. Catalogue of the mammals of western Europe (Europe exclusive of Russia) in the collection of the British Museum. ARVICOLA 727 ears, usually tinged with odii-aceous-bufF or liglit law-umber, though not sutliciently to produce any marked contrast with surrounding parts; chest and belly a varying mixture of ochraceous-butf and the slate-grey under colour, the two becoming more intimately blended on throat and fading to a light drab grey ; feet ranging from hair-brown to ecru-drab, sometimes with a blackish shade ; tail blackish throughout, the underside sprinkled with greyish hairs. SJniJl.—The
. Catalogue of the mammals of western Europe (Europe exclusive of Russia) in the collection of the British Museum. ARVICOLA 727 ears, usually tinged with odii-aceous-bufF or liglit law-umber, though not sutliciently to produce any marked contrast with surrounding parts; chest and belly a varying mixture of ochraceous-butf and the slate-grey under colour, the two becoming more intimately blended on throat and fading to a light drab grey ; feet ranging from hair-brown to ecru-drab, sometimes with a blackish shade ; tail blackish throughout, the underside sprinkled with greyish hairs. SJniJl.—The skull of Arvicola amphihius is large and massive, becoming conspicuously ridged aiid angular in fully adult. FIG. 150. Arvicola ami)hibius. Nat. size. individuals. In general form and proportions it does not differ notably from the skull of Microtus agrcstis, except that the brain- case tends to be shorter and wider, the dorsal pi-ofile is mo*-e evenly convex, without any sudden angular bending down of nasals at interlachrymal region, and the upper incisors project sufficiently forward so that most of their anterior surface is visilile when skull is viewed from above. Brain-case somewhat longer than wide, the well-developed postorbital processes st[uaring its anterior margin and imparting the general outline of a parallelogram ; lateral ridges strongly developed in adults and marking oif a conspicuous flat median surface widest at. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Department of Zoology. [Mammals]; Miller, Gerrit Smith. London : BMNH
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1912
