Milnesium longiungue Tumanov, 2006, sp. nov.
Milnesium longiungue sp. nov. (Figs. 12 –14, 37– 42, Table 6) Type Material. Holotype: sex indeterminate, slide number 214 (1). Collected by Dr. P. I. Krylov (Zoological Institute of the Russian Academy of Sciences, St. Petersburg) 30.09. 1995, India. Paratypes: slide’s numbers 214 (2, 3, 4, 5, 6) f...
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Online Access: | https://dx.doi.org/10.5281/zenodo.6255505 https://zenodo.org/record/6255505 |
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Biodiversity Taxonomy Animalia Annelida Polychaeta Phyllodocida Aphroditidae Milnesium Milnesium longiungue |
spellingShingle |
Biodiversity Taxonomy Animalia Annelida Polychaeta Phyllodocida Aphroditidae Milnesium Milnesium longiungue Tumanov, Denis V. Milnesium longiungue Tumanov, 2006, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Annelida Polychaeta Phyllodocida Aphroditidae Milnesium Milnesium longiungue |
description |
Milnesium longiungue sp. nov. (Figs. 12 –14, 37– 42, Table 6) Type Material. Holotype: sex indeterminate, slide number 214 (1). Collected by Dr. P. I. Krylov (Zoological Institute of the Russian Academy of Sciences, St. Petersburg) 30.09. 1995, India. Paratypes: slide’s numbers 214 (2, 3, 4, 5, 6) from the same locality. Type locality: India, Hymalaia, Lahaul, road between Keylong and Kardang, 3600–3700 m a.s.l, moss and lichen on rock. 11 adult and juvenile specimens were found. Etymology. This species is named after its typical character—long claws. Description. Body length up to 944.3 µm; colour of living specimens white, cuticle smooth, eyes present in most specimens (among 8 adult specimens 3 lack eyes). Six peribuccal and two lateral papillae present. Mouth with 6 peribuccal lamellae longitudinally striped in their basal portion. Claws very long, slender. Main branch of each claw lacks accessory points. Basal spur of each claw (especially on the IV pair of legs) strongly reduced. Length of the complex basal claw+secondary branch 3–3.5 times exceed length of the basal spur. Complex basal claw+secondary branch with a rounded basal thickening. First three pairs of legs with elongated cuticular thickening near the claw bases. All dimensions are given in Table 6. Remarks. One adult specimen has strongly modificated claws on legs I. Each leg bears a pair of short claws in the form of a simple hook with basal protrusion (Fig. 14), which seems to derivate from the complex basal claw+secondary branch, while the main branches are completely reduced. This configuration of the claws is similar to those found in Milnesium tardigradum (personal observations) and Milnesium tetralamellatum (Pilato & Binda 1991) males, but in later two species main branches of claws are present. Although it is not proved by the direct observations of the gonad, it is highly possible that this specimen is also the male. Milnesium longiungue sp. nov. differs from M. reticulatum by having smooth cuticle without gibbosities, more cephalic position of the insertion point of the stylet supports ( pt value 59.1–66.7 in M. longiungue sp. nov. and 68.5–69.8 in M. reticulatum ) and longer claws with developed basal spurs on the outer claws and without accessory points ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 41.7–44.3 in M. reticulatum ). Milnesium longiungue sp. nov. differs from M. katarzynae by having smooth cuticle, more cephalic position of the insertion point of the stylet supports ( pt value 59.1–66.7 in M. longiungue sp. nov. and 73.3–78.3 in M. katarzynae ) and longer claws with developed basal spurs on all claws and without accessory points ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 43.5–43.8 in M. katarzynae ). Milnesium longiungue sp. nov. differs from M. dujiangensis by having main claw branches on all legs. Milnesium longiungue sp. nov. differs from M. tardigradum by having longer and more slender claws, larger pt ratio of the claws, reduced accessory points and shorter basal spur (for comparison see Tables 1 and 6). Milnesium longiungue sp. nov. differs from M. antarcticum sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, smaller buccal tube dimensions, more cephalic position of the insertion point of the stylet supports, more slender claws with reduced accessory points and shorter basal spur (for comparison see Tables 2 and 6). Milnesium longiungue sp. nov. differs from M. asiaticum sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, reduced accessory points and shorter basal spur (for comparison see Tables 4 and 6). Milnesium longiungue sp. nov. differs from M. almaaatensis sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, more cephalic