Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil
Arinosaster patriciae gen. nov. et sp. nov. is the second continental sponge registered for a subterranean environment (cave habitat) in Brazil and the Neotropical Region. The sponges were recorded and collected in a 5m depth technical dive in a sinkhole of Rio Claro, tributary of Rio Arinos, Tapajó...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2021-01-01
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| Series: | Neotropical Biology and Conservation |
| Online Access: | https://neotropical.pensoft.net/article/50156/download/pdf/ |
| _version_ | 1818759523378135040 |
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| author | Cecília Volkmer-Ribeiro Maria da Conceição Tavares-Frigo Alexandre Cunha Ribeiro Maria Elina Bichuette |
| author_facet | Cecília Volkmer-Ribeiro Maria da Conceição Tavares-Frigo Alexandre Cunha Ribeiro Maria Elina Bichuette |
| author_sort | Cecília Volkmer-Ribeiro |
| collection | DOAJ |
| description | Arinosaster patriciae gen. nov. et sp. nov. is the second continental sponge registered for a subterranean environment (cave habitat) in Brazil and the Neotropical Region. The sponges were recorded and collected in a 5m depth technical dive in a sinkhole of Rio Claro, tributary of Rio Arinos, Tapajós system, Amazon Basin (-13.8170386, -56.6914225) at the locality of Sumidouro do Rio Claro, Municipality of Diamantino, state of Mato Grosso, central western Brazil. The cave is placed in sandstone rocks of the Parecis Group (Upper Cretaceous). “In situ” photographs of colonies, of living specimens, SEM illustrations of dissociated spicules as well as of the skeletal structure, are presented. The occurrence of euaster microscleres of the type spherasters are for the first time reported for continental sponges but, also new, is the occurrence of spongin fibers, composing with fibers of silicious spicules in the skeletal arrangement. The absence of gemmules in the studied material and the fact that new specimens remain undetected call for the proposition of a new monospecific genus to be retained as Incertae Sedis until new and gemmuliferous colonies are found. |
| first_indexed | 2024-12-18T06:44:05Z |
| format | Article |
| id | doaj.art-b4b0b88a2bd74a6eb9c2d3134013850f |
| institution | Directory Open Access Journal |
| issn | 2236-3777 |
| language | English |
| last_indexed | 2024-12-18T06:44:05Z |
| publishDate | 2021-01-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Neotropical Biology and Conservation |
| spelling | doaj.art-b4b0b88a2bd74a6eb9c2d3134013850f2022-12-21T21:17:33ZengPensoft PublishersNeotropical Biology and Conservation2236-37772021-01-01161455710.3897/neotropical.16.e5015650156Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from BrazilCecília Volkmer-Ribeiro0Maria da Conceição Tavares-Frigo1Alexandre Cunha Ribeiro2Maria Elina Bichuette3Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do SulMuseu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do SulUniversidade Federal de Mato GrossoUniversidade Federal de São CarlosArinosaster patriciae gen. nov. et sp. nov. is the second continental sponge registered for a subterranean environment (cave habitat) in Brazil and the Neotropical Region. The sponges were recorded and collected in a 5m depth technical dive in a sinkhole of Rio Claro, tributary of Rio Arinos, Tapajós system, Amazon Basin (-13.8170386, -56.6914225) at the locality of Sumidouro do Rio Claro, Municipality of Diamantino, state of Mato Grosso, central western Brazil. The cave is placed in sandstone rocks of the Parecis Group (Upper Cretaceous). “In situ” photographs of colonies, of living specimens, SEM illustrations of dissociated spicules as well as of the skeletal structure, are presented. The occurrence of euaster microscleres of the type spherasters are for the first time reported for continental sponges but, also new, is the occurrence of spongin fibers, composing with fibers of silicious spicules in the skeletal arrangement. The absence of gemmules in the studied material and the fact that new specimens remain undetected call for the proposition of a new monospecific genus to be retained as Incertae Sedis until new and gemmuliferous colonies are found.https://neotropical.pensoft.net/article/50156/download/pdf/ |
| spellingShingle | Cecília Volkmer-Ribeiro Maria da Conceição Tavares-Frigo Alexandre Cunha Ribeiro Maria Elina Bichuette Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil Neotropical Biology and Conservation |
| title | Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil |
| title_full | Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil |
| title_fullStr | Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil |
| title_full_unstemmed | Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil |
| title_short | Arinosaster patriciae (Porifera, Demospongiae): new genus and species and the second record of a cave freshwater sponge from Brazil |
| title_sort | arinosaster patriciae porifera demospongiae new genus and species and the second record of a cave freshwater sponge from brazil |
| url | https://neotropical.pensoft.net/article/50156/download/pdf/ |
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