Thalassema
Thalassema thalassema
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Clade:	Sedentaria
Subclass:	Echiura
Order:	Echiuroidea
Family:	Thalassematidae
Genus:	Thalassema Pallas [1]
Type species
Lumbricus thalassema Pallas, 1774
Species
See text
Synonyms [1]
Thalassina Montagu, 1813 Thalessema Leach, 1816

Thalassema is a genus of spoonworms in the subclass Echiura.

The World Register of Marine Species includes these species in this genus:- ^[1]

• Thalassema antarcticum Stephen, 1941
• Thalassema arcassonense Cuénot, 1902
• Thalassema diaphanes Sluiter, 1889
• Thalassema elapsum Sluiter, 1912
• Thalassema fuscum Ikeda, 1904
• Thalassema hartmani Fisher, 1947
• Thalassema jenniferae Biseswar, 1988
• Thalassema liliae Schaeffer, 1972
• Thalassema malakhovi Popkov, 1992
• Thalassema marshalli Prashad, 1935
• Thalassema mortenseni Fischer, 1923
• Thalassema ochotica Pergament, 1961
• Thalassema ovatum Sluiter, 1902
• Thalassema owstoni Ikeda, 1904
• Thalassema papillosum ( Delle Chiaje, 1822)
• Thalassema philostracum Fisher, 1947
• Thalassema steinbecki Fisher, 1946
• Thalassema sydniense Edmonds, 1960
• Thalassema thalassema (Pallas, 1774)
• Thalassema viride Verrill, 1879