PLATE XVIII. 
Mg. Page 
1. Ancodoti gorrhigei, Andrews & Beadiiell ; mandible, upper and (1 .\) side 
views: three-fourths nat. size. Fluvio-marine beds (Upper Eocene). 
[Type specimen, C, 8629.] 179 
2. Ditto ; riglit lower molars (m. 2, m. 3), crown view : three-fourths nat. size. 
Satue horizon. [M, 8428.] 182 
3. l)itt(^ ; right upper cheek-teeth, crown view : three-fourths nat. size. Same 
horizon. [M, 8425.] 181 
4. Plnomia serridens, Andrews &; Beadnell ; anterior portion of left ramus of 
mandible, side and (4 a) upper views: three-fourths nat. size. Same 
horizon. specimen, C. 10007.] 170 
5. lihagatherinm ieggptiacum, sp. nov. ; left upper molar, crown view: three- 
fourths nat. size. Same horizon. [iype specimen, M. 8449.] 192 
f., alveolus of canine. 
com}., condyle of mandible. 
cor., coronoid process. 
i. 1-3, incisors or their alveoli. 
m. 1-3, molars. 
j)ni. 1-4, premolars. 
syoi., symphysis of mandible. 
