PLATE X X I V e . 



Fig. 1. — Cranium of Anaptomorphits homi(nculus. From above, uatural size ; «, the same from lielo\v, one- 

 half hirger than natnre; h, tlic same, h'ft side, natuia; si^e. Pa^e 'iVJ. 

 Fig. 2. — CijnodoHtomya lalidcns. Left maii<liliular ramus, uatural size; o, both rami from below. 



Page 24A. 

 Fig. 3. — Chriacus pehidens. Natural size, left inferior dental series, from above. Page 225. 

 Fig. 4.— C/iHa«;« angulatus. Right nianflible, natural size; a, inner side; b, superior view, one-half 



larger than nature. Page 2:U. 

 Fig. 5. — Pantohitcs chacoisis. Right mandibular ramus, inner side; a, superior view of the same, from 



the Cig Horn Basin. P.age 71<). 

 Fig. 0. — 1'aiitotentcn metniaciis. Left ujandibular ramus, inner .side; a, superior view. P.age T24. 

 Fig. 7,—J'anlulesli's iiuptiia. Fragment of right mandibular ramus, internal view ; n, superior view of 



the same, one-half larger than nature. Pag<! 72it. 

 Fig. H.—Ui/opgodiis lemohnanu8. Right mandibular ramus, natural size, external view. Page 23U. 

 Fig. 9. — //. htnoimuuiiK. Left mandibular ramus, internal vicAv, natural size; a, the same from above. 



Page 236. 

 Fig. 10. — Didjjmictis cm-lideiis. Left mandible, natural size, external view ; a, superior Ti( w. Page 313 

 Fig. n. — DidymictU masseteiiciw. Left mandibular ramus, natural size, external side ; «, internal side : 



b, from above. Page 312. 

 Fig. 12. — Miacis brevirostris. Left mandibular ramus. From the Big Horn Basin ; uatural size, external 



side ; a, internal side ; b, from above. Page 303. 

 Fig. 13. — Uiddphodm ahsamkne. Anterior part of cranium with teeth, from below, natural size; a, 



mandible, with both rami, from left side. Page 2d4. 

 Figs. 14-19. — Parts of one skeleton of Mesonyx ossifragus. From the Big Horn Basin, natural size. 



Page 362. 

 Fig. 14. — Axis without arch, right si<U-. 

 Fig. 1"). — Metacarpal; lateral, n, ])roximal views. 

 Fig. 10. — Distal end of metapodial, from the front. 

 Fig. 17. — Proximal ph.alange, from above ; «, proximal end. 

 Figs. 18,19. — Ungual phalanges; a, above; b, below; c, proximal ends. 

 Figs. 20-22.— Teeth cf supposed young of Calamodon ainqyJex. From the Big Horn. 

 Fig. 20.— Canine tooth, external view. 

 Figs. 21,02. — Molar teetli, lateral and superior views; a, superior view. 



