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Genus Euplectella Owen, 1841

 

Introduction

Tabachnick et al. (2019) recorded an unidentified species of Euplectella from Perth Canyon, west of Rottnest Island, WA.

 

Distribution

States

South Australia


Extra Distribution Information

Indo-Pacific.


IBRA and IMCRA regions (map not available)

IMCRA

Timor Province (2), Northwest Shelf Transition (26), Northwest Shelf Province (27), Northwest Transition (3), Great Australian Bight Shelf Transition (32), Spencer Gulf Shelf Province (33)

Distribution References

Diagnosis

The body is tubular with numerous lateral oscula and withcolander-like sieve-plate. The sponge lophophythose attached to the substratum with anchor-like basalia. The principal choanosomal spicules (large) are chiefly stauractines usually together with hexactines or pentactines. The distal rays of such hexactines and pentactines are rough, the proximal ones in hexactines are always rudimentary. Additional choanosomal spicules are diactines, tauactines and rarely stauractines together with more rarely found other derivatives. The choanosomal spicules form longitudinal and circular skeleton beams. The sieve-plate contains hexactine derivatives various in different species. Basalia are anchor-like spicules with 4 and more teeth. Dermalia are hexactines. Atrialia are pentactines. Microscleres are floricomes and graphiocomes, sometimes hexasters and small sigmatocomes, rarely discohexasters, hemihexasters, hexactines and onychasters.

 

ID Keys

See Subfamily Euplectellinae 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 28-Feb-2012 MODIFIED
29-Mar-2018 15-Apr-2011 MODIFIED
12-Feb-2010 (import)