Abstract
Crellidae Dendy (Demospongiae, Poecilosclerida) are characterized by a tangential ectosomal crust made up of acanthostyles or acanthoxeas. Prior to the present revision, Crellidae were a substantial group with 22 nominal genera. However, structural diversity appeared to be low which is reflected in only five genera and four subgenera considered valid. The crellid choaonosomal skeleton is hymedesmioid or plumose, with choanosomal megascleres consisting of peripheral tornotes and basal acanthostyles. The latter may be absent. Echinating acanthostyles are present in several species. Microscleres are commonplace arcuate isochelae (one species excepted) and sigmas, either of which may be absent. The surface of most species features prominent areolated porefields, shared with the sisterfamily Hymedesmiidae.
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© 2002 Kluwer Academic / Plenum Publishers, New York
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Van Soest, R.W.M. (2002). Family Crellidae Dendy, 1922. In: Hooper, J.N.A., Van Soest, R.W.M., Willenz, P. (eds) Systema Porifera. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-0747-5_59
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DOI: https://doi.org/10.1007/978-1-4615-0747-5_59
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-306-47260-2
Online ISBN: 978-1-4615-0747-5
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