PAL.EOMASTODON MINOK PIIIOMIA . 
1G9 
M. 8479b, Kioht ramus o£ maiulible, imperfect at both ends. Fm. 3, pm, 4, m. 1-3 are present, m. 3 
as an uncut germ; pm.\-m.2 are somewhat imperfect on the inner side. Typo 
specimen descril)ed in Geol. Mag. [5] vol. i. (1904) p. 11.5. Figured on PI. XIV. 
figs. 1, 1 A ; also tlie second and third molars in text-fig. 50, D. The dimensions (in 
centimetres) of the teeth are : — 
Length. Width. 
pm.^ 2 8 1-0 
2-G 2 app. 
m.\ 3'2 2'1 app. 
m. 2 4-5 2‘9 app. 
w. 3 4-8 2-9 
Tlie lengths (in centimetres) of the teeth compared with those of the other species 
are shown in the following table : — 
P. minor. 
P. parvus. 
P. wintoni. 
P. beadnelli. 
2-8 
3-5 app. 
3 
4-1 app. 
2-0 
3-5 app. 
3-5 
4-8 
3-2 
3-8 
4-3 
4-8 
4-5 
4*5 
5-7 
6-5 
4-8 
4-6 
7-3 
7-8 
Length of molar series 
12-6 
13 
17-2 
19-4 
,, premolar series .... 
5-7 
7 app. 
63 
9'2 app 
„ molar and premolar series . 
18 
19-7 
23 
28-5 
Presentpd by W. E. de Winton, Esq., 1903. 
The following specimens may be referred pro\dsionally to this species : — 
C. 8110. Two trilophodont upper molars. These teeth are of the size and type that might be 
expected in the upper jaw of this species. Length 4’5 cm. ; width 3'1 cm. 
M. 8860. Atlas vertebra. 
AVidth of articulation for skull 12-8 cm. 
Genus PHIOMIA, Andrews Beadnell. 
[A Preliminary Note on some new Mammals from the Upper Eocene of Egypt, 
pp. 1-5, figs. 1, 2 (Survey Department, Cairo, 1902).] 
Known only from an imperfect mandibular ramus, in which the single spatulate 
incisor is serrated on its outer margin. 
It was originally suggested that this mandible might represent a very aberrant 
type of Creodont, but this determination is certainly wrong, Schlosser * has 
suggested that the specimen in question is the anterior portion of the mandible of 
a very young Palceornastodon, a supposition which not impossibly may be correct, 
though since this is by no means certain it seems preferable to keep the genus 
Fhiomia for the present and place it in its present position. 
* Neues Jahrb. £. Min. Geol. u. Palaeont. 1905, vol. i. pt. i. (Eeferate) p. 157. 
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