Stephen and Edmonds (1972: 351) cite Sedgwick (1898: 527) as the first user of 'Echiuroidea' at a high rank (class) ... [details]

The early history of the classification of Sipuncula within Animalia is summarized by Saiz-Salinas (2018). Their ... [details]

According to Stephen & Edmonds (1972) Listriolobus Spengel, 1912 is a nomen nudum, although they retained Spengel ... [details]

The publication date is incorrectly stated to be 1766 in the influential monograph of Stephen & Edmonds (1972: ... [details]

Original spelling as Alomasoma chaetifera (feminine) had been appropriately corrected to A. chaetiferum (neuter) by ... [details]

Original spelling as Alomasoma nordpacifica (feminine) had been appropriately corrected to A. nordpacificum ... [details]

Original spelling as Arhynchite "rugosum" had been rightly corrected to A. rugosus by Stephen & Edmonds (1972) in ... [details]

The original specific name "capensis" was incorrect because Ochetostoma is neuter in gender; it was corrected to ... [details]

Original spelling as Onchnesoma stenstrupii but subsequent authors have corrected the species name to ... [details]

Original spelling as Thalassema "arcassonensis" had been rightly corrected to T. arcassonense by Stephen & Edmonds ... [details]

The specific name "thalassema" is neuter noun (see Nishikawa 1998), so it cannot not be changed. It cannot change ... [details]

The changed ending ‘thalassemum’ is introduced by Stephen & Edmonds (1972:459) as if it first appeared in ... [details]

Original spelling as Thalassema "viridis" had been rightly corrected to T. viride by Stephen & Edmonds (1972) in ... [details]

Sipunculus pyriformis Danielssen, 1860 cannot be treated as a junior synonym of Onchnesoma steenstrupii of 1875. ... [details]

Uncertain who subsequently designated the type species of Bonellia. Rolando included 2 species in the genus, but ... [details]