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Göcke, C.; Janussen, D. (2011). ANT XXIV/2 (SYSTCO) Hexactinellida (Porifera) and bathymetric traits of Antarctic glass sponges (incorporating ANDEEP-material); including an emendation of the rediscovered genus Lonchiphora. Deep Sea Research Part II: Topical Studies in Oceanography. 58: 2013–2021.
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Göcke, C.; Janussen, D.
2011
ANT XXIV/2 (SYSTCO) Hexactinellida (Porifera) and bathymetric traits of Antarctic glass sponges (incorporating ANDEEP-material); including an emendation of the rediscovered genus <i>Lonchiphora</i>.
Deep Sea Research Part II: Topical Studies in Oceanography
58: 2013–2021
Publication
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In this study, we present the hexactinellid sponges sampled in the Weddell-Sea during the ANT 24-2 SYSTCO expedition (30.10.2007 – 31.01.2008) on the RV Polarstern. All deep-sea stations sampled during this expedition showed comparably modest sponge colonization, with Hexactinellida and Demospongiae occurring in similar numbers of species and individuals. The hexactinellids sampled represent three abyssal species and six species from the deep shelf. Among the deep-sea glass sponges one species new to science was found, Lonchiphora antartica sp. nov., belonging to a poorly known genus, so far represented by only a single specimen known from the Sagami Bay, Japan. Herein we give the first detailed emended diagnosis of the genus and a description of the new species representing the genus as its first well known specimen. Ecological analysis show three clearly differentiated associations of hexactinellid sponges in the Antarctic Ocean, which replace each other with increasing depths. Sponge communities on the shelf are dominated by Rossella spp., those on the continental slope and in the lower bathyal are characterized mostly by Bathydorus cf. spinosus, and the abyssal associations by Caulophacus spp. No distinct geographical distribution pattern of the Weddell-Sea Hexactinellida could be observed, apart from those caused by their bathyal ranges.
Antarctic
Systematics, Taxonomy
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2013-01-12 18:30:12Z
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Antarctic Lower Bathyal Province for Bathydorus spinosus Schulze, 1886 
Antarctic Lower Bathyal Province for Lonchiphora antarctica Göcke & Janussen, 2011 
Antarctica East Abyssal Province for Caulophacus (Oxydiscus) weddelli Janussen, Tabachnick & Tendal, 2004 
Weddell Sea for Lonchiphora antarctica Göcke & Janussen, 2011 
Holotype SMF 10772, geounit Weddell Sea, identified as Lonchiphora antarctica Göcke & Janussen, 2011