Amalda bellonarum Kilburn & Bouchet, 1988

Kantor, Yuri I., Castelin, Magalie, Fedosov, Alexander & Bouchet, Philippe, 2020, The Indo-Pacific Amalda (Neogastropoda, Olivoidea, Ancillariidae) revisited with molecular data, with special emphasis on New Caledonia, European Journal of Taxonomy 706, pp. 1-59 : 53

Amalda bellonarum Kilburn & Bouchet, 1988

Fig. 19 L–M

Amalda bellonarum Kilburn & Bouchet, 1988: 290 , 292, figs 29–32, 48–49.

Amalda (Alocospira) bellonarum – Gratecap 2014: 14, 19, figs 17–18.

Type material

Holotype

CORAL SEA • Bellona Plateau ; 21°25′ S, 159°09′ E; 60 m deep; CHALCAL; stn D56; MNHN IM-2000-1112.

Material examined

One sequenced specimen ( Table 1).

Description

MEASUREMENTS. Shell small (SL up to 15 mm).

SHELL. Oblong-fusiform, with high spire. Primary spire callus not thick, glossy, covering all whorls, including most of protoconch rendering measurements inaccurate, and with distinct spiral lirae (6–7 on penultimate whorl). Secondary callus thin, with indistinct borders, narrow, nearly reaching antepenultimate whorl. Plication plate with 3–4 ridges. Olivoid groove deep and distinct, labral denticle weak, obtuse. Anterior band poorly separated in narrower upper anterior band and twice broader lower band, both nearly flat. Colour uniformly greyish-white with rows of faint yellow-orange spots, one subsutural and one on olivoid band and anterior band.

RADULA. Unknown.

Remarks

The only studied specimen from north Bellona Plateau, collected close to the type locality, differs from the types in having significantly more slender shell, although similar in other details. Besides, that specimen was collected at a significantly larger depth (324–330 m vs 45–240 m).

Distribution

Chesterfield-Bellona Plateau, Coral Sea, New Caledonia, at about 45– 240 m.

Figures

Fig. 19. Sequenced species of Amalda H. Adams & A. Adams, 1853. A–B. Amalda sp., MNHN IM- 2013-63891, SL 20 mm. C–D. A. contusa (Reeve, 1864), MNHN IM-2009-22263, SL 24.9 mm. E. A. optima (G.B. Sowerby III, 1897), MNHN IM-2007-38287. F–G. A. monilifera (Reeve, 1864), MNHN IM-2013-63898, SL 11.7 mm. H–I. A. hinomotoensis (Yokoyama, 1922), MNHN IM-2019-618, SL41.4 mm.J–K.A.hayashii Ninomiya, 1988, MNHNIM-2013-44413,SL38.4 mm.L–M.A.bellonarum Kilburn & Bouchet, 1988, MNHN IM-2007-33273. Shells not to scale.