Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea)
Three fragments of a new species, referable to the apodid holothuroid genus Chiridota, and two specimens and 12 fragments of a phyllophorid, referable to Neothyonidium arthroprocessum, first described by the writer from False Bay, Western Cape Province, are here described from shallow water off the...
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ftjafricanj:oai:ojs.ajol.info:article/154433 2023-05-15T17:40:22+02:00 Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) Thandar, Ahmed S. 2017-04-06 application/pdf https://www.ajol.info/index.php/az/article/view/154433 eng eng NISC (Pty) Ltd https://www.ajol.info/index.php/az/article/view/154433/144016 https://www.ajol.info/index.php/az/article/view/154433 The copyright belongs to the Zoological Society of Southern Africa. African Zoology; Vol 31, No 4 (1996); 208-213 2224-073X 1562-7020 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2017 ftjafricanj 2017-04-08T23:57:58Z Three fragments of a new species, referable to the apodid holothuroid genus Chiridota, and two specimens and 12 fragments of a phyllophorid, referable to Neothyonidium arthroprocessum, first described by the writer from False Bay, Western Cape Province, are here described from shallow water off the Bluff in Durban, KwaZulu-Natal. The new apodid, described as C. durbanensis, appears to be quite close to C. furruginea(Verrill) from the north-west Atlantic waters, differing from it in the apparent absence of wheel papillae, absence of radial muscle deposits and the different form of tentacle deposits. Specimens of N. arthroprocessum are much smaller than the type material and show variations in the number and arrangement of tentacles, number of polian vesicles and the size of the spicules, perhaps indicating geographic and/or age variations. The characteristic U-shaped body wall deposits are here reported, for the first time, to be accompanied by their precursors, flat smooth buttons. The transformation of the latter to the U-shaped deposits is discussed. The occurrence of N. arthroprocessum from the warm KwaZulu-Natal waters is a noteworthy eastward extension of a species originally thought not to extend beyond False Bay, Western Cape Province. Article in Journal/Newspaper North West Atlantic AJOL - African Journals Online Buttons ENVELOPE(-64.264,-64.264,-65.244,-65.244) The Bluff ENVELOPE(-61.567,-61.567,-64.367,-64.367) False Bay ENVELOPE(-60.366,-60.366,-62.716,-62.716) Buttons The ENVELOPE(-64.264,-64.264,-65.244,-65.244) |
institution |
Open Polar |
collection |
AJOL - African Journals Online |
op_collection_id |
ftjafricanj |
language |
English |
description |
Three fragments of a new species, referable to the apodid holothuroid genus Chiridota, and two specimens and 12 fragments of a phyllophorid, referable to Neothyonidium arthroprocessum, first described by the writer from False Bay, Western Cape Province, are here described from shallow water off the Bluff in Durban, KwaZulu-Natal. The new apodid, described as C. durbanensis, appears to be quite close to C. furruginea(Verrill) from the north-west Atlantic waters, differing from it in the apparent absence of wheel papillae, absence of radial muscle deposits and the different form of tentacle deposits. Specimens of N. arthroprocessum are much smaller than the type material and show variations in the number and arrangement of tentacles, number of polian vesicles and the size of the spicules, perhaps indicating geographic and/or age variations. The characteristic U-shaped body wall deposits are here reported, for the first time, to be accompanied by their precursors, flat smooth buttons. The transformation of the latter to the U-shaped deposits is discussed. The occurrence of N. arthroprocessum from the warm KwaZulu-Natal waters is a noteworthy eastward extension of a species originally thought not to extend beyond False Bay, Western Cape Province. |
format |
Article in Journal/Newspaper |
author |
Thandar, Ahmed S. |
spellingShingle |
Thandar, Ahmed S. Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
author_facet |
Thandar, Ahmed S. |
author_sort |
Thandar, Ahmed S. |
title |
Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
title_short |
Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
title_full |
Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
title_fullStr |
Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
title_full_unstemmed |
Chiridota durbanensis new species and a new record of Neothyonidium arthroprocessum from the east coast of South Africa (Echinodermata: Holothuroidea) |
title_sort |
chiridota durbanensis new species and a new record of neothyonidium arthroprocessum from the east coast of south africa (echinodermata: holothuroidea) |
publisher |
NISC (Pty) Ltd |
publishDate |
2017 |
url |
https://www.ajol.info/index.php/az/article/view/154433 |
long_lat |
ENVELOPE(-64.264,-64.264,-65.244,-65.244) ENVELOPE(-61.567,-61.567,-64.367,-64.367) ENVELOPE(-60.366,-60.366,-62.716,-62.716) ENVELOPE(-64.264,-64.264,-65.244,-65.244) |
geographic |
Buttons The Bluff False Bay Buttons The |
geographic_facet |
Buttons The Bluff False Bay Buttons The |
genre |
North West Atlantic |
genre_facet |
North West Atlantic |
op_source |
African Zoology; Vol 31, No 4 (1996); 208-213 2224-073X 1562-7020 |
op_relation |
https://www.ajol.info/index.php/az/article/view/154433/144016 https://www.ajol.info/index.php/az/article/view/154433 |
op_rights |
The copyright belongs to the Zoological Society of Southern Africa. |
_version_ |
1766141277527605248 |