. Bulletin. Natural history; Natuurlijke historie. 14 PEABODY MUSEUM OF NATURAL HISTORY. ! Ibil ! fLjigf '^! ' io =-L ^tp. Fig. 6B. Outline of inferior view of Sus scrofa Linnaeus. (For legend, see Fig. 7.) xy2. fossa in Eporeodon is very much larger than in Sus. The ca- nine aheolus is ver}'^ much heavier and more prominent in Sus. The total length of the parietal bone, measured along the sagit- tal plane, is 44 mm,, and in Eporeodon it is 69 mm. The pre- maxillaries are well developed and separate, although in con- tact in the median line. The other species of the Merycoido- dontidae, except
. Bulletin. Natural history; Natuurlijke historie. 14 PEABODY MUSEUM OF NATURAL HISTORY. ! Ibil ! fLjigf '^! ' io =-L ^tp. Fig. 6B. Outline of inferior view of Sus scrofa Linnaeus. (For legend, see Fig. 7.) xy2. fossa in Eporeodon is very much larger than in Sus. The ca- nine aheolus is ver}'^ much heavier and more prominent in Sus. The total length of the parietal bone, measured along the sagit- tal plane, is 44 mm,, and in Eporeodon it is 69 mm. The pre- maxillaries are well developed and separate, although in con- tact in the median line. The other species of the Merycoido- dontidae, except Agriochosrus, where the premaxillaries are re- duced and not in contact in the median line, either have them separate but in contact or coossified at their tips. Inferior view (Figs, 6B and 7). The distance from the prosthion to the maxillary-palatine suture, measured along the sagittal plane, is 130 mm., but in Eporeodon it is only 92 mm. The tooth rows in both are parallel and about the same distance apart. The molars of both increase in size from first to third. The length of the tooth row from C to M^ inclusive is 116 mm., and in Eporeodon it is mm. The pterygoid process of the palatine terminates in a very small knob, and the whole process extends backward and slightly downward, while that of Sus turns abruptly downward, ending in a heavy knob (hamular process). The sphenoid bone is quite prominent and extends laterally for 12 mm. in Sus, thus being dissimilar to Eporeo- don. Tlie basicranial axis is nearly parallel to the plane of the palate, but in the latter genus it is directed upward from the basion and obliquely to the plane of the palate. The bullae are. 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 Peabody Museum of Natural History. New Haven : The Museum
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