Halacarus falklandensis Newell 1984
Halacarus falklandensis Newell, 1984 Halacarus actenos robustus : Viets (1950: 4–6, fig. 1 A–E). Halacarus falklandensis : Newell (1984: 56–57). Diagnosis. Length of female 630–690 µm, of male 560 µm. Frontal spine moderately long, slender, equalling 0.3 times length of AD and less than 0.1 times le...
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Zenodo
2011
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Online Access: | https://dx.doi.org/10.5281/zenodo.5624302 https://zenodo.org/record/5624302 |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Halacaridae Halacarus Halacarus falklandensis |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Halacaridae Halacarus Halacarus falklandensis Bartsch, Ilse Halacarus falklandensis Newell 1984 |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Halacaridae Halacarus Halacarus falklandensis |
description |
Halacarus falklandensis Newell, 1984 Halacarus actenos robustus : Viets (1950: 4–6, fig. 1 A–E). Halacarus falklandensis : Newell (1984: 56–57). Diagnosis. Length of female 630–690 µm, of male 560 µm. Frontal spine moderately long, slender, equalling 0.3 times length of AD and less than 0.1 times length of idiosoma. Posterior part of AD linguiform. Pair of glp- 1 at 0.6. Pair of ds- 1 posterior to glp- 1, about halfway between glp- 1 and posterior margin of AD. Ocular plate ovate, with cornea and canaliculus in posterior margin. Pairs of ds- 5 and ds- 6 slightly anteromedial to level of glp- 4 and glp- 5, respectively; setae removed from gland pores by more than their diameter. Anterior margin of female GA broadly rounded; GA large, in small individuals extending almost to level of posterior edge of PE, in a large female far from that level. Interval between pgs- 1 and margin of GA equalling half the distance from anterior margin of GA to that of GO. The latter distance about twice length of GO. Anterior margin of male GA rounded; GO in middle of plate; distance from anterior margin of GA to GO almost same as distance from posterior margin of GO to end of anal sclerites. Male with 75 pgs around GO. Gnathosoma about 2.0 times longer than wide. Rostrum slightly longer than gnathosomal base and reaching to end of P- 2. Basal seta on P- 2 at 0.6. Integument of legs punctate. Telofemur, genu and tibia I with 2, 2, 4 spiniform and tapering ventral setae. Basalmost ventral spine at 0.3–0.4. Tibiae I to IV each with four bristle-like ventral setae. On tibia II both ventromedial setae long and bipectinate; ventromedial seta on genu II similar-sized and bipectinate. Trochanters I to IV with 1, 1, 3, 1 setae, basifemora I to IV with 2, 4, 2, 2 setae. Tarsi I to IV with 2, 1, 1, 1 ventral setae. Tarsi III and IV with four and three dorsal setae, respectively. Paired claws of all tarsi with very delicate accessory process, without pecten. Remarks. Halacarus falklandensis has similar-sized bipectinate setae on genu and tibia II and the female GA is long. Halacarus falklandensis shares characters with H. echinatus but has a shorter spine and shorter rostrum. Bartsch (1979 b) mentioned two females of Halacarus robustus which had been taken off the Marion Island, Prince Edward Islands. These individuals may belong to H. falklandensis . Distribution and ecology. Southern West Atlantic, Falkland Islands, amongst shallow water sand (22 m). : Published as part of Bartsch, Ilse, 2011, Halacarus socius (Acari: Halacaridae), description of the male and diagnoses of species of the Halacarus actenos group, pp. 18-40 in Zootaxa 2800 on page 28, DOI: 10.5281/zenodo.277043 : {"references": ["Newell, I. M. (1984) Antarctic Halacaroidea. Antarctic Research Series, 40, 1 - 284.", "Viets, K. (1950) Die Meeresmilben (Halacaridae, Acari) der Fauna Antarctica. Further Zoological Results of the Swedish Antarctic Expedition, 4 (3), 1 - 44.", "Bartsch, I. (1979 b) Halacaridae (Acari) aus der Subantarktis. Cahiers de Biologie marine, 20, 325 - 339."]} |
format |
Text |
author |
Bartsch, Ilse |
author_facet |
Bartsch, Ilse |
author_sort |
Bartsch, Ilse |
title |
Halacarus falklandensis Newell 1984 |
title_short |
Halacarus falklandensis Newell 1984 |
title_full |
Halacarus falklandensis Newell 1984 |
title_fullStr |
Halacarus falklandensis Newell 1984 |
title_full_unstemmed |
Halacarus falklandensis Newell 1984 |
title_sort |
halacarus falklandensis newell 1984 |
publisher |
Zenodo |
publishDate |
2011 |
url |
https://dx.doi.org/10.5281/zenodo.5624302 https://zenodo.org/record/5624302 |
long_lat |
ENVELOPE(9.895,9.895,63.645,63.645) ENVELOPE(-59.533,-59.533,-62.333,-62.333) |
geographic |
Antarctic Seta Newell |
geographic_facet |
