| Type | Diagnosis | ||||||
| Language | English | ||||||
| ISO 639-3 | eng | ||||||
| Note | Microcionina with terminally spined ectosomal styles, rarely modified to quasidiactinal or diactinal forms; three skeletal regions defined by the presence of different forms of structural styles:(1) choanosomal (axial) skeleton (with spongin fibres enveloping principal styles echinated by acanthose or smooth styles; in two groups this is replaced by a basal or axial renieroid skeleton of smooth or acanthose styles or strongyles, with or without echinating spicules); (2) subectosomal (extra-axial or extra-fibre)skeleton (with individual or tracts of auxiliary styles ascending to the surface); and (3) ectosomal skeleton (with smaller auxiliary styles forming a surface crust tangential, paratangential or perpendicular to the surface). One or more skeletal regions may be lost or modified. Megascleres predominantly smooth styles but may be modified and/or supplemented by quasidiactinal or diactinal forms, or lost completely and replaced with detritus. Microscleres include palmate isochelae and diverse forms of toxas. | ||||||
| Source | Hooper, J.N.A. 2002. Family Microcionidae Carter, 1875. Pp. 432-468. In Hooper, J. N. A. & Van Soest, R. W. M. (ed.) Systema Porifera. Guide to the classification of sponges. 1 (Kluwer Academic/ Plenum Publishers: New York, Boston, Dordrecht, London, Moscow). | ||||||
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