Tsitsikamma (Clavicaulis), Samaai, Kelly, Payne

Samaai, Toufiek, Kelly, Michelle, Ngwakum, Benedicta, Payne, Robyn, Teske, Peter R., Janson, Liesl, Kerwath, Sven, Parker, Denham & Gibbons, Mark J., 2020, New Latrunculiidae (Demospongiae, Poecilosclerida) from the Agulhas ecoregion of temperate southern Africa, Zootaxa 4896 (3), pp. 409-442: 426

publication ID

https://doi.org/10.11646/zootaxa.4896.3.4

publication LSID

lsid:zoobank.org:pub:FD238C7C-E3F8-408B-9711-9A0BFFF69692

DOI

http://doi.org/10.5281/zenodo.4391114

persistent identifier

http://treatment.plazi.org/id/0A5787DE-A96C-FFDB-FF5C-6DDCFE09900C

treatment provided by

Plazi

scientific name

Tsitsikamma (Clavicaulis)
status

subgen. nov.

Subgenus Clavicaulis Samaai, Kelly, Payne and Ngwakum subgen. nov.  

Type species. Tsitsikamma pedunculata Samaai, Gibbons, Kelly and Davies-Coleman, 2003: 19   ; 19–20, fig. 3G, 4F, 6B.

Diagnosis. Tsitsikamma   species that are either stalked wrinkled/smooth and non-stalked wrinkled/smooth attached by a narrow base, having a single purse-like chamber with a much softer interior of wispy tracts. The isochiadiscorhabd microscleres have either two or three cylindrical-conical tubercles projecting from the shaft, though sometimes the third whorl is rudimentary.

Etymology. club-shaped (clavi - combining form NL, fr. L, fr. clava = club), Stalk (caul- or cauli- or caulocombining form (cauli - fr. L caulis = stalk)

Remarks. We herewith establish the new subgenus Clavicaulis   subgen. nov. for the species Tsitsikamma pedunculata   , T. michaeli Parker-Nance, 2019   , T. madib   a sp. nov. and T. beukesi   sp. nov., based on the stalked, sack or purse-shaped body morphology of the sponges, which, in effect, forms a single, reinforced chamber, unlike subgenus Tsitsikamma   which is characterised by the possession of a rigid, honeycomb-like structure, with chambers visible to the unaided eye.