Triphoris (Mastonia) carteretensis 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) carteretensis Hinds, 1843

Figure 22

Triphoris (Mastonia) carteretensis Hinds 1843b: 20, not illustrated. Illustration available in Hinds (1844): 31, pl. 8, fig. 17.

Type locality.

"Port Carteret, New Ireland" [Papua New Guinea].

Type material.

Syntypes: NHMUK 1879.2.26.205, 1 specimen, Port Carteret, New Ireland (coll. T. Lombe Taylor) .

Original description.

Testa pallida; anfractibus quatuordecim triseriatim granulosis, serie media minima, infra duas superiores sulcatis; apertura subquadrata; sinu laterali patulo. Axis 3 lin.

Geog. Port Carteret, New Ireland; among fine gravel at low water.

The sulcus, which traverses the whorl transversely, will readily distinguish this species.

Translation of the Latin text.

Pale shell, fourteen whorls with three series of granules, the intermediate series is the smallest, under the upper ones with two series; subquadrate aperture, open posterior sinus. Height 3 lines.

Diagnosis.

Syntype 4.6 mm high. Shell cyrtoconoid with nine whorls with flat sides. Such whorls are ornamented by three spiral cords with tubercles at the intersection with the prosocline axial ribs. The second cord develops at mid-teleoconch and is initially a fine thread. Among the main cords, fine spiral threads are visible. A fourth tuberculated cord is present on the last whorl and the base has one more. The peristome shows additional spiral cords between the main ones. The posterior sinus is shallow, the siphonal canal short. The protoconch is missing. The teleoconch is brown to orange with darker interspaces between the spiral cords.

Figures

Figure 22. Triphoris carteretensis Hinds, 1843, Port Carteret, New Ireland, coll. T. Lombe Taylor. A-E, G, H Syntype NHMUK 1879.2.26.205: front (A, B), side (C), back (D), original labes (E), microsculpture (G), peristome (H). F Figure in Hinds 1844. Scale bars: A-D: 1 mm; G-H: 0.5 mm.