« Protoconch brown; teleoconch with white and light brown flammules, base of the last whorl and siphonal canal light brown. Periostracum very thin, translucent. […] The species is immediately identifiable based on its flammules and its protoconch with large meshes. In the Atlantic, Cosmotriphora canarica [today Nototriphora] similarly bears coloured flammules, but its protoconch shows smaller meshes; its teleoconch is more conical in shape, with a more marked and canaliculated suture, and its axial costae are stronger. » – P. Bouchet: “Les Triphoridae de Méditerranée et du proche Atlantique (Mollusca, Gastropoda)”, Lavori SIM vol.21, Milano 1984 (1985), p.40.

The pale first row of nodules on the last whorl could be a specific feature. Above and below: 60m deep, Għar Ċumnija, Ras ir-Reqqa, Żebbuġ, Gozo island, Malta. 5,1mm. Original pictures provided by A. Nappo (HR) – (CC BY-NC-SA).

Protoconch: the first spiral ridge that appears is the abapical one (first whorl); the second one is born from the first at circa 3,5 whorls from the egg-shell.