186 MIOCENE VERTEBRATES FROM EAST AFRICA. [June I914, 



EXPLANATION OF PLATES XXVII-XXIX. 



[All the specimens are in the British Museum (Natural History).] 



Plate XXVII. 



Fig. 1. Carapace of Cycloderma victorias, sp. nov., type-specimen; a quarter 

 of the natural size. (See p. 183.) 



2. Sculpture of neural bone of Cycloderma victorias ; natural size. 



3. Sculpture of costal bone of Cycloderma victorise ; natural size. 



4. Imperfect plastron of Testudo crassa, sp. nov., type-specimen ; a fifth 



of the natural size. (See p. 180.) 



abd., abdominal shield; Ent., entoplastral bone; Epi., epiplastral bone; 

 0., gular shield ; hum., humeral shield ; Hyo., hyoplastral bone ; Hyp., hypo- 

 plastral bone ; Nu., nuchal bone ; pect., pectoral shield ; Pyg., pygal bone. 



Plate XXVIII. 



Fig. 1. Eight lower first molar of Dinotlierium hobleyi Andrews ; two-thirds- 

 of the natural size. (See p. 165.) 



2. Eight upper premolar of the same ; two-thirds of the natural size. 



3. Third right upper molar of a Ehinoceros ; two- thirds of the natural 



size. (See p. 176.) 

 Figs. 4 a & 4 b. Portion of left ramus of mandible of Myoliyrax osicaldi, gen. 



et sp. nov., type-specimen ; four times the natural size. Fig. 4 a. 



Crown view of teeth. Fig. 4 b. From the inner side. (See p. 169.) 

 Figs. 5 & 5 a. ? Third lower molar of the same ; four times the natural 



size. Fig. 5. Crown view. Fig. 5 a. From the side. (See p. 170.) 

 Figs. 6a & 6b. Upper molar of the same ; four times the natural size. 



Fig. 6 a. Crown view. Fig. 6 b. From the front. (See p. 170.) 

 Fig. 7. Left ramus of mandible of Paraphiomys pigotti, gen. et sp. nov., 



with pm i -m 2 , type- specimen ; crown view of teeth. Four times 



the natural size. (See p. 177.) 

 8. Tooth of a Crocodile (Pristichampsa ?). (See p. 185.) 



Plate XXIX. 



Figs. 1 a & lb. Portion of a mandibular ramus of Pseudselurus (?) africanus, 



sp. nov., type-specimen ; natural size. Fig. 1 a. From above. 



Fig. 1 b. From the inner side. (See p. 178.) 

 Fig. 2. Left astragalus of a (P) Creodont, from below; two-thirds of the 



natural size, ect., ectal facet ; /., perforation in astragalus ; st*s., 



sustentacular facet. (See p. 179.) 

 Figs. 3 a & 3 b. Portion of left ramus of mandible, with m 3 , of (?) Merycops 



africanus, sp. nov., type-specimen ; natural size. Fig. 3 a. From 



above. Fig. 3 b. From the inner side. (See p. 171.) 

 Figs. 4 a & 4 b. Lower canine tusk of (?) the same ; two-thirds of the natural 



size. Fig. 4 a. From the side. Fig. 4 0. From above. (See p. 172.) 



