Domiporta, CERNOHORSKY, 1970

Fedosov, Alexander, Puillandre, Nicolas, Herrmann, Manfred, Kantor, Yuri, Oliverio, Marco, Dgebuadze, Polina, Modica, Maria Vittoria & Bouchet, Philippe, 2018, The collapse of Mitra: molecular systematics and morphology of the Mitridae (Gastropoda: Neogastropoda), Zoological Journal of the Linnean Society 183, pp. 253-337 : 292

GENUS DOMIPORTA CERNOHORSKY, 1970

( FIGS 16A–E, 17A–D)

Type species: Voluta filaris Linnaeus, 1771 ; OD.

Diagnosis: Shell small to medium sized (12–65 mm), fusiform to elongate-fusiform, with high spire and rather short aperture. Protoconch pointed, narrowly conical, of 2.5–3.5 smooth, slightly convex whorls to large, cyrtoconoid, of nearly five smooth whorls. Suture distinct, impressed. Teleoconch whorls evenly convex in outline, with dominating spiral sculpture represented by regular, elevated, widely interspaced cords that are fine or (usually) strong, sometimes slightly gemmate. Interspaces between cords further sculptured by fine spiral grooves intersected by axial grooves of equal strength, resulting in fine, cancellated background pattern. Siphonal canal moderately long, tapering or robust, with well-developed fasciole, delimited from shell base by distinct narrow waist, or extended concave stretch of shell base. Aperture rather short, elongate, with distinct siphonal notch. Outer lip gently convex, inner lip with three to four fine columellar folds, subequal or adapical strongest. Shell usually white or light with contrasting spiral cords, either uniformly dark brown or dashed-brown. Rachidian from narrow (about 40% of laterals width) with 11 short, blunt cusps to almost as wide as laterals, arched, with 20+ pointed cusps. Laterals broad, bearing 20–35 equal, pointed cusps set on narrow, straight or arched, plate ( Fig. 17A–D).

Distribution: Indo-Pacific, perhaps West Africa ( D. hebes ), shallow subtidal to bathyal depths, on sand.

Species included: Domiporta aglais 3 (Li & Zhang, 2005), D. carnicolor (Reeve, 1844) 1, D. circula (Kiener, 1838) 1 comb. nov., D. daidaleosa (Li & Li, 2005) 3 comb. nov., D. filaris (Linnaeus, 1771) 1, D. gloriola ( Cernohorsky, 1970) 3, D. granatina (Lamarck, 1811) 1, D. hebes (Reeve, 1845) 2 comb. nov., D. latistriata (Herrmann & Salisbury, 2012) 3 comb. nov., D. lichtlei (Herrmann & Salisbury, 2012) 3 comb. nov., C. manoui ( Huang, 2011) 3 comb. nov., D. praestantissima (Röding, 1798) 1, D. shikamai Habe , 19803, D. sigillata (Azuma, 1965) 3, D. valdacantamessae Maxwell, Dekkers, Berschauer & Congdon , 20173.

Remarks: The genus Domiporta is a rather compact and conchologically moderately variable group; however, the colour and sculpture pattern in some species are close to those found in imbricariine genera. For example, D. circula and D. praestantissima are superficially very much like Imbricaria as circumscribed here, while D. granatina and D. carnicolor resemble species of Neocancilla . It was probably this general similarity that led Cernohorsky to assign Domiporta to the subfamily Imbricariinae . Nevertheless, the species of Domiporta mentioned can be recognized by the higher spire, more convex whorls, and the presence of a concavity which delimits the shell base from the siphonal canal. Among Mitrinae , Roseomitra gen. nov.