Triphoris scitulus 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 scitulus A. Adams, 1854

Figure 8

Triphoris scitulus Adams 1854: 278, not illustrated.

Type locality.

Port Lincoln, Australia.

Type material.

Lectotype: NHMUK 196561, designated by Marshall (1983) (coll. H. Cuming). Paralectotypes: NHMUK 196562/1-2: 2 specimens, Port Lincoln, Australia (coll. H. Cuming) .

Original description.

T. testâ subulato-pyramidali, albidâ, nitidâ, subpellucidâ, suturis rufo-tinctis; anfractibus convexiusculis, cingulis tribus nodorum ornatis, cingulâ medianâ majore moniliformi, nodorum interstitiis fuscis, anfractu ultimo basi fusco; canali brevi, aperto.

Hab. Port Lincoln. Mus. Cuming.

A semipellucid, white and brown species, with the middle row of nodules very prominent.

Translation of the Latin text.

Subulate-pyramidal shell, light-coloured, near transparent, reddish sutures; whorls a little convex, with three nodulose spiral cords whose moniliform median is larger, brown interspaces among nodules, the last whorl with brown base; open anterior short siphonal canal.

Diagnosis.

Lectotype 4.9 mm high. Shell conical, with flat sides. Teleoconch of 12 whorls with three spiral cords with strong nodules at the intersection with prosocline axial ribs. The second cord appears at mid shell height and is very narrow. The third cord is more prominent than the others and gives the shell a distinct profile. A smooth suprasutural cord is visible, as fine axial threads between the main ribs. Peristome with a shallow posterior sinus and no additional spiral cords. Siphonal canal short. The base has one additional smooth cord. Multispiral protoconch of three whorls; the first with numerous fine granules, whereas the following two are smooth with the exception of a series of elongated supra- and subsutural granules. Teleoconch and protoconch hyaline, with brown base.

Remarks.

Triphoris pfeifferi Crosse & Fischer, 1865 should be considered a junior synonym (see p. 180) as already suggested by Marshall (1983).

Figures

Figure 8. Triphoris scitulus A. Adams, 1851, Port Lincoln, S. Australia, coll. H. Cuming. A-H, J Lectotype NHMUK 196561: front (A, B), side (C, D), back (E), protoconch (F), peristome (G, H), aperture (J). I Paralectotype, NHMUK 196562 / 1: front (I). K Original labels. Scale bars: A-E: 1 mm; F: 0.1 mm; G-H, J: 0.4 mm; I: 0.5 mm.