METEIOEHTNCHUS SUPEECILIOSUM. 181 



(1867), pp 306-319, where the history of the name will be found — he takes as the 

 type the specimen in the Museum at Caen, to which cle Blainville applied the name. 



In this species the snout is elongated and is strongly convex from side to side ; its 

 width remains the same as far back as the point of the nasals, where it widens out to 

 the orbits ; the nasals are strongly convex posteriorly in the uncrushed skull, and are 

 separated from the maxilla by a distinct groove. The median suture between them is 

 also at the bottom of a groove in the uncrushed skull. The distance between the 

 anterior points of the nasals and the facial processes of the premaxillse varies, but is 

 more than a third of the length of the nasals. -Prefrontals very large with surface 

 strongly sculptured with irregular pits. Frontal also with a strongly developed 

 sculpture of pits, which tend to be arranged in rows radiating from the commencement 

 of the intertemporal bar; the length of the frontal anterior to the temporal fossse is 

 greater than its width at the narrowest point between the orbits ; there is no trace of 

 any division into two elements. The intertemporal bar is broad in the anterior portion 

 formed by the frontal, but narrows to a thin crest in the parietal region. 



The teeth (PI. IX. tig. 2) are about 28 in number on either side of the upper jaw, 

 there being three in the premaxilla ; the sharp-pointed tooth-crowns are not very 

 much compressed and have anterior and posterior carina? which are not serrated. The 

 enamel is raised into numerous fine discontinuous ridges running towards the point, 

 which is nearly smooth. The ridging on the inner face is more strongly developed 

 than on the outer. The teeth in this species have better-marked sculpture of the 

 enamel than is seen in any other of the long-snouted forms, cf. M. moreli. 



R. 2030. Skull (PI. IX. fig. 1) and mandible, not quite complete and much compressed from 

 above downwards. The palate as usual is destroyed. 



Skull (PI. IX. fig. 1): 



Length in mid-dorsal line 63'4 



„ from occipital condyle to tip of snout 6(r0 



,, of nasals 21*3 



Distance between nasals and premaxillae 9 - 



Least width between orbits 8-1 



"Width between outer angles of prefrontals . . (approx.) 150 



,, „ „ „ frontal 12-7 



„ „ ,, ,, quadrates 18 - 5 



Width of premaxillary region 5 - 2 



Mandible : length (approx.) 72*0 



length of symphysis 305 



depth at coronoid angle (approx.) 7"0 



B,. 2051 (Leeds Coll. 30). A nearly complete skull and mandible, the former much crushed from 

 above downwards ; odontoid, axis and four other cervical vertebrae, fifteen dorsals, two 

 sacrals, tliirty-two caudals ; ribs; shoulder-girdle (text-fig. 69, A), wanting half 

 one scapula, pelvic girdle, femora, portions of tibire and fibulas, and numerous bones of 



