Japan
Volume
12
Issue
1-2
Start Page
31
End Page
39
Publisher
Mammalogical Society of Japan
Published Date
198709
ISSN
0914-1855
NCID
AA1092271X
Resource Type
Journal Article
Language
eng
Rights
copyright(C) 1987 日本哺乳類学会
Text Version
publisher
Set
香川大学
Copyright (C) 2009 Kagawa University All rights reserved.