Halicnemia
Halicnemia sp. Figures 34 a–c Material examined. RMNH Por. ex 9973 (slide only), Suriname, ‘ Snellius O.C.P.S. ’ Guyana Shelf Expedition, station B23A, 7.297°N 55.3883°W, depth 99–101 m, Van Veen grab, 27 April 1966. Description. Encrusting, hispid. The tiny specimen was so small that no material wa...
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ftdatacite:10.5281/zenodo.5698602 2023-05-15T17:45:48+02:00 Halicnemia Van, Rob W. M. 2017 https://dx.doi.org/10.5281/zenodo.5698602 https://zenodo.org/record/5698602 unknown Zenodo http://publication.plazi.org/id/FF9178687757FFACFF83A36B907DFF9A http://zoobank.org/6D68A019-6F63-4AA4-A8B3-92D351F1F69B https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.272951 http://publication.plazi.org/id/FF9178687757FFACFF83A36B907DFF9A https://dx.doi.org/10.5281/zenodo.272985 http://zoobank.org/6D68A019-6F63-4AA4-A8B3-92D351F1F69B https://dx.doi.org/10.5281/zenodo.5698601 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Heteroxyidae Halicnemia Taxonomic treatment article-journal Text ScholarlyArticle 2017 ftdatacite https://doi.org/10.5281/zenodo.5698602 https://doi.org/10.5281/zenodo.272951 https://doi.org/10.5281/zenodo.272985 https://doi.org/10.5281/zenodo.5698601 2022-02-08T13:42:09Z Halicnemia sp. Figures 34 a–c Material examined. RMNH Por. ex 9973 (slide only), Suriname, ‘ Snellius O.C.P.S. ’ Guyana Shelf Expedition, station B23A, 7.297°N 55.3883°W, depth 99–101 m, Van Veen grab, 27 April 1966. Description. Encrusting, hispid. The tiny specimen was so small that no material was left after light microscopic and SEM slides had been made. No further material of this species was found after a careful search. Skeleton. No details can be provided, but presumably the megascleres were arranged perpendicularly on the substratum, with acanthoxeas scattered in the near-substratum part of the sponge. Spicules. (Figs 34 a–c) Tylostyles, tornotes, acanthoxeas. Tylostyles (Figs 34 a,a1) long straight, except near the tyles where a slight gradual bend may be present, with prominent globular heads, 1344– 1843 – 2286 x 15 – 19.3 –28 µm. Tornotes (Figs 34 b,b1) with a peculiar twisted bend in the middle, occasionally with an additional central tyle, 663– 1009 –1236 x 8.5– 12.5 –15 µm. Acanthoxeas (Figs 34 c), curved gradually or more often with angular bend in the middle, provided with strong conical spines, 78– 91 – 97 x 5.5– 7.4 –10 µm. Distribution and ecology. Guyana Shelf, sandy bottom, at around 100 m depth. Remarks. This is the first record of the genus Halicnemia in the Western Atlantic. The genus has a chequered distribution in the Northwest Atlantic, Western Indian Ocean and South East Pacific (Van Soest et al. 2016). The present species stands out among the known species of Halicnemia by the twisted bends in the tornotes. It is doubtless an undescribed species, but I refrain from naming it in the absence of a proper specimen. : Published as part of Van, Rob W. M., 2017, Sponges of the Guyana Shelf, pp. 1-225 in Zootaxa 1 on page 53, DOI: 10.5281/zenodo.272951 : {"references": ["Van Soest, R. W. M., Boury-Esnault, N., Hooper, J. N. A., Rutzler, K., de Voogd, N. J., Alvarez de Glasby, B., Hajdu, E., Pisera, A. B., Manconi, R., Schoenberg, C., Janussen, D., Tabachnick, K. R., Klautau, M., Picton, B., Kelly, M., Vacelet, J., Dohrmann, M., Diaz, M. C., Cardenas, P. & Carballo, J. L. (2016) World Porifera database. Avaliable from: http: // www. marinespecies. org / porifera on 2016 - 05 - 21 (Accessed 11 Jan. 2017)"]} Text Northwest Atlantic DataCite Metadata Store (German National Library of Science and Technology) Pacific Indian Alvarez ENVELOPE(-64.483,-64.483,-65.633,-65.633) Van Veen ENVELOPE(161.900,161.900,-71.583,-71.583) Diaz ENVELOPE(-60.667,-60.667,-63.783,-63.783) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Heteroxyidae Halicnemia |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Heteroxyidae Halicnemia Van, Rob W. M. Halicnemia |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Halichondrida Heteroxyidae Halicnemia |
