Monetaria annulus ( Linnaeus, 1758 )

Zvonareva, Sofya & Kantor, Yuri, 2016, Cheсklist of gastropod molluscs in mangroves of Khanh Hoa province, Vietnam, Zootaxa 4162 (3), pp. 401-437 : 416-417

Monetaria annulus ( Linnaeus, 1758)

Figs 6 C–D

Cypraea annulus Linnaeus, 1758: 723 .

Monetaria annulus: Poppe 2008a: 410 –411, pl. 150, figs 5–10; Zvonareva et al. 2015: 9.

Cypraea (Erosaria) annulus: Okutani 2000: 238 –239, pl. 119, fig. 79.

Monetaria (Ornamentaria) annulus: Thach 2005: 82 , pl. 20, fig. 25.

Material examined. Dam Bay, mangrove plantation, 2 specimens.

Abundance. Rare.

Measurements. Up to 30 mm ( Okutani 2000).

Ecological notes. Occurs on sand, gravel, rocky bottoms and coral reefs in intertidal zone, in shallow water, tide pools, under stones or among seagrasses ( Okutani 2000; Takahiro 2005).

In studied sites it was found on mud surface in lowest part of intertidal zone.

Relation to mangroves. Eurybiotic.

Distribution in Vietnam. Central coast, southern delta ( Thach 2005).

General distribution. Widely distributed in Indo-Pacific, from Japan to South Africa ( Takahiro 2005).

Figures

FIGURE 6. A – B. Monetaria moneta (26 mm). C – D. Monetaria annulus (25 mm). E – F. Sermyla riqueti (10 mm). G – H. Sermyla riqueti (7 mm). I – J. Littoraria lutea (36 mm). K – L. Littoraria lutea (23 mm). M – N. Littoraria lutea (29 mm). O – P. Littoraria ardouiniana (16 mm). Q – R. Littoraria scabra (36 mm). S – T. Littoraria carinifera (18 mm). U – V. Littoraria pallescens (24 mm). W – X. Littoraria pallescens (12 mm). Y – Z. Littoraria ardouiniana (14 mm). AA – AB. Littoraria intermedia (14 mm).