HERPETOLOGY OF JAPAN. 

 List of specimens of Chdonia japonica. 



511 



a Figs. 393-395. 



Genus ERETMOCHELVS " Fitzinger. 



1828. Caretta Ritgen, Nova Acta Acad. Leop. Carol., XIV, p. 270 (type, Chelonia 



imhricata) (not of Rafinesque, 1814). 

 1843. Eretmochelys Fitzinger, Syst. Rept., p. 30 (same type). 

 1873. Onychochelys Gray, Proc. Zool. .Sec. London. 1873, p. 397 (type, 0. kraussi). 



ERETMOCHELYS SQUAMOSA b (Girard). 



1769. Testudo imbricata Pennant, Indian Zool., (p. 87) (not of Linnaeus 1766). — 

 Chelonia imbricata Temminck and Schlegel, Fauna Japon., Rept., 1835, 

 pp. 13, 139, pi. V, figs. 1-2 (Japan); pi. vi, fig. 4 (Moluccas). — Okada, Cat. 

 Vert. Japan, 1891, p. 72 (Okinawa shima). — Chelone ivibricata Straucji, 

 Chelon. Stud., 1862 (p. 181) (part); Mem. Acad. Sci. St. Petersb. (7), 

 XXXVIII, No. 2, 1890, p. 121 (part: Carmen Isl. etc.).— Boulenger, Cat. 

 Chel. Brit. Mus., 1889, p. 183 (part: Formosa, etc). 



1857. Eretmochelys squamata Agassiz, Contr. Nat. Hist. U. S. Am., I, p. 382 



(Indian and Pacific oceans; Japan) (not Testudo squamata Gmelin). — 

 Garman, Bull. U. S. Nat. Mus. No. 25, 1884, p. 300 (tropical Pacific and 

 Indian oceans). — Caretta squamata Swinhoe, Ann. Mag. Nat. Hist. (3), 

 XII, 1863, p. 221 (Tamsui, Formosa). — Guenther, Rept. Brit. India, p. 54 

 (Formosa). 



1858. Caretta squamosa Girard, Herpet. U. S. Expl. Exped., p. 442, pi. xxx, figs. 



1-7 (Sulu Seas and Indian Ocean). 

 1858. Caretta rostrata Giraud, Herpet. U. S. Expl. Exped., p. 446, pi. xxx, figs.8-13 

 (Fiji Isls.; type in U. S. Nat. Mus.). 



The hawksbill, or tortoise-shell turtle, has two pairs of prefrontals, 

 like Caretta olivacea, but only four pairs of costal shields, like Chelonia 

 japonica, the vertebral shields being more or less pointed behind and 

 imbricate. The details of structure are shown in the figures of E. 

 imhricata (figs. 396-400), and will aid intlie identification in default of 

 description and figures of Japanese specimens, of which there are 

 none in our collection. 



Habitat. — -The capture of this species is an important fishery in the 

 Riu Kius, and the tortoise-shell industry is one of considerable magni- 

 tude in Nagasaki. That the hawksbill occasionally straggles farther 

 north is eyidenced by its haying been taken once ofl' Nemuro, north- 

 east Yezo, according to Doctor Nozawa. 



o From EpETuov, oar; jc'/lu?, turtle. 



& Signifying scaly, with reference to the imhrieation of the dorsal shields. 



