. Catalogue of the mammals of western Europe (Europe exclusive of Russia) in the collection of the British Museum. 68 INSECTIVORA and more abruptly turned outward. Foramen ovale appearing rather conspicuously in region between hamular and postglenoid process. Rudimentary zygomatic process of maxillary well developed, essentially as in Sorex araneus. Teeth.—Though in general not strikingly different from those of Sorex araneus the teeth show a tendency towards greater elevation of the cusps as well as a more pronounced hooking forward of the anterior upper incisor, peculiarities which impart to
. Catalogue of the mammals of western Europe (Europe exclusive of Russia) in the collection of the British Museum. 68 INSECTIVORA and more abruptly turned outward. Foramen ovale appearing rather conspicuously in region between hamular and postglenoid process. Rudimentary zygomatic process of maxillary well developed, essentially as in Sorex araneus. Teeth.—Though in general not strikingly different from those of Sorex araneus the teeth show a tendency towards greater elevation of the cusps as well as a more pronounced hooking forward of the anterior upper incisor, peculiarities which impart to the entire dentition, though j^articularly to the teeth lying in front of the large premolars, an unmistakably prehensive character. Anterior upper incisor with main hook more projecting than in Sorex araneus; posterior talon low though rather long, its outline when viewed from the side somewhat triangular, its height less than half that of main cusp and much less than that of first unicuspid. Lower incisor more slender than that of Sorex araneus, its cutting edge with only a single low, ill-defined lobe near middle. Upper unicuspids large and strong, their crowns when viewed from below decidedly longer than wide, truncate posteriorly, narrowed an- terioi'ly and terminating in a slight though evident point. Jn lateral view the cusps appear to be more slender and set further forward than in Sorex araneus, and the posterior part of crown is more produced backward, the cingulum often rising to a distinct postero- internal angle or rudimentary cusp, particularly in first tooth. Spaces Neomus fodiens. Anterior teeth t , ,. n . , , in profile, x 5. between tips ot unicuspids greater than in the European species of Sorex. Each cusp is nearly terete, but with a small postero- internal concavity continuous with the concave crushing area which occupies posterointernal fourth of crown. The con- cave area of cusja and crown is bounded externally by a low but distinct ridge extending to
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1912
