88 Reports and Proceedings — 



the deposits except the Upper Limestone. JEtobates subconversus 

 from the Sand Bed and Marl. The Squalida? are abundant from all 

 the deposits except the first. There are ten species belonging to 

 the following genera: — Carcharodon, Carcharias, Oxyrhina, Hemi- 

 pristis, Corax, Odontaspis, Lamna. Eemains of Notidanns, Platax, 

 and Diodon have also been found. 



2. " Dinosauria of the Cambridge Greensand." Parts I. — VII. 

 By Prof. H. G. Seeley, F.L.S., F.G.S. 



The author stated that this paper was founded upon the collection 

 of more than 500 Dinosaurian bones preserved in the Woodwardian 

 Museum, for the opportunity of studying of which he was indebted 

 to the kindness of Prof. T. McKenny Hughes. He described the 

 conditions under which the specimens occur, and accounted for the 

 apparently worn state of the bones as the results of exposure to the 

 air, and subsequent maceration. 



I. " Note on the Axis of a Dinosaur from the Cambridge Green- 

 sand." This bone was said to be very similar to the axis from the_ 

 Wealden previously described by the author (Q. J. G. S. vol. xxxi. 

 p. 461), but differed in the neural arch being supported on pedicels 

 of the centrum, in both articulations for the rib being on the 

 centrum, in the compressed form of the odontoid process, and in 

 the subhexagonal form of the oblique posterior articular surface of 

 the centrum. There is no indication of a wedge-bone beneath the 

 anterior articulation. The condition of the axis in other Dinosaurs, 

 such as Zanclodon, was indicated, and reasons given for regarding 

 the structure of the bone as a modification of the Crocodilian type. 



II. " On the Vertebral Characters of Acanthopholis horridus, 

 Huxley, from the base of the Chalk-Marl near Folkestone." The 

 author stated that only dorsal and caudal vertebra? of Acanthopholis 

 are at present known. The dorsal vertebra? have the visceral 

 surface well rounded, the articular ends subovate, and the centra 

 laterally compressed. The early caudal vertebra? are deep, with 

 strong compressed transverse processes, zygapophyses directed well 

 forward, and the neural spine directed upward and backward. The 

 centrum is inclined obliquely forward ; the facets for the chevron 

 bone large, and the anterior articulation circular. The later caudals 

 have nearly the same absolute length of centrum, and the transverse 

 process is first reduced to a tubercle, and afterwards disappears 

 entirely. A deep channel is developed on the underside of the 

 centrum, and two more or less marked ridges run along each side 

 of the centrum, making the articular ends subhexagonal. 



III. " On the Skeleton of Anoplosaurus curtonotus, Seeley." This 

 genus and species are founded upon an associated series of about 80 

 bones from near Reach. The remains include a portion of the left 

 ramus of the lower jaw, 5 cervical (axis and atlas missing), 13 

 dorsal, 6 sacral, and 8 caudal vertebra? (the tail being imperfect), 

 the coracoids (one imperfect), the proximal end of the scapula, the 

 proximal and distal ends of the humerus, the proximal and distal 

 ends of the femur, a small fragment of the ilium, small portions of 

 ribs, and fragments of the metatarsals and phalanges. The teeth 



