Dr. C. W. Andreics — E-xtinct Egyptian Vertebrates. 437 



Zeuglodon Osiris, Dames.^ 



Zeuglodon remains are not uncommon, and we obtained many 

 vertebrae, a fine mandible, and a large part of two skulls, from one 

 of which it will be possible to get a cast of the brain-case. There 

 are two forms, a large and a small, as described by Dames. The 

 smaller is certainly the Zeuglodon Osiris of that author, who con- 

 siders that the differences between the larger and smaller species 

 are merely sexual. Of this there seems to be much doubt, but 

 for the present, until further information is available, it will be 

 convenient to accept this view. 



Keptilia. 



The reptilian remains collected were very numerous and include 

 some forms of great interest. In many cases the bones were in 

 a wonderfully perfect state of preservation and had been almost 

 completely freed from the matrix. Some of the more important 

 new forms only will be noticed here ; these include two species of 

 snakes, three Chelonians, and a Crocodilian. 



Fig. 1. — Vertebrae of Gigantophis. Two-thirds natural size. (A) Three articulated 

 vertebr;e from above ; (B) vertebra from front ; (C) vertebra from side. 

 a.z. anterior zygapophysis ; hyp. hypapopbysis ; n.s. neural spine ; 

 p.z. posterior zygapophysis ; r. articular facet for rib ; zijg. zygosphene. 



Opliidia. 



The fossil remains of snakes are, as a rule, very rare, but in the 

 lower beds in which our collections were made Ophidian vertebras 



1 Palaeont. Abband., neue Folge, Bd. i (1894), p. 189. 



