•270 
TEETIAJiT VEETEBEATA OF THE FAYtM. 
R. 3325. Posterior portion ol' skull. Tlie cliinensions (in centimetres) of tins specimen are : — 
Width between outer angles of quadrates 28‘5 
„ of foramen magnum 3 
,, of skull-roof 18 
,, of supratemporal fossa 6T 
,, of iuterorbital bar 3-9 
Presented hij the Egujdian Government, 1904. 
R. 2108. Portion of hinder part of skull of a rather larger individual. 
Presented \nj IP. 7?. de Whiton, Psq., 1903. 
R. 3109. Portion of rostrum. 
Presented hy TP. 77. de Wintoti, Esq., 1903. 
The following s])ecimens from the Fluvio-marine beds may also belong to this species : — 
R. 3342. Anterior dor.sal vertebra. 
R. 3343. 8cute. Differs from the scutes from the Qasr-el-Sagha series referred to T. africanum iu 
havino; a slinht median carina. 
R.3341. Proximal half of a left scapula, closely similar to that of T. schleyeli. 
R. 3107. Portion of right ischium. Presented hy TP. 77. de Winton, Esq., 1903. 
Tomistoma africanum, Andrews. 
[Plate XXIII. tigs. 1,2; text-fig. 86. j 
1901. Tomistoma africamim, (7. W. Andrews, Geol. Mag. [4] vol. viii. p. 443. 
Type Specimen . — A nearly complete mandible, from which the teeth are missing 
(PI. XXIII. fig. 1) ; Geological Museum, Cairo. 
The mandible upon 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 metre 
(lOG cm.). The symphysial region is long and narrow, and extends back to tlie 
fourteenth alveolus; the splenial enters into its formation, extending foixvards to 
about the tenth alveolus. 
Form. & Loc.- — Qasr-el-Sagha beds (Middle Eocene) : north of Birket-el-Quruu. 
Anteriorly the jaw is very slender, but behind the last alvf'olus it deepens con- 
siderably and the lateral opening (PI. XXIII. figs. 1 a, 1 b) is as large as in the recent 
Tornutorna, and considerably larger than in Gharialls. The sutures betwmen the bones 
enclosing the opening are not to be made out. The ridge forming the shelf-like border 
of the inner side of the angular bone seems to be continued up to the jiosterior angle of 
the lateral opening. The articular bone {(trt.) is produced upwmrds and backwards into 
a very long and narrow process, considerably longer than in the recent sj)ecies of Tomi- 
Homa or in the Gavial. The articular surface for the quadrate is simply concave from 
before backwards, and not divided by a ridge into a smaller inner and a larger outer 