Antarctic Seta Newell |
genre |
Antarc* Antarctic Antarctica Marion Island Prince Edward Islands |
genre_facet |
Antarc* Antarctic Antarctica Marion Island Prince Edward Islands |
op_relation |
http://publication.plazi.org/id/FF83FFF8FFB2CF0607501E39FFEBFFE2 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.277043 http://publication.plazi.org/id/FF83FFF8FFB2CF0607501E39FFEBFFE2 https://dx.doi.org/10.5281/zenodo.5624301 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.5624302 https://doi.org/10.5281/zenodo.277043 https://doi.org/10.5281/zenodo.5624301 |
_version_ |
1766076459720376320 |
spelling |
ftdatacite:10.5281/zenodo.5624302 2023-05-15T13:36:17+02:00 Halacarus falklandensis Newell 1984 Bartsch, Ilse 2011 https://dx.doi.org/10.5281/zenodo.5624302 https://zenodo.org/record/5624302 unknown Zenodo http://publication.plazi.org/id/FF83FFF8FFB2CF0607501E39FFEBFFE2 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.277043 http://publication.plazi.org/id/FF83FFF8FFB2CF0607501E39FFEBFFE2 https://dx.doi.org/10.5281/zenodo.5624301 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Halacaridae Halacarus Halacarus falklandensis Taxonomic treatment article-journal Text ScholarlyArticle 2011 ftdatacite https://doi.org/10.5281/zenodo.5624302 https://doi.org/10.5281/zenodo.277043 https://doi.org/10.5281/zenodo.5624301 2022-02-08T12:40:44Z Halacarus falklandensis Newell, 1984 Halacarus actenos robustus : Viets (1950: 4–6, fig. 1 A–E). Halacarus falklandensis : Newell (1984: 56–57). Diagnosis. Length of female 630–690 µm, of male 560 µm. Frontal spine moderately long, slender, equalling 0.3 times length of AD and less than 0.1 times length of idiosoma. Posterior part of AD linguiform. Pair of glp- 1 at 0.6. Pair of ds- 1 posterior to glp- 1, about halfway between glp- 1 and posterior margin of AD. Ocular plate ovate, with cornea and canaliculus in posterior margin. Pairs of ds- 5 and ds- 6 slightly anteromedial to level of glp- 4 and glp- 5, respectively; setae removed from gland pores by more than their diameter. Anterior margin of female GA broadly rounded; GA large, in small individuals extending almost to level of posterior edge of PE, in a large female far from that level. Interval between pgs- 1 and margin of GA equalling half the distance from anterior margin of GA to that of GO. The latter distance about twice length of GO. Anterior margin of male GA rounded; GO in middle of plate; distance from anterior margin of GA to GO almost same as distance from posterior margin of GO to end of anal sclerites. Male with 75 pgs around GO. Gnathosoma about 2.0 times longer than wide. Rostrum slightly longer than gnathosomal base and reaching to end of P- 2. Basal seta on P- 2 at 0.6. Integument of legs punctate. Telofemur, genu and tibia I with 2, 2, 4 spiniform and tapering ventral setae. Basalmost ventral spine at 0.3–0.4. Tibiae I to IV each with four bristle-like ventral setae. On tibia II both ventromedial setae long and bipectinate; ventromedial seta on genu II similar-sized and bipectinate. Trochanters I to IV with 1, 1, 3, 1 setae, basifemora I to IV with 2, 4, 2, 2 setae. Tarsi I to IV with 2, 1, 1, 1 ventral setae. Tarsi III and IV with four and three dorsal setae, respectively. Paired claws of all tarsi with very delicate accessory process, without pecten. Remarks. Halacarus falklandensis has similar-sized bipectinate setae on genu and tibia II and the female GA is long. Halacarus falklandensis shares characters with H. echinatus but has a shorter spine and shorter rostrum. Bartsch (1979 b) mentioned two females of Halacarus robustus which had been taken off the Marion Island, Prince Edward Islands. These individuals may belong to H. falklandensis . Distribution and ecology. Southern West Atlantic, Falkland Islands, amongst shallow water sand (22 m). : Published as part of Bartsch, Ilse, 2011, Halacarus socius (Acari: Halacaridae), description of the male and diagnoses of species of the Halacarus actenos group, pp. 18-40 in Zootaxa 2800 on page 28, DOI: 10.5281/zenodo.277043 : {"references": ["Newell, I. M. (1984) Antarctic Halacaroidea. Antarctic Research Series, 40, 1 - 284.", "Viets, K. (1950) Die Meeresmilben (Halacaridae, Acari) der Fauna Antarctica. Further Zoological Results of the Swedish Antarctic Expedition, 4 (3), 1 - 44.", "Bartsch, I. (1979 b) Halacaridae (Acari) aus der Subantarktis. Cahiers de Biologie marine, 20, 325 - 339."]} Text Antarc* Antarctic Antarctica Marion Island Prince Edward Islands DataCite Metadata Store (German National Library of Science and Technology) Antarctic Seta ENVELOPE(9.895,9.895,63.645,63.645) Newell ENVELOPE(-59.533,-59.533,-62.333,-62.333) |