. Bulletin of the United States Geological and Geographical Survey of the Territories. Geology. 0^ THE CRANIAL AW DENTAL CHARACTERS OF MEPHITmi], WITH DESCRIPTIOxN OF MEPHITIS FRONTATA, N. SP. FOSS.* By Dr. Elliott Coues, U. S. A. DElN^TAL 3-3 ,, 1-1 I. 3=3'^ S^' 3-3 1-1=16 3IepMtis, Spilogale. '2=2 18"=^^- \ MEPHITIS FEOI^TATA, Coues, n. sp. foss. DiAG.—Skull extremely high in tlie middle; the profile of the upper outline very rapidly descending in a nearly straigb-t line from this point to the occiput and muzzle. Greatest depth of skull without jaw little less than half its le


. Bulletin of the United States Geological and Geographical Survey of the Territories. Geology. 0^ THE CRANIAL AW DENTAL CHARACTERS OF MEPHITmi], WITH DESCRIPTIOxN OF MEPHITIS FRONTATA, N. SP. FOSS.* By Dr. Elliott Coues, U. S. A. DElN^TAL 3-3 ,, 1-1 I. 3=3'^ S^' 3-3 1-1=16 3IepMtis, Spilogale. '2=2 18"=^^- \ MEPHITIS FEOI^TATA, Coues, n. sp. foss. DiAG.—Skull extremely high in tlie middle; the profile of the upper outline very rapidly descending in a nearly straigb-t line from this point to the occiput and muzzle. Greatest depth of skull without jaw little less than half its length. Zygoma highly arched; the bone in front com- pressed vertically instead of laterally. Locality of remains.—Bone-caves of Pennsylvania. Fiir. This species is founded on a skull, 'No. 2232 of the Smithsonian Mu- seum, obtained by Professor Baird in the bone-caves of Pennsylvania. The animal was a true Mephitis, as evidenced by the functionally-developed anterior upper premolar and shape of the jaw. The most remarkable peculiarity will be seen at a glance in the accompanying illustration of the skull in profile. Though the frontal region is tumid throughout Mephitijuv, there is seen in the recent species nothing like the protuber- ance and angulation of the vertex of M. frontata. The prominence is also decidedly more posterior; it is something over and above the gen- eral tumidity of the interorbital' region of recent Mepliitis; the * Based on the material in the Museum of the Smithsonian 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 Geological and Geographical Survey of the Territories (U. S. ). Washington : Government Printing Office


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgeology, bookyear1874