From editor or global species database
Type species Nishikawa (1998: 253) stated that the "type species is Lumbricus thalassema by monotypy, because it is the only species with which Thalassema was firstly associated (see ICZN Art 67l)". According to Arts. 67.1.2 and 67.12 of the Code (ICZN 1999), however, the type species must be Thalassema neptuni, not Lumbricus thalassema. [details]