Abatus agassizii Mortensen, 1910 (original description)
Abatus cavernosus bidens Mortensen, 1910 (original description)
Abatus cavernosus var. bidens Mortensen, 1910 accepted as Abatus cavernosus bidens Mortensen, 1910 (original description)
Arbacia crassispina Mortensen, 1910 accepted as Arbacia dufresnii (Blainville, 1825) (original description)
Austrocidaris spinulosa Mortensen, 1910 (original description)
Sterechinus agassizii Mortensen, 1910 (original description)

Antarctic 200NM zone beyond the coastline for Amphipneustes lorioli Koehler, 1901 
Antarctic 200NM zone beyond the coastline for Ctenocidaris speciosa Mortensen, 1910 
Antarctic 200NM zone beyond the coastline for Sterechinus neumayeri (Meissner, 1900) 
Chilean Exclusive Economic Zone for Pseudechinus magellanicus (Philippi, 1857) 
Chilean Exclusive Economic Zone for Pseudechinus magellanicus (Philippi, 1857) 
Falkland Islands Exclusive Economic Zone for Austrocidaris canaliculata (A. Agassiz, 1863) 
Falkland Islands Exclusive Economic Zone for Pseudechinus magellanicus (Philippi, 1857) 
Falkland Islands Exclusive Economic Zone for Sterechinus agassizi Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus agassizii Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus bidens Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus bidens Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Abatus cavernosus (Philippi, 1845) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Amphipneustes koehleri Mortensen, 1905 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Amphipneustes koehleri Mortensen, 1905 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Antrechinus nordenskjoldi (Mortensen, 1905) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Ctenocidaris speciosa Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Ctenocidaris speciosa Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Ctenocidaris speciosa Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Sterechinus agassizi Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Sterechinus agassizi Mortensen, 1910 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Sterechinus neumayeri (Meissner, 1900) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Sterechinus neumayeri (Meissner, 1900) 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Sterechinus neumayeri (Meissner, 1900) 

 Authority

 for Abatus agassizii Mortensen, 1910

Attributed to Pfeffer by Mortensen (1910 and 1951), but name of Pfeffer is based on a collection label. Thus ... [details]