204 
TERTIARY VEKTEBRATA OE THE FAYt^M. 
C. 10036. Aiii(>ri()r portion of skull. Type s])(^cimon, floured on PL XXIT. figs. 1, 1 a, 1b. 
TIk! dimensions (in c('nf iinoircs) of this specinum are : — 
IXtreine lengtii of specimen so far as preserved 43 
Distance from anterior angle of orbit to tip of snout ... 37 
Widtli of skidl at tlie level of the anterior angle of the orbits. 14 
„ snout at narrowest 4'8 
,, premaxillary expansion 5-5 
„ nasal openiTig 2'7 
Ijcngth of nasal opening 3'3 
Distance from anterior end of palatine fossa to tip of snout . 28'2 
R. 3322. Plaster cast of the above specimen. Made in the British Museum. 
R. 3106. Anterior portion of snout of a larger individual. 
I’resented hy TP. E. de Wmto7i, Esq., 1903. 
C. 10065. Nearly complete mandible. Figured on PI. XXII. figs. 2, 2 A. The dimensions (in centi- 
metres) of this specimen are : — 
Extreme length 
Length of symphysis 
AVidtli of symphysis at widest . . 
Greatest depth of ramus 
AVidth of articular surface for quadrate 
55'8 
10-8 
8 app, 
S 
R. 3323. Plaster cast of tin* above S{)ecimen. Made in the British Jifuseitm. 
R 3324. Symjdivsial portion of mandible of a rather large individual. Length of the symphysis 
13'4 cm. Presented In/ the Egyptian Government, 1904. 
R. 3105. tSymphysial region of left ramus of mandible of a large individual. 
Presented hy IP. E. de Winton, Esq., 1903. 
Crocodilus megarliinus, Andrews. 
[Text-fig. 85.] 
190.J. Crocodilus megatdtinus, C. AV. Andrews, Geol. Mag. [5] vol. ii. p. 482. 
Type Specimen . — The anterior portion of a large sknll (figured in text-fig. 86) ; 
British Museum. 
In this species the premaxillary region is considerably expanded, though longer in 
proportion to its width than in C. porosiis \ the facial process of the premaxilla extends 
back to behind the fourth maxillary tooth. Five premaxillary teeth, behind the last a 
deep notch for the lower tooth. 
Form. & Loc. — Flnvio-marine beds (U[)per Eocene) : north of Birket-el-durnn. 
Itemains of a broad-snouted Crocodile, which attained very large dimensions, are 
found in the U])per Eocene beds. The most satisfact<jry s])ccimen (text-fig. 85), which 
has been taken as tlie type of the species, is the anterior portion of a snout. In this 
the premaxillary region is considerably expanded, but is longer in })roportion to its 
