. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 240 CHIROPTERA. Skull.—The skull combines the short, smooth brain-case of Eptesicus nilssonii with the broad, flat rostrum of E. serotinus, but diflfers conspicuously in aspect from both in the very deep, Nyctaliis-like narial and palatal emarginations. Dorsal profile essentially straight from nares to rounded, not overhanging lambda. Sagittal crest obsolete ; lambdoid crest low but evident. Depth of brain-case at middle decidedly more than half mastoid breadth ; floor wi
. Catalogue of the mammals of Western Europe (Europe exclusive of Russia) in the collection of the British museum. Mammals. 240 CHIROPTERA. Skull.—The skull combines the short, smooth brain-case of Eptesicus nilssonii with the broad, flat rostrum of E. serotinus, but diflfers conspicuously in aspect from both in the very deep, Nyctaliis-like narial and palatal emarginations. Dorsal profile essentially straight from nares to rounded, not overhanging lambda. Sagittal crest obsolete ; lambdoid crest low but evident. Depth of brain-case at middle decidedly more than half mastoid breadth ; floor with wide conspicuous slit between cochlea and basioccipital; a flattened pit-like depression at front of each slit; auditory bullse moderately large, their trans- verse diameter about equal to space between them. Interorbital region broadly hour-glass shaped, flattened above ; edge of orbit from lachrymal region nearly to most constricted portion distinctly and irregularly swollen. Dorsal surface of rostrum flattened, with broad, shallow lateral depressions; narial emargina- tion broadly triangular, its apex extending back to level of lachrymal region; rostral depth at front of orbit equal to distance from orbit xr , ,,v „\JJ,..,-.,„o to front of inner incisor ; anteorbital foramen Vesperttlio murinus. \ Nat. size. moderately large, over point of contact between large premolar and first molar ; lachrymal fora- men directly behind it on inner rim of orbit. Palate broad and short, noticeably concave both laterally and longitudinally, the anterior emargination large, much wider than deep, but extend- ing back to level of middle of premolar; posterior extension of palate parallel sided, its length slightly greater than width behind molars ; hamulars slightly bent inward; median sj^ine well developed. Mandible robust, much deeper at symphysis than behind tooth-row, the coronoid process low (height less than least width of posterior section) with gradually sloping upper border;
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmammals, bookyear1912
