PLATE XLIV. 



PA»B. 



Fig. 1. Molgophis brevicostatus. Natural size 369 



2. Pleuroptyx clavatus. Portion of a larger specimen, Natnral size 370 



3. A liind limb, which accompanied tlie fast two specimens. Natural size 370 



4. Side view of a supposed species of Ptyonms. Natural size ^- 373 



