Figure 97 from: Albano PG, Bakker PAJ, Sabelli B (2019) Annotated catalogue of the types of Triphoridae (Mollusca, Gastropoda) in the Natural History Museum of the United Kingdom, London. Zoosystematics and Evolution 95(1): 161-308. https://doi.org/10.3897/zse.95.32803

Figure 97 Triphoraprinceps G.B. Sowerby III, 1904, unknown locality. A Original figure. B–E, G, H Holotype, NHMUK 1904.12.23.147: front (B), side (C), back (D), original labels (E), protoconch (G), peristome (H). F, I Specimen NHMUK 196547 cited by Sowerby as "very small young shell" but belonging to a different species: front (F), original labels (I). Scale bars: B–D: 10 mm; F: 5 mm.