Triphoris (Mastonia) vulpinus Hinds, 1843

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 (Mastonia) vulpinus Hinds, 1843

Figure 41

Triphoris (Mastonia) vulpinus Hinds 1843b: 19, not illustrated. Illustration available in Hinds (1844): 30, pl. 8, fig. 13.

Type locality.

New Ireland [Papua New Guinea].

Type material.

Syntypes: NHMUK 1879.2.26.199: 1 specimen, New Ireland (coll. T. Lombe Taylor) .

Original description.

Testa nigricante; anfractibus quatuordecim tricarinatis; carina inferiore albida; apertura rotundata; sinu laterali subnullo. Axis 3 lin.

Geog. New Ireland; found, with other small shells, among fine gravel about low-water mark.

Translation of the Latin text.

Shell black; 14 whorls with three cords; the lowest cord white; rounded aperture; posterior sinus nearly absent. Height 3 lines.

Diagnosis.

Syntype 5.5 mm high. Shell strongly cyrtoconoid, broad. Teleoconch of 11 flat whorls with two main smooth spiral cords. A third develops in between early in the teleoconch. Several fine threads run between the main cords. There are faint prosocline axial ribs which form tubercles on the fourth spiral cord visible on the base which has a fifth smooth cord too. The peristome is incomplete in the lectotype, but likely bears additional spiral cords. Also, the apex is incomplete, but clearly bears a dark-brown multispiral protoconch whose last two whorls have two strong keels and axial riblets. Teleoconch brown with white to pearly flammulae particularly evident on the abapical spiral cord.

Remarks.

Hinds (1843a) introduced the genus Mastonia without designating the type species but listing as first species T. vulpinus . The type species designation was later done by Jousseaume (1884) who selected T. ruber Hinds, 1843. Such designation is valid ( ICZN 1999, Article 69.1) because T. ruber is an originally included nominal species ( ICZN 1999, Article 67.2).

Figures

Figure 41. Triphoris vulpinus Hinds, 1843, New Ireland, coll. T. Lombe Taylor. A-J Syntype NHMUK 1879.2.26.199: front (A, B), side (C, D), back (E), protoconch (F, G), original labels (H), peristome (I), aperture (J). K Figure in Hinds 1844. Scale bars: A-E: 1 mm; F, G: 0.1 mm; I, J: 0.5 mm.