Australian Biological Resources Study

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Genus Ceratopsion Strand, 1924

 

Distribution

States

New South Wales, Northern Territory, Queensland, Western Australia


Extra Distribution Information

Indo-Pacific Ocean.


IBRA and IMCRA regions (map not available)

IMCRA

Timor Transition (1), Northern Shelf Province (25), Northwest Shelf Transition (26), Northwest Shelf Province (27), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39)

Distribution References

Diagnosis

Erect, lamellate or arborescent growth forms. Surface granular and hispid. Axial and extra-axial skeletons well differentiated. Choanosomal skeleton a compressed axial reticulation of spongin fibres, deficient in collagen, cored by sinuous or straight styles, anisoxeas or strongyles. Echinating megascleres absent. Extraaxial skeleton of radially arranged subectosomal styles, anisoxeas or strongyles, including sinuous and/or straight forms, embedded in and perpendicular to axial core, projecting through surface. Specialised ectosomal skeleton present (s.s.) or absent, and where present consisting of oxeas or styles forming structures ranging from a continuous palisade on the surface to discrete bouquets of spicules grouped around the projecting extra-axial megascleres where they penetrate the surface. Structural megascleres include at least two categories of styles, anisoxeas or strongyles (one often sinuous), oxeas or anisoxeas, and thin ectosomal oxeas or styles. Microscleres usually absent or may include raphides in trichodragmata.

 

ID Keys

See Family Raspailiidae 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)