Abyla pentagona (Quoy & Gaimard, 1827) accepted as Abylopsis tetragona (Otto, 1823) (basis of record)
Bougainvillia frondosa Mayer, 1900 (original description)
Chunia Mayer, 1900 accepted as Abylopsis Chun, 1888 (original description)
Chunia capillaria Mayer, 1900 accepted as Abylopsis eschscholtzii (Huxley, 1859) (original description)
Cytaeis gracilis Mayer, 1900 accepted as Lizzia gracilis (Mayer, 1900) (original description)
Dinema jeffersoni Mayer, 1900 (original description)
Diphyopsis hispaniana Mayer, 1900 accepted as Diphyes hispaniana (Mayer, 1900) accepted as Chelophyes appendiculata (Eschscholtz, 1829) (original description)
Dipurena fragilis Mayer, 1900 accepted as Slabberia strangulata (McCrady, 1859) (original description)
Dipurena picta Mayer, 1900 accepted as Slabberia halterata Forbes, 1846 (original description)
Dissonema turrida Mayer, 1900 accepted as Amphinema turrida (Mayer, 1900) (original description)
Dysmorphosa dubia Mayer, 1900 accepted as Podocoryna dubia (Mayer, 1900) (original description)
Dysmorphosa minuta Mayer, 1900 accepted as Lizzia blondina Forbes, 1848 (original description)
Ectopleura minerva Mayer, 1900 (original description)
Ersaea hispaniana Mayer, 1900 accepted as Chelophyes appendiculata (Eschscholtz, 1829) (original description)
Eucheilota paradoxica Mayer, 1900 (original description)
Eucopium parvigastrum Mayer, 1900 accepted as Phialella parvigastra (Mayer, 1900) (original description)
Gemmaria dichotoma Mayer, 1900 accepted as Zancleopsis dichotoma (Mayer, 1900) (original description)
Laodicea neptuna Mayer, 1900 (original description)
Lizzia elegans Mayer, 1900 accepted as Koellikerina elegans (Mayer, 1900) (original description)
Multioralis Mayer, 1900 (original description)
Multioralis ovalis Mayer, 1900 (original description)
Netocertoides Mayer, 1900 (original description)
Netocertoides brachiatum Mayer, 1900 (original description)
Niobia Mayer, 1900 (original description)
Niobia Mayer, 1900 (additional source)
Niobia dendrotentacula Mayer, 1900 (original description)
Oceania discoida Mayer, 1900 accepted as Clytia discoida (Mayer, 1900) (original description)
Oceania gelatinosa Mayer, 1900 accepted as Clytia gelatinosa (Mayer, 1900) (original description)
Oceania globosa Mayer, 1900 accepted as Clytia globosa (Mayer, 1900) (original description)
Oceania magnifica Mayer, 1900 accepted as Clytia hemisphaerica (Linnaeus, 1767) (original description)
Phortis lactea Mayer, 1900 accepted as Eirene lactea (Mayer, 1900) (original description)
Pseudoclytia Mayer, 1900 accepted as Clytia Lamouroux, 1812 (original description)
Pseudoclytia pentata Mayer, 1900 accepted as Clytia folleata (McCrady, 1859) (original description)
Rhacostoma dispar Mayer, 1900 accepted as Aequorea forskalea Péron & Lesueur, 1810 (original description)
Stomotoca australis Mayer, 1900 accepted as Amphinema australis (Mayer, 1900) (original description)
Tetracannota Mayer, 1900 accepted as Orchistoma Haeckel, 1879 (original description)
Tetracannota collapsum Mayer, 1900 accepted as Orchistoma pileus (Lesson, 1843) (original description)
Tiara superba Mayer, 1900 accepted as Cirrhitiara superba (Mayer, 1900) (original description)
Zygodactyla cubana Mayer, 1900 accepted as Aequorea cubana (Mayer, 1910) (original description)

Dry Tortugas for Cytaeis gracilis Mayer, 1900 
Dry Tortugas for Dipurena fragilis Mayer, 1900 
Dry Tortugas for Dissonema turrida Mayer, 1900 
Dry Tortugas for Dysmorphosa dubia Mayer, 1900 
Dry Tortugas for Dysmorphosa minuta Mayer, 1900 
Dry Tortugas for Niobia dendrotentacula Mayer, 1900 
Dry Tortugas for Phortis lactea Mayer, 1900 
Dry Tortugas for Stomotoca australis Mayer, 1900 
Dry Tortugas for Tiara superba Mayer, 1900 
Dry Tortugas for Zancleopsis dichotoma (Mayer, 1900) 
Tortugas for Clytia gelatinosa (Mayer, 1900) 
Tortugas for Clytia globosa (Mayer, 1900) 
Tortugas for Oceania discoida Mayer, 1900 

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 for Niobia dendrotentacula Mayer, 1900

The incorrect spelling Niobia dendrotentaculata was used in Vanhöffen (1913) and has been used by my subsequent ... [details]