ANTHRAC0SAURID.E. 159 



dental series. The anterior palatine tusk is seen imme- 

 diately behind the posterior nares on the left side ; while 

 other large tusks are shown further back on the palate in 

 the same position as in Huxley's figure of the type spe- 

 cimen in the ' Quart. Journ. Geol. Soc' vol. xix. p. 59, 

 fig. 1. The contour of the palatine foramina is obscurely 

 indicated. One of the palatine tusks is beautifully pre- 

 served. Purchased, 1856. 



45859. Slab of shale showing the inner aspect of a portion of the 



right ramus of the mandible ; from the Coal-Measures 

 (Upper Carboniferous) of Newcastle. This specimen appa- 

 rently accords with the entire ramus figured by Atthey in 

 the ' Ann. Mag. Nat. Hist.' ser. 4, vol. xviii. pi. x. figs. 1, 2. 

 Several of the teeth remain, and show the oval contour of 

 the cross-section, with its larger diameter transverse to the 

 axis of the jaw. Purchased, 1874. 



R. 1740. The articular region of the right ramus of the mandible of 

 a small individual of this species or of an allied smaller 

 form ; from the Coal-Measures of Northumberland. Re- 

 sembles the corresponding part of the larger ramus figured 

 by Atthey, op. cit. pi. x. fig. 1, and shows very clearly the 

 absence of a postarticular process. 



Presented by J. Wood Mason, Esq., 1880. 



37324. Slab showing three vertebrae and ribs ; from the Coal- 

 (Fig.) Measures of Airdrie, Lanarkshire. The one vertebra in 

 which the greater portion of the arch remains and a rib 

 are figured by Huxley in the ' Quart. Journ. Geol. Soc/ 

 vol. xix. p. 63, fig. 2. The figured vertebra resembles the 

 entire one figured by Atthey, pi. x. fig. 4. 



Purchased, 1863. 



45860. Slab showing six imperfect vertebral centra; from New- 



castle. Purchased, 1874. 



45861. The centrum of a larger vertebra; from Newcastle. 



Purchased, 1874. 



45862. Slab of shale showing the greater portion of a rib ; from 



Newcastle. Purchased, 1874. 



41851 x. Slab showing portion of the vertebral column with ribs ; 

 from the Coal-Measures of Jarrow Colliery, Kilkenny. 

 The vertebrae are badly preserved; one rib shows its 

 double head. Purchased, 1870. 



