Linear Measurements of the Bones of <I>Lepus brachyurus brachyurus</I> TEMMINCK, <I>Pentalagus furessi</I> STONE and <I>Oryctolagus cuniculus</I> LINNAEUS (JW-NIBS)

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  • OTSUKA Junichi
    <I>Laboratory of Veterinary Anatomy, Faculty of Agriculture, Kagoshima University</I>
  • TOYOMITSU Yoshikuni
    <I>Laboratory of Veterinary Anatomy, Faculty of Agriculture, Kagoshima University</I>
  • NISHINAKAGAWA Hayao
    <I>Laboratory of Veterinary Anatomy, Faculty of Agriculture, Kagoshima University</I>

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Other Title
  • キュウシュウノウサギ, アマミノクロウサギおよび家兎JW-NIBSの骨の計測値について
  • キュウシュウノウサギ,アマミノクロウサギおよび家兎JW-NIBSの骨の計測値について-1-頭蓋および胴骨〔英文〕
  • キュウシュウノウサギ アマミノクロウサギ オヨビ カト JW-NIBS ノ ホ
  • I. 頭蓋および胴骨
  • I. On the <I>Cranium</I> and <I>Ossa trunci</I>

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Abstract

The Ossa cranii and Ossa trunci in Lepus brachyurus brachyurus, Pentalagus furnessi and Oryctolagus cuniculus (strain: JW-NIBS) were investigated morphologically and osteometrically. The number of coccygeal vertebrae is 10-12 in Lepus, 10-11 in Pentalagus and 15-17 in JW-NIBS. The number of upper cheek teeth of Pentalagus is six on one side. Therefore, Lyon's view that the number of upper cheek teeth of Pentalagus is five may not be applicable to use as one of the discriminative characteristics. The sizes of orbit and tympanic bullae in Pentalagus are remarkably small. The length of neurocranium and the inner breadth of caudal surface of vertebral foramina in cervical, thoracic and lumber vertebrae in JW-NIBS are smaller than those in Lepus and Pentalagus. Among three genera, there are conspicuous differences in shapes of spinous and transverse processus in the lumber vertebrae. The coefficient of variability of the measurements in JW-NIBS is smaller than that in Lepus.

Journal

  • Experimental Animals

    Experimental Animals 29 (4), 441-455, 1980

    Japanese Association for Laboratory Animal Science

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