. Bulletin - United States National Museum. Science. Figure 33.—Parahodomys spelaeus Qidley and Qazin: Right ramus of mandible, type specimen (, no. 12040), lateral and occlusal views. X 2. Cumberland Cave Pleistocene, Maryland. Symphysis relatively deep. Lower branch of masseteric ridge very prominent and sharply defined. Condyle relatively large and de- pressed so that condylar bar is directed backward to a much greater extent than in Hodomys and the notch between it and the coronoid process is much more widely open. Specific characters.—Size about that of Hodomys alleni. Incisors rel
. Bulletin - United States National Museum. Science. Figure 33.—Parahodomys spelaeus Qidley and Qazin: Right ramus of mandible, type specimen (, no. 12040), lateral and occlusal views. X 2. Cumberland Cave Pleistocene, Maryland. Symphysis relatively deep. Lower branch of masseteric ridge very prominent and sharply defined. Condyle relatively large and de- pressed so that condylar bar is directed backward to a much greater extent than in Hodomys and the notch between it and the coronoid process is much more widely open. Specific characters.—Size about that of Hodomys alleni. Incisors relatively robust, causing a more prominent swelling of the lower. Figure Z^.—PaTahodomys spelaeus Gidley and Gazin: Right ramus of mandible ( no. 12037), lateral and occlusal views. X 2. Cumberland Cave Pleistocene, Maryland. border of the ramus than in H. alleni. Diastema between incisor and cheek teeth long. Posteroexternal reentrant folds in all molars shallow and pocketed at base, wearing at occlusal surface in wide open U-shaped pattern from summit to base of crown. Postero- internal reentrant fold well developed in M3, extending somewhat below middle of crown but disappearing in old age. The material referred to this form includes seven lower jaws in addition to the type, representing individuals in several stages of maturity. Comparison.—The genus here described is known only from lower jaws but fortunately these reveal diagnostic characters that clearly distinguish it from the nearest related living genera, Neotoma and. 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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