A discussion of the dental formula of Desmana moschata in relation to the premaxillary suture

• Kawada Shin-ichiro

  Laboratory of Animal Management and Resources, Graduate School of Bio-Agricultural Sciences, Nagoya University

• Koyasu Kazuhiro

  Research Institute of Advanced Dental Sciences, School of Dentistry, Aichi-Gakuin University The second department of Anatomy, School of Dentistry, Aichi-Gakuin University

• Zholnerovskaya Elena I.

  Institute of Animal Systematics and Ecology, Siberian Division of the Russian Academy of Sciences

• Oda Sen-ichi

  Laboratory of Animal Management and Resources, Graduate School of Bio-Agricultural Sciences, Nagoya University

書誌事項

タイトル別名

• A discussion of the dental formula of esmana moschata in relation to the premaxillary suture.
• discussion of the dental formula of Desmana moschata in relation to the premaxillary suture

抄録

The upper dental formula of the Russian desman Desmana moschata (Linnaeus, 1758) (Insectivora, Talpidae) is considered based on the position of the premaxillary suture (sutura incisiva). From the lateral aspect, this suture extends to the second tooth in the tooth row. From the ventral aspect, the suture connects the common alveolus fossa of the second and third teeth in front of the second tooth on the labial edge and behind it on the lingual edge; consequently, the third tooth in the upper row appears to be derived from the maxilla. Therefore, the upper tooth formula of D. moschata may differ from the traditional fundamental dental formula of eutherian mammals (I3, C1, P4, M3), and consist of two incisors, one canine, five premolars, and three molars (I2, C1, P5, M3). This hypothetical view, however, assumes two changes, a tooth deletion in the incisor row and an addition in the premolar row. The significance of the premaxillary suture and possible pitfalls in using it to define dental formulae are discussed.

収録刊行物

• Mammal Study

  Mammal Study 27 (2), 107-111, 2002

  日本哺乳類学会

キーワード

• dental formula
• desman
• premaxillary suture

詳細情報

• CRID: 1390001204670723584
• NII論文ID: 10010815047
• NII書誌ID: AA11185060
• DOI: 10.3106/mammalstudy.27.107
• ISSN: 13486160
• ISSN: 13434152
• NDL書誌ID: 6396600
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6396600
• Web Site: https://www.jstage.jst.go.jp/article/mammalstudy/27/2/27_2_107/_pdf/-char/en
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可