REVIEW OF OPHIODERMA 189 



It is being retained in the key in the hope that more material may be col- 

 lected in the future. 



2. Ophioderma guttatum 



O phioderma guttata Lutken, 1859, Norske Vidensk. Selsk. Skr., ser. 5, 

 vol. 5, p. 197, pi. l,figs. 8a-8b. 

 Littoral. Jamaica and Tobago Islands. Rare. 



3. Ophioderma squamosissimum 



Ophioderma squamosissima Lutken, 1856, Vidensk. Medd. Dansk Natur- 

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

 5, p. 194, pi. l,figs. 7a-7b. 



Ophioderma squamosissmum H. L. Clark, 1933, Sci. Survey of Porto 

 Rico and Virgin Islands, vol. 16, pt. 1, p. 72. 

 Littoral. Buccoo Reef, Tobago Island ; West Indies. 

 Exceedingly rare. 



4. Ophioderma wahlbergii* 



Ophioderma wahlbergii Miiller und Troschel, 1842, Syst. Ast., p. 87; 



H. L. Clark, 1923, Annals South African Mus., vol. 13, p. 353. 



Locality doubtful. Port Natal, South Africa. 

 The species has been taken only once and both H. L. Clark (1923, 

 p. 353) and Th. Mortensen (1933, p. 382) share the belief that the 

 locality given is problematic. It is included in the key in the hope that 

 some future worker will be able to tie it in with material from a reliable 

 locality. 



5. Ophioderma teres 



Ophiura teres Lyman, 1860, Proc. Boston Soc. Nat. Hist., vol. 7, p. 198; 

 1865, Mem. Mus. Compar. Zool., vol. 1, no. 1, p. 37, fig. 1. 



Ophioderma teres Meissner, 1901, Bronn's Thier-reich, vol. 2, abt. 3, 

 buch 3, p. 915. 



Ophioderma teres var. unicolor H. L. Clark, 1940, Zoologica [N. Y.], 

 vol. 25, pt. 3, p. 342. 



Littoral to 10 fathoms. Reef, ten miles west of Point Malarrimo, 

 Baja California, Mexico, south to La Plata Island, Ecuador; 



