﻿Vol. 6 1.] OSSIFEROUS CAVERN AT LONGCLIFFE. 55 



Eecently there has been some question as to the propriety of using 

 the name of Rh. leptorhinus for this species of Rhinoceros, rather 

 than Rh. hemitcechus as was done by Falconer. The question 

 was fully discussed by Prof. W. Boyd Dawkins, 1 and for many 

 years the former name has been adopted in this country. There is 

 no doubt as to the British forms called by Owen Rhinoceros lepto- 

 rhinus being the same species as those for which Falconer proposed 

 the name of Rh. Jiemitcechus ; but the synonymy of the Continental 

 forms is a much more complex problem, the solution of which will 

 not be attempted here ; the matter is only referred to, for the 

 purpose of making it clear that the species found in the Longcliffe 

 Cave is that for which the two names above mentioned were used 

 respectively by Owen and Falconer. 



Rhiiioceros-iem&ms have been met with in all the upper layers 

 (Nos. II-8) except the topmost, and in the south-south-eastern 

 lower layer (No. 9). 



Eleph as antiques, Falconer. (Straight-tusked Elephant.) (PI. VII, 

 figs. 5 & 5 a.) 



Only a single specimen has been found, to indicate the presence 

 of this species : and this is one half of a third milk-molar, with 

 three plates and a talon preserved. The greatest length of this 

 tooth is 44 millimetres, its greatest width 31 mm., and the length 

 of the parts preserved is 33 mm. The enamel, where seen, is 

 very coarsely wrinkled, but a cap of cement extends a good way down 

 the sides of the crown. The tips of one or two points of the plates 

 are just appearing through the cement. The base is very open, 

 the plates seeming to consist of little more than the enamel, with 

 but a slight infilling of dentine, showing that the tooth was not 

 fully formed and that the animal was a young one. 



This tooth was found in layer No. III. 



Rodentia. 



Lepus cuniculus, Linn. (Babbit.) 



A number of bones, seemingly parts of one skeleton, were 

 obtained from the fissure at the south-south-eastern end of the cave 

 (No. 10) ; and a few others were found in layers Nos. I, II, & III. 



Lepus sp. (Hare.) 



Two metapodial bones are probably referable to the common 

 hare ; one of these was from the south-south-eastern lower laver 

 (No. 9). 



Microtus (Evotomts) glareolus, Schreber. (Bank- Vole.) 



This species is represented by an upper anterior cheek-tooth 

 with fangs and an incisor, as well as by two or three humeri, which 



1 Quart. Journ. Geol. Soc. vol. xxiii (1867) p. 213. 



