Bittium cinereoflavum Mörch, 1876 accepted as Cerithiopsis cinereoflava (Mörch, 1876) (original description)
Bittium galactis Mörch, 1876 (original description)
Cerithidea minor Mörch, 1876 accepted as Cerithideopsis costata (da Costa, 1778) (original description)
Cerithidea pupoidea Mörch, 1876 accepted as Cerithideopsis costata (da Costa, 1778) (original description)
Cerithium (Bittium) oryza Mörch, 1876 accepted as Ittibittium oryza (Mörch, 1876) (original description)
Cerithium (Vertagus) stercusmuscarum Mörch, 1876 accepted as Cerithium muscarum Say, 1832 (original description)
Cerithium (Vertagus) stercusmuscarum var. minor Mörch, 1876 accepted as Cerithium muscarum Say, 1832 (original description)
Cerithium alabastrulum Mörch, 1876 accepted as Cerithiopsis alabastrula (Mörch, 1876) (original description)
Cerithium alabastrum Mörch, 1876 accepted as Cerithium lutosum Menke, 1828 (original description)
Cerithium antillarum Mörch, 1876 accepted as Cerithium atratum (Born, 1778) (original description)
Cerithium atratum var. tenuis Mörch, 1876 accepted as Cerithium atratum (Born, 1778) (original description)
Cerithium eburneum f. minor Mörch, 1876 accepted as Cerithium eburneum Bruguière, 1792 (original description)
Cerithium floridanum Mörch, 1876 accepted as Cerithium atratum (Born, 1778) (original description)
Cerithium rawsoni Mörch, 1876 (original description)
Cerithium sagrae var. pallida Mörch, 1876 accepted as Cerithium lutosum Menke, 1828 (original description)
Cerithium versicolor var. grisea Mörch, 1876 accepted as Cerithium lutosum Menke, 1828 (original description)
Cingulina carinata Mörch, 1876 accepted as Pyramidelloides carinatus (Mörch, 1876) (original description)
Littorina (Littorinopsis) Mörch, 1876 accepted as Littoraria (Littorinopsis) Mörch, 1876 accepted as Littoraria J. E. Gray, 1833 (original description)
Littorina (Melarhaphe) floccosa Mörch, 1876 accepted as Echinolittorina interrupta (R. A. Philippi, 1847) (original description)
Littorina angustior Mörch, 1876 accepted as Echinolittorina angustior (Mörch, 1876) (original description)
Littorina floccosa glaucocincta Mörch, 1876 accepted as Echinolittorina jamaicensis (C. B. Adams, 1850) (original description)
Littorina riisei Mörch, 1876 accepted as Echinolittorina jamaicensis (C. B. Adams, 1850) (original description)
Modulus canaliculatus Mörch, 1876 accepted as Modulus modulus (Linnaeus, 1758) (original description)
Modulus convexior Mörch, 1876 accepted as Modulus modulus (Linnaeus, 1758) (original description)
Modulus krebsii Mörch, 1876 accepted as Modulus modulus (Linnaeus, 1758) (original description)
Modulus pisum Mörch, 1876 accepted as Modulus modulus (Linnaeus, 1758) (original description)
Planaxis nucleola Mörch, 1876 accepted as Supplanaxis nucleus (Bruguière, 1789) (original description)
Pyrazus (Lampanella) Mörch, 1876 accepted as Lampanella Mörch, 1876 (original description)
Rissoa emaciata Mörch, 1876 accepted as Alvania emaciata (Mörch, 1876) (original description)
Rissoa gradatula Mörch, 1876 accepted as Mumiola gradatula (Mörch, 1876) (original description)
Rissoina (Phosinella) Mörch, 1876 accepted as Phosinella Mörch, 1876 (original description)
Rissoina (Zebina) vitrinella Mörch, 1876 accepted as Zebina vitrinella (Mörch, 1876) (original description)
Rissoina (Zebinella) Mörch, 1876 accepted as Zebinella Mörch, 1876 (original description)
Rissoina cancellata var. elongata Mörch, 1876 accepted as Rissoina cancellata R. A. Philippi, 1847 accepted as Phosinella cancellata (R. A. Philippi, 1847) (original description)
Rissoina krebsii Mörch, 1876 (original description)
Rissoina sigmifer Mörch, 1876 accepted as Zebinella sigmifer (Mörch, 1876) (original description)
Turritella (Torcula) exoleta var. gracilior Mörch, 1876 accepted as Turritella exoleta (Linnaeus, 1758) (original description)
Zebinella Mörch, 1876 (original description)

Antilles for Cerithidea pupoidea Mörch, 1876 
Barbados for Cerithium rawsoni Mörch, 1876 
Bermudian Exclusive Economic Zone for Modulus pisum Mörch, 1876 
Caribbean Province for Cerithium (Bittium) oryza Mörch, 1876 
Caribbean Province for Cerithium alabastrulum Mörch, 1876 
Cuban Exclusive Economic Zone for Cerithidea minor Mörch, 1876 
Cuban Exclusive Economic Zone for Littorina angustior Mörch, 1876 
Lesser Antilles for Modulus krebsii Mörch, 1876 
Lesser Antilles for Modulus pisum Mörch, 1876 
Saint Croix for Planaxis nucleola Mörch, 1876 
Saint Thomas for Cerithium alabastrum Mörch, 1876 
Virgin Islands for Modulus convexior Mörch, 1876 
West Indies for Modulus canaliculatus Mörch, 1876