Australian Biological Resources Study

Australian Faunal Directory

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Genus Calyx Vosmaer, 1885

 

Distribution

Extra Distribution Information

Antarctic, Subantarctic, also Mediterranean Sea and New Zealand.


Other Regions

Australian Antarctic Territory, Heard & McDonald Islands (Aust. Terr.)

Distribution References

Diagnosis

Massive, caliculate (Fig. 2A), short pedunculate, lamellar (Fig. 3A, C, Calyx arcuarius as Vagocia) or coalescent tubular growth forms, with tubular processes or fistulae may be present. Surface consists of a multilayered, compact ectosomal network, under the surface-membrane (Figs 2B, 3B), with a close-knit unispicular network containing spongin at nodes and scattered free spicules with numerous sphaerulous cells. These cells, brown pigmented or uncoloured, give to the sponge its dark or clear brown colour. Small oscules present in the internal part of the calyx (Fig. 2C), or absent. Choanosomal skeleton composed of long, disorientated, entangled spicular tracts, longitudinal in the interior of the body (Fig. 2D), and tangential to the surface in the periphery (Fig. 2B). Between the fibres there is a connecting unispicular reticulation (Figs 2D, 3D). Spongin in variable amount. Megascleres are oxeas, of two size categories, bent at the center, with conical points. Microscleres toxas (Fig. 3D, in Calyx arcuarius).

 

ID Keys

See Family Phloeodictyidae Diagnosis.

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
29-Mar-2018 15-Dec-2011 MOVED
29-Mar-2018 13-Apr-2011 MODIFIED
12-Feb-2010 (import)