Macandrewia is a genus of sea sponges, and is the only genus in the monotypic family Macandrewiidae.
Description Species are cup-shaped, expanded, more or less sinuate or lobed. They are attached to the substrate by a more solid base. They are covered by a fleshy layer. It is supported by a siliceous cup-shaped axis. The upper surface is covered in of pores, which are grouped into roses which are surrounded by radiating grooves. The lower surface is non-porous.Gray, J.E. (1859). Description of MacAndrewia and Myliusia, two new forms of Sponges. Proceedings of the Zoological Society of London. 27: 437-440
Species The following species are recognised:
Macandrewia auris Lendenfeld, 1907 Macandrewia azorica Gray, 1859 Macandrewia clavatella (Schmidt, 1870) Macandrewia minima Carvalho & Xavier, 2020 Macandrewia ramosa Topsent, 1904 Macandrewia rigida Lévi & Lévi, 1989 Macandrewia robusta Topsent, 1904 Macandrewia schusterae Carvalho & Xavier, 2020 Macandrewia spinifoliata Lévi & Lévi, 1983
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