Many corals and sponges form skeletons that support and shape their bodies. Whereas biomineralization—the formation of these ...

IN Willey's “Zoological Results,” part iv., 1900, J. J. Lister described certain small columnar coral-like organisms from 35–100 fathoms off Lifu and Funafuti as calcareous sponges. He named them ...

One autapomorphic character restricted to all Metazoa including Porifera [sponges] is the existence of transmembrane receptor tyrosine kinases (RTKs). In this study we screened for molecules from one ...

This is a vade mecum of terms for describing all aspects of sponge morphology, such as habit, surface structure, consistency, and anatomy. Definitions of microscopic features include aquiferous system ...