Aclis tricarinata R. B. Watson, 1897 accepted as Pseudoscilla bilirata (de Folin, 1870) (original description)
Aclis trilineata R. B. Watson, 1897 (original description)
Aclis vitrea R. B. Watson, 1897 (original description)
Amphisphyra flava R. B. Watson, 1897 accepted as Diaphana flava (R. B. Watson, 1897) (original description)
Bittium depauperatum R. B. Watson, 1897 (original description)
Bittium incile R. B. Watson, 1897 (original description)
Caecum atlantidis R. B. Watson, 1897 (original description)
Coralliophaga johnsoni R. B. Watson, 1897 accepted as Coralliophaga lithophagella (Lamarck, 1819) (original description)
Cylichna spreta R. B. Watson, 1897 accepted as Pyrunculus spretus (R. B. Watson, 1897) (original description)
Doridium maderense R. B. Watson, 1897 accepted as Melanochlamys maderensis (R. B. Watson, 1897) (original description)
Eulima badia R. B. Watson, 1897 accepted as Sticteulima badia (R. B. Watson, 1897) (original description)
Eulima fulva R. B. Watson, 1897 accepted as Fusceulima fulva (R. B. Watson, 1897) (original description)
Eulima inconspicua R. B. Watson, 1897 (original description)
Eulima rhaphium R. B. Watson, 1897 accepted as Vitreolina philippi (de Rayneval & Ponzi, 1854) (original description)
Eulima sordida R. B. Watson, 1897 accepted as Fusceulima sordida (R. B. Watson, 1897) (original description)
Eulima trunca R. B. Watson, 1897 accepted as Melanella trunca (R. B. Watson, 1897) (original description)
Montacuta triangularis R. B. Watson, 1897 accepted as Kurtiella triangularis (R. B. Watson, 1897) (original description)
Murex medicago R. B. Watson, 1897 accepted as Murexsul aradasii (Monterosato, 1883) (original description)
Nassa antiquata R. B. Watson, 1897 accepted as Nassarius recidivus (E. von Martens, 1876) accepted as Tritia recidiva (E. von Martens, 1876) (original description)
Natica (Nacca) furva R. B. Watson, 1897 accepted as Natica furva R. B. Watson, 1897 (original description)
Odostomia (Turbonilla) undata R. B. Watson, 1897 accepted as Trabecula jeffreysiana Monterosato, 1884 (original description)
Odostomia omphaloessa R. B. Watson, 1897 (original description)
Philine complanata R. B. Watson, 1897 (original description)
Philine desmotis R. B. Watson, 1897 (original description)
Philine trachyostraca R. B. Watson, 1897 accepted as Philine retifera (Forbes, 1844) accepted as Philine vestita (R. A. Philippi, 1840) (original description)
Pleurobranchus dautzenbergi R. B. Watson, 1897 accepted as Berthella dautzenbergi (R. B. Watson, 1897) (original description)
Pleurobranchus lowei R. B. Watson, 1897 accepted as Haliotinella patinaria Guppy, 1876 (original description)
Rissoa (Cingula) innominata R. B. Watson, 1897 accepted as Crisilla innominata (R. B. Watson, 1897) (original description)
Rissoa spadix R. B. Watson, 1897 accepted as Crisilla spadix (R. B. Watson, 1897) (original description)
Scalaria aspera R. B. Watson, 1897 accepted as Punctiscala cerigottana (Sturany, 1896) (original description)
Scalaria fischeri R. B. Watson, 1897 accepted as Epitonium fischeri (R. B. Watson, 1897) (original description)
Scalaria rhips R. B. Watson, 1897 accepted as Epitonium rhips (R. B. Watson, 1897) (original description)
Scalaria smithii R. B. Watson, 1897 accepted as Epitonium tryoni (de Boury, 1913) (original description)
Schismope depressa R. B. Watson, 1897 accepted as Sinezona cingulata (O. G. Costa, 1861) (original description)
Setia innominata (R. B. Watson, 1897) accepted as Crisilla innominata (R. B. Watson, 1897) (original description)
Teredo dallii R. B. Watson, 1897 (original description)
Trophon lowei R. B. Watson, 1897 accepted as Cytharomorula grayi (Dall, 1889) (original description)

Madeiran Exclusive Economic Zone for Aclis trilineata R. B. Watson, 1897 
Madeiran Exclusive Economic Zone for Aclis vitrea R. B. Watson, 1897 
Madeiran Exclusive Economic Zone for Scalaria fischeri R. B. Watson, 1897 
Madeiran Exclusive Economic Zone for Scalaria smithii R. B. Watson, 1897