60 CROCODILIA. 



Crocodilus spenceri, Buckland '. 



Syn. Crocodilus toliapicus, Owen 2 . 



Crocodilus champsoides, Owen 3 . 

 Crocodilus arduini, Zigno 4 . 



Teeth |^| ; the nasals reaching the nares 5 . 



It has been shown by the writer in the ' Geol. Mag.' dec. 3, 

 vol. iv. p. 310, that C. toliapicus and C. champsoides are apparently 

 founded upon old and young individuals of a single species, the 

 greater breadth of the facial part of the skull in the adult being 

 precisely analogous to that obtaining in the existing C. intermedins b . 

 The so-called C. arduini from the Nummulitics of Verona is indis- 

 tinguishable from the English form. 



Hah. Europe (England and Italy). 



Ml the following specimens are from the London Clay of the 

 Isle of Sheppey, Kent. 



19633. The hinder part of the cranium of an immature individual. 



{Fig.) This specimen is the type, and is figured by Buckland in 

 his ' Geology and Mineralogy,' pi. xxv. fig. 1 ; and also by 

 Owen in his ' Eeptilia of the London Clay,' pt. ii. pi. ii. 

 fig. 2 (as C. champsoides). Purchased. 



38975. The cranium of an immature individual. Figured by Owen, 



{Fig.) op. cit. pi. iii., under the name of C. champsoides, of which 



it is the type. A restored figure is given in woodcut, 



fig. 9. Bowerbank Collection. Purchased, 1865. 



37717. The hinder part of the cranium of an immature individual. 



Purchased, 1863. 



R. 41. The imperfect hinder portion of the cranium of an immature 

 individual. /Shrubsole Collection. Purchased. 1880. 



38990-1. The two angular and articular portions of the mandible. 



Bowerbank Collection. 



1 Geology and Mineralogy (Bridgewater Treatise), 1st ed. pi. xxv. fig. 1 

 (1837). 



2 Reptilia of London Clay (Mon. Pal. Soc), pt. ii. p. 29 (1850). 



3 Ibid. p. 31. 



4 Mem. Ac. R. Line. ser. 3, vol. v. p. 67 (1880). 



5 In both C. cataphractus (see ' Falconer's Palceontological Memoirs,' vol. ii. 

 pi. xxxviii. fig. 1) and C. intermedins, (see Liitken, ' Vid. Medd. Nat. Foren. 

 Kjobenhavn,' 1884, pi. v.) the nasals do not reach the nares. 



" Compare the three crania figured by Liitken, loc. cit. 



