64 U.S. NATIONAL MUSEUM BULLETIN 264 



Syntype: 



MCZ 2773 (2 dry), Challenger Sta. 147, west of Crozet Islands, 

 46016' S., 48027' E., 1,600 fms. 



Pourtalesia laguncula a. Agassiz 



Proceedings of the American Academy of Arts and Sciences, vol. 14, 

 p. 205, 1879. 



Syntype: 



MCZ 2776 (1 dry). Challenger Sta. 232, off Sagami Bay, Japan, 

 35°11'N., 139028'E., 345 fms. 



Pourtalesia tanneri A. Agassiz 



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

 p. 77, pi. 8, figs. 1-2, 1898. 



Syntypes: 



MCZ 2777 (7 dry). Albatross Sta. 3431, Gulf of California, 23°59'N., 

 108O40'W., 995 fms. 



MCZ 4307 (7 dry), same as 2777. 



Pourtalesia wandeli Mortensen 



Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjoben- 

 havn, p. 241, 1905. 

 = Pourtalesia miranda-see H. L. Clark, 1917, p. 128. 



Syntype: 



MCZ 2778 (1 dry), Ingolf Sta.. 36, west of Frederickshaab, Greenland, 

 6l031'N., 56°2rw., 143 fms. 



Prionechinus depressus a, Agassiz and H. L. Clark 



Bulletin of the Museumof Comparative Zoology at Harvard, vol. 50, no. 

 8, p. 244, 1907. 



= Male of Prionechinus sculptus --see Mortensen's Monograph of the 

 Echinoidea, vol. 3, no. 2, p. 292. 



Lectotype (designated by Mortensen, Monograph, vol. 3, no. 3, p. 293): 

 USNM 32743 (dry). Albatross Sta. 4083, north coast of Maui, Hawaii, 

 238-253 fms., July 21, 1902. 



Syntypes: 



USNM 31207 (2 alcohol), Albatross Sta. 3818, south coast of Oahu, 

 Hawaii, 293-295 fms., Mar. 31, 1902. 



USNM 32712 (14 dry). Albatross Sta. 4086, north coast of Maui, Hawaii, 

 283-308 fms., July 21, 1902. 



USNM 32713 (13 dry). Albatross Sta. 4088, Pailolo Channel, Hawaii, 

 297-306 fms., July 21, 1902. 



USNM 32714 (4 dry), Albatross Sta. 4083, see above. 



MCZ 3938 (2 dry). Albatross Sta. 4083, see above. 



