Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae) Author Maxwell, Stephen J. 0000-0002-4328-6171 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Stephen. maxwell @ my. jcu. edu. au; https: // orcid. org / 0000 - 0002 - 4328 - 6171 tephen.maxwell@my.jcu.edu.au Author Rymer, Tasmin L. 0000-0002-9963-6345 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Centre for Tropical Environmental and Sustainability Sciences, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Tamsin. rymer @ jcu. edu. au; https: // orcid. org / 0000 - 0002 - 9963 - 6345 amsin.rymer@jcu.edu.au Author Congdon, Bradley C. 0000-0002-8751-0892 College of Science and Engineering, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & Centre for Tropical Environmental and Sustainability Sciences, James Cook University, P. O. Box 6811, Cairns, Queensland 4870, Australia. & brad. congdon @ jcu. edu. au; https: // orcid. org / 0000 - 0002 - 8751 - 0892 brad.congdon@jcu.edu.au text Zootaxa 2021 2021-06-22 4990 3 401 453 journal article 5563 10.11646/zootaxa.4990.3.1 6a6dd89d-6b74-47ed-ba8e-71b526355b69 1175-5326 5026777 70610FEE-4497-4804-817C-CEC2D66DDBFE Seraphs pliciferus ( Bayan, 1870 ) Figure 5E 1870 Terebellum pliciferum Bayan , p. 481, no. 25. = Terebellum ( Mauryna ) placiferum Bayan — de Gregorio 1880 , p. 25 . Dainelli 1905 , p. 76 . Dainelli 1912 , p. 57 , no. 140. = Terebellum ( Seraphs ) pliciferum Bayan — Jung 1974 , p. 24 . = Terebellum ( Mauryna ) placiferum plicifera Bayan — de Gregorio 1880 , p. 25 , pl. I, fig. 28, pl. V, fig. 31. de Gregorio 1896 , p. 36 . = Mauryna plicifera Bayan — Dainelli 1905 , p. 76 . = Seraphs ( Seraphs ) plicifer Bayan — Jung 1974 , p. 24 , pl. 7, figs. 1–17. = Seraphs plicifer Bayan —Quaggioto & Mellini 2008, p. 48, pl. 1, fig. 28, pl. V, figs. 23, 30, 31. 1880 Terebellum ( Mauryna ) placiferum plicifera transeuns de Gregorio, p. 25, pl. V, fig. 23. = Mauryna plicifera transeuns de Gregorio — Jung 1974 , p. 24 . 1880 Terebellum ( Mauryna ) placiferum protoelegans de Gregorio , p. 25, pl. I, figs. 25, 26. = Mauryna protoelegans de Gregorio — Dainelli 1905 , p. 76 . Jung 1974 , p. 24 . Type material. Lectotype — MNHN G2100 ( Jung 1974 ). The type measures 33.7 mm in length, with a width of 13.9 mm ( Jung 1974 ). Type locality. Croce Grande , San Giovanni Ilarione , Italy [Lutetian] . Diagnosis. The shell is slender with variably wide axial swellings that are parallel to the undulating growth lines. The aperture is smooth with an unmargined labrum, and labium with an obsolete columella. Distribution. OLIGOCENE— France Gaas, Aquitaine Basin ( Jung 1974 ). EOCENE—Lutetian— Italy Croce Grande near San Giovanni Ilarione ( de Gregorio 1880 ; Jung 1974 ). Yugoslavia ( Jung 1974 ). Remarks. Seraphs pliciferus is the only species of Seraphs with axial sculpture on the body whorl. This sculpture is highly variable, and a number of names have been applied to the variations in sculpture. The distinctive sculpture of this species may, in later revisions, lead to it being placed in its own genus and these forms recognised as distinctive species.