the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [adjective] > relating to a sponge > of parts of sponge > of unspecified sponge spicule > relating to tylostyle > having a tylostyle (1)
tylostyle1886
a sponge-spicule of the form of a rod with a knob at one end (the other end being pointed); also attributive or as adj.