Lissodendoryx (Ectyodoryx) anacantha ( Hentschel, 1914 )

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 : 411

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.10562148
persistent identifier	https://treatment.plazi.org/id/03D687FD-C501-8253-FF45-FEE36ED2BDFD
treatment provided by	Plazi (2024-01-24 14:04:37, last updated 2024-11-30 02:48:56)
scientific name	Lissodendoryx (Ectyodoryx) anacantha ( Hentschel, 1914 )
status

Treatment

Lissodendoryx (Ectyodoryx) anacantha ( Hentschel, 1914) View in CoL

( Figure 4j–o View FIGURE 4 )

Restricted synonymy: Ectyodoryx frondosa var. anacantha Hentschel, 1914 , Ectyodoryx anacantha Hentschel, 1914 .

Material examined: 1 specimen collected at station 7 ( SOI; 61°00'S, 46°44'W; 609 m; 3/3/2014; MACN-In 44386; IEO-CSIC Col.) GoogleMaps .

Description: Specimen erect, massive, beige in colour, with a conulose surface ( Figure 4j View FIGURE 4 ). In the choanosomal skeleton, the principal acanthostyles are disposed in multispicular axes. Spicules are acanthostyles I, spined only at their tips, of 470–660 µm by 30 µm; acanthostyles II completely spined 210–320 µm by 10–15 µm; strongyles also spined at their tips of 230–300 µm by 7.5 µm, arcuate isochelae, 25 µm with curved alae and two categories of sigmas of 50–55 µm and 20–25 µm ( Figure 4k–o View FIGURE 4 ).

Remarks: This species is distributed in the Antarctic domain. It was previously recorded by Hentschel (1914) at the East Antarctic Wilkes Land (type locality) and at Kermadec Island, at Palmer Archipelago (Antarctic Peninsula) by Burton (1932), at the South Shetland Is. and East Antarctic Wilkes Land by Koltun (1964) and Ríos (2006). This is the first report for the SOI.

References

Burton, M. (1932) Sponges. Discovery Reports, 6, 237 - 392, pls. 48 - 57. https: // doi. org / 10.5962 / bhl. part. 24379

Hentschel, E. (1914) Monaxone Kieselschwamme und Hornschwamme der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition, 15 (1), 35 - 141, pls. IV - VIII.

Koltun, V. M. (1964) Sponges of the Antarctic. 1 Tetraxonida and Cornacuspongida. In: Pavlovskii, E. P., Andriyashev, A. P. & Ushakov, P. V. (Eds.), Biological Reports of the Soviet Antarctic Expedition (1955 - 1958). Akademiya Nauk SSSR, Moscow- Leningrad, pp. 6 - 133 + 443 - 448.

Rios, P. (2006) Esponjas del Orden Poecilosclerida de las campanas espanolas de bentos antartico. PhD Thesis, Santiago de Compostela University, Santiago, 527 pp.

Figures

FIGURE 4. a. Coelosphaera (C.) koltuni, general morphology, scale: 2 cm; b–c. Inflatella belli; b. general morphology, scale: 2 cm; c. anisotornote, scale: 200 µm; d–i. Lissodendoryx (E.) ramilobosa, d. general morphology, scale: 2 cm; e. style I, scale: 100 µm; f. style II, scale: 70 µm; g. strongyle, scale: 50 µm; h. isochelae, scale: 20 µm; i. sigmas I and II, scale: 30 µm; j–o. Lissodendoryx (E.) anacantha, j. general morphology, scale: 15 mm; k. principal acanthostyle, scale: 100 µm; l. acanthostyle II, scale: 50 µm; m. strongyle, scale: 100 µm; n. sigmas I and II, scale: 25 µm; o. isochelae, scale: 25 µm.