Microxina charcoti Topsent, 1916

Schejter, Laura, Cristobo, Javier & Ríos, Pilar, 2024, New records of demosponges (Porifera) from the South Orkney Islands (Antarctica) with a checklist for the region, Zootaxa 5403 (4), pp. 401-430 : 420

publication ID	https://doi.org/10.11646/zootaxa.5403.4.1
publication LSID	lsid:zoobank.org:pub:C2EAB19C-07CB-4013-9C93-D25259EA2673
DOI	https://doi.org/10.5281/zenodo.10562212
persistent identifier	https://treatment.plazi.org/id/03D687FD-C518-824A-FF45-FA466D6AB931
treatment provided by	Plazi (2024-01-24 14:04:37, last updated 2024-11-30 02:48:56)
scientific name	Microxina charcoti Topsent, 1916
status

Treatment

Microxina charcoti Topsent, 1916 View in CoL

( Fig. 10d–f View FIGURE 10 )

Material examined: 3 specimens collected in station 6 ( SOI; 61°25'S, 44°37'W; 290 m; 3/3/2014; MACN-In 44387; collected by Laura Schejter) GoogleMaps .

Description: Tubular and ramified specimens, with hairy appearence and with a conulose surface, beige in colour ( Figure 10d View FIGURE 10 ). Spicules are straight oxeas with sharp ends of 570–710 µm by 25–30 µm and microxeas of 50–65 µm ( Figure 10e, f View FIGURE 10 ).

Remarks: As far as we know, this species has been only recorded by Topsent (1916, 1917) and Burton (1929). This represents a new record for the SOI.

References

Burton, M. (1929) Porifera. Part II. Antarctic Sponges. British Antarctic Terra Nova Expedition 1910. Natural History Report, Zoology, 6, 393 - 458.

Topsent, E. (1916) Diagnoses d'eponges recueillies dans l'Antarctique par le Pourquoi-Pas? Bulletin du Museum national d'histoire naturelle, Paris, Series 1, 22 (3), 163 - 172.

Topsent, E. (1917) Spongiaires. In: Joubin, L. (Ed.), Deuxieme Expedition Antarctique Francaise (1908 - 1910) Commandee par le Dr. Jean Charcot. Sciences Physiques: Documents Scientifiques (Paris). Vol. 4. Masson & Cie, Paris, pp. 1 - 88, pls. 1 - 6.