Kansas University quarterly . mina, the exterior orifices of which arejust within the anterior margin of the scapular face of the glenoid sur-face. The proximal surface of the scapula is concave; that of thecoracoid, if the bone is limited by the ridge spoken of, is for the mostpart gently convex and lies in a more mesial plane. In comparison with the same bones of Dimetrodon, as figured anddescribed by Baur and Case (Trans. Amer. Phil. Soc, N. S., xx, p. 46,pi. iii, fig. 30), the bone is much less concave along its lower border,,more expanded proximally, the coracoid evidently smaller and not
Kansas University quarterly . mina, the exterior orifices of which arejust within the anterior margin of the scapular face of the glenoid sur-face. The proximal surface of the scapula is concave; that of thecoracoid, if the bone is limited by the ridge spoken of, is for the mostpart gently convex and lies in a more mesial plane. In comparison with the same bones of Dimetrodon, as figured anddescribed by Baur and Case (Trans. Amer. Phil. Soc, N. S., xx, p. 46,pi. iii, fig. 30), the bone is much less concave along its lower border,,more expanded proximally, the coracoid evidently smaller and not bi-fid below, the glenoid surface smaller and broader, and the bone a littlelarger. In plate xxx is shown the outside view of a part of the lower jawand two views of a skull bone of undetermined location. They willbe described more fully in a future communication. PLATE XXVII. Eryops lueffacejihalns Cope. Left coraco-scapula, inside view, half natural natural size. Kan. Univ. Quar . Vol. VIII, Series A. PLATE XXVn. PLATE XXIX. Eryops megacexyhalus Cope,Left coraco-scapula, outside natural size. ILvNT. ITurr. QuAR. , Skries A. XXVt
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