Family Agelasidae Verrill, 1907

  title={Family Agelasidae Verrill, 1907},
  author={Rob W.M. van Soest},
Agelasidae Verrill (Demospongiae, Agelasida) (nomen conservandum pro Chalinopsididae and Ectyonidae) is a monotypical family with a characteristic skeleton of spongin fibres cored and echinated by verticillate styles, occasionally oxeas. The spongin fibres are unique and morphologically quite distinct among the fibres of Demospongiae, showing arched columns and transverse bundles of collagen instead of the usually arrangement of collagen bundles aligned with the axis of the fibres. The spicules… CONTINUE READING