Actinia (Ectacmaea) elongata Grube, 1840 accepted as Cerianthus membranaceus (Gmelin, 1791) (original description)
Actinia (Entacmaea) adspersa Gravenhorst, 1831 accepted as Actinia cari Delle Chiaje, 1822 (additional source)
Actinia (Entacmaea) aurantiaca Delle Chiaje, 1822 accepted as Condylactis aurantiaca (Delle Chiaje, 1825) (additional source)
Actinia (Entacmaea) chamaeleon Grube, 1840 accepted as Telmatactis forskalii (Hemprich & Ehrenberg in Ehrenberg, 1834) (original description)
Actinia (Entacmaea) mesembryanthemum Ellis & Solander, 1786 accepted as Actinia equina (Linnaeus, 1758) (additional source)
Actinia (Entacmaea) rosula Ehrenberg, 1834 accepted as Actinia rosula Ehrenberg, 1834 (additional source)
Actinia (Entacmaea) zebra Grube, 1840 accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778) (original description)
Actinia (Isacmaea) atrimaculata Grube, 1840 accepted as Actinia atrimaculata Grube, 1840 (original description)
Actinia (Isacmaea) bimaculata Grube, 1840 accepted as Aulactinia verrucosa (Pennant, 1777) accepted as Bunodactis verrucosa (Pennant, 1777) (original description)
Actinia (Isacmaea) rhododactylos Grube, 1840 accepted as Sagartia rhododactylos (Grube, 1840) accepted as Cylista rhododactylos (Grube, 1840) (original description)
Actinia (Isacmaea) rubripunctata Grube, 1840 accepted as Bunodactis rubripunctata (Grube, 1840) (original description)
Actinia bimaculata Grube, 1840 accepted as Aulactinia verrucosa (Pennant, 1777) accepted as Bunodactis verrucosa (Pennant, 1777) (original description)
Actinia brune (additional source)
Actinia carciniopados Otto, 1823 accepted as Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776) (additional source)
Actinia cereus Müller, 1776 accepted as Actinia candida Müller, 1776 accepted as Metridium senile (Linnaeus, 1761) (additional source)
Actinia corallina Risso, 1827 accepted as Actinia equina (Linnaeus, 1758) (additional source)
Actinia crispa Ehrbg. accepted as Radianthus crispa (Hemprich & Ehrenberg in Ehrenberg, 1834) (additional source)
Actinia glandulosa Otto, 1823 accepted as Bunodactis glandulosa (Otto, 1823) (additional source)
Actinia mutabilis Gravenhorst, 1831 accepted as Aiptasia mutabilis (Gravenhorst, 1831) (additional source)
Actinia rondeletii Delle Chiaje, 1822 accepted as Adamsia rondeletii (Delle Chiaje, 1822) accepted as Calliactis (Sagartia) parasitica (Couch, 1842) accepted as Calliactis parasitica (Couch, 1842) (additional source)
Actinia rubra (Forsskål, 1775) accepted as Actinia equina (Linnaeus, 1758) (additional source)
Actinia stellula Ehrbg. (additional source)
Actinia viduata W. Thompson accepted as Sagartia troglodytes (Price in Johnston, 1847) accepted as Cylista troglodytes (Price in Johnston, 1847) (additional source)
Actinia violacea Risso, 1827 (additional source)
Actinia zonata Rathke, 1836 (additional source)
Cribrina bellis Ellis & Solander accepted as Cereus pedunculatus (Pennant, 1777) (additional source)
Cribrina effoeta Baster, Rapp, Risso & Ehr. accepted as Calliactis parasitica (Couch, 1842) (additional source)

Croatian Exclusive Economic Zone for Actinia (Isacmaea) rhododactylos Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Ectacmaea) elongata Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Ectacmaea) elongata Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Entacmaea) chamaeleon Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Entacmaea) zebra Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Entacmaea) zebra Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Isacmaea) atrimaculata Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Isacmaea) bimaculata Grube, 1840 
Italian Exclusive Economic Zone for Actinia (Isacmaea) rubripunctata Grube, 1840 

Syntype MNB 151, geounit Italian Exclusive Economic Zone, identified as Actinia (Entacmaea) chamaeleon Grube, 1840
Syntype MPW 490, geounit Italian Exclusive Economic Zone, identified as Actinia (Entacmaea) chamaeleon Grube, 1840
Syntype SMNH 5618, geounit Italian Exclusive Economic Zone, identified as Actinia (Entacmaea) chamaeleon Grube, 1840

 Etymology

 for Syllis gracilis Grube, 1840

The specific epithet gracilis is a Latin word meaning 'slender' or 'slim', and refers to the body shape of the species.  [details]

 Nomenclature

 for Lumbriconereis [misspelling of Grube, 1840]

As Lumbriconereis is a mistaken junior spelling variant, not an intentional new genus, taxon authors names should ... [details]

 Spelling

 for Siphonostomum [auct. lapsus]

There is no doubt that Grube was using the genus Siphonostoma Otto, 1821, however, Grube named a new taxon as ... [details]

 Type locality

 for Diopatra baeri Grube, 1840

Palermo, Sicily, Mediterranean Sea (gazetteer estimate 38.13°, 13.37°). [details]

 Type locality

 for Lumbriconereis quadristriata Grube, 1840

Gulf of Naples, Italy, Mediterranean Sea. No geographic location of collection is mentioned in the species ... [details]

 Type locality

 for Lumbriconereis unicornis Grube, 1840

Not stated explicitly, but by inference the Mediterranean-Adriatic. [details]

 Type locality

 for Nereis costae Grube, 1840

Gulf of Naples, Mediterranean Sea. Grube's (1840) introduction indicates that "if it is not expressly mentioned" ... [details]

 Type locality

 for Syllis gracilis Grube, 1840

Gulf of Naples, Mediterranean Sea. The type locality of Syllis gracilis is many times considered as being the ... [details]