Amalda monilifera ( Reeve, 1864 )

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 : 47-49

publication ID

https://doi.org/ 10.5852/ejt.2020.706

publication LSID

lsid:zoobank.org:pub:C4C4D130-1EA7-48AA-A664-391DBC59C484

DOI

https://doi.org/10.5281/zenodo.4333174

persistent identifier

https://treatment.plazi.org/id/03A7D504-FFD4-FFFD-642A-FD0AA0D7FE71

treatment provided by

Valdenar

scientific name

Amalda monilifera ( Reeve, 1864 )
status

 

Amalda monilifera ( Reeve, 1864)

Figs 19 View Fig F–G, 20B, E

Ancillaria monilifera Reeve, 1864 View in CoL : pl. 10, sp. 36.

Gracilispira monilifera – Wilson 1994: 131, pl. 29, fig. 16 a–c.

Amalda (Gracilispira) monilifera – Gratecap 2016a: 6, 18, fig. 12.

Type material

Holotype (by monotypy)

WESTERN AUSTRALIA • Swan River ; NHMUK 197933 About NHMUK .

Material examined

One sequenced specimen ( Table 1).

Description

MEASUREMENTS. Shell small (SL up to 18 mm).

SHELL. Ovate-fusiform, with conical spire with nearly straight sides. Primary spire callus thin, semitransparent, smooth, covering all whorls, except protoconch. Protoconch rounded above, boundary with teleoconch indistinct, first whorl diameter 0.65 mm. Secondary callus medium thick on parietal wall and forming distinct parietal pad, extending only to penultimate whorl. Plication plate with 3 weak ridges and still two weaker on columella. Olivoid groove distinct but shallow, labral denticle prominent, narrow triangular. Upper anterior band weakly convex, with low median ridge, lower anterior band nearly flat, smooth. Colour of primary callus light orange, body whorl cloak creamy with light brown anastomosing pattern, subsuturally a row of large, irregular oval brown spots, seen through transparent callus on all teleoconch whorls, olivoid band and lower anterior band with row of brown spots, plication plate creamy.

RADULA (n= 1, Fig. 20B, E View Fig ). With broad, subtriangular lateral teeth with sharp, hook-shaped, curved tip. Central cusp multicuspid, with three major central cusps, median much narrower and slightly shorter than lateral ones, in addition medium long, irregularly shaped, 2–4 cusps between lateral and median cusps, also irregular-shaped fissures in median part of central tooth. Lateral flaps of central tooth dentated, with 3–5 triangular short cusplets.

Remarks

The radula of the species is studied here for the first time. Ninomiya (1990) included this species in his new subgenus Mundaspira (type species Amalda concinna Ninomiya, 1990 ).

Distribution

The Recherche Archipelago in southern Western Australia ( Gratecap 2016a), in 0– 15 m.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neogastropoda

Family

Olividae

Genus

Amalda

Loc

Amalda monilifera ( Reeve, 1864 )

Kantor, Yuri I., Castelin, Magalie, Fedosov, Alexander & Bouchet, Philippe 2020
2020
Loc

Amalda (Gracilispira) monilifera

Gratecap D. 2016: 6
2016
Loc

Gracilispira monilifera

Wilson B. 1994: 131
1994
Loc

Ancillaria monilifera

Ancillaria monilifera Reeve, 1864 : pl. 10, sp. 36.
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