|Relationship of sand and fibre in the horny sponge, Psammocinia|
Sim, C.J.; Lee, K.J. (1999). Relationship of sand and fibre in the horny sponge, Psammocinia. Mem. Queensl. Mus. 44: 551-557
In: Memoirs of the Queensland Museum. Queensland Museum: Brisbane. ISSN 0079-8835, more
Animal morphology; Biochemical composition; Endoskeleton; Marine invertebrates; Sand; Irciniidae Gray, 1867 [WoRMS]; Psammocinia Lendenfeld, 1889 [WoRMS]; Psammocinia jejuensis Sim, 1998 [WoRMS]; Psammocinia mammiformis Sim, 1998 [WoRMS]; Psammocinia mosulpia Sim, 1998 [WoRMS]; Psammocinia samyangensis Sim & Lee, 1998 [WoRMS]; Psammocinia wandoensis Sim & Lee, 1998 [WoRMS]; INW, Korea, Rep., Chejudo I.; INW, Korea, Rep., Namhaedo I.; INW, Korea, Rep., Wando I.; Marine
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Five species of the genus Psammocinia (Irciniidae) are described from Chejudo Island, Namhaedo Island and Wando Island, Korea (Psammocinia jejuensis, P. mosulpia, P. mammiformis, P. samyangensis and P. wandoensis). Psammocinia is characterised by large quantities of sand in spongin fibres, mesohyl matrix and as a thick superficial cortex. In addition to the primary and secondary branching fibres, fine filaments emerge from individual pores in the fibres. Occasionally short secondary fibres are connected to large sand grains, forming bridges between adjacent sand grains. The skeleton formed from sand grains associated with fibres provides additional support for the body of the sponge.