Antarctotetilla leptoderma

• Main Authors: Carella, Mirco, Uriz, Maria J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Tetractinellida; Tetillidae; Antarctotetilla; Antarctotetilla leptoderma; Antarctic; Argentine; Antarc*
• Online Access: https://zenodo.org/record/5988727; https://doi.org/10.5281/zenodo.5988727

Antarctotetilla leptoderma (Sollas, 1886) Synonymy: Tetilla leptoderma Sollas, 1886; Tethya stylifera Lendenfeld, 1907; Tetilla grandis Sollas, 1886; Tetilla grandis var. alba Sollas, 1886. Material examined: holotype of Tetilla leptoderma NHM 89.1.1.3 Sollas, 1886, Rio de la Plata, Argentine; Antarctotetilla leptoderma, CEAB.POR.BIO.500a ANT 27112, Newmayer, Antarctic coasts, -70° 51.52‘S, 10° 36.72‘W, 236–285 m depth, 0 1 April 2011; CEAB.POR.BIO.500e ANT 27107,Newmayer, Antarctic coasts, -70° 56.05‘S, 10° 30.05‘W, 211–243 m depth, 25 March 2011 and CEAB.POR.BIO.500c ANT 27109, Newmayer, Antarctic coasts, - 70° 47.54‘S, 10° 29.56‘W, 272–288 m depth, 28 March 2011; Antarctotetilla leptoderma, CEAB. POR. BIO.500d ANT 27108, South Orkneys, Subantarctic region, - 61° 8.59‘S, 43° 58.37‘W, 346–397 m depth, 19 February 2011; Antarctotetilla leptoderma, CEAB. POR. BIO.500b ANT 27111, South Georgia, Subantarctic region, -54° 26.12‘S, -35° 41.54‘W, 265–266 m depth, 16 February 2011. GenBank accession numbers (Carella et al. 2016): CEAB.POR.BIO.500a ANT 27112 (KT124319, KT124343, KT124329 and KT124365), CEAB.POR.BIO.500e ANT 27107 (KT124351 and KT124358), CEAB.POR.BIO.500c ANT 27109 (KT124354), CEAB.POR.BIO.500d ANT 27108 (KT124323 and KT124347) andCEAB.POR.BIO.500b ANT 27111 (KT124318, KT124341, KT124328 and KT124362). Description (Fig. 4). Sub-spherical or ovoid sponges with a variable size between 4 and 8 cm in diameter (Fig. 4a). Large individuals compact; young individuals softer and more compressible. Surface conulose and corrugate, smooth to touch. Only one large oscule placed on top. Pores grouped in small depressions scattered over the entire surface (Fig. 4c), but mostly concentrated at the equatorial zone and between the grooves formed by the conical elevations. Color dirty white or brown in living specimens, greenish in alcohol. Not a real cortex but a pseudocortex (Fig. 4d–e), which consists of a loosely arranged auxiliary oxeas perpendicular to the surface. Root tufts composed of anatriaenes are used as ...