Seraphs minus ( Vincent, 1913 )

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 : 414

Seraphs minus ( Vincent, 1913)

Figure 5A

1913 Terebellum (Seraphs) minus Vincent , p. 19, pl. 1, figs. 23 & 24. Jung 1974, p. 25. = Seraphs (Seraphs) minus Vincent — Jung 1974, p. 25, pl. 6, figs. 9 & 10.

Type material. Holotype — Vincent 1913, pl. 1, figs. 23, 24. The type measures 8 mm in length (Vincent 2013).

Type locality. Landra , Cabinda, Angola [Danian] .

Diagnosis. Known only from immature specimens with the features of juvenile Seraphs , with smooth body whorl and very little ornamentation. This species can be recognised as the only member of the Seraphsidae coming from Angola during the Danian.

Distribution.? PALEOCENE—Danian— Angola Cabinda ( Jung 1974).

Remarks. Jung (1974) noted that the Seraphs minus Vincent, 1913 type material could not be located, and he recommended that the taxon should be considered a nomen dubium as the morphology is, at present, best described as unclear, the type material being a small juvenile specimen. However, given the restricted geographic range, and as the only representative of Seraphs Montfort, 1810 from this region in Africa, it is herein considered taxonomically significant and worthy of recognition.

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).