Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.

Anekes spiralis Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: CBA7FA0B-5656-47A2-ADE8-DEFE58E98B81 Fig. 17A‒H Etymology The specific name refers to the characteristic spiral sculpture. Type material Holotype GALICIA BANK • 1 sh (Fig. 17 A ‒ G, 1.7 mm in diameter); 42°56.77′ N, 11°58.53′ W; 16...

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Main Authors: Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José, Serrano, Alberto
Format: Text
Language:unknown
Published: Zenodo 2021
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Online Access:https://dx.doi.org/10.5281/zenodo.5837788
https://zenodo.org/record/5837788
id ftdatacite:10.5281/zenodo.5837788
record_format openpolar
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Seguenziida
Anekes
Anekes spiralis
spellingShingle Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Seguenziida
Anekes
Anekes spiralis
Gofas, Serge
Luque, Ángel A.
Oliver, Joan Daniel
Templado, José
Serrano, Alberto
Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
topic_facet Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Seguenziida
Anekes
Anekes spiralis
description Anekes spiralis Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: CBA7FA0B-5656-47A2-ADE8-DEFE58E98B81 Fig. 17A‒H Etymology The specific name refers to the characteristic spiral sculpture. Type material Holotype GALICIA BANK • 1 sh (Fig. 17 A ‒ G, 1.7 mm in diameter); 42°56.77′ N, 11°58.53′ W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN 15.05 /200139H. Paratypes GALICIA BANK • 1 spm and 7 sh; same collection data as for holotype; MNCN 15.05 /200139P. Other material examined GALICIA BANK • 1 sh; 43°00.12′ N, 11°57.67′ W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN. Description Shell minute, very fragile and translucent, up to 2.1 mm height and maximum diameter, trochiform, with a moderately low, slightly cyrtoconoid spire, a rounded periphery and body whorl, and a small but definite umbilicus. Protoconch of ¾ whorl, about 260 µm in maximum diameter, terminated by a simple, curved edge; protoconch sculpture of minute, irregularly spaced granules. Teleoconch with up to 3 convex whorls. First whorls sculptured by minute spiral threads, irregular in size and spacing, about half the size of interspaces; occasionally these threads are interrupted or anastomosing. The spiral threads become inconspicuous on the later whorls, persisting in the subsutural zone and within the umbilical area, but lacking in the median part of the body whorl, where only growth lines can be seen. Umbilicus narrow and deep, not delimited from the rest the whorl. Aperture evenly rounded except for a slight angle at the termination of the suture; outer lip very thin, slightly flexuous, slightly prosocline. Colour slightly yellowish on fresh shells, otherwise whitish. Remarks Species of Anekes are mostly characterized by a peculiar “ Anekes sculpture” which consists of minute raised lines, anastomosing in a criss-cross pattern. In Anekes affinis (Jeffreys, 1883) this sculpture is spread over the entire surface and quite noticeable. Anekes sculpturata Warén, 1992 is similar but smaller (hardly exceeds 1 mm) and the microsculpture has a preferential orientation in the spiral direction, while in A. affinis it forms a non-directional network. In Anekes paucistriata Warén, 1992 the sculpture is evident only on the first whorl and may also occur in the umbilicus, but it is almost completely missing in intermediate surface and an attentive examination is required, under strong magnification and preferably under SEM, to detect it. This kind of sculpture is not exclusive of the genus Anekes , and it is also present on Granigyra inflata (Warén, 1992), originally described in Anekes but later (Warén 1996) found to have radular characters closer to Granigyra Dall, 1889. Anekes spiralis sp. nov. differs from the other species of Anekes in that the microsculpture is definitely spiral, not just with a preferential orientation like in A. sculpturata or in A. undulisculpta , but a limited anastomosing pattern occurs on some (especially the very early) parts of the shell of A. spiralis sp. nov., supporting the generic placement. : Published as part of Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 48-51, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418 : {"references": ["Waren A. 1992. New and little known \" Skeneimorph \" gastropods from the Mediterranean Sea and the adjacent Atlantic Ocean. Bollettino Malacologico 27 (10 - 12): 149 - 248.", "Waren A. 1996. New and little known Mollusca from Iceland and Scandinavia. Part 3. Sarsia 81 (3): 197 - 245. https: // doi. org / 10.1080 / 00364827.1996.10413622"]}
format Text
author Gofas, Serge
Luque, Ángel A.
Oliver, Joan Daniel
Templado, José
Serrano, Alberto
author_facet Gofas, Serge
Luque, Ángel A.
