PLATE XLV. 
Figs. 1-5. riienacodaspniuaivv.R, juws and teeth, natural size. Page 174. 
Fig. 1. Portion of 1 ft inaiidihiilar raitms, with maiulihiilar and inaxillaiy teeth, viewed from the outer 
side; la, the same, from the inner side. 
Fig. 2. Superior molar teeth of the same speeimen, viewed from helovv. 
Fig. 3. Inferior molar teeth of the same, viewed from above. 
Fig. 4. Fragment of the right maudihnlar ramus of another individual, supporting true molars, viewed 
from the outer side ; 4 a, from above. 
Fig. 5. Last inferior true molar from a third individual, from above. 
Fig. (1. Superior true molar of Phevacodus omnivorus, ciowu from below, natural size. Page 178. 
Fig. 7. Superior molar of Phaiacodm iukatus, from below, natural size; 7a, the same, double natural 
size. Page 179. 
Fig. 8. Fragment of mandibular ramu.s of Opisihotomus flayrans, coutaiuing the last molar, the outer side,, 
natural size; 8a, the same, from above. Page 152. 
Fig. 9. Last and preceding inferior molar of Opisthotomns astuiiis, natural size, viewed from the side; 9 a 
the same, from above. Page 152. 
Fig. 10. niihcMlMS, left maudibular ramus, viewed from the inner side, natural size; 10a, from 
above. Page 150. 
Fig. 11. Htjopsodus miliculus, right mandibular ramus, natural size, viewed from the inner side; 11a, from 
above. 
Fig. 12. Eyopsodun witiculus, right mandibular ramus, the outer side ; 12a, from above. 
Fig. 13, Hyopsodus ?, superior molar teeth, viewed from below, natural size; 13a, the same, twice the nat¬ 
ural size ; 13&, the same, natural size, viewed from the outer side. 
Fig. 14. Hyopsodus ?, portion of maxillary bone with supierior molar teeth, natural size, viewed from below; 
14a, the same, twice natural size. 
Fig. 15. /Sarcolmw weatalis, fragment of right mandibular ramus, viewed from the outer side; 15a, from 
above; both natural size. Page 149. 
FiG.lt). iSarcoZcHiHr crass«.s, fragment of right mandibular ramus, viewed from the outer side, natural 
size; ICa, the same,from above. Page 149. 
I’lG. 17. Fanloksles c7(a(;ew6is, right mandibular ramus, from the inner side, natural size; 17a, from above. 
Page 141). 
Fig. 18. Jp/iehscHs iasidtosMS, right ramus of the mandible, from the inner side, and, 18a, from the outer 
side, natural size ; 18i!), the same, from above, twice natural size. Page 147. 
I'hG. 19. Hiacodon alliaispis, right mandibular ramus, natural size, from the outer side ; 19a, h, and c, twice 
natural size: a, from above; 1), from outer side ; and, c, fiom the inner side. Pago 132. 
Fig. 20. Diacodon celatus, left ramus of mandible, natural size, from the outer side; 20&, the same, twice 
natural size, from the outer side. Page 133. 
