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Invertebrate Systematics Invertebrate Systematics Society
Systematics, phylogeny and biogeography
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Invertebrate Systematics

Invertebrate Systematics

Volume 38 Number 9 2024

IS24021A new genus of bamboo coral (Octocorallia: Scleralcyonacea: Keratoisididae) from the Whittard Canyon, Ireland, Northeast Atlantic

Declan Morrissey 0000-0003-3064-3560, A. Louise Allcock and Andrea M. Quattrini

A picture of a maximum likelihood tree, a photograph of Explorisis katharina, and a photograph of Explorisis poppyae.

Deep-sea corals are often not identified to species rank due to a lack of taxonomic expertise. Bamboo corals are an exclusively deep sea and prolific group of corals found in every ocean basin. In this study, we describe a new genus and two new species of bamboo coral from the Northeast Atlantic. By analysing both their morphology and DNA, we determined that this newly identified genus, named Explorisis, is closely related to the genera Dokidisis and Jasonisis. (Image credit: Declan Morrissey.)

IS24021 Abstract  |  IS24021 Full Text  | IS24021PDF (5.6 MB)  | IS24021Supplementary Material (882 KB)   Open Access Article

IS24023An integrative taxonomy study of cave-dwelling aeglids (Decapoda: Anomura: Aeglidae) from Natural Protected Areas in south-eastern Brazil, with description of three new species

Sérgio Luiz de Siqueira Bueno 0000-0002-4434-779X, Alexandre Lopes Camargo, Heros Augusto Santos Lobo, Ana Luiza Vera-Silva, Marcos Tavares and Fernando Luis Mantelatto 0000-0002-8497-187X

Three images of three new species of Aegla found in freshwater streams of caves in the Alto Ribeira karst of south-eastern Brazil.

Three new cave-dwelling aeglid species are described from the Alto Ribeira karst region, south-eastern Brazil using morphological and molecular (16S rDNA) data. Comparison of molecular sequences from several subterranean and epigean species in the region reveal two dispersal events involving epigean ancestors that resulted in two distinct subclades of extant cave-dwelling species. Adaptation to subterranean habitats among the cave-dwelling species developed independently within each subclade resulting in each having an exclusive group of both stygobitic and stygophilic species. (Image credit: Sérgio Bueno.)

IS24023 Abstract  | PDF (11.4 MB) - $60.00   | IS24023Supplementary Material (55 KB)

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