Triphoris nigrofuscus A. Adams, 1854

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 nigrofuscus A. Adams, 1854

Figure 6

Triphoris nigrofuscus Adams 1854: 278, not illustrated.

Type locality.

Sydney, Australia.

Type material.

Lectotype: NHMUK 196557, designated by Marshall (1983) (coll. H. Cuming). Paralectotypes: NHMUK 196558: 1 specimen, Sydney, Australia (coll. H. Cuming) .

Original description.

T. testâ pyramidali, nigro-fuscâ; anfractibus planis, triseriatim graulatis, granulis aequalibus, confertis, anfractuum suturis impressis, basi convexâ.

Hab. Sydney, low water, under stones (Mr. Strange).

A black-brown species, with three rows of regular, equal sized granules on each whorl.

Translation of the Latin text.

Pyramidal shell, dark brown; flat whorls with three rows of equal sized dense granules, whorls with impressed sutures, convex base.

Diagnosis.

Lectotype 6.7 mm high. Shell conical with rather flat whorls. Teleoconch of ten whorls, with three strong spiral cords forming nodules at the intersection with the orthocline axial ribs. Such cords are visible starting on the first whorl. A suprasutural smooth cord is visible in the lower half of the shell. Axial riblets are visible between main ribs on the last whorls. No type specimen bears a complete peristome to allow observation. Siphonal canal short; base with two smooth spiral cords. Paucispiral protoconch of two whorls, bearing two strong spiral keels and equally strong spaced axial ribs. Background teleoconch colour brown, with lighter to pearly grey tubercles. Protoconch brown.

Figures

Figure 6. Triphoris nigrofuscus A. Adams, 1851, Sydney, Australia, coll. H. Cuming. A-E, G, H, J, K Lectotype NHMUK 196557: front (A, B), side (C, D), back (E), peristome (G), aperture (H), protoconch (J, K). F, L Paralectotype, NHMUK 196558: front (F), protoconch (L). I Original labels. Scale bars: A-F: 1 mm; G, H: 0.5 mm; J-L: 0.2 mm.