Macandrewia

Macandrewia is a genus of sea sponges, and is the only genus in the monotypic family Macandrewiidae.

Macandrewia
Macandrewia robusta
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Order:	Tetractinellida
Family:	Macandrewiidae Schrammen, 1924
Genus:	Macandrewia Gray, 1859
Type species
Macandrewia azorica Gray, 1859
Species
See text.

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.^[1]

Species

The following species are recognised:^[2]

• 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