. Revision of the Amphibia and Pisces of the Permian of North America. 1-3. Sagenodusfossatus, dental plates, X \) Am. Mus.: original of figs. 1, \a. No. 7475; originalsof 2 and 3, No. 7260. 4, 4ff. Sagenodus paucicristatus. Dental plate, X 13^ Type. No. 6505 Univ. of Chicago. 5, 5(Z. Sagenodus periprion. Left palatal plate, X 1)^. Type. No. 7474 Am. Mus. 6, Sagenodus heterolophus^. Incomplete dental plate, X 1%. No. 7473 Am. Mus. 7, 7a, 8. Sagenodus vinslovi. Left palatal plates, X IX. Type. 7, 7a. No. 6507 Univ. of Chicago. 8. A specimen from Texas; No. 7233 Am. Mus. 9, 9a;. Side and top
. Revision of the Amphibia and Pisces of the Permian of North America. 1-3. Sagenodusfossatus, dental plates, X \) Am. Mus.: original of figs. 1, \a. No. 7475; originalsof 2 and 3, No. 7260. 4, 4ff. Sagenodus paucicristatus. Dental plate, X 13^ Type. No. 6505 Univ. of Chicago. 5, 5(Z. Sagenodus periprion. Left palatal plate, X 1)^. Type. No. 7474 Am. Mus. 6, Sagenodus heterolophus^. Incomplete dental plate, X 1%. No. 7473 Am. Mus. 7, 7a, 8. Sagenodus vinslovi. Left palatal plates, X IX. Type. 7, 7a. No. 6507 Univ. of Chicago. 8. A specimen from Texas; No. 7233 Am. Mus. 9, 9a;. Side and top views of the type of Gnathorhiza serrata, No. 7258 Am. Mus. X 3. 10, Top view oi Gnathorhiza pusilla. Type. No. 6508 Univ. of Chicago. X 3. 11, 11a. Ceratodus favosus. Imperfect dental plate attached to a of the splenial, X IX-Type. 11, seen from above; \\a, viewed from side. No. 7230 Am. i\Ius. CASE—AMPHIBIA AND PISCES. lb Diacranodiis texensis (Cope). X Y^. Texas. 1. Anterior portion of a cranium, viewed from above. Cotype. No. 7929 Am. The same viewed from below. 2. Posterior half of a cranium, viewed from above. Cotype. No. 7930 Am. The same seen from below. 2b. The same in posterior view. 3. Tooth, probably of this species. 4. Nearly complete cranium seen from above. No. 7931 Am. The same seen from below. an, auditory capsule; , cotyloid cavity for articulation of occipital spine;, ethmoid canal; F, F^, fontanelles; f. mag., foramen magnum; ,opthalmic foramen; Ft. , postorbital process; , pituitary fossa.^;, supraorbital foramen; tr., trabecula; v. a., vestibular aqueduct. CASE—AMPHIBIA AND PISCES - — M^^S
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