Notosinister hervieri Kosuge, 1962

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

Notosinister hervieri Kosuge, 1962

Figure 53

Notosinister hervieri Kosuge 1962a: 81, pl. 10, fig. 1, text fig. 15, 18.

Type locality.

Ankyaba, Setouchi-machi, Amami Islands.

Type material.

Holotype: TZM Mo. 13036 (fide Kosuge 1962a; not seen, illustrated in Higo et al. 2001: 50, G1670). Paratype: NHMUK 1966140: 1 specimen, Amami Islands, Japan .

Original description.

Shell large to medium in size, conical, tapering to the summit, somewhat narrowed at the base. Protoconch of 5 whorls, acuminated conical, with 2 spiral keels overridden by numerous axial threads, brownish red in colour. Mature whorls 16, suture distinct and rather deep, each whorl somewhat inflated and sculptured with 3 equal rows of granules which are connected with fine spiral threads and broad axial columns, median row decreases to a fine thread at its upper 2 or 3 whorls. Granules large, apart by about half of its diameter, 22 to a whorl; on the body whorl, fourth row encircles on the periphery and coloured orange yellow, other 2 faintly granulated keels on the rounded base. Aperture subquadrate, anterior canal long and recurved backward. The colouration isdistinctive, upper row orange yellow, others pinkish or lilac brown.

Shell length: 9.7 mm.

Remarks: This species is closely related to T. loyaltyensis (Hervier) in its sculpture and colour pattern, though differs in having 2 spiral keels on its protoconch in contrast with 1 keel of the latter. This is distributed in Okinawa and Amami Islands, and was formerly treated as T. loyaltyensis by Japanese authors.

Figures

Figure 53. Notosinister hervieri, Kosuge, 1962, Amami Islands, Japan. A Original figure. B-I Paratype, NHMUK 1966140: front (B, C), side (D, E), back (F), aperture (G), protoconch (H), peristome (I). J NHMUK label. Scale bars: B-F: 1 mm; G, I: 0.5 mm; H: 0.1 mm.