A revision of Diacarnus Burtonand Negombata de Laubenfels (Demonspongiae: Latrunculiidae) with descriptions of new speciesfrom the west-central Pacific and Red Sea

Species previously assigned to the genus Latrunculia, which possess discate microrhabds as
the microsclere complement, have been re-evaluated and assigned to Diacamus Burton and
Negombata de Laubenfels, which both contain spinulate rather than discate microrhabd
microscleres. The type species of Diacamus, Axos spinipoculum Carter, is redescribed, and
seven new species are described: D. beilae, D. erythraeanus, D. levii, D. ardoukobae, D.
bismarck.ensis, D. tubifera, and D. megaspinorhabdosa, spp. nov. The type species of
Negombata, Latrunculia corticata (Carter), is redescribed and the only other known species,
Latrunculia magnifica Keller, is transferred to Negombata. Diagnostic morphological characters
which emphasize a combination of gross morphology, spicule dimensions, microsclere
morphology and disposition, are identified for Diacamus and Negombata and the affinities
of these and other latrunculiids, Latrunculia and Sigmosceptrella, are compared to each other
and to other demosponges.

Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 1090

This manuscript is an author version with the final publication
available and may be cited as: Kelly-Borges, M., & Vacelet, J. (1995). A revision of Diacarnus Burton
and Negombata de Laubenfels (Demonspongiae: Latrunculiidae) with descriptions of new species
from the west-central Pacific and Red Sea. Memoirs of the Queensland Museum, 38(2), 477-503.