Agelas gracilis. a ramose slim dry specimen b–c spicular complement of verticillate acanthostyles of different dimensional categories (a–b modified from Lévi and Lévi 1983c modified from Whitelegge 1897).

  Part of: Manconi R, Pronzato R, Perino E (2016) A new species of Agelas from the Zanzibar Archipelago, western Indian Ocean (Porifera, Demospongiae). ZooKeys 553: 1-31.