Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda
Bougainvillia aberrans n.sp. is described from Bermuda in the western North Atlantic Ocean. Specimens were collected at a depth of 150 fathoms (274 m) from the polypropylene buoy line of a crab trap. The hydroid colony of B. aberrans is erect, with a polysiphonic hydrocaulus, a smooth to somewhat wr...
Published in: | Canadian Journal of Zoology |
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1993
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Online Access: | http://dx.doi.org/10.1139/z93-132 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-132 |
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crcansciencepubl:10.1139/z93-132 2023-12-17T10:46:40+01:00 Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda Calder, Dale R. 1993 http://dx.doi.org/10.1139/z93-132 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-132 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 71, issue 5, page 997-1002 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1993 crcansciencepubl https://doi.org/10.1139/z93-132 2023-11-19T13:39:01Z Bougainvillia aberrans n.sp. is described from Bermuda in the western North Atlantic Ocean. Specimens were collected at a depth of 150 fathoms (274 m) from the polypropylene buoy line of a crab trap. The hydroid colony of B. aberrans is erect, with a polysiphonic hydrocaulus, a smooth to somewhat wrinkled perisarc, hydranths having a maximum of about 16 tentacles, and medusa buds arising only from hydranth pedicels. Medusae liberated in the laboratory from these hydroids differ from all other known species of the genus in having a long, spindle-shaped manubrium, lacking oral tentacles, having marginal tentacles reduced to mere stubs, and being very short-lived (surviving for a few hours at most). Gonads develop in medusa buds while they are still attached to the hydroids, and gametes are shed either prior to liberation of the medusae or shortly thereafter. The eggs are surrounded by an envelope bearing nematocysts (heterotrichous microbasic euryteles). The cnidome of both hydroid and medusa stages consists of desmonemes and heterotrichous microbasic euryteles. The diagnosis of the genus Bougainvillia is modified to accommodate this new deep-water species. Article in Journal/Newspaper North Atlantic Canadian Science Publishing (via Crossref) Medusa ENVELOPE(157.417,157.417,-79.633,-79.633) Canadian Journal of Zoology 71 5 997 1002 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Calder, Dale R. Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Bougainvillia aberrans n.sp. is described from Bermuda in the western North Atlantic Ocean. Specimens were collected at a depth of 150 fathoms (274 m) from the polypropylene buoy line of a crab trap. The hydroid colony of B. aberrans is erect, with a polysiphonic hydrocaulus, a smooth to somewhat wrinkled perisarc, hydranths having a maximum of about 16 tentacles, and medusa buds arising only from hydranth pedicels. Medusae liberated in the laboratory from these hydroids differ from all other known species of the genus in having a long, spindle-shaped manubrium, lacking oral tentacles, having marginal tentacles reduced to mere stubs, and being very short-lived (surviving for a few hours at most). Gonads develop in medusa buds while they are still attached to the hydroids, and gametes are shed either prior to liberation of the medusae or shortly thereafter. The eggs are surrounded by an envelope bearing nematocysts (heterotrichous microbasic euryteles). The cnidome of both hydroid and medusa stages consists of desmonemes and heterotrichous microbasic euryteles. The diagnosis of the genus Bougainvillia is modified to accommodate this new deep-water species. |
format |
Article in Journal/Newspaper |
author |
Calder, Dale R. |
author_facet |
Calder, Dale R. |
author_sort |
Calder, Dale R. |
title |
Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
title_short |
Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
title_full |
Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
title_fullStr |
Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
title_full_unstemmed |
Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda |
title_sort |
bougainvillia aberrans (cnidaria, hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off bermuda |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/z93-132 http://www.nrcresearchpress.com/doi/pdf/10.1139/z93-132 |
long_lat |
ENVELOPE(157.417,157.417,-79.633,-79.633) |
geographic |
Medusa |
geographic_facet |
Medusa |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Canadian Journal of Zoology volume 71, issue 5, page 997-1002 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z93-132 |
container_title |
Canadian Journal of Zoology |
container_volume |
71 |
container_issue |
5 |
container_start_page |
997 |
op_container_end_page |
1002 |
_version_ |
1785570249481912320 |