position of the insertion point of the stylet supports, reduced accessory points and developed basal spurs on all claws (for comparison see Tables 3 and 6). Milnesium longiungue sp. nov. differs from M. reductum sp. nov. by having larger buccal tube dimensions, longer claws (especially on legs IV), larger pt ratio of the length of the claws of the IV pair of legs and developed basal spurs on the outer claws (for comparison see Tables 5 and 6). Milnesium longiungue sp. nov. differs from M. tetralamellatum by having 6 peribuccal lamellae, longer main branches of all claws ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 54.7 in M. tetralamellatum ), developed basal spurs on the outer claws and reduced accessory points on all claws. Milnesium longiungue sp. nov. differs from M. brachyungue by having larger pt ratio of the claws of legs IV ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 33.1 in M. brachyungue ) and longer claws. Milnesium longiungue sp. nov. differs from M. eurystomum by having typical configuration of buccal apparatus. : Published as part of Tumanov, Denis V., 2006, Five new species of the genus Milnesium (Tardigrada, Eutardigrada, Milnesiidae), pp. 1-23 in Zootaxa 1122 on pages 18-21, DOI: 10.5281/zenodo.171737 : {"references": ["Pilato, G. & Binda, M. G. (1991) Milnesium tetralamellatum new species of Milnesiidae from Africa (Eutardigrada). Tropical Zoology, 4, 103 - 106."]} |
format |
Text |
author |
Tumanov, Denis V. |
author_facet |
Tumanov, Denis V. |
author_sort |
Tumanov, Denis V. |
title |
Milnesium longiungue Tumanov, 2006, sp. nov. |
title_short |
Milnesium longiungue Tumanov, 2006, sp. nov. |
title_full |
Milnesium longiungue Tumanov, 2006, sp. nov. |
title_fullStr |
Milnesium longiungue Tumanov, 2006, sp. nov. |
title_full_unstemmed |
Milnesium longiungue Tumanov, 2006, sp. nov. |
title_sort |
milnesium longiungue tumanov, 2006, sp. nov. |
publisher |
Zenodo |
publishDate |
2006 |
url |
https://dx.doi.org/10.5281/zenodo.6255505 https://zenodo.org/record/6255505 |
genre |
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genre_facet |
Antarc* |
op_relation |
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Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
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ftdatacite:10.5281/zenodo.6255505 2023-05-15T14:06:38+02:00 Milnesium longiungue Tumanov, 2006, sp. nov. Tumanov, Denis V. 2006 https://dx.doi.org/10.5281/zenodo.6255505 https://zenodo.org/record/6255505 unknown Zenodo http://publication.plazi.org/id/4F1BFF962812C821FFB5FFE38C56D06E http://table.plazi.org/id/6FF466702800C833FEBDFCF388C2D347 http://table.plazi.org/id/6FF466702810C823FEBDFD308D1DD37D http://table.plazi.org/id/6FF466702811C822FEBDFEFE88FCD15A http://table.plazi.org/id/6FF466702819C82AFEBDFCDE88C4D33B http://table.plazi.org/id/6FF466702818C82BFEBDFEFE88C2D158 http://table.plazi.org/id/6FF46670281DC82EFEBDFD1F886ED37A http://zoobank.org/920D938D-F578-47BE-B7E7-50DD7864703D https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.171737 http://publication.plazi.org/id/4F1BFF962812C821FFB5FFE38C56D06E https://dx.doi.org/10.5281/zenodo.171740 https://dx.doi.org/10.5281/zenodo.171745 http://table.plazi.org/id/6FF466702800C833FEBDFCF388C2D347 http://table.plazi.org/id/6FF466702810C823FEBDFD308D1DD37D http://table.plazi.org/id/6FF466702811C822FEBDFEFE88FCD15A http://table.plazi.org/id/6FF466702819C82AFEBDFCDE88C4D33B http://table.plazi.org/id/6FF466702818C82BFEBDFEFE88C2D158 http://table.plazi.org/id/6FF46670281DC82EFEBDFD1F886ED37A http://zoobank.org/920D938D-F578-47BE-B7E7-50DD7864703D https://dx.doi.org/10.5281/zenodo.6255504 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 Annelida Polychaeta Phyllodocida Aphroditidae Milnesium Milnesium longiungue article-journal ScholarlyArticle Taxonomic treatment Text 2006 ftdatacite https://doi.org/10.5281/zenodo.6255505 https://doi.org/10.5281/zenodo.171737 https://doi.org/10.5281/zenodo.171740 https://doi.org/10.5281/zenodo.171745 https://doi.org/10.5281/zenodo.6255504 2022-04-01T12:23:58Z Milnesium longiungue sp. nov. (Figs. 12 –14, 37– 42, Table 6) Type Material. Holotype: sex indeterminate, slide number 214 (1). Collected by Dr. P. I. Krylov (Zoological Institute of the Russian Academy of Sciences, St. Petersburg) 30.09. 