. Carnegie Institution of Washington publication. 164 THE PERMO-CARBONIFEROUS RED BEDS OF Posteriorly both foramina open into the subscapular fossa, which has the crescentic outline characteristic of the Amphibia. There is a small and very sharp pit on the outer face of one specimen just beneath the cotylus, but this does not penetrate the bone and is probably adventitious. There are strong articular faces for the coracoid elements, and it is evident that these were suturally connected with the scapula during life. The anterior border is incomplete in all the specimens, but it was apparently r
. Carnegie Institution of Washington publication. 164 THE PERMO-CARBONIFEROUS RED BEDS OF Posteriorly both foramina open into the subscapular fossa, which has the crescentic outline characteristic of the Amphibia. There is a small and very sharp pit on the outer face of one specimen just beneath the cotylus, but this does not penetrate the bone and is probably adventitious. There are strong articular faces for the coracoid elements, and it is evident that these were suturally connected with the scapula during life. The anterior border is incomplete in all the specimens, but it was apparently rounded. The short and broad scapula is but another bit of evidence that Cricotiis was aquatic—if this scapula belongs to that genus. An ulna, radius, tibia, and fibula are here described as possibly belonging to the genus Cricotiis, though the association is based upon little more than the appropriate size. They may very possibly belong to some other form. The itUia (No. 3423, fig. 37, //) has a large and well-developed cavity for the condyle of the humerus confined entirely to the anterior face of the proxi-. FiG. 37.—(a) Outer face, (i) posterior edge, (c) inner face of scapula of right side of Cricotus sp.; ISIo. 3422. X 73. (d) Radius, No. 3424; (e) tibia, No. 3425; (/) proximal face of tibia, (g) fibula, No.^ 3426; (ft) ulna. No. 3423. Lower limb bones provisionally referred to Cricotus (?) sp. X "i- mal end. The inner face of the bone is nearly flat. The whole bone is slightly convex outward, with a suggestion of a sigmoid curve due to the expansion of the outer side of the proximal end and the rather sharp incurvature of the distal end. The distal face shows no division into facets and does not lie in the same plane as the proximal end; a slight twist of the shaft turns the outer edge of the face slightly. The section of the shaft is oval-triangular, with the greatest thickness at the anterior edge. Length mm. The radius (fig. 37, d) is very simple. The sha
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