Peer-reviewed veterinary case report
Two new species of <i>Hyalonema</i> (Hexactinellida, Amphidiscosida, Hyalonematidae) from the Indo-West Pacific.
- Year:
- 2025
- Authors:
- Gong L et al.
- Affiliation:
- Institute of Oceanology · China
Abstract
This study describes two new species collected from deep-sea environments in the Indo-West Pacific. Hyalonema (Cyliconema) dexiangi<b>sp. nov.</b>, collected from the Indian Ocean, is characterized by distinctive finger-like protuberances on the body surface, the presence of choanosomal pentactins, the co-occurrence of micropentactins and microhexactins, and the absence of mesamphidiscs. Hyalonema (Cyliconema) subconica<b>sp. nov.</b>, sampled from a seamount in the western Pacific Ocean, is distinguished by the presence of pinular diactins, a unique combination of choanosomal spicules (diactins, pentactins, and hexactins), and the presence of basalia bearing two-toothed anchors. In addition to their morphological distinctions, molecular phylogenetic analyses based on 16S rDNA sequences indicate a close genetic relationship between the two species.
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Search related cases →Original publication: https://europepmc.org/article/MED/41395218