Terebra fenestrata Hinds, 1844

(Figure 11–13)

1844 Terebra fenestrata nov. spec.—Hinds: p. 153.

1935 Terebra torquata Adams & Reeve, 1850 —Nomura: p. 102, pl. VI, fig. 25. 1960 Terebra torquata Adams & Reeve, 1850 —MacNeil: p. 125, pl. 15, figs. 18–19. 1982 Terebra (Strioterebrum) torquata Adams & Reeve, 1850 —Ladd: p. 81–82, pl. 30, fig. 1. 1987 Terebra fenestrata Hinds, 1844 —Bratcher & Cernohorsky: p. 72–74, pl. 15–16, figs. 52a–e. 1999a Terebra fenestrata —Kohn & Arua: p. 122, pl. 4, fig. 68.

1999b Terebra fenestrata Hinds—Kohn & Arua: p. 28–29.

2000 Cinguloterebra fenestrata (Hinds, 1844) —Tsuchida: p. 675, pl. 336, fig. 39. 2007 Cinguloterebra fenestrata (Hinds, 1844) —Terryn: p. 8, pl. 21, figs. 18–20 & pl. 56. 2008 Cinguloterebra fenestrata (Hinds, 1844) —Terryn: p. 804, pl. 697, figs. 5–6. 2011 Triplostephanus fenestratus (Hinds, 1844) —Severns: p. 372, pl. 169, fig. 2.

Material. Anda1 (1) RGM 961855, Tiep2 (2) RGM 961867, RGM 961868.

Characterization. Shell up to 24 mm and 15 whorls. Protoconch mamillate, 1.7–1.8 whorls. First teleoconch whorl outline convex, with strong axial ribs and developing subsutural bands of elongate nodes. Lower band is more narrow and slightly stronger than upper band. No spiral cords are present on bands. Remainder of whorl with flat or weakly convex outline, with sculpture of strong axial ribs and weak spiral cords.

Distribution. Japan to the Philippines and Fiji, subtidal to 60 m (Bratcher & Cernohorsky, 1987). Tropical West Pacific, sand bottom, 40 to 80 m (Tsuchida, 2000). Japan to New Caledonia and Fiji (Terryn, 2007). to Early Pleistocene of Taiwan (Nomura, 1935). Pliocene of Okinawa, Japan (MacNeil, 1960). Pleistocene of Vanuatu (Ladd, 1982). Early Pleistocene of Fiji (Kohn & Arua, 1999a; Kohn & Arua, 1999b).

Remarks. Protoconchs of the material described here are larger and have half a whorl more than those of Recent Terebra fenestrata Hinds, 1844 specimens in the NBC collection. The first teleoconch whorl also has a stronger sculpture and its outline is more convex. However, the rest of the teleoconch matches T. fenestrata Hinds, 1844 and as this species is known to be extremely variable (Bratcher & Cernohorsky, 1987), the material described here is attributed to this species. T. torquata Adams & Reeve, 1850 is synonymized with T. fenestrata Hinds, 1844 (Bratcher & Cernohorsky, 1987), based on the similarity of conchological characters.