HEEPETOLOGY OF JAPAN. 



487 



The six longitudinal areas int,o which the carapace is divided by seven bony ridges 

 are apparently of equal breadth — 11 cm. in the middle uf the trunk — gradually narrow- 

 ing towaixl the tail. 



Figs. 374-376.— Dermochelts coRi.\rE.\, young. N.4.T. size. 374, underside of shell: 375, side 

 OF head; 370, underside of he.\d. No. 19796, U.S.N.M. 



There are six rows of scutes half embedded in the thick plastral integument, 

 a double row along the mid-line, with two single row^ aliout 11 cm. apart on either side. 



Dimemsinns. 



mm. 



Total length (following the curve of the carapace) 1, 350 



Length between the bases of the flippers 680 



Girth (under fore limb) 1, 350 



Girth (midway between the limits i 1, 400 



Girth (at base of hind limb) 910 



Length of fore limb from its pt)int of emergence from the body ( fol- 

 lowing the outer curve) 820 



Greatest breadth of hand 200 



Length of hind limb (tibial border) 330 



Girth of head at hinder extremity of the gape 530 



From point of snout to inner canthus of eye 85 



From point of snout to nostril 25 



Habitat. — Tropical seas between the east coast of Africa and the 

 west coast of South America, occasionally straggling farther north. 

 Thus von Siebold obtained the specimen, from which the figure in 

 Fauna Japonica is taken, in Japan. In the Imperial ^luseum, Ueno 

 Park, Tokyo, there is one from the coast of the province of Tango, on 

 the Sea of Japan. A young female was recently acquired by the 

 Royal College of Surgeons, in London, from A. Owston. 



