RHINOCEROS ANTIQUITATIS. 401 



Tlie following are the principal dimensions: — 



Length of fragment, 4 - 6 in. Joint length of three milk molars, 3'1 in. Length 

 of m.m. 1, 07 in. Ditto of m.m. 2, TO in. Ditto of m.m. 3, 1-3 in. Height of 

 jaw under m.m. 1, inside, 1*6 in. Ditto at hinder end of m.m. 3, 2'0 in. Greatest 

 thickness of ramus below, at section, 1*5 in. 



The jaw at hind section is gnawed, but not deeply scored, as if by 

 Hycena. 



This specimen confirms my former doubts, 1 that the Lawford speci- 

 men has the milk dentition, and not the permanent, as described in 

 the ' Brit. Foss. Mammalia.' 



IV — Memorandum of Skulls of Ehinoceros Antiquitatis in the 



Stuttgart Museum. 



June 18, 1861. 



Saw two skulls of Rhinoceros tichorhinus, found in the Lehm, near 

 Stuttgart ; one of them very large but somewhat crushed. The molars, 

 lower jaws, and other bones of this species, are very numerous. Looked 

 over the whole of them, but saw nothing in the slightest degree resem- 

 bling either Rhinoceros hemitaichus, Rhinoc. leptorhinus, or Rhinoc. 

 Etruscus. (See antea, p. 398.) 



V. — Molars of Ehinoceros Antiquitatis in the Collection of Dr. F. 



Spurrell, Belvedere. 



September 10, 1863. 



Of Rhinoceros tichorhinus there are fourteen characteristic and well- 

 marked detached upper molars, including a pair of last (m. 3) of oppo- 

 site sides. They are all highly characteristic specimens of the species, 

 i.e. the enamel is thick and rough, and the valleys are three and ver- 

 tical. They are in a ruder state and appear to have been rolled or 

 tumbled about much more, than the leptorhine molars in the same col- 

 lection. Woodward, Prestwich, and myself are agreed upon this. 

 (See antea, p. 398.) 



VI. — Memo, of Ehinoceros Antiquitatis in Mr. Grantham's Collection. 



September, 1863. 



Posterior part of the cranium of Rhinoc. tichorhinus, including nearly 

 the whole of the occiput with the left condyle quite entire. The occi- 

 pital crest is perfect, and on the left side the parietal and temporal re- 

 gions, with the auditory foramen and the styloid process, are nearly 

 perfect. The skull, in situ, was probably entire. There are also 

 several fragments of the upper jaw containing teeth. One left maxil- 

 lary contains four molars of an adult animal in situ. The teeth show 

 distinctly the character of Rhinoc. tichorhinns. There are no lower jaw 

 specimens, but several detached lower molars. The only remains of 

 Rhinoc. leptorhinus in this collection is one molar, very far advanced 

 in wear and very like Dr. Spurrell's (p. 398). 



1 Expressed in Note-hooks after exa- 

 mination of the Lawford and Wirks- 

 worth Jaws of R. tichorhinns in the 

 VOL. II. D D 



Oxford Museum in 1858. See also 

 antea, p. 348. — [En.] 



