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Issue: Vol. 3395 No. 1: 23 Jul. 2012
Type: Articles
Published: 2012-07-23
DOI: 10.11646/zootaxa.3395.1.3
Page range: 33–45
Abstract views: 66
PDF downloaded: 2

New species of Latrunculia from the Agulhas shelf, South Africa, with designation of a type species for subgenus Biannulata (Demospongiae, Poecilosclerida, Latrunculiidae)

Department of Environmental Affairs, Oceans & Coasts Branch, Marine Biodiversity and Ecosystem Research, Private Bag X2, Roggebaai, 8012, Cape Town, Western Cape, South Africa Marine Research Institute (MA-RE), University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town, South Africa
Department of Environmental Affairs, Oceans & Coasts Branch, Marine Biodiversity and Ecosystem Research, Private Bag X2, Roggebaai, 8012, Cape Town, Western Cape, South Africa
National Institute of Water & Atmospheric Research Ltd, Private Bag 99940, Auckland 1149, New Zealand
Porifera Latrunculiidae Latrunculia Latrunculia (Biannulata) new species South Africa sponges taxonomy

Abstract

Three new species of Latrunculia are described from Algoa Bay, and Alphard and 45-Mile Banks, on the Agulhascontinental shelf off the southern coast of South Africa. Latrunculia gotzi sp. nov., from Alphard Banks, forms a thickraised pad with broad, low, meandering areolate porefields that are characteristically lighter in colour than the surroundingmahogany brown ectosome. Latrunculia kerwathi sp. nov., from 45-Mile Banks, forms a thin, dark greenish brownencrustation, with very small, discrete, crater-shaped porefields. Latrunculia algoaensis sp. nov., from Algoa Bay, is agreen hemisphere with relatively large, thick-lipped, circular areolate porefields. While the megascleres in these newspecies vary specifically in their dimensions, the former two species have small irregular spines on the styles. Theanisodiscorhabds of the new species also vary specifically in dimensions and degree of ornamentation, but have anundifferentiated basal whorl and manubrium, with only median and subsidiary whorls around the shaft. These are identicalin overall form to the anisodiscorhabds in several South African and New Zealand species currently recognised within thesubgenus Latrunculia (Biannulata) Samaai et al., 2006, a group of 13 species for which no type species was ever assigned. A type species is designated herein.

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