A Key to the Skulls of North American Mammals by THIES MONTE L PDF

By THIES MONTE L

ISBN-10: 1465291717

ISBN-13: 9781465291714

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Extra resources for A Key to the Skulls of North American Mammals

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41 41. -Coronoid process of mandible weak or only moderately large ............................................................................................................................. 42 -Coronoid process large, broad, and strongly recurved ................................................ 46 42. -Supraorbital ridges present; palate ending posterior to plane of M 3 ; palatal pits present; coronoid process moderately large; infraorbital canal emarginate dorsally; molars with cusps of outer and inner rows opposite ............................................................................................

71. Scalopus Greatest length of skull 36mm Fig. 72. Neurotrichus Greatest length of skull 36mm f \ '. ' Fig. 73. Condylura Greatest length of skull 35mm / .. Fig. 74. Parascalops Greatest length of skull 32mm 46 teeth (Fig. 7 6) ................................................................................................................ 8 7. -Upper teeth 8 on each side, 3 unicuspids above, total of 28 teeth; teeth white except for enlarged anterior tooth and anterointemal cusp of first large cheektooth ..........................

Notiosorex (Fig. 77) -Upper teeth 9 on each side, 4 unicuspids above, total of 30 teeth; all teeth except last unicuspid pigmented .......................... Cryptotis (Fig. 78) 8. -Skull robust and strong, bones heavy; a distinct sagittal crest present in mature specimens; first two unicuspids of identical size, the third and fourth identical and much smaller than the first two, the fifth minute and nearly or quite obscured from lateral view by a projection of P 4 •••••••••••••••••••••••• Blarina (Fig.

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A Key to the Skulls of North American Mammals by THIES MONTE L


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