TY  - JOUR
AB  - Haplosclerid sponges possessing a unique asymmetric flagelliform type of sigmoid microsclere have been reported from all global oceans. This peculiar spicule, characterized by a circular or elliptical shape, with a longer and sharper curved ending at one side and a shorter and more gradually curved ending at the opposing side, is proposed to be termed ‘flagellosigma’. These sponges invariably also possess smaller normal sigmas while their skeletal structure of oxea megascleres is markedly confused. They are assigned to the large genus <i>Haliclona</i> Grant, 1841 (family Chalinidae) in a new subgenus, <i>Haliclona (Flagellia)</i> subgen. nov. The species belonging to the new subgenus are reviewed and four species new to science are described, <i>Haliclona (Flagellia) indonesiae</i> subgen. et sp. nov., <i>H. (F.) amirantensis</i> subgen. et sp. nov., <i>H. (F.) hiberniae</i> subgen. et sp. nov. and <i>H. (F.) hajdui</i> subgen. et sp. nov. One species, <i>H. (F.) hentscheli</i> nom. nov., is given a new name on account of secondary homonymy caused by its transfer to the genus <i>Haliclona</i>. One species remains unnamed because of paucity of material. Already known species, reassigned to the new subgenus are <i>H. (F.) hamata</i> subgen. et comb. nov., <i>H. (F.) flagellifera</i> subgen. et comb. nov., <i>H. (F.) porosa</i> subgen. et comb. nov., <i>H. (F.) edaphus</i> subgen. et comb. nov. and <i>H. (F.) anataria</i> subgen. et comb. nov. Additional species are likely hiding among many erroneous records of ‘<i>Gellius flagellifer</i>’ from wide ranging parts of the global oceans.
A1  - Van Soest, R.W.M.
DO  - 10.5852/ejt.2017.351
JO  - European Journal of Taxonomy
N1  - Open Access
SP  - 1
EP  - 48
C1  - 351: 1-48
TI  - <i>Flagellia</i>, a new subgenus of <i>Haliclona</i> (Porifera, Haplosclerida)
UR  - http://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/476
VL  - 351
PY  - 2017
Y2  - 2026-04-14
ER  -