Echinoidea Taxon list
Echinosoma australe Koehler, 1926 accepted as Tromikosoma australe (Koehler, 1922)
Echinosoma hispidum (A. Agassiz, 1898) accepted as Tromikosoma hispidum (A. Agassiz, 1898)
Echinosoma koehleri (Mortensen, 1903) accepted as Tromikosoma koehleri Mortensen, 1903
Echinosoma luculentum (A. Agassiz, 1879) accepted as Hygrosoma luculentum (A. Agassiz, 1879)
Echinosoma panamense (A. Agassiz, 1898) accepted as Tromikosoma panamense (A. Agassiz, 1898)
Echinosoma petersii (A. Agassiz, 1880) accepted as Hygrosoma petersii (A. Agassiz, 1880)
Echinosoma tenue (A. Agassiz, 1879) accepted as Tromikosoma tenue (A. Agassiz, 1879)
Echinosoma tenuis (A. Agassiz, 1879) accepted as Tromikosoma tenue (A. Agassiz, 1879)
Echinosoma uranus (Thomson, 1877) accepted as Tromikosoma uranus (Thomson, 1877)
Echinosoma zealandiae (Agassiz, 1904) accepted as Phormosoma rigidum A. Agassiz, 1881
Sperosoma antillense Mortensen, 1934
Sperosoma armatum Koehler, 1927
Sperosoma biseriatum Döderlein, 1901
Sperosoma crassispinum Mortensen, 1934
Sperosoma durum Döderlein, 1905
Sperosoma giganteum A. Agassiz & H.L. Clark, 1907
Sperosoma grimaldii Koehler, 1897
Sperosoma nudum Shigei, 1977
Sperosoma obscurum A. Agassiz & H.L. Clark, 1907
Sperosoma quincunciale de Meijere, 1904
Sperosoma tristichum Mortensen, 1934
Tromikosoma australe (Koehler, 1922)
Tromikosoma hispidum (A. Agassiz, 1898)
Tromikosoma koehleri Mortensen, 1903
Tromikosoma mordens de Meijere, 1904 accepted as Tromikosoma tenue (A. Agassiz, 1879)
Tromikosoma panamense (A. Agassiz, 1898)
Tromikosoma rugosum Anderson, 2016
Tromikosoma tenue (A. Agassiz, 1879)
Tromikosoma uranus (Thomson, 1877)