Echinoidea Taxon list
Hemiphormosoma paucispinum Mortensen, 1934
Paraphormosoma alternans (de Meijere, 1902)
Phormosoma adenicum Döderlein, 1905 accepted as Phormosoma verticillatum Mortensen, 1904
Phormosoma alternans de Meijere, 1903 accepted as Paraphormosoma alternans (de Meijere, 1902)
Phormosoma asterias A. Agassiz, 1881 accepted as Kamptosoma asterias (A. Agassiz, 1881)
Phormosoma atlanticum Koehler, 1897 accepted as Hygrosoma petersii (A. Agassiz, 1880)
Phormosoma bursarium A. Agassiz, 1881
Phormosoma hispidum A. Agassiz, 1898 accepted as Tromikosoma hispidum (A. Agassiz, 1898)
Phormosoma hoplacantha Thomson, 1877 accepted as Hygrosoma hoplacantha (Thomson, 1877)
Phormosoma indicum Döderlein, 1905 accepted as Phormosoma bursarium A. Agassiz, 1881
Phormosoma koehleri (Mortensen, 1903) accepted as Tromikosoma koehleri Mortensen, 1903
Phormosoma luculenta A. Agassiz, 1879 accepted as Hygrosoma luculentum (A. Agassiz, 1879)
Phormosoma luculentum (A. Agassiz, 1879) accepted as Hygrosoma luculentum (A. Agassiz, 1879)
Phormosoma luculentum Koehler, 1896, non A. Agassiz, 18?? accepted as Hygrosoma petersii (A. Agassiz, 1880)
Phormosoma panamense (A. Agassiz, 1898) accepted as Tromikosoma panamense (A. Agassiz, 1898)
Phormosoma panamensis A. Agassiz, 1898 accepted as Tromikosoma panamense (A. Agassiz, 1898)
Phormosoma petersii A. Agassiz, 1880 accepted as Hygrosoma petersii (A. Agassiz, 1880)
Phormosoma placenta Thomson, 1872
Phormosoma placenta africana Mortensen, 1934
Phormosoma placenta placenta Thomson, 1872
Phormosoma placenta sigsbei A. Agassiz, 1880
Phormosoma placenta var. africana Mortensen, 1934 accepted as Phormosoma placenta africana Mortensen, 1934
Phormosoma placenta var. africanum Mortensen, 1934 accepted as Phormosoma placenta africana Mortensen, 1934
Phormosoma rigidum A. Agassiz, 1881
Phormosoma sigsbei A. Agassiz, 1880 accepted as Phormosoma placenta sigsbei A. Agassiz, 1880
Phormosoma tenue A. Agassiz, 1879 accepted as Tromikosoma tenue (A. Agassiz, 1879)
Phormosoma tenui (A. Agassiz, 1879) accepted as Tromikosoma tenue (A. Agassiz, 1879)
Phormosoma tenuis A. Agassiz, 1879 accepted as Tromikosoma tenue (A. Agassiz, 1879)
Phormosoma uranus Koehler, 1898, non Thomson, 1877 accepted as Hygrosoma petersii (A. Agassiz, 1880)
Phormosoma uranus Thomson, 1877 accepted as Tromikosoma uranus (Thomson, 1877)
Phormosoma verticillatum Mortensen, 1904
Phormosoma zealandiae Agassiz, 1904 accepted as Phormosoma rigidum A. Agassiz, 1881