Isodictya lankesteri ( Kirkpatrick, 1907 )

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 : 413

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.10562158

persistent identifier

https://treatment.plazi.org/id/03D687FD-C507-8255-FF45-FE576BF9BD91

treatment provided by

Plazi

scientific name

Isodictya lankesteri ( Kirkpatrick, 1907 )
status

 

Isodictya lankesteri ( Kirkpatrick, 1907) View in CoL

( Figure 5m –p View FIGURE 5 )

Restricted synonymy: Cercidochela lankesteri Kirkpatrick, 1907 .

Material examined: 2 specimens collected at station 16 ( SOI; 60°40,992'S, 46°14,560'W; 104 m; 7/3/2012; MACN-In 44378; IEO-CSIC Col.) GoogleMaps .

Description: One large arborescent specimen, 43 cm high, and a small broken cylindrical specimen, light beige in colour. The larger and complete specimen has a velvety surface, with multiple oscula evident on the branches, the oscula are roughly aligned. The rhizoid anchor structure is conspicuous and has sediment grains and small pebbles attached ( Fig. 5m View FIGURE 5 ). The skeleton is composed of ascending plumose multispicular tracts of oxeas. These are connected by other oxeas ( Figure 5p View FIGURE 5 ). Microscleres are abundant and dispersed throughout the choanosome. Megascleres are oxeas 270–430 µm by 10–20 µm; microscleres are canonochelae of 50–70 µm ( Figure 5n, o View FIGURE 5 ).

Remarks: This species was previously recorded by Hentschel (1914), Burton (1929), Desqueyroux (1975), Campos et al. (2007) and Fernández et al. (2021), amongst others. This is a new record for the SOI.

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