Triphora brevis Thiele, 1925

Albano, Paolo G. & Bakker, Piet A. J., 2016, Annotated catalogue of the types of Triphoridae (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, with lectotype designations, Zoosystematics and Evolution 92 (1), pp. 33-78 : 36

Taxon classification Animalia Caenogastropoda Triphoridae

Triphora brevis Thiele, 1925 Figure 4

Triphora brevis Thiele, 1925: 129 (95), plate XXII (X), figure 20.

Type specimens.

Holotype: ZMB/Moll no. 109271, fixed by monotypy.

Type locality.

"Station 101 [Algoa-Bucht]" (South Africa).

Original description.

Eine kleine und anscheinend ausgewachsene Schale von Station 101 (Algoa-Bucht) scheint gleichfalls zu einer noch nicht bekannten Art zu gehören. Sie ist bräunlich, ziemlich kurz spindelförmig, oben kurz zugespitzt, von den 8 Windungen zeigt die erste einen Besatz mit herablaufenden, zweimal stark geknickten Fäden, die folgenden haben anfangs 2, dann 3 Reihen starker Knoten. Bei der letzten ist der Reifen an der unteren Kante noch deutlich knotig, darunter finden sich noch 2 glatte Reifen. Spindelfortsatz ziemlich kurz und breit, Mündung klein, Mundrand unten etwas vorgezogen. Höhe 3,3 mm, Durchmesser 1,25 mm.

Translation.

One small and seemingly adult shell from station 101 (Algoa Bay) seems also to belong to a not yet known species. It is brownish, quite small and fusiform, with an obtuse top; of the eight whorls, the first shows two strong undulated cords, while the following whorls have initially 2, then 3 cords with tubercles. The last whorl is still clearly tubercled, but two smooth cords are present below it. Siphonal canal quite short and large, aperture small; the aperture is slightly rounded. Height 3.3 mm, diameter 1.25 mm.

Diagnosis.

Holotype height 3.4 mm. Conical shell, with deep sutures. Teleoconch of five whorls, which have three tubercled spiral cords: the second develops later and is fully visible at half shell height. A very fine suprasutural smooth cord is also present. The last whorl has a fourth weakly tubercled cord, and the base has a further smooth spiral cord. Peristome simple, without bifurcating cords. Paucispiral large apex of two whorls. The first whorl is smooth, while the second is slightly angulated and ornamented by flexuous axial ribs. Colour light brown, but the holotype is worn and the colour may be faded.