RHIXOCEEOTIDJS. 113 



20816 b. The left second metatarsal ; from the Pleistocene of 

 Grays. Purchased, 1847. 



23761 g. The right third metatarsal; from the Pleistocene of 

 Grays. This and the next specimen are of very large 

 size. Purchased, 1849. 



19842. The right third metatarsal ; from the Pleistocene of Clacton. 



Presented by John Broivn, Esq., 1852. 



20245. The right third metatarsal; from the Pleistocene of Ilford. 



Purchased, 1847. 



21294 x. The right third metatarsal ; from the Pleistocene of 

 Grays. Purchased, 1847- 



45276. The left third metatarsal; from the Pleistocene of Ilford. 



Brady Collection. Purchased, 1878. 



47662. The third and the proximal portion of the fonrth metatarsal 

 (Pig.) of the right side; from the Genista Cave, Gibraltar. 

 Figured by Busk in the Trans. Zool. Soc. vol. x. pi. xvi. 

 Brome Collection. Presented, 1876. 



47766 a. The proximal half of the third and the complete fourth 



(Fig.) metatarsal of the right side ; from a cavern in Windmill 



Hill, Gibraltar. The former is figured by Busk in the 



Trans. Zool. Soc. vol. x. pi. xvii. figs. 1-4, as R. hemitcechus. 



Brome Collection. Presented, 1876. 



23761 g-2. The fourth right metatarsal, of large size ; from the 

 Pleistocene of Grays. Purchased, 1849. 



19834 a. The fourth right metatarsal, of smaller size ; from the 

 Pleistocene of Grays. Purchased, 1845. 



47650. Two portions of the atlas vertebra ; from the Genista Cave, 



(Fig.) Gibraltar. Figured by Busk in the Trans. Zool. Soc. 



vol. x. pi. xviii. figs. 1, 2, under the name ?f U. hemitce- 



chus. Brome Collection. Presented, 1876. 



42076. The imperfect atlas vertebra; from the Pleistocene of 

 Ilford. Purchased, 1864. 



M. 2520. Two specimens of the atlas vertebra ; from the Pleistocene 

 of Barrington. Purchase^, 1885. 



22025. The axis vertebra ; from the Pleistocene of the Thames 

 Valley (? Grays). Purchased, 1847. 



PART III, I 



