1867.] BOYD DAWKINS — EHINOCE-ROS lEPTOEHINFS. 215 



Halitherium Serresn, and in the Eastern Counties with ElepJias meri- 

 dionalis and E. priscus. 



3. B. Etruscus. — The third British species of Rhinoceros is repre- 

 sented by comparatively numerous remains derived from the Forest- 

 bed of !N"orfolk and Suffolk, for some of which the late Dr. Falconer 

 proposed the name Rhinoceros Etruscits. The name of this unfigured 

 and undescribed species rests upon MS. notes attached to speci- 

 mens in the British and Norwich Museums, and in the collections of 

 the Rev. S. W. King, F.G.S., and the Rev. J. Gunn, F.G.S., and is 

 retained, out of respect for the memory of so much knowledge buried 

 in Dr. Falconer's grave, for the assemblage of remains of Rhinoce- 

 ros which belong to one and the same unpublished species. 



An examination of the plaster cast of the skull of Rhinoceros 

 found in the Yal d'Arno, and exhibited in the Exhibition of 1861, 

 proves that the Etruscan Rhinoceros, unhke the tichorhine and me- 

 garhine, had its nasals supported by a demi-cloison or osseous parti- 

 tion, which sundered in part the one nostril from the other, and 

 strengthened the basement of the anterior horn. The head was smaller 

 and more slender than that of the other species. The upper molars 

 are characterized by the lowness of their crowns, which strongly re- 

 semble those of the milk-teeth of M. megarhinus ; and the last true 

 molar strongly resembles in general form that of the Miocene Acero- 

 therium incisivum of Dr. Kaup, in the possession of Sir Philip Egerton, 

 Bart., F.R.S. I have met with the remains of this species in the 

 collections of Messrs. Gunu and King, and in the British and Norwich 

 Museums. The teeth in the collection of Mr. Fitch, of Norwich, 

 ascribed by Professor Owen to B. leptorhinus, belong to this animal. 

 In Britain its remains have occurred only in the Forest-bed on the 

 east coast. On the Continent they have been determined by Dr. 

 Falconer from Malaga ; and in the collection made by M. Bravard, 

 from Perolles, and preserved in the British Museum, are two upper 

 molars, labelled in the MS. Catalogue as tichorhine, which, beyond 

 all doubt, belong to the Etruscan species, and correspond exactly in 

 size, form, and sculpturing with specimens from the Cromer shore 

 in the possession of the Rev. S. "W. King, of Saxlingham. Bhino- 

 ceros Etruscus, therefore, in Preglacial times ranged from the Eastern 

 Counties, southwards through France, on the one hand across the 

 Pyrenees as far as the Straits of Gibraltar, on the other across the 

 Alps, at least as far down in the Italian peninsula as the Yale of 

 Florence. Its range over South-western Europe may perhaps prove 

 that it was fitted for a warmer climate than the tichorhine species, 

 which it preceded in point of time. In common with the other fossil 

 members of the Genus Rhinoceros found in Britain, it was bicorn, 

 and possessed a dental formula of three premolars and three true 

 molars in both jaws. The description of the species, so far as my 

 materials allow, I hope to complete in a few months. 



II. Rhinoceros leptoehintjs, Owen*. 

 1. History of the name. — The fourth British species of Rhinoceros 

 '^ Op. cit p. 356. 



