CASE— AMPHIBIA AND PISCES 



lb C.c. 



Diacranodiis texensis (Cope). X Y^. Texas. 



1. Anterior portion of a cranium, viewed from above. Cotype. No. 7929 Am. Mus. 

 la. The same viewed from below. 



2. Posterior half of a cranium, viewed from above. Cotype. No. 7930 Am. Mus. 

 2a. 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. Mus. 

 4a. The same seen from below. 



an, auditory capsule; C.c, cotyloid cavity for articulation of occipital spine; 

 e.c, ethmoid canal; F, F^, fontanelles; f. mag., foramen magnum; o. /., 

 opthalmic foramen; Ft. o.p., postorbital process; p.fos.f, pituitary fossa.^; 

 s.f., supraorbital foramen; tr., trabecula; v. a., vestibular aqueduct. 



