Taxon profile
species
Austromitra rottnestensis Marrow, 2023
kingdom Animalia - animals » phylum Mollusca - mollusks » class Gastropoda - gastropods » order Neogastropoda » family Costellariidae » genus Austromitra
ID: 2015876
pID: 583574
Taxonomic rank: 150
Author of the record: Delsing Jan
Created: 2023-12-09 19:05:49 - User Delsing Jan
Data last updated: 2023-12-09 19:05:50
URL: https://www.biolib.cz/en/taxon/id2015876/
Text function: [[t:2015876;<em>Austromitra rottnestensis</em>]]
[[t:2015876;<em>Austromitra rottnestensis</em>]] Marrow, 2023
Reference: <a href="https://www.biolib.cz/en/taxon/id2015876/"><em>Austromitra rottnestensis</em></a>
pID: 583574
Taxonomic rank: 150
Author of the record: Delsing Jan
Created: 2023-12-09 19:05:49 - User Delsing Jan
Data last updated: 2023-12-09 19:05:50
URL: https://www.biolib.cz/en/taxon/id2015876/
Text function: [[t:2015876;<em>Austromitra rottnestensis</em>]]
[[t:2015876;<em>Austromitra rottnestensis</em>]] Marrow, 2023
Reference: <a href="https://www.biolib.cz/en/taxon/id2015876/"><em>Austromitra rottnestensis</em></a>
Data source: WORMS.
Images
Author: Marrow, M.P.
Taxon in country check-lists*
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Description
Author: Jan Delsing
Text ID: 128851
Text Type: 1
Page: 0
Created: 2023-12-09 20:33:48 - User Delsing Jan
Last change: 2023-12-09 20:33:46 - User Delsing Jan
Language: EN
Text function: [[t:2015876,textblock=128851,elang=EN;Description]]
Text ID: 128851
Text Type: 1
Page: 0
Created: 2023-12-09 20:33:48 - User Delsing Jan
Last change: 2023-12-09 20:33:46 - User Delsing Jan
Language: EN
Text function: [[t:2015876,textblock=128851,elang=EN;Description]]
Description
Shell fusiform, 5 mm, spire profile roughly flat. Approximately 5,5 whorls. Protoconch rounded and smooth of 1,5 to 2 whorls. Teleoconch whorls convex, sculptured reticulately with approx. 13 strong axial folds on the penultimate whorl) and approx. 4 weaker spirals on the penultimate whorl. Final whorl strongly contracted anteriorly, with axials becoming obsolete towards the base, strong spiral cords around the anterior pillar. Aperture approx. 45 % total length of shell. Colour pink with white band framed with fine tan lines at the suture. 3-4 columella plaits, much stronger posteriorly. Inner lip indistinct and pink, parietal whorl smooth. Outer lip rounded and anterior canal straight. Internal lirae absent.
Type Material
Holotype: H 4.66 x W 2.04 x Ah 2.2 mm. Australia, Western Australia, S of Cape Leeuwin (34°41'S, 114°66'E). Dredged at 73-144 m. CSIRO HMAS 'Gascoyne' Expedition, Station G3/160/62, August 8, 1962. (Text-Fig. 6; PL 4 Fig. 2). WAM SI 12380.
Paratypes. Paratype 1: Western Australia, NW of Beagle Island (29°20'S, 114°05'E). Dredged at 210-240 m. Collected by BARRY WILSON, CSIRO HMAS "Diamantina" Expedition Station DMI/72/57, March 20, 1972. WAM S67724. Paratype 2: Australia, Western Australia, W of Rottnest Island (32°01'S, 115°30'E). Dredged at 120 m. Collected by BARRY WILSON, CSIRO HMAS "Diamantina" Expedition IV, Station DMI/70, December 2,1970. WAM S67723. Paratype 3: Australia, Western Australia, S of Cape Leeuwin (34°41'S, 114°66'E). Dredged at 73-144 m. CSIRO HMAS "Gascoyne" Expedition, Station G3/160/62, August 8, 1962. AM C596058.
Distribution and Habitat
Australia, Western Australia, S of Cape Leeuwin to W of Rottnest Island. Dredged in sand and gravel at 120 m.
Etymology
The species is named after Rottnest Island, a location where a number of Austromitra species including this new species have been found in recent dredgings.
Discussion
This species is compared most closely to Austromitra diamantina n. sp. and Austromitra leeuwinensis n. sp. , the strong, round axial ribs and colour combination differentiate the species however.
Shell fusiform, 5 mm, spire profile roughly flat. Approximately 5,5 whorls. Protoconch rounded and smooth of 1,5 to 2 whorls. Teleoconch whorls convex, sculptured reticulately with approx. 13 strong axial folds on the penultimate whorl) and approx. 4 weaker spirals on the penultimate whorl. Final whorl strongly contracted anteriorly, with axials becoming obsolete towards the base, strong spiral cords around the anterior pillar. Aperture approx. 45 % total length of shell. Colour pink with white band framed with fine tan lines at the suture. 3-4 columella plaits, much stronger posteriorly. Inner lip indistinct and pink, parietal whorl smooth. Outer lip rounded and anterior canal straight. Internal lirae absent.
Type Material
Holotype: H 4.66 x W 2.04 x Ah 2.2 mm. Australia, Western Australia, S of Cape Leeuwin (34°41'S, 114°66'E). Dredged at 73-144 m. CSIRO HMAS 'Gascoyne' Expedition, Station G3/160/62, August 8, 1962. (Text-Fig. 6; PL 4 Fig. 2). WAM SI 12380.
Paratypes. Paratype 1: Western Australia, NW of Beagle Island (29°20'S, 114°05'E). Dredged at 210-240 m. Collected by BARRY WILSON, CSIRO HMAS "Diamantina" Expedition Station DMI/72/57, March 20, 1972. WAM S67724. Paratype 2: Australia, Western Australia, W of Rottnest Island (32°01'S, 115°30'E). Dredged at 120 m. Collected by BARRY WILSON, CSIRO HMAS "Diamantina" Expedition IV, Station DMI/70, December 2,1970. WAM S67723. Paratype 3: Australia, Western Australia, S of Cape Leeuwin (34°41'S, 114°66'E). Dredged at 73-144 m. CSIRO HMAS "Gascoyne" Expedition, Station G3/160/62, August 8, 1962. AM C596058.
Distribution and Habitat
Australia, Western Australia, S of Cape Leeuwin to W of Rottnest Island. Dredged in sand and gravel at 120 m.
Etymology
The species is named after Rottnest Island, a location where a number of Austromitra species including this new species have been found in recent dredgings.
Discussion
This species is compared most closely to Austromitra diamantina n. sp. and Austromitra leeuwinensis n. sp. , the strong, round axial ribs and colour combination differentiate the species however.
Marrow, M. P. (2023). Ten new species of Austromitra (Gastropoda: Costellariidae) from Western Australia and South Australia.
Author: Jan Delsing