8 bulletin: museum of comparative zoology. 



CHELONIA. 



DERMOCHELIDAB. 

 Dermochelys schlegelii. 



Tkunk or Leather Back. 



Sphargis mercurialis Temm. & Schl., Fauna Jap. Kept., 1838, p. 10. 

 Sphargis schlegelii Garman, Bull. 26 U. S. Mus., 1884, 292, 303. 



This species ranges from Japan southward in the Pacific and the Indian 

 oceans. Sphargis angustata Philippi may on comparison prove to belong to this 

 species; it is more likely to be thus thau that the Atlantic species should pass the 

 straits of Magellan. 



CHBLONIIDAE. 

 Caretta olivacea. 



LoGfiERHEAD. 



Chelonia olivacea Eschscholtz, 'ocil. Atlas, 1829, pt. 1, p. 3, pi. 3. 

 Caretta olivacea Stejneger, Bull. 58, U. S. Mus., 1907, 507. 



Localities given for this species are Japan, China, Bonin Islands, Philippines, 

 Bismarck Archipelago, Calcutta, Indian Ocean, Malabar, and East Africa. This 

 is one of the most variable of the marine tortoises. Of five specimens before 

 me two have six costal shields on each side, one has five on one side and six on 

 the other, two have six on one side and seven on the other. Of the same indi- 

 viduals three have two pairs of prefrontals each, and two have each two pairs of 

 prefrontals and an azygous shield in the same area. The specimen having six 

 costal shields on one side and seven on the other agrees in the same respects with 

 that figured by Eschscholtz ; none of these individuals agree with it in either 

 shapes or numbers of prefrontals. In the same lot the dorsal shields number 

 from six to eight. 



Chelonia japonica- 



Green Tortoise. 



Testudo japonica Thunberg, Svensk. Vet. Ac. Nya Hand., 1787, vol. 8, 178, pi. 7, 

 fig. 1. 



Chelonia japonica Schweigger, Prodr. Mod. Chelon., 1814, 21. 



Reported from Japan, Bonin Islands, Formosa, New Guinea, Moluccas, Malay 

 Peninsula, Penang, Bengal, India, and Indian Ocean. 



