Euzonus Grube, 1866

Brewer, Michael S., Sierwald, Petra & Bond, Jason E., 2011, A generic homonym concerning chordeumatid millipedes (Arthropoda: Diplopoda) and ophellid worms (Annelida: Polycheata), Zootaxa 2744, pp. 65-68 : 66-67

Genus Euzonus Grube, 1866

Euzonus Grube, 1866: 43 , 64. Type species: Euzonus arcticus , by original designation. Preoccupied by Euzonus Menge, 1854: 14 (Diplopoda, Chordeumatida )

Thoracophelia Ehlers, 1897: 7 , 101. Type species: Thoracophelia furcifera Ehlers, 1897 , by original designation; considered a subgenus of Euzonus Grube, 1866 by Hartman (1956: 293).

Pectinophelia Hartman, 1938: 108 . Type species: Pectinophelia dillonensis Hartman, 1938 , by original designation. Junior subjective synonym of Euzonus Grube, 1866 according to Hartman (1959: 434).

Hartman (1938: 103) described the genus Pectinophelia and listed distinguishing characters between the genera Pectinophelia and Thoracophelia . Hartman (1944) considered both genera closely related. The polychaete genus Thoracophelia Ehlers, 1897 was treated as a subgenus of Euzonus Grube, 1866 by Hartman (1956: 293) who cited distinguishing features between members of the subgenera Thoracophelia and ‘ Euzonus sensu stricu . ’ Later, Hartman (1959: 434) synonymized Pectinophelia under ‘ Euzonus .’ In subsequent publications, the subgeneric structure of Euzonus Grube, 1866 was mostly maintained (e.g. Hartman 1966: 51, 1967: 137 and Rozbaczylo & Zamorano 1970) but not always (e.g. Blake 2000; Misaka & Sato 2003; and Hartmann-Schröder 1971: 383 who placed the genera Euzonus and Ophelia Savigny, 1818 in the then new subfamily Opheliinae without any reference to the subgenus Thoracophelia ). In a subsequent publication, Hartmann-Schröder & Parker (1995: 2) refer to the subgenus again.

Currently, 15 species are placed in Euzonus Grube, 1866 ( Fauchald & Bellan 2009) :

Subgenus Euzonus (Euzonus)

Euzonus (Euzonus) dillonensis ( Hartman, 1938) Subgenus Euzonus (Thoracophelia)

Euzonus (Thoracophelia) furcifera ( Ehlers, 1897) Euzonus (Thoracophelia) heterocirrus Rozbaczylo & Zamorano, 1970 Euzonus (Thoracophelia) mucronata ( Treadwell, 1914) Euzonus (Thoracophelia) profundus Hartman, 1967 Euzonus (Thoracophelia) williamsi ( Hartman, 1938) Euzonus arcticus Grube, 1866

Euzonus ezoensis ( Okuda, 1936)

Euzonus flabelligerus ( Ziegelmeier, 1955)

Euzonus japonicus Misaka & Sato, 2003

Euzonus mammillatus Santos, Nonato & Petersen, 2004 Euzonus otagoensis Probert, 1976

Euzonus papillatus Santos, Nonato & Petersen, 2004 Euzonus zeidleri Hartmann-Schröder & Parker, 1995