A new species of sea anemone (Saccactis coliumensis n. sp.) living under hypoxic conditions on the central Chilean shelf

Riemann-Zürneck, Karin; Gallardo, Víctor A.

doi:10.1007/bf02365479

Cited by 11 publications

(14 citation statements)

References 13 publications

(13 reference statements)

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“…In contrast, the probable absence of tentacle spirocysts is considered of only generic or specific value, as there seems to be a general trend in endomyarian anemones to reduce the tentacle spirocysts both in size and abundance (e.g. Riemann-Ziirneck & Gallardo, 1990) with some of the family Haloclavidae obviously lacking them totally (Carlgren, 1940(Carlgren, ,1949. Similarly, the tentacle sphincters of Iosactis are valued as being of generic rank only, as they are obviously primitive characters which may be retained in some sporadic cases.…”

Section: Systematic Relationsmentioning

confidence: 99%

A Hemisessile Sea Anemone from the Porcupine Abyssal Plain, North Atlantic Ocean: Iosactis Vagabunda gen. nov., sp. nov.

Riemann-Zürneck

1997

J. Mar. Biol. Ass.

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The Porcupine Abyssal Plain in the north-eastern Atlantic Ocean is subject to periodical deposition of phytodetritus and has a highly diverse benthic fauna dependent on this source of organic matter. Among the most abundant species from the northern study site of the Institute of Oceanographic Sciences Deacon Laboratory (IOSDL) at ~48°50′N 16°30′W, 4850 m, is Iosactis vagabunda gen. nov., sp. nov. (Cnidaria: Actiniaria, Iosactiidae fam. nov.), a small endomyarian sea anemone. The fact that this species is a burrower, with a smooth, unspecialized column, and a rounded aboral end provided with a central pit, makes it stand out from the other families of endomyarian anemones and prompted the establishment of the new family Iosactiidae. There is evidence that the closest relatives of the new family are the ‘deep water actiniids’ (e.g. Bolocera, Liponema, Leipsiceras), and the Andresiidae. Long-term in situ time-lapse photographs indicate a unique behaviour of this anemone in that it moves out of its hole at times, presumably exhibiting a hemisessile lifestyle in this peculiar abyssal habitat.

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Section: Systematic Relationsmentioning

confidence: 99%

A Hemisessile Sea Anemone from the Porcupine Abyssal Plain, North Atlantic Ocean: Iosactis Vagabunda gen. nov., sp. nov.

Riemann-Zürneck

1997

J. Mar. Biol. Ass.

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“…Likewise, Nemactis primula (Drayton in Dana, 1846) has been exclusively reported for the central region (Lima, ~5%). Recent reports (Spano et al ., 2022) indicate that Oulactis coliumensis (Riemann-Zürneck & Gallardo, 1990) inhabit the central and southern coasts.…”

Section: Resultsmentioning

confidence: 99%

Biodiversity and distribution of sea anemones (Cnidaria, Anthozoa, Actiniaria) in Peru

Durand

Valdivia-Chávez

Aramayo

2022

Preprint

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Diverse and abundant sea anemones are common in shallow marine areas. Detailed biodiversity analysis in Peru are comparatively scarce. To contribute to the biodiversity inventory and distribution information of this taxa, we analyzed exhaustively the available bibliography in Peruvian waters. A total of 23 anemone species were identified, distributed in 68 localities, and grouped into 1 Order (Actiniaria), 6 Families (Actiniidae, Actinostolidae, Aiptasiidae, Isanthidae, Phelliidae and Sagartiidae) and 20 Genera. The most reported species are Anthothoe chilensis (37 references), Phymactis clematis (28), Phymanthea pluvia (27), Oulactis concinnata (18), and Antholoba achates (15). Lima is the region with the highest number of publications, followed by La Libertad, Piura, Lambayeque, and Ancash. Anthothoe chilensis occurs in almost all the Peruvian coastal regions. On the contrary, O. concinnata has been primarily observed in Lima, while A. achates occurred only in the southern regions (Ica, Arequipa, and Moquegua). Rocky substrates (~55% records) seem to be the most suitable habitat for sea anemones in Peru, corresponding to exposed (e.g. vertical walls) and sheltered zones (e.g. rocky crevices, caves, under rock areas). Although most of the species in Peru exhibit a relatively wide spatial distribution, our results suggest that there are several regions with little or no research efforts. Despite a growing study effort over the past 30 years (>50% of biodiversity reported), the current biodiversity status for this group is still unclear. A significant effort is needed to better analyze occurrence patterns and unveil new species regarding a changing environmental scenario with human influence.

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“…Saccactis Lager, 1911 Type species: Saccactis Mc Murrichi Lager, 1911, by subsequent designation. Nomenclature notes: Type species was designated by Riemann-Zürneck and Gallardo (1990). Authorship is in agreement with Neave (1940b).…”

Section: Currently Considered Valid: Nomentioning

confidence: 86%

Genera of orders Actiniaria and Corallimorpharia (Cnidaria, Anthozoa, Hexacorallia), and their type species*

Fautin

Zelenchuk

Dinesh

2007

Zootaxa

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We determined the type species, if any, for the 425 genera of the order Actiniaria and for the 19 genera of order Corallimorpharia. In Actiniaria, 393 genera have a clear type species; 46 generic names are homonyms, 17 of which are senior, 26 of which are junior (six have been replaced), and three are both junior and senior. Of the 18 available genera of Corallimorpharia, there are no junior homonyms, and one senior homonym.

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A new species of sea anemone (Saccactis coliumensis n. sp.) living under hypoxic conditions on the central Chilean shelf

Cited by 11 publications

References 13 publications

A Hemisessile Sea Anemone from the Porcupine Abyssal Plain, North Atlantic Ocean: Iosactis Vagabunda gen. nov., sp. nov.

A Hemisessile Sea Anemone from the Porcupine Abyssal Plain, North Atlantic Ocean: Iosactis Vagabunda gen. nov., sp. nov.

Biodiversity and distribution of sea anemones (Cnidaria, Anthozoa, Actiniaria) in Peru

Genera of orders Actiniaria and Corallimorpharia (Cnidaria, Anthozoa, Hexacorallia), and their type species*

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