Figures 1–6. Figs 1, 2 in Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae)

Figures 1–6. Figs 1, 2, Tenagodus modestus, shell. 1: Florida Keys, 56 m, FMNH 296716; greatest length = 48 mm. 2: lectotype of Siliquaria modesta Dall, 1889, Cuba, MCZ 341075; greatest length = 22.8 mm. Figures 3–5, Tenagodus squamatus, shell. 3: Venezuela, Golfo Triste, 46–55 m, FMNH 296706; greatest length = 165 mm. 4: Bermuda, 110 m, FMNH 296697; greatest dimension (diameter of spiral) = 46.6 mm. 5: lectotype of Tenagodus anguillae Mörch 1861, Anguilla; ZMK; greatest length = 11.6 mm. Fig. 6, Tenagodus barbadensis sp. nov., shell; Barbados, 69 m, FMNH 301239; greatest length = 35.8 mm.