EXPLANATION OF THE PLATES 
All figures represent Mesosaurus brasiliensis. Plates II., IIl., and 1V. are 
photagraphs from casts. 
‘PLATE I 
Fig. 1. Restoration, about two-fifths natural size. 
PLATE II 
Fig. 2. Dorsal view of skeleton, natural size. 
In this figure the neck appears shorter than it is owing to the crushing of 
the first four cervicals. 
PLATE IIL 
Fig. 3. Ventral view of skeleton, enlarged one-eighth. 
‘The left coracoid is slightly displaced, the right nearly in situ. 
This figure shows the pubic notch. 
Fig. 4. Ventral view of cervical and anterior thoracic regions, natural size. 
The posterior extremities of the mandibles are shown, and the inner face of the 
right scapulo-coracoid complex. 
Fig. 5. Left hind limb and anterior caudals, ventral view, natural size. A 
displaced interclavicle is also shown in the figures 
‘PLATE IV 
Alk figures in this plate are natural size. 
Fig. 6. Skull and anterior cervical vertebrae. 
Fig. 7. Skull, dorsal view. The extreme lateral direction of the teeth in this 
specimen is probably due to crushing. 
Fig. 8. Skull (same specimen as fig. 7), ventral view. This cast shows the 
occipital condyle and the vomerine teeth. 
Fig. 9. Right half of pelvis, inner view. 
Fig. 10. Partial skeleton, left side. 
