PROF. H. Gr. SEELET OX ARISTOSUCRTTS PTJSILLTJS 



223 



in the support of the weight of the body when at rest. This type 

 of pubis, which Professor Marsh has described in Allosaurus and 

 Ccelurus, has not hitherto been detected in this country, but may be 

 present in the Wealden rocks in other species ; for while studying 

 this specimen, Dr. Henry Woodward submitted to me the pubis, 

 imperfect distally, of a type very similar to Ccelurus, from Tilgate. 

 This corroboration is the more interesting as the Sussex type of 

 animal shows the proximal end of the bone. 



The pubes are somewhat crushed together (fig. 14, p) ; I accord- 

 ingly drew the anterior aspect of one of the bones in its natural 

 position, and repeated it, reversed, on the opposite side, so as to 

 reproduce the form which the pubic bones show when seen from 

 the front (see woodcut below), with the result that a close general 

 resemblance was established to the pubis which Marsh has referred 

 to Ccelurus ; and without attaching too much taxonomic importance 

 to this fact, it establishes the interest of the fossil, in being a 

 European representative of an American type. 



Anterior aspect of pubic bones of Aristosuchus restored. ^ nat. size. 

 a. Unossified extremity of the ventral keel. 



^ The part of the pubic bone preserved in this specimen extends 

 distally for 13 centimetres. "Where the bones converge distally 

 they unite at an angle of about 60° with the posterior extension 



