6 U.S. NATIONAL MUSEUM BULLETIN 264 



MCZ 604 (1 alcohol), off Guadeloupe, 769 fms., Blake collection. 



MCZ 605 (1 alcohol), off Dominica, 611 fms., Blake collection. 



MCZ 597 (5 alcohol), off Virgin Islands, 1,097 fms., Blake collection. 



MCZ 598 (1 alcohol), west of Haiti, 1,200 fms., 5tofee collection. 



MCZ 600 (1 alcohol), off Guadeloupe, 734 fms., Blake collection. 



MCZ 602 (1 alcohol), St. Vincent, 573 fms., Blake collection. 



Aspidodiadema arcitum Mortensen 



Videnskabelige Meddelelser fra den naturhistoriske Foreningi Kjoben- 

 havn, bd. 103, p. 547, 1939. 



Syntypes : 



USNM 27581 (31 alcohol, 1 dry), Albatross Sta. 4021, Kauai, Hawaii, 

 286-399 fms., June 21, 1902. 



MCZ 782 (3 dry). Albatross Sta. 4021, see above. 



Although Mortensen did not indicate a holotype in his description, the 

 dry specimen of USNM 27581 is labeled "type" in his handwriting and 

 undoubtedly is the specimen he intended for the holotype. 



Aspidodiadema hawaiiense Mortensen 



Videnskabelige Meddelelser fra den naturhistoriske Foreningi Kjoben- 

 havn, bd. 193, p. 548, 1936. 



Syntypes : 



USNM 27587 (23 alcohol). Albatross Sta. 3914, Diamond Head, Oahu, 

 Hawaii, 292 fms., May 6, 1902. 



Aspidodiadema jacobyi A. Agassiz 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 8, 

 no. 2, p. 74, 1880. 



Syntypes : 



MCZ 573 (2 dry), off Cayman Brae, West Indies, 297 fms., Blake col- 

 lection. 



MCZ 576 (1 dry), off Santiago de Cuba, 288 fms., 5tofee collection. 



MCZ 577 (3 dry), off Santa Cruz, 248 fms., Blake collection. 



MCZ 591 (1 alcohol), off St. Kitts, 245 fms., Blake collection. 



MCZ 592 (2 alcohol), off St. Kitts., 208 fms., Blake coUection. 



MCZ 593 (1 alcohol), Barbados, 221 fms., Blake collection. 



MCZ 594 (4 alcohol), off St. Cruz, 248 fms., Blake collection. 



