DAWKINS ON THE DENTITION OF HTJENA SPEL^A. 



83 



represented in the caverns of France, Germany, and England, by the 

 Spelaean Hyena. 



Of the relation of R. Monspessulana of Christol, to S. prisca, 

 and of S. Eximia, mentioned by M. Gaudry (Bui. Soc. Geol. de 

 France, 1862-3, 2 Series, torn. 20, p. 404i), to H. hrunnea and B. 

 Arvernensis, we can say nothing. 



The equivocal premolar found in Auvergne, upon which the pro- 

 visional species H. duhia^ (Croizet and Jobert) is based, and that 

 found in the Eed Crag of Suffolk, and described by Mr. Lankester 

 under the name of H. antiqua,^ differ to such an extent from any 

 known or extinct species, and bear such an exceptional character, 

 that we must wait for further evidence before discussing their merits. 



The fossil species which now remain to be discussed, are the IL 

 intermedial of Marcel de Serres, and the §3". Ferreri of MM. 

 Croizet and Jobert. And as the question of their validity as species 

 is most essentially connected with the accurate definition of the 

 dental characteristics of S. spelcea, it will be more convenient to 

 treat of them along with the latter. 



§ 3. A. The following notes upon the deciduous dentition of I£. 

 spelcda, are based upon an examination of two upper jaws in the 

 British Museum, and two in my own possession, and of five lower 

 jaws and numerous isolated teeth. The pair of jaws figured (fig. 1 & 

 2), containing the entire unworn milk molar series, were obtained by 

 Mr. Ayshford Sanford, F.G.S. and myself in Wookey Hole Hyena- 

 den in our further exploration of 1863. Tliey were lying imbedded 

 in the red earth, with which the cavern was filled, within a few feet 

 of each other, at the point where the passage B. joins the Antrum in 

 the groimd plan given in the Quarterly Geological Journal, || and 

 close to a mass of breccia, containing fragments of calcined bone 

 and one roughly chipped splinter of greensand chert. Their state 

 of preservation shows that they belonged to the same individual, 

 which probably, from the teeth marks on the lower jaw, fell a prey 

 to some of its older and more powerful fellows. The fragments of 

 album grsecum which fill up the alveolus of the lower true molar, 

 prove also that the jaw was lying on the coprolite covered floor of 

 the cave for some time previous to its being imbedded. 



* Op. cit. p. 181.pl. 2. fig. 4. 



f Annals and Magazine of Natural History, Series 3, vol. xiii. No. 73. 



t Op. cit. p. 88. 



§ Op. cit. p. 173, pi. 1, fig. 12. pi. 11, fig. 3. 



II Vol. xix. p. 261. G 2 



