Seraphs pliciferus ( Bayan, 1870 )

Maxwell, Stephen J., Rymer, Tasmin L. & Congdon, Bradley C., 2021, Resolving phylogenetic and classical nomenclature: A revision of Seraphsidae Jung, 1974 (Gastropoda: Neostromboidae), Zootaxa 4990 (3), pp. 401-453 : 416

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.

Figures

FIGURE 5. Seraphs Montfort, 1810. A. Seraphs minus (Vincent, 1913), length 7.1 mm (Jung 1974, pl. 6, figs. 9, 10). B. Seraphs naricus (Vredenberg, 1925), holotype, GSI 12614, length 38.6 mm (Jung 1974, pl. 6, figs. 20–22). C. Seraphs olivaceus (Cossmann, 1889), MNHN A28577, Collection de Paleontologie, Paris, length 32 mm (Caze et al. 2010, figs. 6H, I). D. Seraphs peterjungi Caze et al., 2010, holotype, MNHN A28578, Collection de Paleontologie, length 16 mm (Caze et al. 2010, figs. 15J, K, N). E. Seraphs placiferus (Bayan, 1870), lectotype, MNHN G2100, length 33.7 mm (Jung 1974, pl. 7, figs. 5–7). F. Seraphs sopita (Brander, 1766), lectotype, NHMUK GG21010, length 26.4 mm (Jung 1974, pl. 1, figs. 1–3). G. Seraphs squamosus (Martin, 1914), Lectotype, RGM, Leiden St10344, length 37.1 mm (Jung 1974, pl. 6, figs. 17–19). H. Seraphs striatus (von Koenen, 1889), holotype, length 38.5 mm (von Koenen 1889, pl. I, figs. 7A–C). I. Seraphs subconvolutus (d’Orbigny, 1852), lectotype, MNHN UBT65-2-120, length 28 mm (Caze et al. 2010, figs. 14A, B). J. Seraphs volutatus (Brander, 1766), MNHN A28776, Collection de Paleontologie, Paris, length 17 mm (Caze et al. 2010, figs. 6A–C).