CASE— AMPHIBIA AND PISCES 



PLATE 30 



1-4. Megalichthys nitidus (QoX'^')\ natural size. Texas. 



1. Vertebrae with neural spines. 



2. Incomplete vertebral rings. 



3. Flank scales of t3'pe specimen. No. 7239 Am. Mus. 



4. Pectoral fin of type specimen. No. 7239 Am. Mus. 

 5, ha. Fragment of a spine belonging to (?) Hybodiis. 



X 1%. Texas. No. 7263 Am. Mus. 

 6,6a. Ctenacatithus auiblyxiphias (Coiie). X I/3. No. 

 7282 Am. Mus. 



7. Scale of Platysomns palmaris (Cope), of about 



three times the natural size. 



8. Diacranodiis platypternus (Cope). Posterior 



portion of right meckelian cartilage, in outer 

 view. X%. Cotype. Texas. No. 7243 Am. Mus. 



9. Diacranodiis texeiisis (Cope). Left mecl<elian 



cartilage .slightly defective at posterior extrem- 

 ity; inouterview. X %. Texas. Am. Mus. 

 9b. Articulating surface of the meckelian cartilage 

 seen from above. 



