REPTILIA: LIMNOSCELIS 



31 



elongated opening of Meckel's groove near the middle of the inner 

 side, before the middle of the bone antero-posteriorly. A fracture of 

 the mandible a Uttle in front of the articular shows a large cavity 

 with an elongated opening above back of the teeth. The elongated 

 vacuity is bounded by the angular below, by the splenial in front, 



Fig. 6. — Limnoscelis pahidis. Outline of back of skull, two-fifths natural size. 



aMAMflflAMM{) 



Fig. 7. — Inner sides of mandibles, one-half natural size. A, Limnoscelis pahidis; 

 B, Labidosaurus hamatus. art, articular; q, quadrate; sur, surangular; cor, coro- 

 noid; pa, prearticular; ang, angular; sp, splenial. 



by the prearticular above behind, anteriorly apparently by the 

 coronoid; it is evidently merely the exposed groove. The splenial 

 is very broadly visible on the under side of the mandible, the 

 suture between it and the dentary beginning some distance in 

 front of the posterior end of the median symphysis, and extending 



