Latrunculiidae Topsent, 1922

Samaai, Toufiek, Govender, Vasha & Kelly, Michelle, 2004, Cyclacanthia n. g. (Demospongiae: Poecilosclerida: Latrunculiidae incertea sedis), a new genus of marine sponges from South African waters, and description of two new species, Zootaxa 725, pp. 1-18 : 4

publication ID

https://doi.org/ 10.5281/zenodo.169508

publication LSID

lsid:zoobank.org:pub:943247DB-0E16-4B89-9781-1CD3D336D6DC

DOI

https://doi.org/10.5281/zenodo.5662337

persistent identifier

https://treatment.plazi.org/id/BA3D8786-592F-FFAA-FEB5-FDA3FC5EFB29

treatment provided by

Plazi

scientific name

Latrunculiidae Topsent, 1922
status

 

Family Latrunculiidae Topsent, 1922 View in CoL

Diagnosis. Massive semispherical, pedunculate, or thinly encrusting sponges, with areolate porefields and raised fistular oscules; texture in life soft, slightly elastic, compressible, leathery in preservative. Colour in life typically liquorice brown, dark green, olive, brown or khaki, often tinged with forest­green or blue, or rarely pale beige to white. Structural megascleres are styles or anisostrongyles, rarely oxeas, these are frequently slightly irregular, sinuous, forming a compact tangential layer under the ectosome, and a widemeshed reticulation in the choanosome that, in some genera, is bounded by broad dense ascending ( Cyclacanthia n.g.), or chamber­forming tracts ( Tsitsikamma Samaai & Kelly ). Microscleres are typically acanthose anisodiscorhabds, or “chessman” spicules, or isospinodiscorhabds ( Cyclacanthia n.g.), bearing various apical and basal whorls (manubrium) of discrete spines that merge to various degrees to form crenulate discs; the subsidiary and median whorls (in the upper half and midway along the shaft, respectively) are variously present, and form crenulate to spinose discs. Microscleres are typically arranged in a compact or irregular palisade of spicules orientated perpendicular to the ectosome, their bases buried in the ectosomal membrane. Viviparous. Shallow sublittoral to abyssal, polar to warm temperate (modified from Samaai & Kelly, 2002).

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