304 Annals of the South African Museum. 



PALUSTRIS, g. et sp. nov. 



In the collection made by Mr. Walker are the remains of a third 

 species of carnivorous Dinosaur much smaller than either of the 

 other two species, and differing from both considerably in the pro- 

 portions of the limbs. There are preserved the following bones : 

 A few imperfect dorsal vertebras, a good scapula and coracoid, a 

 good humerus, a good radius and imperfect ulna, the greater part 

 of each manus, the upper end of one tibia, and the almost complete 

 right pes. 



The dorsal vertebra agrees in most respects with those of other 

 carnivorous Dinosaurs. The centrum is much flattened and agrees 

 closely with that of Ccelophysis, and apparently with Anchisaurus. 

 It measures in length 45 mm., and in its narrowest middle part 

 11 mm. across. The greatest depth of the articular end is 30 mm. 

 The length from the one zygapophysis to the other is about 57 mm., 

 and the measurement from the one transverse process to the other 

 about 37 mm. 



The scapula is well preserved, only a very little being lost from 

 its upper end. In general shape the bone resembles that of Masso- 

 spondylus more than that of any other known type. The lower end 

 is very broad, being nearly three times as broad as the middle of the 

 bone is narrow. As preserved the scapula measures 185 mm. in 

 length, and possibly originally measured 210 mm. The width of the 

 narrowest part of the bone is 30 mm. and the width of the lower end 

 87 mm. 



The coracoid is almost perfect. It measures antero-pos- 

 teriorly 102 mm. and in depth at the region of the foramen 

 58 mm. 



The humerus is perfect except for a small fragment missing from 

 both ends. It agrees pretty closely with the Plateosaurian type, 

 but has the part below the delto-pectoral crest relatively rather 

 shorter. The greatest length of the humerus is 174 mm. From the 

 lower end of the delto-pectoral ridge to the upper end of the bone 

 is 101 mm. The width of the lower end is 57 mm. 



The radius and ulna are relatively very short. The radius 

 measures only 96 mm. in greatest length. 



The first distal carpal measures 28 mm. by 19 mm. and is 

 9 mm. thick. What are probably the 2nd and 3rd carpals are 

 preserved, but as they are not in position the identification is 

 doubtful. 



The manus is fully preserved with the exception of the 3rd meta- 



