236 OARETTOCHELTDIDiE. 



Fam. 10. CARETTOCHELYDID^. 



Carettoclieljdidie, Boidenger, An7i. ^- May. 11. H. (5) xix. 1887, 

 p. 171. 



Shell -without epidermal shields. Plastron composed of nine 

 bones. Limbs ])addle-shaped ; digits much elongate, only the two 

 inner claM'ed. Neck not retractile. 



A single genus and species, -which is stiU very imperfectly kno-vvn. 



1. CARETTOCHELYS. 



Carettochelys, Ramsay, Proc. Linn. Soc. N.S. W. (2) i. p. 158 (1886). 



Six neural plates, all separated from one another by the costals, 

 -svhich meet on the median line. 

 Ne-w Guinea. 



1. Carettoctelys insculpta. 



Carettochelys insculptus, Hamsay, I. c. pis. iii.-vi. 



Carapace subcordiform, elevated and rounded in front, laterally 

 flattened behind and strongly keeled, the sides shelving, -with the 

 marginal plates expanding, densely rugose. 21 marginals (in- 

 cluding the pygo-marginal). The -uhole of the plates of the 

 carapace and plastron are covered with small round raised rugations 

 or -wavy irregular raised lines bet-ween shaUo-w sculptures ; towards 

 the lower borders on the sides these take an elongated form some- 

 times parallel to the sutures. Head large; lower jaw strong; head 

 with five to seven shields, anterior and median pairs coalesced. 

 Anterior margin of fore legs covered with from seven to ten narrow, 

 band-like, unequal shields. Tail short, with from fourteen to 

 sixteen narrow curved shields on the upper surface. 



Length of shell 4G centim. 



Fly lliver. 



