1912.] NATURAL SCIENCES OF PHILADELPHIA. 385 



Argonauta argo Linn, 1758. 



Argonauta Argo Linn6, 1758, p. 708, Nos. 282, 23.1. 



Argonauta Argo Lischke, 18'39, vol. I, p. 29 (locality record). 



Argonauta Argo Dunker, 1882, p. 1 (mere note). 



Argonauta argo Ortmann, 1888, p. 641. 



Argonauta argo Jatta, 1896, p. 191, pi. 8, fig. 3; pi. 18, figs. 15-29. 



Argonauta Argo Hirase, 1907, p. 3 (locality record). 



Because of the large number of other species common to both 

 regions, the identity of the Japanese race with typical A. argo from 

 the Mediterranean is here assumed, although the fact still remains 

 to be definitely established. 



Distribution. Enoshima, Sagami (Ortmann); Tokio (Dunker); 

 Tango (Hirase); Loo-Choo Islands (Lischke). Atlantic, Mediter- 

 ranean, and Indian Oceans. 



Argonauta Mans Solander, 1786. 



Argonauta hians Solander, 1786, p. 44, No. 1,055 (fide Dall). 



Argonauta hians Dillwyn, 1817, vol. 1, p. 334. 



/o Dillwyn, 

 Argonauta gondola Lischke, 1839, vol. I, p. 29 (mere note). 



Argonauta gondola Dillwyn, 1817, vol. 1, p. 335. 



Argonauta gondola Dunker, 1882, p. 1 (mere note). 

 Argonauta hians Ortmann, 1888, p. 641. 



Distribution. Enoshima, Sagami (Ortmann) ; Sagami (Hirase) ; 

 Loo-Choo Islands (Lischke). Indo-Pacific, South Atlantic, etc. 



Argonauta hians navicula Solander, 1786. 



Argonauta navicula Solander, 1786, p. 44, No. 1,055 (fide Dall). 

 Argonauta Oweni Adams and Reeve, 1850, p. 4, pi. 3, figs. la-Id. 

 Argonauta Owenii Dunker, 1882, p. 1 (mere note). 

 Argonauta hians navicula Dall, 1908, pp. 226, 229. 



Distribution. Japan (Dunker). South Atlantic, Indo-Pacific, etc. 

 Sub-family OCYTHOIN^. 



Genus OCYTHOE Rafinesque, 1814. 

 Ocythoe tuberculata Rafinesque, 1814. 



Ocythoe tuberculata Rafinesque, 1814, p. 29. 



Tremoctopus doderleini Ortmann, 1888, p. 642, pi. 20. 



Ocythoe tuberculata Jatta, 1896, p. 198, pi. 6, fig. 3; pi. 7, fig. 8; pi. 19, figs. 



1-12; text figs. 14, 52. 

 Ocythoe tuberculata Wiilker, 1910, p. \. 



The Tremoctopus doderleini of Ortmann, which is obviously not 

 a Tremoctopus in the accepted sense of the term, is said by Wiilker 

 to be identical with the common Mediterranean 0. tuberculata. The 

 reported dispersal of the species is somewhat peculiar and indicates 

 that it will eventually prove to be nearly cosmopolitan. 



Distribution. Bay of Tokio (Ortmann); near Misaki, Sagami 

 (Wiilker); near Aburatsubo, Sagami (Wiilker). Mediterranean 

 Sea; Vineyard Sound, Massachusetts (Verrill); West Indies (fide 

 Yen-ill). 



