38 



Ghelonia. 



See also 

 GaUery XI, 

 Wall-cases, 

 Nos. 12 and 

 18. 



Narrow 

 Gallery V. 

 Tortoises 

 and Turtles 



Wall-cases, 

 Nos. 11 and 

 12. 



Table-cases, 

 Nos. 19, 20, 

 21. 



regards individuals and species, and also in tlie most perfect 

 preservation, in the Lias formation. Geographically, they 

 enjoyed an exceedingly wide range of distribution, their remains 

 having been discovered in the Arctic regions, in Europe, India, 

 Ceram, North America, the East Coast of Africa, Australia, and 

 New Zealand. Nearly entire skeletons of both young and 

 adult animals have been obtained from beds of Liassic age with 

 but few of the bones displaced, as may be seen by many 

 specimens in the Wall-case. 



Order VIII.— CHELONIA (Tortoises and Turtles). 



The Chelonia are exhibited in two wall-cases and three 

 table-cases placed in the West Corridor (No. 5 on Plan), which 

 connects the Mammalian with the Reptilian Galleries. 



A. 



Fig. 47. — a. Carapace of Trionyx Gei-gensi (Meyer), from the Lower Miocene of the Mayenc* 

 Basin, i uat. size ; nu, nuchal ; ei to cS, ccstals ; vil to «7, neurals. b. The fourth right 

 costal plate with the sculpture drawn oc a larger scale. 



