METBIOBHYNCHUS SUPEECILIOSUM. 187 



R. 2065. Portions of skull o£ a very young individual, in which the frontal sculpture is already 

 sharply defined. 



Least width between orbits 4*5 



Width between outer angles of prefrontals 8 - l 



R. 2048 (Leeds Coll. 27). Imperfect skull, probably of this species, with teeth. In this specimen 

 the anterior part of the palate is better preserved than usual. 



R. 2069. Portions of the skull and mandible of a very young individual, with the odontoid 

 and the centra of the axis and three other cervical vertebrse. 



R. 2056 (Leeds Coll. 39). Portions of the skull and mandible of a young individual. 



R. 2036 (Leeds Coll. 24). Portions of skull and mandible with one cervical vertebra. This 

 specimen is notable for the strongly developed pitted sculpture on the frontal and 

 prefrontal. 



Least width between orbits 7"1 



"Width between outer angles of prefrontals 12-5 



Length of frontal anterior to temporal fossa? 9*5 



R. 2058 (Leeds Coll. 41). Skull with anterior portion of mandible. Less crushed than usual, the 

 middle part of the rostrum especially being nearly of its natural shape. One or two 

 sclerotic plates are preserved adhering to the prefrontal. 

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



Length in mid-dorsal line 60-0 



Distance between nasals and premaxillffl 7 - 5 



"Width between orbits 8 - 2 



„ between outer angles of prefrontals . . . (approx.) 13'0 



,, of snout at anterior end of nasals 4'5 



The following specimens may belong to this species : — ■ 



R. 2064. Imperfect atlas and axis, five other cervicals and one dorsal : some of the cervicals have 

 their ribs and neural arches still attached. 



R. 2080. Two anterior dorsals with their centra fused by the development of exostoses. 



R. 2775. Portions of the skeleton of a very young individual. The parts preserved are the 

 odontoid, axis, the centra of four dorsal, two sacral, and three caudal vertebrse, the left 

 ilium, parts of an ischium, and the femora. 

 The length of the femur is about 15'5 cm. 



2b2 



