Triphora tasmanica var. lilacina var. aureovincta Verco, 1910

Albano, Paolo G., Bakker, Piet A. J. & Sabelli, Bruno, 2019, Annotated catalogue of the types of Triphoridae (Mollusca, Gastropoda) in the Natural History Museum of the United Kingdom, London, Zoosystematics and Evolution 95 (1), pp. 161-308 : 161

Triphora tasmanica var. lilacina var. aureovincta Verco, 1910

Figure 106

Triphora tasmanica var. lilacina var. aureovincta Verco 1910: 126, not illustrated.

Type locality.

"off Cape Borda" (Kangaroo Island, South Australia).

Type material.

Holotype: SAM D.13444, fixed by monotypy (not seen, fide Marshall 1983) .

Additional material.

NHMUK 1911.8.12.3-4: 2 specimens (glued on cardboard), Rottnest Is. Western Australia .

Original description.

This exquisitely pretty little shell was taken in perfect condition in 55 fathoms off Cape Borda.

It has a golden band like T. regina, Hedley, but instead of colouring the most anterior spiral of pearls, it ornaments the smooth spiral plait in front of this, and so is found in the suture and on the base of the body-whorl. Its protoconch is that of T. tasmanica, and has not the spicular form of T. regina. It is very deeply-coloured purple, like the var. lilacina, Verco. One example, perfect, of eight whorls, was taken.

Type in my collection.

Remarks.

Marshall (1983) considered this variety a valid taxon: Isotriphora aureovincta . Because the original description clearly refers to a single specimen examined at the time of description, Marshall’s record of the holotype is correct and the material in the NHMUK does not belong to the type series.

Figures

Figure 106. Triphora tasmanica var. lilacina var. aureovincta Verco, 1910, Rottnest Is., Western Australia. A-D, G NHMUK 1911.8.12.3: front (A, B), side (C), protoconch (D), aperture (G). E Original labels. F NHMUK 1911.8.12.4: front (F). Scale bars: A-C, F: 0.5 mm; D: 0.2 mm; G: 0.3 mm.