Seraphsinae, Maxwell & Rymer & Congdon, 2021

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 : 407

Seraphsinae new subfamily

( Seraphsidae )

Type genus. Seraphs Montfort, 1810, p. 375 .

RegNum Registration Number. 676.

Reference Phylogeny. Figure 3 .

Definition. The maximum clade consisting of Seraphs sopitus Brander, 1766 and all species that share a more recent common ancestor with it than with Mauryna plicata ( d’Archiac & Haime, 1853) , Paraseraphs tetanus Jung, 1974 or Terebellum terebellum ( Linnaeus, 1758) .

Diagnosis. The shell is long and narrow, with the last whorl extending over much of the earlier whorls. The stromboidal notch is not well-developed. The involute shell is without a posterior canal. The columella is smooth.

Composition. The clade containing the three genera Seraphs , Diameza and Miniseraphs , the content of which is detailed herein. It excludes the Pseudoterebellinae and the genus Mauryna .

Remarks. This clade unites the involute members of Seraphsidae that have historically been accepted as related ( Jung 1974). Jung (1974) placed Diameza and Miniseraphs as subgenera of Seraphs . Recently Caze et al. (2010) elevated Diameza to include both subgenera Diameza and Miniseraphs and excluded Seraphs . Diameza and Miniseraphs form a monophyletic clade, but defining that clade is systematically problematic until its ancestral lineages are better understood.

Figures

FIGURE 3. The clade Seraphsidae Jung, 1974 derived from character analysis and contextualised with the fossil record showing the ancestral Seraphsinae and crown clade Pseudoterebellinae both new subfamilies.