AND SAUROPTERTUIANS OE THE PUEBECK ETC. 45 



"VYealden referred to 1. hernissartensis, and much larger than those 

 of /. Mantelli^ it appears very probable that it may be referable to 

 the Lower Wealden /. Daivsoni^ which is intermediate in size between 

 these two species. The specimen is represented on a reduced scale 

 in fig. 3 from the posterior aspect. It will be seen from the 

 figure that, with the exception of the parts of the edge of the 

 posterior termiual cup of the centrum, the specimen is pracfically 

 entire. The distinct neural spine, long transverse processes, and the 

 position of the capitular rib-facet high up on the centrum indicate 

 that the specimen is from that part of the vertebral column where 

 the cervicals are just acquiring the characters of dorsals ; but since 

 the centrum is opisthocoelous, and apparently carries the whole of 

 the capitular facet, I think the specimen should be reckoned as a 

 cervical. The extreme height of this specimen is 13 inches ; the 

 height from the base of the neural canal to the summit of the neural 

 spine 7 inches, and the transverse diameter of the posterior cup of 

 the centrum 6'5 inches. 



II. Metatarsus of Megalosaurus /rom tJie Wadhurst Clay. 



In 1887 Dr. Ernst von Koken *, of Vienna, described and figured 

 a Megalosaurian tooth from the Lower Wealden of Gerniany, which 

 in 1884 Prof. Dames had made the type of the species Megalosaurus 

 Dunheri. In the following year, when cataloguing the Dinosaurian 

 remains in the British Museum f, finding that the Megalosaurian 

 teeth from the English Wealden presented no characters by which 

 they could be specifically distinguished from the type of M. Dunl-en', 

 I referred the whole of them, irrespective of size, to that species ; 

 under which heading I also included a number of vertebrae and limb- 

 bones. 



Among the limb-bones was the imperfect metatarsus (No. 2.559) 

 figured in Owen's ' Wealden and Purbeck Ileptilia ' (Mon. Pal. Soc. 

 pt. iv. pi. xi.) as ffykeosaurus, which, as I have indicated in a former 

 communication to this Society J, appears to be Megalosaurian. In 

 addition to this specimen there were also entered a dorsal vertebi^a 

 (No. R. 604 a), an imperfect tibia (R. 604 c), and the fourth left 

 metatarsal (11. 604 d). all of which were obtained (as I am now 

 informed) by Mr. Dawson in 1884 from the Hollington quarry, near 

 Hastings, in immediate association, and which may be safely regarded 

 as referable to a single individual. I considered that this metatarsal 

 agreed with the metatarsal of No. 2559, described by Owen as tlie 

 fourth ; the whole of that metatarsus being figured by him as belong- 

 ing to the left side. 



Thus matters stood still till the spring of 1889, when ^Ir. Dawson 

 brought another metatarsal of Mer/alosaurus (B.'M. No. K. 1525) 

 which had recently been obtained from the same quarry, but at 



» Pal. Abhandl. vol. iii. p. 310, pi. ii. fig. 2. 



t Cat. Fuss. Rent. Ampliib. Brit. Mus. pt. i. pp. 163-lGS. The auth.ority 

 for the species is there erroneously given as Koken. 

 I Quart. Journ. Geol. Soc. vol. xhv. p. 53. 



