1. Cardium arcuatum Montagu, 1803 [Lucinella divaricata (Linnaeus, 1758)] 1.1 Original hexagonal, blue, card mount and label. 1.2/1.3 Internal and external views of single right valve, Syntype, EXEMS Moll3744. 2. Mytilus avonensis Montagu, 1803 [Anodonta anatina (Linnaeus, 1758)] 2.1 Original label. 2.2 external of EXEMS Moll4037, Syntype. 2.3/2.4 external and internal of left valve of EXEMS Moll4038, Syntype. 3. Mactra boysii Montagu, 1803 [Abra alba (Wood, 1802)] 3.1 Modern box with label indicating Montagu collection. 3.2 external of right valve and 3.3/3.4 internals of left and right valves of EXEMS Moll4287a, Syntype. 4. Helix cingenda Montagu, 1803 [Theba pisana (Müller, 1774)]. 4.1 “Rowley” box and label containing 3 syntypes numbered 4143. 4.2 basal, apical and lateral views of EXEMS Moll4143a, Syntype. 5. Donax complanatus Montagu, 1803. [Donax variegatus (Gmelin, 1791)]. 5.1 “Rowley” label for lot 3720-2. 5.2 4 single valves EXEMS Moll3720–2, Syntypes. 5.3 External view of left valve, EXEMS Moll3720. 5.4 Internal view of right valve, EXEMS Moll3722