From editor or global species database
Spelling recorded in Nomenclator Zoologicus as first authored by Schultze (1853), although it would have been better ignored as the usage is in text flow in a work not on Polychaeta taxonomy. Other such mistaken instances exist, perhaps influenced by the common word 'exogenous'. Hartman catalogue (1959: records 'Exogene' as one of three variant spellings where 'Exogone' was intended. [details]