PLATE XXXIX. 



I'AGJ 



Fig. I. Leptnphractus obsoletits. Side vievr of anterior part of cranium, the end of the muzzle brolien 



off. Two-thirfis natural size 400 



2. Prolile of a second spscimen of the same species ; the muzzle ]>reserved. Two-thirds natural 



size - . 4t 



3. VertebrjB, of uncertain reference, mentioned in the description of Leptophrcwtus 399 



4. Cocytinus gyrinoides. Yiew of inferior surface of cranium and vertebral column. Twice nat- 



ural size. The obverse is represented in cut No. 5, page 0(il 364 



