Sinezona mechanica Geiger & Marshall, 2012, new species
Sinezona mechanica new species (Figures 4–6) Type material. Holotype (NMNZ M. 174828: Fig. 4). 1.28 × 0.88 mm. Paratypes from type locality (NMNZ M.045402, 2: Fig. 5 A–B). Additional paratypes: Saunders Canyon, off Otago Peninsula, South Island, New Zealand, 45.767 ˚S, 170.900 ˚E, 360 m (NMNZ M. 160...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2012
|
Subjects: | |
Online Access: | https://zenodo.org/record/6166674 https://doi.org/10.5281/zenodo.6166674 |
id |
ftzenodo:oai:zenodo.org:6166674 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:6166674 2023-05-15T17:09:59+02:00 Sinezona mechanica Geiger & Marshall, 2012, new species Geiger, Daniel L. Marshall, Bruce A. 2012-12-31 https://zenodo.org/record/6166674 https://doi.org/10.5281/zenodo.6166674 unknown info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/E79715FF-07E0-44F4-B953-21978B08AA5E info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/D077A52CA322FFE4FF18FB6B65BA1D61 info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:E79715FF-07E0-44F4-B953-21978B08AA5E doi:10.5281/zenodo.281437 http://publication.plazi.org/id/2C4EDD54A327FFE3FF8FFF9661441F76 doi:10.5281/zenodo.281441 doi:10.5281/zenodo.281442 doi:10.5281/zenodo.281443 doi:10.5281/zenodo.281445 http://zoobank.org/293824D9-E73D-4D75-8058-1786E951DB23 doi:10.5281/zenodo.6166673 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6166674 https://doi.org/10.5281/zenodo.6166674 oai:zenodo.org:6166674 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond, pp. 1-33 in Zootaxa 3344 6-8 Biodiversity Taxonomy Animalia Mollusca Gastropoda Lepetellida Scissurellidae Sinezona Sinezona mechanica info:eu-repo/semantics/other publication-taxonomictreatment 2012 ftzenodo https://doi.org/10.5281/zenodo.616667410.5281/zenodo.28143710.5281/zenodo.28144110.5281/zenodo.28144210.5281/zenodo.28144310.5281/zenodo.28144510.5281/zenodo.6166673 2023-03-10T15:30:34Z Sinezona mechanica new species (Figures 4–6) Type material. Holotype (NMNZ M. 174828: Fig. 4). 1.28 × 0.88 mm. Paratypes from type locality (NMNZ M.045402, 2: Fig. 5 A–B). Additional paratypes: Saunders Canyon, off Otago Peninsula, South Island, New Zealand, 45.767 ˚S, 170.900 ˚E, 360 m (NMNZ M. 160300, 2: Fig. 5 C); Aerial Cove, Macquarie Island, 54.483 ˚S, 158.950 ˚E (AMS C.404496, 20). Type locality. Ocean Bay, Chatham Island, New Zealand, 43.833 ˚S, 176.783 ˚W, 12–15 m, 7 Dec. 2000, F.J. Brook, bryozoans, shell and sand from rock crevice. Etymology. Latin adjective referring to the sculpture of shell and protoconch suggestive of mechanical gears. Description. Shell small (to 0.89 mm. Figs 4–5), depressed trochiform globular. Protoconch of 1 whorl, many dense axial cords on centrifugal portion of whorls, thickened at top forming (near) continuous connecting spiral cord. Apertural varix terminal (Fig. 8 B), not connected to embryonic cap, apertural margin straight. Teleoconch I of 0.9–1 whorl, approximately 17–20 strong (occasionally barely perceptible) axial cords, no spirals. Teleoconch II of 0.6 whorl, suture little impressed. Shoulder slightly concave, same density and strength of axial cords as on teleoconch I, finest growth marks in interstices, no spirals. Base with weak constriction below selenizone, rounded, same density and strength of axial cords as on shoulder; approximately 4 weak, granular spiral cordlets in adumbilical 1 / 5 of base. Umbilicus of moderate width, at sharp angle to base, bordered by weak to moderate strength spiral cord, wall straight, smooth. Aperture rounded, roof overhanging. Selenizone above periphery; keels low, moderate strength; lunules distinct; slit open, margins somewhat converging. Radula (Fig. 6). Rachidian trapezoid, central cusp largest, three cusps on each side. Lateral teeth 1–3 similar, apical cusps largest, 4–6 on outer cutting edge. Lateral tooth 4 reduced, hook shaped, with 1 minute point on each side of tip. Lateral tooth 5 enlarged by broadening, apical cusp ... Other/Unknown Material Macquarie Island Zenodo New Zealand Saunders ENVELOPE(-45.316,-45.316,-60.700,-60.700) Geiger ENVELOPE(-62.900,-62.900,-64.300,-64.300) Saunders Canyon ENVELOPE(170.907,170.907,-45.929,-45.929) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Lepetellida Scissurellidae Sinezona Sinezona mechanica |
