Original taxon: Dentalium rubescens.
Dredged at 10m, Livorno harbour, Toscana, W. Italy. 34mm. E. Campani legit (IT).
« The reddish Dentalium can serve as switchover point to the following section dedicated to the species posteriorly split ; the sulcus does not exist here yet, but it emerges inside as a median dorsal furrow, rather short, carved in the test without slitting it exteriorly. This arrangement helps to easily recognize the species, which is, moreover, brick-red in colour, not much dark, translucent, very smooth and glossy ; the flexure is light ; the aperture is round, slightly oblique with extremly sharp margins ; no striae can be detected on the surface, neither longitudinal nor transversal. »
Dentalium rubescens in S. Clessin: “Die Familie Dentaliidae”, Systemat. Conchylien-Cabinet Bd.6:Abt.5, Nürnberg 1896. Obviously, this is not the right drawing, the genus Fustiaria being devoid of additional pipe on the posterior end.
« Testa teres, angusta, subarcuata, tenuissima, pellucida, laevigata, nitidissima, hyalina vel rubescens, acuminata, apice haud fisso, sed intus sulco dorsali minuto. »
« Testa teres, angusta, subarcuata, tenuissima, pellucida, laevigata, nitidissima, hyalina vel rubescens, acuminata, apice haud fisso, sed intus sulco dorsali minuto. »
Original pictures provided by S. Clanzig (FR) – (CC BY-NC-SA).