Diagnosis

English

eng

Poecilosclerida with terminally spined ectosomal monactinal megascleres (occasionally modified to quasidiactinal forms); choanosomal megascleres diverse, consisting of at least two categories localized to distinct regions within the skeleton, or sometimes up to five categories including spicules echinating fibres in many taxa; isochelae of palmate origin, with diverse forms of toxas but lacking sigmas.

Hooper, J.N.A. (2002). Suborder Microcionina Hajdu, Van Soest & Hooper, 1994. Pp. 409-411. <i>In:</i> Hooper, J.N.A. & Van Soest, R.W.M. (Eds.) (2002) <i>Systema Porifera. Guide to the classification of sponges</i> (2 Volumes) Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow. 1708 + xvliii. ISBN 0-306-47260-0 (printed version).