. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 885 palate is \"ery .sli<»rt<, its leiitftli from incisive foramen t<j the trans- rerse ridge homologous with the normal posterior horder scarcely exceeding breadth at middle of first molar. Hamulars diverging posteriorly, their tips broadly in contact with well developed beak of auditory bulla, the greatest distance between them about equal to length of interpterygoid space. Auditory bullae moder- ately large but not specially inflated, their form more elon
. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 885 palate is \"ery .sli<»rt<, its leiitftli from incisive foramen t<j the trans- rerse ridge homologous with the normal posterior horder scarcely exceeding breadth at middle of first molar. Hamulars diverging posteriorly, their tips broadly in contact with well developed beak of auditory bulla, the greatest distance between them about equal to length of interpterygoid space. Auditory bullae moder- ately large but not specially inflated, their form more elongated transversely to main axis of skull than in members of the other European genera. Zygomata strong, somewhat expanded upward anteriorly (conspicuously more than in Epimys rattus or Mus muscidus). Plate forming outer wall of infraorbital foramen broad, rather sijuarely rounded oft" above. Infraorbital foramen rather widely open below owing to the unusually slight pro- tuberance formed by the root of upper incisor. Mandible with long, rather narrow and straight angular process, the lower border of which is folded squarely inward; coronoid process reduced to a mere recurved spicule scarcely rising above level of wide, nearly horizontal area extending from its base to articular surface. Protuberance over root of lower incisor slight. Teeth.—Upper incisor strongly compressed, rather more so than in Mus musculus, the cutting edge normal. Lower incisor essentially like the upper tooth in cross section, its anterior and posterior diameters nearly equal. Molars suggesting those of 3Iiis musculus both in relative size and in arrangement of tubercles, but the general tendency toward reduction carried less far, so that crown area of m^ is about equal to that of m'^ and nv' combined. First upper molar with crown relatively wider than in 3Ius musculus, but with tl similarly though less displaced backward. Second upper molar with /3 represented by a rather evident antero- external
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmammals, bookyear1912