spellingShingle |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Lepetellida Scissurellidae Sinezona Sinezona mechanica Geiger, Daniel L. Marshall, Bruce A. Sinezona mechanica Geiger & Marshall, 2012, new species |
topic_facet |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Lepetellida Scissurellidae Sinezona Sinezona mechanica |
description |
Sinezona mechanica new species (Figures 4–6) Type material. Holotype (NMNZ M. 174828: Fig. 4). 1.28 × 0.88 mm. Paratypes from type locality (NMNZ M.045402, 2: Fig. 5 A–B). Additional paratypes: Saunders Canyon, off Otago Peninsula, South Island, New Zealand, 45.767 ˚S, 170.900 ˚E, 360 m (NMNZ M. 160300, 2: Fig. 5 C); Aerial Cove, Macquarie Island, 54.483 ˚S, 158.950 ˚E (AMS C.404496, 20). Type locality. Ocean Bay, Chatham Island, New Zealand, 43.833 ˚S, 176.783 ˚W, 12–15 m, 7 Dec. 2000, F.J. Brook, bryozoans, shell and sand from rock crevice. Etymology. Latin adjective referring to the sculpture of shell and protoconch suggestive of mechanical gears. Description. Shell small (to 0.89 mm. Figs 4–5), depressed trochiform globular. Protoconch of 1 whorl, many dense axial cords on centrifugal portion of whorls, thickened at top forming (near) continuous connecting spiral cord. Apertural varix terminal (Fig. 8 B), not connected to embryonic cap, apertural margin straight. Teleoconch I of 0.9–1 whorl, approximately 17–20 strong (occasionally barely perceptible) axial cords, no spirals. Teleoconch II of 0.6 whorl, suture little impressed. Shoulder slightly concave, same density and strength of axial cords as on teleoconch I, finest growth marks in interstices, no spirals. Base with weak constriction below selenizone, rounded, same density and strength of axial cords as on shoulder; approximately 4 weak, granular spiral cordlets in adumbilical 1 / 5 of base. Umbilicus of moderate width, at sharp angle to base, bordered by weak to moderate strength spiral cord, wall straight, smooth. Aperture rounded, roof overhanging. Selenizone above periphery; keels low, moderate strength; lunules distinct; slit open, margins somewhat converging. Radula (Fig. 6). Rachidian trapezoid, central cusp largest, three cusps on each side. Lateral teeth 1–3 similar, apical cusps largest, 4–6 on outer cutting edge. Lateral tooth 4 reduced, hook shaped, with 1 minute point on each side of tip. Lateral tooth 5 enlarged by broadening, apical cusp ... |
format |
Other/Unknown Material |
author |
Geiger, Daniel L. Marshall, Bruce A. |
author_facet |
Geiger, Daniel L. Marshall, Bruce A. |
author_sort |
Geiger, Daniel L. |
title |
Sinezona mechanica Geiger & Marshall, 2012, new species |
title_short |
Sinezona mechanica Geiger & Marshall, 2012, new species |
title_full |
Sinezona mechanica Geiger & Marshall, 2012, new species |
title_fullStr |
Sinezona mechanica Geiger & Marshall, 2012, new species |
title_full_unstemmed |
Sinezona mechanica Geiger & Marshall, 2012, new species |
title_sort |
sinezona mechanica geiger & marshall, 2012, new species |
publishDate |
2012 |
url |
https://zenodo.org/record/6166674 https://doi.org/10.5281/zenodo.6166674 |
long_lat |
ENVELOPE(-45.316,-45.316,-60.700,-60.700) ENVELOPE(-62.900,-62.900,-64.300,-64.300) ENVELOPE(170.907,170.907,-45.929,-45.929) |
geographic |
New Zealand Saunders Geiger Saunders Canyon |
geographic_facet |
New Zealand Saunders Geiger Saunders Canyon |
genre |
Macquarie Island |
genre_facet |
Macquarie Island |
op_source |
New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond, pp. 1-33 in Zootaxa 3344 6-8 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/E79715FF-07E0-44F4-B953-21978B08AA5E info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/D077A52CA322FFE4FF18FB6B65BA1D61 info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:E79715FF-07E0-44F4-B953-21978B08AA5E doi:10.5281/zenodo.281437 http://publication.plazi.org/id/2C4EDD54A327FFE3FF8FFF9661441F76 doi:10.5281/zenodo.281441 doi:10.5281/zenodo.281442 doi:10.5281/zenodo.281443 doi:10.5281/zenodo.281445 http://zoobank.org/293824D9-E73D-4D75-8058-1786E951DB23 doi:10.5281/zenodo.6166673 https://zenodo.org/communities/biosyslit https://zenodo.org/record/6166674 https://doi.org/10.5281/zenodo.6166674 oai:zenodo.org:6166674 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.616667410.5281/zenodo.28143710.5281/zenodo.28144110.5281/zenodo.28144210.5281/zenodo.28144310.5281/zenodo.28144510.5281/zenodo.6166673 |
_version_ |
1766066366574493696 |