26 U.S. NATIONAL MUSEUM BULLETIN 264 



Echinocyamus planissimus H. L. Clark 



Memoirs of the Museum of Comparative Zoology at Harvard, vol. 55, 

 p. 422, pi. 27, figs. 5-8, 1938. 



Holotype: 



MCZ 7234 (dry). Pearl Shoals, Broome, Western Australia, 5-7 fms., 

 1929. 



Paratypes: 



MCZ 7235 (3 dry), Broome, Western Australia, 1929. 



Echinocyamus platytatus H. L. Clark 



Memoirs of the Museum of Comparative Zoology at Harvard, vol. 46, 

 no. 1, p. 63, pL 127, figs. 1-6, 1914. 



Syntypes: 



MCZ 2306 (57 dry), Portsea, Victoria, Australia. 



Echinocyamus polyporus Mortensen 



Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjoben- 

 havn, bd. 73, p. 176, pi. 6, figs. 28-31, 1921. 



= Echinocyamus (Mortonia) polyporus Mortensen — see Mortensen's 

 Monograph of the Echinoidea, vol. 4, no. 2, p. 200. 



Paratype: 



MCZ 5016 (1 dry). Cook Strait, New Zealand, 20 fms. 



Echinocyamus scabev var. subconicus Mortensen 



Monograph of the Echinoidea, vol. 4, no. 2, p. 188, pi. 46, figs. 34-36, 

 1948. 



Syntype: 



USNM E7169 (1 dry), Kei Island, 233 meters. May 1922. 



Although Mortensen refers, in the Monograph, to previous publication 

 of this variety (which he considers is probably a subspecies) in Vidensk, 

 Medd. fra Dansk. in 1948, this paper did not actually appear until 1949, 

 thus making the Monograph reference the original publication. 



Echinolampas sternopetala A. Agassiz and H. L. Clark 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 50, 

 no. 8, p. 130, 1907. 



= Planilampas sternopetala (Agassiz and Clark)- -see Mortensen's 

 Monograph of the Echinoidea, vol. 4 no. 1, p. 298. 



Paratype: 



MCZ 4300 (1 dry). Albatross Sta. 3749, off Sumo Saki, Honshu, Japan, 

 83-158 fms. 



Echinometra insularis H. L. Clark 



Memoirs of the Museum of Comparative Zoology at Harvard, vol. 32, 

 no. 4, p. 374, pi. 95, figs. 13-15; pL 114, figs. 3-4, 1912. 



