264 TEKTIAET VEETEBEATA OF THE FATtM. 



C. 10036. Anterior portion of skull. Type specimen, figured on PI. XXII. figs. 1, 1 A, 1 B. 

 The dimensions (in centimetres) of this specimen are : — 



Extreme length of specimen so far as preserved 43 



Distance from anterior angle of orbit to tip of snout ... 37 



Width of skull at the level of the anterior angle of the orbits . 14 



„ snout at narrowest 4*8 



,, premaxillary expansion 5-5 



„ nasal opening 2*7 



Length 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. 



Presented hy W. E. de Winton, 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 55'8 



Length of symphysis 10-8 



Width of symphysis at widest .... 8 app. 



Greatest depth of ramus 8 



Width of articular surface for quadrate 5 



R. 3323. Plaster cast of the above specimen. Made in the British Museum. 



R. 3324. Symphysial portion of mandible of a rather large individual. Length of the symphysis 

 13"4 cm. Presented hy the Egyptian Governm.ent, 1904. 



B. 3105. Symphysial region of left ramus of mandible of a large individual. 



Presented hy W. E. de Winton, Esq., 1903. 



Crocodilus megarhinus, Andrews. 



[Text-fig. 85.J 

 1905. Crocodilus megarhinus, C. W. Andrews, Geol. Mag. [5] vol. ii. p. 482. 



Type Specimen. — The anterior portion of a large skull (figured in text-fig. 85) ; 

 British Museum. 



In this species the premaxillary region is considerably expanded, though longer in 

 proportion to its width than in C. porosus ; 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. & Log. — Fluvio-marine beds (Upper Jlocene) : north of Birket-el-Qurun. 



Remains of a broad-snouted Crocodile, which attained very large dimensions, are 

 found in the Upper Eocene beds. The most satisfactory specimen (text-fig. 85), which 

 has been taken as the type of the species, is the anterior portion of a snout. In this 

 the premaxillary region is considerably expanded, but is longer in proportion to its 



