Triphoris granulatus Adams & Reeve, 1850

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

Triphoris granulatus Adams & Reeve, 1850

Figure 11

Triphoris granulatus Adams and Reeve 1850: 46, pl. 11, fig. 33a, b.

Type locality.

"China Sea".

Type material.

Not found, see remarks.

Original description.

Triph. testâ turritâ, medio subcylindraceâ, anfractibus duodecim ad quatuordecim, triseriatim granulatis, granulis regularibus confertis, anfractuum suturis subimpressis; sordidè albâ.

Hab. China Sea.

Distinguished by its short, cylindrical form, and by the precise arrangement of the granules with which it is sculptured.

Translation of the Latin text.

A turreted subcylindrical triphorid with twelve to fourteen triseriated whorls with regular granules and subimpressed sutures; dirty white.

Hab. China Sea

Remarks.

We found one specimen from the Cuming collection ( NHMUK 1878.1.28.422). Its label specifies that it comes from the collection of H. Adams. This specimen has slightly fewer whorls (11) than stated in the original description (12-14), but has the fourth to sixth spiral cords (clearly visible on the base) completely smooth, while the original figure (Adams and Reeve 1850: pl. 11, fig. 33b) clearly shows that cord four and five bear well-defined granules. Therefore, we doubt that this specimen belongs to the type series and suggest that T. granulatus should be considered a nomen dubium.

Figures

Figure 11. Triphora sp. (labelled as Triphoris granulatus Adams & Reeve, 1850). A-H, J-L NHMUK 1878.1.28.422, China Sea, coll. H. Adams in coll. H. Cuming: front (A, B), side (C, D), back (E), protoconch (F, G), original labels (H), aperture (J), peristome (K, L). I Original figures. Scale bars: A-E: 1 mm; F, G: 0.2 mm; J-L: 0.5 mm.