From editor or global species database
Taxonomy Kuroda & Habe (1952) concluded that Pilsbry had figured two species as Thylacodes medusae and introduced the new name Serpulorbis validus for one of the figures. As they gave no description, and Pilsbry did not distinguish between his figures, S. validus fails to comply with I.C.Z.N. (1999) Art. 13.1.1 and is a nomen nudum. In treating this species in 1975, Okutani & Habe misspelled the name as varidus and gave a figure and description, thus introducing the available name Serpulorbus varidus Okutani & Habe. For further discussion, see Bieler & Petit (2011: 67). [details]