HERPETOLOGY OF JAPAN, 509 



Bonin Islands, and Professor Mitsukuri collected a large number of 

 eggs at Sagara, province of Totonii, for embr3^ological studies. Dr. 

 S. Nozawa writes me that the Pacific loggerhead occasionally strag- 

 gles "to Yezo. 



Genus CHELONIA« Latreille. 



1800. C'helonia Brongniart, Bull. Soc. Philom. Paris, II. p. 89 (nomen nucimn). 

 1802. Chelonia Latreille, Hist. Nal. Rept., I, p. 22 (type, C. mydas). 

 1806. Chelone Brongniart, Mem. Sav. Strang. , I, p. 610 (emendation). 

 1814. Chelonias RafinesqIje, Specchio Sci. (Palermo), II, No. 9, 1 Sett., 1814, 



p. 66 (emendation). 

 1838. Mydas Cocteau in Sagra's Hist. Fis. Pol. Nat. Cuba, IV, Rept., p. 22 (type 



C. mydas) (not of Fabricius, 1799). 

 1843. Mydasea Gervais, Diet. d'Hist. Nat., Ill, p. 457 (same type). 

 1845. Euchelonia Tschudi, Fauna Peruana (p. 22) (same type). 

 1848. Megemys Gistel, Naturg. Thier., p. A'iii (substitute for Chelonia). 

 1858. Euchelys Girard, Herpet. U. S. Expl. Exped., p. 447 (type, E. viacropus). 



CHELONIA JAPONICA iThunberg). 

 ARAUMIGAME. 



1787. Testudo japonica Thunberg. Svensk. Vetensk. Acad. Nya Handl., VIII, 

 p. 178, pi. VII, fig. 1 (Japan). — Chelonia japonica Schweigger, Prodr. 

 Mon. Chelon., 1814, p. 21. 



1814. Chelonia virgata Schweigger, Prodr. Mon. Chelon., p. 21 (seas of the Torrid 

 Zone). — DuMERiL, Cat. Meth. Rejjt. Mus. Paris, I, 1851, p. 24 (Indian 

 Ocean; New Guinea).— Swinhoe, Ann. Mag. Nat. Hist. (3), XII, 1863, 

 p. 221 (Formosa). — Guenther, Rept. Brit. India, 1864, p. 53 (Formosa). — ■ 

 Garman, Bull. U. S. Nat. Mus., No. 25, 1884, p. 302 (tropical portions 

 of Western Pacific and Indian oceans). 



1820. Carretta thunbergii Merrem, Syst. Amph., p. 19. 



1831. Chelonia mydas Z japonica Gray, Synops. Re^jt., I, p. 53 (Japan). 



1835. Chelonia viridis Temminck and Schlegel, Fauna Jajion.. Rept. (part; not 

 of Schneider), p. 18 (part; Indian Archipelago to Japan), p. 139 (Japan); 

 pi. IV, figs. 4, 5, 6 (Indian Ocean), pi. vi. figs. 1. 2 (Moluccas). — Namiye, 

 Cat. Spec. Vert. Educ. Mus. Tokyo, 1881, p. 84 (Ogasawara shima).— 

 Okada, Cat. Vert. Japan. 1891, p. 72 (Bonin Is.; Koge shima). 



1860. Chelonia mydas Hallowell, Proc. Phil. Acad. 1860, p. 486 (not of Linnseus) 

 (Bonin Lslands). — Chelone mydas Boulenger, Cat. Chel. Brit. Mus., 

 1889, p. 180 (part; Malay Peninsula; Formosa; Bonin Islands). 



An examination of Thunberg's plate'' leaves no doubt as to the 

 identity of the sea-turtle he describes, the four pairs of costal shields 

 and one pair of prefrontals being plainly shown and quite conclusive. 

 The figure is not a bad one for the time and is easily identified. It 

 has nothing to do with Caretta olivacea. 



The "green" turtle is easily identified })y the single pair of long j)re- 

 frontal shields. Tlie carapace has only four pairs of costal shields, like 

 the hawksbill, but in the latter the dorsal shields are more or less 

 imbricate, so that no confusion between the two species should occur. 



« From ^eAcuj'?/, turtle. 



& Svensk. Vetensk. Acad. Nya Handl., VIII. 1787, pi. vii. 



