Tedania (Tedaniopsis) tantula ( 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 : 416

Tedania (Tedaniopsis) tantula ( Kirkpatrick, 1907)

( Fig. 8a )

Restricted synonymy: Oceanapia tantula Kirkpatrick, 1907 , Paratedania tantula ( Kirkpatrick, 1907) , Tedania tantula ( Kirkpatrick, 1907) .

Material examined: 13 specimens collected in stations 2 ( SOI; 60°53'S, 44°33'W; 218 m; 20/2/2014; MACNIn 44401; IEO-CSIC Col.), 4 ( SOI; 60°55'S, 44°04'W; 256 m; 20/2/2014; MACN-In 44402), 5 ( SOI; 61°25'S, 42°55'W; 589 m; 3/3/2014; MACN-In 44403), 10 ( SOI; 60°59'S, 46°43'W; 307 m; 5/3/2014; MACN-In 44404; IEO-CSIC Col.), 16 ( SOI; 60°40,992'S, 46°14,560'W; 104 m; 7/3/2012; MACN-In 44406; IEO-CSIC Col.) and 18 ( SOI; 60°47,561'S, 45°36,854'W; 96 m; 10/3/2012; MACN-In 44405) .

Description: Specimens of tubular shape, mostly hollow, some of them erect and attached to substrata (pebbles, dead corals, dead mollusk shells) ( Figure 8a ). Chitinous ectosome. Spicules are styles, usually curved and abruptly pointed of 450–670 µm by 20–40 µm, tornotes of 420–630 µm by 20 µm, and onychaetes of 440–670 and 100–120 µm (see Göcke & Janussen, 2013 for a complete description and discussion of this species).

Remarks: This species has been previously recorded by Kirkpatrick (1908), Burton (1932), Koltun (1964), Ríos (2006), Göcke & Janussen (2013) and Goodwin et al. (2019), amongst others. This species is very common in Antarctic and sub-Antarctic waters. However, this represents the first record for the SOI.

Figures

FIGURE 8. Tedania species. a. T. (T.) tantula, general morphology, scale: 2,5 cm; b–e. T. massa. b. general morphology, scale: 3,5 cm; c. style, scale: 160 µm; d. tornote, scale: 85 µm; e. onichaete I, scale: 130 µm; f. T. (T.) charcoti, general morphology, scale: 2 cm; g–j. T. oxeata, g. general morphology, scale: 3,5 cm; h. oxea, scale: 200 µm; i. tornote, scale: 150 µm; j. raphides, scale: 150 µm.