Geological Society. 267 



ilium, ischium, and pubis; femur, tibia ; humerus, metatarsals, and 

 phalanges. The latter is known from cervical, dorsjil, and caudal 

 vertebra), femur, metatarsals, and bones of the digits. The affinities 

 with Zanclodon are, in some parts of the skeleton, stronger than with 

 EnsleJesauras. 



Part 7 gives an account of Euslcehsaurits Drotvni, partly based 

 upon materials obtained by Mr. Alfred Brown from Barnards Spruit, 

 Aliwal North, and partlj' on specimens collected by the Author, with 

 Dr. \V. G. Atherstone, Mr. T. Bain, and Mr. Alfred Brown, at the 

 Kraai River. The former series comprises the maxillary bono and 

 teeth, vertebra^ pubis, femur, tibia and fibula, phalanges, chevron 

 bone and rib. Tbe latter includes a cervical vertebra and rib, and 

 the lower jaw. The teeth are stronger than those of Teratosaurus, 

 or any known Megalosaurian. The anterior part of the head was 

 compressed from side to side, and the head in size and form like 

 Meyalasauruis, so far as preserved. The pubis is twisted as in 

 Sffif/anolepis and AIassos2iondi/hfs, with a notch instead of a foramen 

 at the proximal end, as in those genera ; and it expands distally 

 after the pattern of Zanclodon. The chevron bones are exception- 

 ally long, and the tail appears to have been greatly elongated. The 

 femur is intermediate between JMegalosaunis and Pala'osaurus, but 

 most resembles Zanclodon and Massospondtilus. The tibia in its 

 proximal end resembles many Triassic genera ; and in its distal end 

 is well distinguished from JSJassospondyhis by its mode of union 

 with the astragalus. The claw-phalanges are convexly rounded, 

 being wider than is usual in Megalosauroids. The lower jaw from 

 the Kraai Biver gives the characters of the articular bone, and the 

 articulation, as well as of the dentary region and teeth. The 

 cervical vertebra is imperfect, but is remarkable for the shortness 

 of the centrum, being shorter than in Megalosaurus. 



In Part 8 an account is given of Hortalotarsus skirtopodus from 

 Barkly East, preserved in the Albany Museum. It is an EusKele- 

 saurian, and exhibits the tibia and fibula, and tarsus. There is a 

 separate ossification for the intermedium, which does not form an 

 ascending process ; and the astragalus is distinct from the calcaneura. 

 The metatarsals are elongated, and the phalanges somewhat similar 

 to those of Diuiodosaarus. 



Part U, in conclusion, briefly examines the relations of the Saur- 

 ischian types with each other, and indicates ways in which they 

 approximate towards the Ornithosauria. It is urged that the Uruitho- 

 pauria are as closely related to the Saurischia as are the Aves to the 

 Ornithischia ; and that both divisions of the Saurischia approximate 

 in tStafjanolejiis and Belodon. Finally, a tabular statement is given 

 of the distribution in space and time of the 2o Old-World genera 

 which are regarded as probably well established. Eight of these arc 

 referred to the Cetiosauria, thirteen to the Megalosauria, and four tu 

 the Anstosuchia or Compsognatha. 



