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  1. By: Burton, Maurice, - British Museum (Natural History). Department of Zoology.
    Publication info: London : Printed by order of the trustees of the British Museum (Natural History), 1963.
    Holding Institution: Natural History Museum Library, London
    Subjects: Calcarea  Classification  Sponges  
  1. By: Soest, R. W. M. van - Hoeksema, Bert W. - Reimer, James - Voogd, Nicole de
    Type: Article
    In: ZooKeys
    Volume: 546
    Date: 2015
    Page Range: 1-20
    Publication Info: Pensoft Publishers 2015
    Subjects: apopylar spicules  Calcarea  Grantiidae  Japan  Leucosolenida  Porifera