516 DE. C. I. EOKSTTH MAJOR ON 



Fig. 11 Prolagus sardus (Wagn.). Posterior right upper premolar (p. 1), from a young specimen. 



Monte San Giovanni (Sardinia). Br. Mus. G. D. No. M3461. 

 Pi"-. 13. Titammys Fontannesi (Dep.). First left upper molar (ni. 1), slightly worn. 

 Fig. 13. Titanomys Fontannesi (Dep.). First left upper molar (m. I), slightly worn. 

 Fig. 14. Titanomys Fontannesi (Dep.) . Right upper, probably deciduous, molar ; mueh worn *. 

 Fig. 15. Titanomys Fontannesi (Dep.). Posterior right upper premolar (p. 1) *. 

 Fio-. 16. Prulnyus sardus (Wagn.). Fragment of right maxillary ramus, with posterior premolar (p. 1), 



and the two true molars (m. 1, m. 2). Monte San Giovanni. Br. Mus. G. D. No. M3159. 

 Fi"-. 17. Caprolagus [Oryctolagus) cuniculus (Linn.). Young individual, slightly older than fig. 5. The 

 two posterior premolars (p. 2, p. 1) and the two anterior molars (m. 1, m. 2) of the right side. 

 Fio-. 18. Titanomys visenoviensis, H. v. Mey. Upper molar, much worn. Bravard Collection. Lower 



Miocene, AUier. Br. Mus. G. D. No. 31094-104. 

 Fig. 19. Titanomys visenoviensis, II. v. Mey. The two posterior ]n-emolars (p. 2, p. 1), from a fragment 

 of the right maxillary. Lower Miocene of Wcisenau ((jcrmany). Br. Mus. G. D. No. 21495. 

 Fig. 20. Caprolagus (Syhilayus) brasiUensis (Linn.). Riglit upper posterior deciduous molar (d. 1), from 



a skull in the Br. Mus. Z. D. No. 58.4.15.1. 

 Fig. 21. Prolayiis (eningensis (Kon.). Complete series of the riglit upper cheek teeth (p. 3-m 2)*. 

 Fig. 22. Lejjus timidus, Linn. (L. variabilis, Pall.). Right upper cheek-teeth of young individual; the 

 two posterior deciduous molars have been removed, in order to show the overlying premolars 

 (p. 2, p. 1). Ireland. W. E. de Wintou, Esq. 

 Fig. 23. Titanomys Fontannesi (Dep.). Left upper jaw, showing the empty alveoli of the five cheek- 

 teeth. 4x1*. 

 Fig. 24. Prolagus sardus (Wagn.). Complete series of the right upper cheek-teeth, or (p. 3-m. 2). 



Ossiferous breccia of Monte San Giovanni (Sardinia) *. 

 Fig. 25. Lepus europceus, Pall. Unworn right upper median premolar (p. 2) of young individual. 



From a skull in the Br. Mus. Z. D. No. 523 /. 

 Fi"^. 26. Lepus timidus, Linn. Posterior right upper deciduous molar (d. 1 ), removed from the jaw fig. 22. 

 Fio-. 27. Caprolagus hispidvs (Pears.). Median right upper premolar (p. 2), of young individual in the 



Br. Mus. Z. D. 

 Fig. 28. Lepus sp. Right upper deciduous molars (d. 3-d. 1). China. Br. ilus. Z. D. 

 Fig. 29. Prolagus wningensis (Kiin.). Right upper deciduous molar (either d. 1 ord. 2) *. 

 Fig. 30. Lagopsis verus (Hens.). Right upper deciduous molar (either d. 1 or d. 2). Middle Miocene 



of La G rive-Saint- Alljan *. 

 Fig. 31. Lagopsis verus (Hens.). Median riglit upper pi-emolar (p. 2). La Grivc-Saint-Alban. Br. 



Mus. G. D. 

 Fig. 32. Lagopsis verus (Hens.). Left upper molar. La Grive-Saint-Alhan. Br. Mus. G. D. 

 Fig. 33. Cajjrohigus hispidus (Peavs,.). Comjilete series of the right ujiper cheek-teeth. Adult. From 



a skull in the Br. Mus. Z. D. 

 •i^'ig. 34. Lejms nigricollis, F. Cuv. Posterior right upper premolar (p. 3). Br. ]Mus. Z. D. No. 81.4.29.7. 

 Fig. 35. Titanomys Fontannesi (Dep.). Left upper deciduous molar (either d. 1 or d. 2) *. 

 Fig. 36. Paheolayus Haydeni, Leid. Fragment of right maxillary ramus, showing the empty alveolus 

 of the median premolar (p. 2), and the three following cheek-teeth (p. 1, in. 1, m. 2). Br. 

 Mus. G. D. No. M5727. 



Plate 37. 



Fig. 1. Titanomys Fontannesi (Dep.). Isolated lower anterior premolar (p. 2), unworn. Middle 



Miocene of La Grive-Saint-Alban, like all the other specimens of this species*. 

 Fig. 2. Titanomys Fontannesi (Dep.). Another isolated specimen of the same tooth, slightly worn*. 



