1^70 
TEllTIAKY VEKTEIiHATA OF THE FATtM. 
R. 3325. Posterior portion of skull. The dimensions (in centimetres) of this specimen are : — 
Width between outer angle.s of quadrates 28‘5 
„ of foramen magnum 3 
,, of skull-roof 18 
„ of supratemporal fossa 6'1 
„ of interorbital bar 3-9 
Presented ht/ the JC(jyptiati Government, 1904. 
R. S108. I’ortion of hinder part of skull of a rather larger individual. 
Freserded hi/ IP. Pd. de W'lnton, Esq., lOOi). 
R. 3109. Portion of rostrum. 
Presented hy IP. Pd. de Winton, Esq., 1903. 
'file following specimens from the Fluvio-marine beds may also belong to this species : — 
R. 3342. Anterior dorsal vertebra. 
R. 3343. Scute. Differs from th(> scutes from the Qasr-el-Sagha series referred to T. africanum in 
having a slight median carina. 
R.3341. Proximal half of a left scapula, closely .similar to that of T. schlegeli. 
R. 3107. Portion of right ischium. Presented hy TP. E. de Winton, Esq., lOOib 
Tomistoma africanum, Andrews. 
[Plate XXIll. tigs. 1,2; text-tig. 86. J 
1901. Tomistoma africanum, C. W. Andrews, Geol. Mag. [4] vol. viii. p. 443. 
Type Specimen . — nearly complete mandible, from wdiicli the teeth are missing 
(PI. XXIII. tig. 1) ; Geological Miisenra, Cairo. 
d'he mandible u])on wdiich this species is founded is that of a very long- and 
slender-snouted Crocodile, the total length of the specimen being just over a tnctre 
(lOG cm.). The sympliysial region is long and narrow, and extends back to the 
fourteenth alveolus; tin' splenial enters into its formation, extending forwards to 
about the tenth alveolus. 
P\)rm. cf* Loc. — Qasr-el-8agha beds (Middle Eocene): north of Ihrket-el-Qurnn. 
Anteriorly the jaw is very slender, but behind the last alveolus it deepens con- 
siderably ajid the lateral opening (PI. XXIII. tigs. I a, 1 b) is as large as in the recent 
Tomistoma, and considerably larger than in Gharialis. 'I'lie sutures between the bones 
enclosing the opening are not to be made out. Tlie ridge forming the sliclf-like border 
of the inner side of the angular bone seems to bo continued up to the ])osterior angle of 
the lateral opening. The articular bone [art.) is ])roduced u[)wards and backwai'ds into 
a very long and narrow ])roccss, considerably longer than in tlie recent species of Tomi- 
sfoma or in the Ga\ial. Tlie articular surface for the (piadrate is simply concave from 
before backwards, and not divided by a ridge into a smaller inner and a larger outer 
