FOSSIL REPTILES. 625 



teeth wliicli pass to tlie outside between the premaxillaiy and 

 maxillaiy teeth. 



The palate of OrnitJiosuchi(.s is well preserved but not com- 

 pletely displayed in front. The restoration of it which I give is 

 hypothetical only in the prevomerine region and in the basi- 

 occipital. The pterygoids are large, as are also the palatines 

 and ectopterygoids, and these three bones of the two sides foi'm a. 

 large vaulted bony roof to the mouth. On each side there is a 

 pair of oval openings — one between the palatine, the ectopterygoid, 

 and the pterygoid, and the other between the pteiygoid and the 

 palatine. This latter is regarded by ISTewton as the posterior 

 nares. In this, I think, he is in error. The opening has the 

 borders quite flat, and was probably covered by membiune in life 

 and did not transmit any structure of importance. The pteiy- 

 goid sends forward a long slender process along the innei- side of 

 the palatine which doubtless meets the prevomer as suggested 

 in the figure. 



The shoulder-girdle and anterior limb, though lost from the 

 type, are fairly well preserved in the second specimen. The 

 scapula differs from that of Euparl^eria in being veiy narrow in 

 the middle and much more expanded at the base. It is much 

 more Dinosaurian in appearance. The coracoid has a rather 

 small foramen, and the posterior border below the glenoid cavity 

 is deeply notched. The interclavicle is narrow and not expanded' 

 in front apparently. The clavicles are also slender. 



The humerus measures 57"5 mm. in length. There is a well- 

 developed deltopectoral crest, and the general appearance of the 

 bone suggests a comparison with that of the Theropoda. The 

 radius and ulna are not very well preserved. The former 

 measures 47 mm. and the latter 49 mm. Only a few bones of the 

 manus are preserved, and these are apparently displaced. A 

 cast of a specimen obtained by Mr. Watson shows rather more 

 of the manus. There are pretty certainly three well-developed 

 digits, and, I think, evidence of a fourth. The carpus is badly 

 preserved : possibly it was imperfectly ossified. 



I have given a restoration of the pelvis for most of which, 

 I think, there is clear evidence in the specimen. The pubis is 

 essentially similar to that of Euparl:eria, but much more elongated. 

 It has a large single pubic foramen. There is evidently a com- 

 plete symphysis. 



The bones of the hind foot of the type, though much displaced, 

 have been separated out and identified by ISTewton with marvellous 

 care, and the foot is seen to resemble that of Eiqxirl-eria pretty 

 closely, the main difference being that the fifth metatarsal shows 

 less of the peculiar Rhynchocephalian development, and the 

 phalanges of this, too, are feebler. 



Ornithosuchus taylori, sp. n, (PL LXXYII. fig. 11.) 

 In 1904, Mr. G. A. Boulenger described some rather badly 

 preserved reptilian remains from Elgin as a large example 

 of Or)}ithosvchiis iroorhcardt. Mr. Taylor, when sending the 



