Triforis aspera Jeffreys, 1885. A–E, G, H, M, S Syntype NHMUK 1885.11.5.2673, Porcupine expedition, unknown locality: front (A), side (B), back (C), protoconch (D, E), aperture (G), peristome (H), microsculpture (M), original labels (S). F, Q: Syntype NHMUK 1885.11.5.3936, Porcupine Expedition, “Coast of Spain”. I, J, R Syntypes NHMUK 1885.11.5.3937–8, Porcupine Expedition, “Atlantic” (I is not T. aspera). K–L, P Syntypes NHMUK 1885.11.5.3934–5, Adventure Bank, Sicily Channel. N, O Syntype NHMUK 1885.11.5.2674, Porcupine expedition station 16. Scale bars: A–C, F: 2 mm; D, E: 0.2 mm; G–J: 1 mm; M: 0.5 mm.