. Bulletin - United States National Museum. Science. RODENTS OF LIBYA 195. Figure 42.—-Distribution of Spalax ehrenbergi aegyptiacus. , , ; length of diastema , , 15; basilar length of skull 34, , ; greatest breadth of rostrum , 8, Diagnosis. Most distinctive feature is the featureless, cylindrical body without a visible tail, and superficially appearing to lack eyes, ears and nostrils; rostrum furnished with a hardened and slightly enlarged cartilaginous plate beneath the skin and near the origin of the vibrissae, which presumably aids in pushing and moving
. Bulletin - United States National Museum. Science. RODENTS OF LIBYA 195. Figure 42.—-Distribution of Spalax ehrenbergi aegyptiacus. , , ; length of diastema , , 15; basilar length of skull 34, , ; greatest breadth of rostrum , 8, Diagnosis. Most distinctive feature is the featureless, cylindrical body without a visible tail, and superficially appearing to lack eyes, ears and nostrils; rostrum furnished with a hardened and slightly enlarged cartilaginous plate beneath the skin and near the origin of the vibrissae, which presumably aids in pushing and moving dirt in the underground tunnels; vibrissae correspondingly small and fine in texture; pelage short, dense, and silky and of almost uniform color dorsally, varying in different specimens, however, among shades of Ochraceous-Tawny, Sayal Brown, and Buckthorn Brown, and ven- trally somewhat darker owing to less suffusion of these colors. In older specimens, pelage becoming worn and somewhat darker owing to greater exposure of the Plumbeous underfur; rostrum, in young specimens, light gray in color, but, in old specimens, rostral, auricular, and entire facial areas becoming a much darker gray; eyes not visible externally, but present as small rudimentary structures in the usual position in the orbit; pinnae of the ears, on close examination, present as inconspicuous cartilaginous rings which are obscured by the dense. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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