IGTJANOD OOTIDS. 233 



R. 1144. Cast of the two ossifications of the sternal (?) region. The 

 original was obtained from Hastings, and is in the collec- 

 tion of Mr. S. H. Beckles ; it is figured by Hulke in the 

 ' Quart. Journ. Geol. Soc/ vol. xli. pi. xiv. fig. 1, and 

 regarded as the clavicle and interclavicle. This identifi- 

 cation is disputed by Dollo in the ' Rev. Quest. Scient/ 

 1885, p. 666, who regards these bones as parts of the 

 sternum, but not of either /. bernissartensis or I. mantelli. 

 The same conclusion is arrived at by Baur in the ' Zool. 

 Anzeig.' vol. viii. p. 561 (1885) • while Cope, in the ' Amer. 

 Nat/ 1886, p. 153, compares these and the homologous 

 bones of I", bernissartensis to those of Diclonius, and con- 

 siders that Hulke has figured them in a reversed position. 

 The specimen is again noticed by Seeley in the ' Geol. 

 Mag.' 1887, pp. 84-86, who agrees with Cope in regard 

 to the reversion of Hulke's figure, but identifies it with 

 the xiphisternum, and suggests that its process extended 

 backwards to articulate with the ' prepubis.' Finally, 

 these bones are again described and figured by the same 

 writer in the 'Proc. R. Soc/ vol. xliii. p. 240 (1887), 

 where they are termed prepubis, and are identified with 

 the bones commonly termed pubes in the Eusuchian Croco- 

 dilia. The suggestion that this specimen may belong to 

 the I. dawsoni form was made by the writer in the ' Quart. 

 Journ. Geol. Soc/ vol. xliv. p. 52. Made in the Museum. 



2218. A single sternal ossification of similar type ; from Cuckfield. 



(Fig.) Figured by Mantell in the ' Phil. Trans/ 1841, pi. viii. 

 fig. 20, as an undetermined bone. Although the differ- 

 ence from the corresponding bone of 1. mantelli (No. B. 33) 

 and of the unnamed form mentioned on p. 226 is difficult 

 to describe, yet it is very marked. 



Mantell Collection. Purchased, 1838. 



40709. The proximal half of a right scapula ; from Bulverhythe, 



near Hastings. This specimen apparently closely accords 



with the scapula provisionally referred to I", bernissartensis. 



Mantell Collection. Purchased, 1853. 



R. 115 a. The proximal half of a smaller left scapula, not impro- 

 bably belonging to the same species as the preceding ; from 

 the Isle of Wight. Fox Collection. 



