Triphoris cingulatus 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 cingulatus A. Adams, 1854

Figure 3

Triphoris cingulatus Adams 1854: 279, not illustrated.

Type locality.

Red Sea.

Type material.

Syntypes: NHMUK 196567: 1 specimen, Red Sea (coll. H. Cuming) ; NHMUK 196568/1-3: 3 specimens, Red Sea (coll. H. Cuming) .

Additional material.

NHMUK 1878.1.28.452: 1 specimen (coll. H. Adams) .

Original description.

T. testâ elongato-pyramidali, cinereâ; anfractibus sexdecim ad octodecim, spiraliter tricingulatis, cingulâ medianâ minore, interstitiis carinarum longitudinaliter valde striates.

Hab. Red Sea ( Rüppell). Mus. Cuming.

An ashy-grey species, with three smooth keels on each whorl, and the interstices strongly striated: somewhat similar to the T. corrugatus of Hinds.

Translation of the Latin text.

Elongate-pyramidal shell, ash-gray; sixteen to eighteen whorls with three spiral cords whose intermediate is smaller, interstices among carinas strongly axially striated.

Diagnosis.

Syntypes ranging in size from 9.6 to 14.4 mm. A slender conical shell with flat sides. Teleoconch of 15-20 whorls, with two strong smooth spiral cords and a weakly granulated third in between, which appears as a fine thread in the early teleoconch. Fine threads are visible between the cords. No complete peristome is present among the studied material, but the specimen from the H. Adams collection shows additional smooth spiral cords (Fig. 3K ). Siphonal canal well developed. The base bears one strong weakly granulated additional spiral cord, followed by a weak thread. Another weak thread runs from the columella on the siphonal canal. The protoconch is present in a single paratype (Fig. 3J ); it is poorly preserved but clearly multispiral, possibly with two spiral keels on the lower whorls. Spiral cords greyish, with brown interspaces, protoconch and base.

Remarks.

A label accompanying lot NHMUK 1878.1.28.452 specifies that this is not a type specimen "fide Dance, 1965". Indeed, this specimen comes from the H. Adams collection and, thus, is not from the original series of the Cuming collection.

Figures

Figure 3. Triphoris cingulatus A. Adams, 1854. A-E Syntype NHMUK 196567, Red Sea, coll. H. Cuming: front (A, B), side (C), back (D), last whorl (E). F-H, K Specimen ex coll. H. Adams, NHMUK 1878.1.28.452: front (F), side (G), back (H), peristome (K). I Original label. J, L Syntype NHMUK 196568 / 1, Red Sea, coll. H. Cuming: protoconch (J), front (L). Scale bars: A-D, F-H: 2 mm; E: 0.5 mm; J: 0.1 mm; K, L: 1 mm.