Jaculidae sentence example

jaculidae
  • In the Jaculidae the metatarsals are greatly elongated, and in some of the species, as jerboas, they are welded together.
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  • The Spalacidae are burrowing types, allied apparently to the ancestral Jaculidae, and characterized by the second and third molars being equal in size, the presence of enamel-folds in all these teeth, and the superiority in size of the claws of the second, third and fourth front toes over the other two.
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  • The jerboa group (Dipodidae, or Jaculidae) is also mainly an Old World type, although its aberrant representatives the jumping-mice (Zapus) have effected an entrance into Arctic North America.
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