Anoplosyllis fulva Marion & Bobretzky, 1875 accepted as Syllides fulvus (Marion & Bobretzky, 1875) (original description)
Apomatus similis Marion & Bobretzky, 1875 (original description)
Autolytus (Proceraea) ornatus Marion & Bobretzky, 1875 accepted as Myrianida rubropunctata (Grube, 1860) (original description)
Eulalia (Eumida) guttata Claparède, 1870 (source of synonymy)
Euphrosine audouinii (Costa, 1841) accepted as Euphrosine foliosa Audouin & H Milne Edwards, 1833 (new combination reference)
Eusyllis lamelligera Marion & Bobretzky, 1875 (original description)
Gyptis Marion, 1874 (redescription)
Gyptis propinqua Marion & Bobretzky, 1875 (original description)
Lacydonia Marion, 1874 (redescription)
Lacydonia miranda Marion, 1874 (redescription)
Magalia perarmata Marion, 1874 accepted as Syllidia armata Quatrefages, 1866 (redescription)
Marphysa fallax Marion & Bobretzky, 1875 accepted as Paucibranchia fallax (Marion & Bobretzky, 1875) (original description)
Octobranchus Marion & Bobretzky, 1875 (original description)
Octobranchus giardi Marion & Bobretzky, 1875 accepted as Octobranchus lingulatus (Grube, 1863) (original description)
Protula similis (Marion & Bobretzky, 1875) accepted as Apomatus similis Marion & Bobretzky, 1875 (original description)
Pterosyllis lineolata (A. Costa, 1864) accepted as Amblyosyllis lineolata (A. Costa, 1864) accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (additional source)
Serpula galeata Grube, 1860 accepted as Vermiliopsis infundibulum (Philippi, 1844) (source of synonymy)
Syllis torquata Marion & Bobretzky, 1875 (original description)

 Editor's comment

 for Euphrosine audouinii (Costa, 1841)

Euphrosine audouinii was wrongly listed in WoRMS as authored by Marion & Bobretzky, 1875, but it is clearly a ... [details]

 Taxonomy

 for Octobranchus Marion & Bobretzky, 1875

Octobranchus Marion & Bobretzky, 1875 was erected for new species Octobranchus giardi, now a subjective synonym of ... [details]

 Taxonomy

 for Vermilia marseillesensis Bush, 1907

This is Bush's new name for Vermilia infundibulum sensu Marion & Bobretzky (1875), an objective synonym of ... [details]

 Type locality

 for Eupomatus affinis Marion, 1875

Golfe de Marseille. No further precision, but given by Gourret (1902: 689) as Les Goudes. 43.13 N, 5. 20 E  [details]