REPORT ON THE HETEROPODA. 
47 
1854. Oxygyrus keraudrenii, Woodward, Man. Moll., pi. xiv. figs. 24, 25. 
1855. Atlanta keraudrenii, Gegenbaur, Untersucb. Pterop. und Heterop., p. 214. 
1856. Oxygyrus keraudrenii, Troscbel, Gebiss d. Schneck., vol. i. p. 41, pi. ii. fig. 2. 
1858 Atlanta kei'audrenii, Owen, Ency. Brit., vol. xv. p. 375, fig. 65; p. 376, fig. 68. 
1859. „ „ Chenu, Man. Conch., vol. i. p. 121, figs. 526-528 (copy of Eydoux 
and Souleyet). 
1S66. Oxygyrus keraudernii, Keferstein, Bronn’s Thierreich, vol. iii. pt. 2, pi. lxviii. figs. 5-8. 
1868. ,, „ Knocker, Proc. Zool. Soc. Lond., 1868, p. 616. 
1868. Ladas keraudrenii, Weinkauff, Conch. Mittel., vol. ii. p. 430. 
1878. Atlanta ( Oxygyrus ) keraudrenii, Sowerby, Conch. Icon., Pteropoda, pi. iii. fig. 21 a-b. 
1883. Atlanta ( Oxygura ) keraudrenii, Lankester, Ency. Brit., vol. xvi. p. 654, fig. 49 (same as 
Owen). 
1883. Oxygyrus keraudrenii, Tryon, Struct. Syst. Conch., vol. ii. pi. Ixxxvi. figs. 6, 7 (copy of 
Eydoux and Souleyet, reduced). 
1883. ,, ,, Fischer, Man. Moll., pi. xiv. figs. 24-25 (same as Woodward); 
p. 582, fig. 347 (copy of d’Orbigny). 
1884. Atlanta keraudrenii, Sowerby, Thes. Conch., vol. v. p. 148, pi. cccclxxiv. figs. 61, 62. 
Habitat . — Atlantic and Indian Oceans. 
Oxygyrus rangii, Eydoux and Souleyet. 
1852. Atlanta rangii, Eydoux and Souleyet, Voy. “ Bonite,” Zool., vol. ii. p. 369 ; Atlas (1841), 
pi. xviii. figs. 18-24. 
1847. „ ,, Loven, Oversigt k. Vetensk.-Akad. Forhandl., p. 191, pi. iv. (Dentition) 
1850. „ „ Gray, Fig. Moll. Anim., pi. ccxl. fig. 1 (copy of Eydoux and Souleyet). 
Habitat . — Pacific Ocean (Eydoux and Souleyet) ; var., Indian Ocean. 