1995, India. Paratypes: slide’s numbers 214 (2, 3, 4, 5, 6) from the same locality. Type locality: India, Hymalaia, Lahaul, road between Keylong and Kardang, 3600–3700 m a.s.l, moss and lichen on rock. 11 adult and juvenile specimens were found. Etymology. This species is named after its typical character—long claws. Description. Body length up to 944.3 µm; colour of living specimens white, cuticle smooth, eyes present in most specimens (among 8 adult specimens 3 lack eyes). Six peribuccal and two lateral papillae present. Mouth with 6 peribuccal lamellae longitudinally striped in their basal portion. Claws very long, slender. Main branch of each claw lacks accessory points. Basal spur of each claw (especially on the IV pair of legs) strongly reduced. Length of the complex basal claw+secondary branch 3–3.5 times exceed length of the basal spur. Complex basal claw+secondary branch with a rounded basal thickening. First three pairs of legs with elongated cuticular thickening near the claw bases. All dimensions are given in Table 6. Remarks. One adult specimen has strongly modificated claws on legs I. Each leg bears a pair of short claws in the form of a simple hook with basal protrusion (Fig. 14), which seems to derivate from the complex basal claw+secondary branch, while the main branches are completely reduced. This configuration of the claws is similar to those found in Milnesium tardigradum (personal observations) and Milnesium tetralamellatum (Pilato & Binda 1991) males, but in later two species main branches of claws are present. Although it is not proved by the direct observations of the gonad, it is highly possible that this specimen is also the male. Milnesium longiungue sp. nov. differs from M. reticulatum by having smooth cuticle without gibbosities, more cephalic position of the insertion point of the stylet supports ( pt value 59.1–66.7 in M. longiungue sp. nov. and 68.5–69.8 in M. reticulatum ) and longer claws with developed basal spurs on the outer claws and without accessory points ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 41.7–44.3 in M. reticulatum ). Milnesium longiungue sp. nov. differs from M. katarzynae by having smooth cuticle, more cephalic position of the insertion point of the stylet supports ( pt value 59.1–66.7 in M. longiungue sp. nov. and 73.3–78.3 in M. katarzynae ) and longer claws with developed basal spurs on all claws and without accessory points ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 43.5–43.8 in M. katarzynae ). Milnesium longiungue sp. nov. differs from M. dujiangensis by having main claw branches on all legs. Milnesium longiungue sp. nov. differs from M. tardigradum by having longer and more slender claws, larger pt ratio of the claws, reduced accessory points and shorter basal spur (for comparison see Tables 1 and 6). Milnesium longiungue sp. nov. differs from M. antarcticum sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, smaller buccal tube dimensions, more cephalic position of the insertion point of the stylet supports, more slender claws with reduced accessory points and shorter basal spur (for comparison see Tables 2 and 6). Milnesium longiungue sp. nov. differs from M. asiaticum sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, reduced accessory points and shorter basal spur (for comparison see Tables 4 and 6). Milnesium longiungue sp. nov. differs from M. almaaatensis sp. nov. by having larger pt ratio of the length of the claws of the IV pair of legs, more cephalic position of the insertion point of the stylet supports, reduced accessory points and developed basal spurs on all claws (for comparison see Tables 3 and 6). Milnesium longiungue sp. nov. differs from M. reductum sp. nov. by having larger buccal tube dimensions, longer claws (especially on legs IV), larger pt ratio of the length of the claws of the IV pair of legs and developed basal spurs on the outer claws (for comparison see Tables 5 and 6). Milnesium longiungue sp. nov. differs from M. tetralamellatum by having 6 peribuccal lamellae, longer main branches of all claws ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 54.7 in M. tetralamellatum ), developed basal spurs on the outer claws and reduced accessory points on all claws. Milnesium longiungue sp. nov. differs from M. brachyungue by having larger pt ratio of the claws of legs IV ( pt value of the length of main branches of the claws of the IV pair of legs is 81.8–92.4 in M. longiungue sp. nov. and 33.1 in M. brachyungue ) and longer claws. Milnesium longiungue sp. nov. differs from M. eurystomum by having typical configuration of buccal apparatus. : Published as part of Tumanov, Denis V., 2006, Five new species of the genus Milnesium (Tardigrada, Eutardigrada, Milnesiidae), pp. 1-23 in Zootaxa 1122 on pages 18-21, DOI: 10.5281/zenodo.171737 : {"references": ["Pilato, G. & Binda, M. G. (1991) Milnesium tetralamellatum new species of Milnesiidae from Africa (Eutardigrada). Tropical Zoology, 4, 103 - 106."]} Text Antarc* DataCite Metadata Store (German National Library of Science and Technology) |