description |
Halicnemia sp. Figures 34 a–c Material examined. RMNH Por. ex 9973 (slide only), Suriname, ‘ Snellius O.C.P.S. ’ Guyana Shelf Expedition, station B23A, 7.297°N 55.3883°W, depth 99–101 m, Van Veen grab, 27 April 1966. Description. Encrusting, hispid. The tiny specimen was so small that no material was left after light microscopic and SEM slides had been made. No further material of this species was found after a careful search. Skeleton. No details can be provided, but presumably the megascleres were arranged perpendicularly on the substratum, with acanthoxeas scattered in the near-substratum part of the sponge. Spicules. (Figs 34 a–c) Tylostyles, tornotes, acanthoxeas. Tylostyles (Figs 34 a,a1) long straight, except near the tyles where a slight gradual bend may be present, with prominent globular heads, 1344– 1843 – 2286 x 15 – 19.3 –28 µm. Tornotes (Figs 34 b,b1) with a peculiar twisted bend in the middle, occasionally with an additional central tyle, 663– 1009 –1236 x 8.5– 12.5 –15 µm. Acanthoxeas (Figs 34 c), curved gradually or more often with angular bend in the middle, provided with strong conical spines, 78– 91 – 97 x 5.5– 7.4 –10 µm. Distribution and ecology. Guyana Shelf, sandy bottom, at around 100 m depth. Remarks. This is the first record of the genus Halicnemia in the Western Atlantic. The genus has a chequered distribution in the Northwest Atlantic, Western Indian Ocean and South East Pacific (Van Soest et al. 2016). The present species stands out among the known species of Halicnemia by the twisted bends in the tornotes. It is doubtless an undescribed species, but I refrain from naming it in the absence of a proper specimen. : Published as part of Van, Rob W. M., 2017, Sponges of the Guyana Shelf, pp. 1-225 in Zootaxa 1 on page 53, DOI: 10.5281/zenodo.272951 : {"references": ["Van Soest, R. W. M., Boury-Esnault, N., Hooper, J. N. A., Rutzler, K., de Voogd, N. J., Alvarez de Glasby, B., Hajdu, E., Pisera, A. B., Manconi, R., Schoenberg, C., Janussen, D., Tabachnick, K. R., Klautau, M., Picton, B., Kelly, M., Vacelet, J., Dohrmann, M., Diaz, M. C., Cardenas, P. & Carballo, J. L. (2016) World Porifera database. Avaliable from: http: // www. marinespecies. org / porifera on 2016 - 05 - 21 (Accessed 11 Jan. 2017)"]} |
format |
Text |
author |
Van, Rob W. M. |
author_facet |
Van, Rob W. M. |
author_sort |
Van, Rob W. M. |
title |
Halicnemia |
title_short |
Halicnemia |
title_full |
Halicnemia |
title_fullStr |
Halicnemia |
title_full_unstemmed |
Halicnemia |
title_sort |
halicnemia |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://dx.doi.org/10.5281/zenodo.5698602 https://zenodo.org/record/5698602 |
long_lat |
ENVELOPE(-64.483,-64.483,-65.633,-65.633) ENVELOPE(161.900,161.900,-71.583,-71.583) ENVELOPE(-60.667,-60.667,-63.783,-63.783) |
geographic |
Pacific Indian Alvarez Van Veen Diaz |
geographic_facet |
Pacific Indian Alvarez Van Veen Diaz |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
http://publication.plazi.org/id/FF9178687757FFACFF83A36B907DFF9A http://zoobank.org/6D68A019-6F63-4AA4-A8B3-92D351F1F69B https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.272951 http://publication.plazi.org/id/FF9178687757FFACFF83A36B907DFF9A https://dx.doi.org/10.5281/zenodo.272985 http://zoobank.org/6D68A019-6F63-4AA4-A8B3-92D351F1F69B https://dx.doi.org/10.5281/zenodo.5698601 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.5698602 https://doi.org/10.5281/zenodo.272951 https://doi.org/10.5281/zenodo.272985 https://doi.org/10.5281/zenodo.5698601 |
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1766149055646269440 |