Oliver, Joan Daniel
Templado, José
Serrano, Alberto
author_sort Gofas, Serge
title Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
title_short Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
title_full Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
title_fullStr Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
title_full_unstemmed Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov.
title_sort anekes spiralis gofas & luque & oliver & templado & serrano 2021, sp. nov.
publisher Zenodo
publishDate 2021
url https://dx.doi.org/10.5281/zenodo.5837788
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genre_facet Iceland
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spelling ftdatacite:10.5281/zenodo.5837788 2023-05-15T16:53:18+02:00 Anekes spiralis Gofas & Luque & Oliver & Templado & Serrano 2021, sp. nov. Gofas, Serge Luque, Ángel A. Oliver, Joan Daniel Templado, José Serrano, Alberto 2021 https://dx.doi.org/10.5281/zenodo.5837788 https://zenodo.org/record/5837788 unknown Zenodo http://zenodo.org/record/5798418 http://publication.plazi.org/id/2A058844C376FFE28E30FFBD0E12FF81 http://zoobank.org/8B61E9CD-DDCA-43FC-AB0A-B227C1A579E8 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2021.785.1605 http://zenodo.org/record/5798418 http://publication.plazi.org/id/2A058844C376FFE28E30FFBD0E12FF81 https://dx.doi.org/10.5281/zenodo.5798458 https://dx.doi.org/10.5281/zenodo.5798420 http://zoobank.org/8B61E9CD-DDCA-43FC-AB0A-B227C1A579E8 https://dx.doi.org/10.5281/zenodo.5837787 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Mollusca Gastropoda Seguenziida Anekes Anekes spiralis Taxonomic treatment article-journal Text ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.5837788 https://doi.org/10.5852/ejt.2021.785.1605 https://doi.org/10.5281/zenodo.5798458 https://doi.org/10.5281/zenodo.5798420 https://doi.org/10.5281/zenodo.5837787 2022-02-09T11:53:39Z Anekes spiralis Gofas & Luque sp. nov. urn:lsid:zoobank.org:act: CBA7FA0B-5656-47A2-ADE8-DEFE58E98B81 Fig. 17A‒H Etymology The specific name refers to the characteristic spiral sculpture. Type material Holotype GALICIA BANK • 1 sh (Fig. 17 A ‒ G, 1.7 mm in diameter); 42°56.77′ N, 11°58.53′ W; 1631 m; 2 Aug. 2011; BANGAL 0711 V5; MNCN 15.05 /200139H. Paratypes GALICIA BANK • 1 spm and 7 sh; same collection data as for holotype; MNCN 15.05 /200139P. Other material examined GALICIA BANK • 1 sh; 43°00.12′ N, 11°57.67′ W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN. Description Shell minute, very fragile and translucent, up to 2.1 mm height and maximum diameter, trochiform, with a moderately low, slightly cyrtoconoid spire, a rounded periphery and body whorl, and a small but definite umbilicus. Protoconch of ¾ whorl, about 260 µm in maximum diameter, terminated by a simple, curved edge; protoconch sculpture of minute, irregularly spaced granules. Teleoconch with up to 3 convex whorls. First whorls sculptured by minute spiral threads, irregular in size and spacing, about half the size of interspaces; occasionally these threads are interrupted or anastomosing. The spiral threads become inconspicuous on the later whorls, persisting in the subsutural zone and within the umbilical area, but lacking in the median part of the body whorl, where only growth lines can be seen. Umbilicus narrow and deep, not delimited from the rest the whorl. Aperture evenly rounded except for a slight angle at the termination of the suture; outer lip very thin, slightly flexuous, slightly prosocline. Colour slightly yellowish on fresh shells, otherwise whitish. Remarks Species of Anekes are mostly characterized by a peculiar “ Anekes sculpture” which consists of minute raised lines, anastomosing in a criss-cross pattern. In Anekes affinis (Jeffreys, 1883) this sculpture is spread over the entire surface and quite noticeable. Anekes sculpturata Warén, 1992 is similar but smaller (hardly exceeds 1 mm) and the microsculpture has a preferential orientation in the spiral direction, while in A. affinis it forms a non-directional network. In Anekes paucistriata Warén, 1992 the sculpture is evident only on the first whorl and may also occur in the umbilicus, but it is almost completely missing in intermediate surface and an attentive examination is required, under strong magnification and preferably under SEM, to detect it. This kind of sculpture is not exclusive of the genus Anekes , and it is also present on Granigyra inflata (Warén, 1992), originally described in Anekes but later (Warén 1996) found to have radular characters closer to Granigyra Dall, 1889. Anekes spiralis sp. nov. differs from the other species of Anekes in that the microsculpture is definitely spiral, not just with a preferential orientation like in A. sculpturata or in A. undulisculpta , but a limited anastomosing pattern occurs on some (especially the very early) parts of the shell of A. spiralis sp. nov., supporting the generic placement. : Published as part of Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 48-51, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418 : {"references": ["Waren A. 1992. New and little known \" Skeneimorph \" gastropods from the Mediterranean Sea and the adjacent Atlantic Ocean. Bollettino Malacologico 27 (10 - 12): 149 - 248.", "Waren A. 1996. New and little known Mollusca from Iceland and Scandinavia. Part 3. Sarsia 81 (3): 197 - 245. https: // doi. org / 10.1080 / 00364827.1996.10413622"]} Text Iceland DataCite Metadata Store (German National Library of Science and Technology)