SUPPLEMENT. 



261 



notch very shallow, and pubic process deflected ; interval between 

 pre- and postacetabular notches short. Sacral vertebras with 

 rounded haemal surfaces and anchylosed together. Femur with 

 'crested' inner trochanter placed lower down than in 1. mantelli. 



With the exception of its long preacetabular process, the contour 

 of the ilium approximates to that of the type species of Camptosaurus 

 (supra, i. p. 192). 



Hob. Europe (England). 



R. 1635. The nearly entire left ilium ; from the Wadhurst Clay of 

 (Fig.) Shornden, near Hastings, Sussex. The type specimen; 

 noticed by the writer in the Geol. Mag. dec. iii. vol. vi. 

 p. 354, and figured in the ' Quart. Journ. Geol. Soc' vol. 

 xlvi. p. 37, fig. 1 C. The preacetabular process has been 

 broken, and the greater portion of the pubic process is 

 wanting. The portion remaining shows, however, that 

 the latter was deflected, as in Camptosaurus. The ilium 

 is proportionately deeper and more concave externally 

 than in I. dawsoni, while the ischial attachment is less 

 defined. This specimen was obtained at a higher horizon 

 than the types of /. dawsoni, which also came from the 

 same quarry. Dawson Collection. Purchased, 1889. 



R. 1635 a. The proximal extremity of the left ischium, apparently 

 belonging to the same individual as the ilium. This spe- 

 cimen was found in the same stratum at a distance of 25 

 yards westward of the spot where the ilium lay l . It is 

 of the same form as the ischium of I. hollingtoniensis. 



Dawson Collection. 



R. 1635 b. The imperfect sacrum, apparently belonging to the same 

 individual as the preceding. The vertebras, although 

 larger, are of the same form as in the sacrum referred to 

 I. mantelli (No. 37685, supra, i. p. 220). This specimen 

 was found 25 yards westward of the ischium, or 50 yards 

 from the ilium. Daiuson Collection. 



R. 1635 C. The centrum of a caudal vertebra, found with the ischium. 



Dawson Collection. 



R. 1635 d. Three imperfect and much worn upper teeth found in the 

 neighbourhood of the type ilium. Daiuson Collection. 



1 Associated specimens are often found far apart in these deposits ; thus the 

 two metatarsals of Mcgalosaicrus dunJccrl (p. 245) layabout ISO yards from one 

 another. 



