Cymospira brachycera Baird, 1864 accepted as Spirobranchus corniculatus (Grube, 1862) (additional source)
Cymospira incrassata Kroeyer in Mörch, 1863 accepted as Spirobranchus incrassatus Krøyer in Mörch, 1863 (additional source)
Cymospira tricornis Baird, 1864 accepted as Spirobranchus cruciger (Grube, 1862) accepted as Spirobranchus corniculatus (Grube, 1862) (additional source)
Pomatoceropsis roxasi Holly, 1935 accepted as Spirobranchus gaymardi (Quatrefages, 1866) accepted as Spirobranchus corniculatus (Grube, 1862) (source of synonymy)
Pomatoceros paumotanus Chamberlin, 1919 accepted as Spirobranchus paumotanus (Chamberlin, 1919) (source of synonymy)
Pseudopomatoceros roxasi (Holly, 1935) accepted as Spirobranchus gaymardi (Quatrefages, 1866) accepted as Spirobranchus corniculatus (Grube, 1862) (source of synonymy)
Spirobranchus cruciger (Grube, 1862) accepted as Spirobranchus corniculatus (Grube, 1862) (new combination reference)
Spirobranchus gardineri Pixell, 1913 (additional source)
Spirobranchus gaymardi (Quatrefages, 1866) accepted as Spirobranchus corniculatus (Grube, 1862) (redescription)
Spirobranchus giganteus corniculatus (Grube, 1862) accepted as Spirobranchus corniculatus (Grube, 1862) (additional source)
Spirobranchus nigranucha (Fischli, 1903) (additional source)
Spirobranchus paumotanus (Chamberlin, 1919) (additional source)
Spirobranchus tetraceros (Schmarda, 1861) (additional source)

 Status

 for Spirobranchus tetraceros (Schmarda, 1861)

The reported wide distribution of S. tetraceros was a result of a study by ten Hove (1970) which lumped 22 nominal ... [details]

 Taxonomy

 for Vermilia rostrata Lamarck, 1818

Questionable, known from tube only, attributed to Spirobranchus rostratus by Hartman (1959: 600); it might be any ... [details]