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A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)

Abstract. A new genus, Limatium gen. n., and two new species, L. pagodula sp. n. and L. aureum sp. n. are described, found on outer slopes of barrier reefs and fringing reefs in the South Pacific. They are rare for cerithiids, which typically occur in large populations. The two new species are repre...

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Autores principales: Strong, Ellen E., Bouchet, Philippe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5962629/
https://www.ncbi.nlm.nih.gov/pubmed/29844710
http://dx.doi.org/10.3897/zookeys.758.25100
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author Strong, Ellen E.
Bouchet, Philippe
author_facet Strong, Ellen E.
Bouchet, Philippe
author_sort Strong, Ellen E.
collection PubMed
description Abstract. A new genus, Limatium gen. n., and two new species, L. pagodula sp. n. and L. aureum sp. n. are described, found on outer slopes of barrier reefs and fringing reefs in the South Pacific. They are rare for cerithiids, which typically occur in large populations. The two new species are represented by 108 specimens sampled over a period of 30 years, only 16 of which were collected alive. Three subadults from the Philippines and Vanuatu likely represent a third species. In addition to their rarity, Limatium species are atypical for cerithiids in their smooth, polished, honey to golden brown shells with distinctive white fascioles extending suture to suture. The radula presents a unique morphology that does not readily suggest an affinity to any of the cerithiid subfamilies. Two live-collected specimens, one of each species and designated as holotypes, were preserved in 95% ethanol and sequenced. Bayesian analysis of partial COI and 16S rDNA sequences demonstrates a placement in the Bittiinae, further extending our morphological concept of the subfamily.
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spelling pubmed-59626292018-05-29 A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda) Strong, Ellen E. Bouchet, Philippe Zookeys Research Article Abstract. A new genus, Limatium gen. n., and two new species, L. pagodula sp. n. and L. aureum sp. n. are described, found on outer slopes of barrier reefs and fringing reefs in the South Pacific. They are rare for cerithiids, which typically occur in large populations. The two new species are represented by 108 specimens sampled over a period of 30 years, only 16 of which were collected alive. Three subadults from the Philippines and Vanuatu likely represent a third species. In addition to their rarity, Limatium species are atypical for cerithiids in their smooth, polished, honey to golden brown shells with distinctive white fascioles extending suture to suture. The radula presents a unique morphology that does not readily suggest an affinity to any of the cerithiid subfamilies. Two live-collected specimens, one of each species and designated as holotypes, were preserved in 95% ethanol and sequenced. Bayesian analysis of partial COI and 16S rDNA sequences demonstrates a placement in the Bittiinae, further extending our morphological concept of the subfamily. Pensoft Publishers 2018-05-14 /pmc/articles/PMC5962629/ /pubmed/29844710 http://dx.doi.org/10.3897/zookeys.758.25100 Text en Ellen E. Strong, Philippe Bouchet http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Strong, Ellen E.
Bouchet, Philippe
A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title_full A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title_fullStr A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title_full_unstemmed A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title_short A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda)
title_sort rare and unusual new bittiine genus with two new species from the south pacific (cerithiidae, gastropoda)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5962629/
https://www.ncbi.nlm.nih.gov/pubmed/29844710
http://dx.doi.org/10.3897/zookeys.758.25100
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