REVIEW OF OPHIODERMA 199 



Ophioderma serpens Liitken, 1859, Norske Vidensk. Selsk. Skr., sen 5, 

 vol. 5, p. 198, pi. 1, figs. 6a-6c. 



Ophioderma brevispinum H. L. Clark, 1915, Mem. Mus. Compar. ZooL, 

 vol. 25, p. 300. 



Littoral to 63 fathoms. Massachusetts to Florida, Gulf of 

 Mexico, and Caribbean area. Common. 107 specimens in the 

 Hancock Collection. 



17. Ophioderma januarii 



Ophioderma januarii Liitken, 1856, Vidensk. Medd. Dansk Naturhist. 

 Foren., p. 7; 1859, Xorske Vidensk. Selsk. Skr., ser. 5, vol. 5, 

 p. 199, pi. l,figs. 5a-5c. 

 Littoral. Tobago Island, British West Indies, and Brazil. Rare. 



18. Ophioderma holmesii 



Ophiura holmesii Lyman, 1860, Proc. Boston Soc. Nat. Hist., vol. 7, 



p. 255. 

 Ophioderma holmesii Meissner, 1901, Bronn's Thier-Reich, vol. 2, 



abt. 3, buch 3, p. 915. 



Littoral. Charleston, South Carolina. Rare. 



19. Ophioderma brevicaudum 



Ophioderma brevicauda Liitken, 1856, Vidensk. Medd. Dansk Natur- 

 hist. Foren., p. 8 ; 1859, Norske Vidensk. Selsk. Skr., ser. 5, vol. 5, 

 p. 196, pi. 1, figs. 3a-3c. 



Ophioderma brevicaudum H. L. Clark, 1933, Sci. Survey of Porto Rico 

 and Virgin Islands, vol. 16, pt. 1, p. 69. 



Littoral. Florida, Bahamas, Dutch West Indies, and Bermuda. 

 Common. 132 specimens in the Hancock Collection. 



20. Ophioderma tonganum* 



Ophioderma tongana Liitken, 1872, Overs. K. Danske Vidensk. Selsk. 

 Forhandl., pp. 76, 106; Mortensen, 1933, Vidensk. Medd. Dansk 

 Naturhist. Foren., vol. 93, pp. 381-382. 



This species was described from one specimen reported to be 

 from Tonga Island in the South Pacific, where the genus does 

 not occur. The type specimen has been lost (Mortensen, 1933, 

 p. 382) ; but it is retained in the key until more material is 

 available, as the species seems to be valid and the locality may 

 be incorrect. 



