Amalda monilifera ( Reeve, 1864 )
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 |
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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.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Genus |
Amalda monilifera ( Reeve, 1864 )
Kantor, Yuri I., Castelin, Magalie, Fedosov, Alexander & Bouchet, Philippe 2020 |
Amalda (Gracilispira) monilifera
Gratecap D. 2016: 6 |
Gracilispira monilifera
Wilson B. 1994: 131 |
Ancillaria monilifera
Ancillaria monilifera Reeve, 1864 : pl. 10, sp. 36. |