‘ 
HY HNODONTID®. 29 
difference in the size of this specimen and the larger 
specimens described by Filhol in the Ann. Sci. Géol. 
vol. vii. art. 4, pp. 200-214, viz. :— 
Upper teeth : ie BENE, Filhol. 
Mesatvet pm. Lie aecd en ce = 0,0065 0,0066 
Height atl aac eh tamer Seta ae aac ia, ER Suck 0,004 0,0069 
Interval between pm. 1 and pm. 2.... 0,006 0,002 
MEMesel Gk PHP Aah cok ect ot 0,009 0,0095 
Height th ak ey AE Ae a TR Re 0,005 0,009 
Merwe Ol PM s)6 0. cis oe asl 8 oes s 0,011 0,01 
Height Se are oe tS eed OO PE 0,005 0,0089 
Menem of pais 24 i. 2/5 PSST ee. 0,009 0,0096 
Height SME ac Ma a aio t's eS g 0,006 0,009 
TUGILE LOU Si A a re 0,006 0,009 
Height 25) 1 aati, 4: eile SNe in ma 0,003 0,007 
Interval between canine andm.1.... 0,0475 0,037 
Lower teeth: 
Benet Gf pm. 4... i see eee eee es 0,015 0,009 
Height Pak Nea MED Sok 335 8 rep ees hat 0,008 0,0096 
SGC TD CATS Se eng aoe a ee 0,006 0,0065 
Height 2 iy Lins ete ale ARR a SPS 0,004 0,0065 
= SSUID 0) 5 ae ee 0,008 0,0085 
Height Ree RUG a ae ae 0,006 0,0073 
M. 1678. 
M. 1679. 
M. 1680. 
Purchased, 1859. 
Fragment of the right maxilla, containing the third 
and fourth premolars and the two true molars; from the 
Upper Eocene of Bach. This specimen, with the excep- 
tion of being slightly smaller, is very similar to the corre- 
sponding portion of a cranium figured by Filhol in the 
Ann. Sci. Géol. vol. vii. pl. xxxiv. fig. 170; but the last 
premolar is relatively smaller. Purchased, 1884. 
Fragment of the right maxilla, containing the four pre- 
molars and the alveolus of the canine; from the Upper 
Eocene of Bach. This specimen is of the same size as the 
last, but corresponds otherwise to the cranium figured by 
Filhol (loc. ct.). Purchased, 1884. 
The symphysis and part of the left ramus of the mandible, 
showing the premolars and the first true molar; from the 
Upper Eocene of Bach. This specimen is rather larger 
