Clathria (Clathria) Schmidt, 1862
publication ID |
https://doi.org/ 10.11646/zootaxa.4623.2.5 |
publication LSID |
lsid:zoobank.org:pub:7A20397D-A26E-4B7D-80DF-6B78AE999F6C |
DOI |
https://doi.org/10.5281/zenodo.5611475 |
persistent identifier |
https://treatment.plazi.org/id/5849EC13-FFDF-D84B-C3FA-FE9095DA2D87 |
treatment provided by |
Plazi |
scientific name |
Clathria (Clathria) Schmidt, 1862 |
status |
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Subgenus Clathria (Clathria) Schmidt, 1862 View in CoL
Clathria (Clathria) microxa Desqueyroux, 1972 View in CoL
( Fig. 6 View FIGURE 6 )
Material. CILE 80, Seno Magdalena E (44.613885°S 72.941490°W), Puerto Cisnes (Chile), depth 25 m, on a vertical cliff, 2014 GoogleMaps .
Description. Small (4 cm 2), massive sponge, 2 cm thick. Surface rugose, with slightly elevated, round oscules. The colour in life is dark purple ( Fig. 6A View FIGURE 6 ). The sponge is soft and fragile.
Skeleton. The skeleton shows a typical plumo-reticulate arrangement present in Clathria (Clathria) .
Spicules. Megascleres: choanosomal principal styles, straight or slightly curved, with smooth shaft and microspinate heads, 326.4 (376.9) 520.2 x 16.4 (18.6) 20.5 µm ( Fig. 6B View FIGURE 6 ); subectosomal auxiliary subtylostyles, straight or sinuous, spines restricted to the heads, 244.8 (402.9) 561 x 5.7 (9) 12.3 µm ( Fig. 6C View FIGURE 6 ); echinating acanthostyles, straight, with spines along the entire spicule length, spines of the head may be bifid or trifid ( Fig. 6D View FIGURE 6 ), 119 (144.5) 170 x 8.5 µm. Microscleres: toxas variously curved in the middle, or even straight ( Fig. 6E View FIGURE 6 ), 82 (216.9) 369 µm; straight microxeas, often showing a biconical shape ( Fig. 6F View FIGURE 6 ), 36.9 (42) 45.1 x 2.6 (2.7) 5.2 µm.
Ecology. This species was first recorded at 50–90 m depth ( Desqueyroux, 1972) and then found as epibiotic on mollusc shells ( Zygochlamys patagonica and Fusitriton magellanicus ) between 92 and 100 m depth ( Schejter et al., 2006, 2011). Our specimen lived on a vertical cliff at 25 m depth.
Distribution. Corcovado Gulf ( Chile) ( Desqueyroux, 1972), Argentina ( Schejter et al., 2006, 2011) and Puyuhuapi Fjord (Queulat Fjord, Chilean Patagonia).
Remarks. Desqueyroux (1972) observed a single type of angulate toxas in the holotype. Also, Schejter et al. (2006) recorded a single type of long, and multiply bent toxa. Since we observed toxas of different shapes, even if they cannot be divided into categories, the spicule variability of the species increases. Furthermore, due to more detailed SEM photos, we could detect the microspination of the heads of styles and subtylostyles.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Clathria (Clathria) Schmidt, 1862
Bertolino, Marco, Costa, Gabriele, Reboa, Anna, Bavestrello, Giorgio, Pansini, Maurizio, Betti, Federico, Bo, Marzia & Daneri, Giovanni 2019 |
Clathria (Clathria) microxa
Desqueyroux 1972 |