Iophon gaussi 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 : 406

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.10562130
persistent identifier	https://treatment.plazi.org/id/03D687FD-C50E-825C-FF45-FACE6E93B929
treatment provided by	Plazi (2024-01-24 14:04:37, last updated 2024-11-30 02:48:56)
scientific name	Iophon gaussi Hentschel, 1914
status

Treatment

Iophon gaussi Hentschel, 1914 View in CoL

( Fig. 2a–e View FIGURE 2 )

Restricted synonymy: Iophon spatulatum var. gaussi Hentschel, 1914

Material examined: 4 specimens collected at stations 2 ( SOI; 60°53'S, 44°33'W; 218 m; 20/2/2014; GoogleMaps MACN-In 44368; GoogleMaps IEO-CSIC Col.), 6 ( SOI; 61°25'S, 44°37'W; 290 m; 3/3/2014; GoogleMaps MACN-In 44369; IEO-CSIC Col.), 10 ( SOI; 60°59'S, 46°43'W; 307 m; GoogleMaps 5/3/2014; MACN-In 44370) and 12 ( SOI; 60°51'S, 44°50'W; GoogleMaps 226 m; 11/2/2014; MACNIn 44371; IEO-CSIC Col) GoogleMaps .

Description: Massive broken specimens, yellow to brown ( Figure 2a View FIGURE 2 ). Spicules are smooth robust oxeas 470– 640 µm by 30 µm; acanthotylotes 280–400 µm by 10–15 µm; anisochelae 20–22.5 µm and bipocilli ~10 µm ( Figure 2b–e View FIGURE 2 ).

Remarks: This species was recorded from Antarctic waters by Hentschel (1914) and Ríos (2006). It can be distinguished from I. unicorne (see below) by the morphology of the acanthotylotes. This finding represents the first record for the SOI.

References

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

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 2. a–e Iophon gaussi. a. general morphology, scale: 4 cm; b. oxeote, scale: 100 µm; c. tylote, scale: 60 mm; d. anisochelae, scale: 20 µm; e. bipocilli, scale: 5 µm, taken from Ríos (2006). f–j. Iophon unicorne, f. general morphology, scale: 4 cm; g. oxeote. Scale: 100 µm; h. tylote, scale: 50 µm; i. anisochelae, scale: 8 µm; j. bipocilli, scale: 10 µm.