Genus Ridleia Dendy, 1888

Museums

Regional Maps

• Ridleia Dendy, A. 1888. Studies on the comparative anatomy of sponges. I. On the genera Ridleia, n. gen., and Quasillina, Norman. Quarterly Journal of Microscopical Science 28(2): 513–529.

  Type species:

   Ridleia oviformis Dendy, 1888 by original designation.

Distribution

States

Queensland

IBRA and IMCRA regions

IMCRA

Central Eastern Transition (15), Northeast Shelf Province (40), Northeast Shelf Transition (41)

Diagnosis

Pedunculate egg-shaped sponge with an oscular papilla. Skeleton mainly confined to the ectosome. From outside to inside there is a palisade of ectosomal tylostyles, a layer of intermediary tylostyles and longitudinal tracts of principal tylostyles which lie on a collagenous layer. In the outermost region of the choanosome there is a tangential layer of ectosomal tylostyles. The spicules are tylostyles in three size categories. Choanocyte chambers are diplodal.

ID Keys

See Family Polymastiidae Diagnosis.

Diagnosis References

Boury-Esnault, N. 2002. Family Polymastiidae Gray, 1867. pp. 201-219 in Hooper, J.N.A. & van Soest, R.W.M. (eds). Systema Porifera: A guide to the classification of sponges. New York : Kluwer Academic/Plenum Publishers Vol. 1. [211]

History of changes