Castello-Branco, C.; Hestetun, J.T.; Rapp, H.T.; Hajdu, E. (2016). Taxonomy of Cladorhiza in the deep SW Atlantic: C. nicoleae sp. nov. and redescription of C. inversa (Cladorhizidae, Poecilosclerida, Demospongiae). In: Schönberg CHL, Fromont J, Hooper JNA, Sorokin S, Zhang W, de Voogd N (eds) New Frontiers in Sponge Science. Journal of the Marine Biological Association of the United Kingdom. 96 (2): 297-303.

222788

10.1017/s0025315415000211 [view]

Castello-Branco, C.; Hestetun, J.T.; Rapp, H.T.; Hajdu, E.

2016

96 (2): 297-303

Publication

http://dx.doi.org/10.1017/S0025315415000211

Proceedings of the 9th International Sponge Conference

Available for editors  

Until now only two species of Cladorhiza have been reported from the SW Atlantic, namely C. diminuta and C. inversa, despite a total of 39 species reported from various parts of the globe. Here we describe a new species, C. nicoleae sp. nov., dredged from 750 m depth on the continental slope off SE Brazil during the French RV ‘Marion Dufresne’ expedition in 1987. It is an erect, pedunculated and club-shaped sponge, 26 mm high and with 12 radially arranged whip-like projections (each up to 3 mm long). The new species differs from its closest relative, C. inversa (redescribed here), by its possession of sigmas and sigmancistras. The holotype of Cladorhiza inversa is also a pedunculated sponge, 1.9 cm tall, with a cup-shaped body with an apical spur-like continuation of the stem and a crown of 16 projections (up to 8 mm long) radiating from the rim of the body.

South West Atlantic ( =only warm temperate; cold temperate see *SUB)

Systematics, Taxonomy

Porifera

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