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Family APHROCALLISTIDAE Gray, 1867

Diagnosis

Branching-tubular to funnel- or cup-shaped main body with cylindrical or flattened mitten-form radial diverticula; wall 0.6–10 mm thick; dictyonal meshes mainly triangular but occasionally rectangular where broad interdiarhysial septa occur; dermalia usually pinular hexactins but pentactins may predominate; two forms of scopules only dermal or both surfaces; atrialia as pinular hexactins or large spined diactins; large uncinates and probably spined mesohexactins always present; microscleres include regular hexactins, hexasters and hemihexasters or forms elongate in one axis, with disco-, oxy-, and onycho-tips.

 

ID Keys

(1) With atrialia as large, spined diactins ................................................................. Aphrocallistes
With atrialia as pinular hexactins (rarely pentactins) with associated scopules .........Heterochone

 

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 28-Feb-2012 MODIFIED
13-Apr-2011 ADDED