Stelligeridae Von Lendenfeld 1898

Main Authors: Sim-Smith, Carina, Hickman, Cleveland, Kelly, Michelle
Format: info publication-taxonomictreatment
Terbitan: , 2021
Subjects:
Online Access: https://zenodo.org/record/5162288
Daftar Isi:
  • Family Stelligeridae Von Lendenfeld, 1898 Genus Higginsia Higgin, 1877 Diagnosis. Growth forms erect, lamellate, massive, vasiform or lobate; surface conulose, papillose, often silt covered or membraneous. Choanosomal skeleton predominantly with an elaborate system of bundles of megascleres, although skeletal structure ranges from halichondroid with a partially compressed, reticulate axis, and an irregularly plumo-reticulate extra-axial region (Higginsia), a compressed axis and a radial, non-plumose extra-axial region (Dendropsis), to a lax plumose or plumo-reticulate structure, without axial compression or regional differentiation of the skeleton (Desmoxya); spongin fibres usually poorly developed although heavy collagen forms the mesohyl, usually with numerous megascleres and microscleres scattered between main skeletal tracts; all skeletal tracts cored by robust oxeas and/or styles, or sometimes modified further to strongylote megascleres with bifurcated points. Ectosome with a protruding extra-axial skeleton composed of longer oxeas and/or styles of 1–3 sizes. Microscleres spined, centrangulate curved or straight microxeas, and sometimes also raphides occurring singly or in bundles (trichodragmata) (from Hooper 2002a).
  • Published as part of Sim-Smith, Carina, Hickman, Cleveland & Kelly, Michelle, 2021, New shallow-water sponges (Porifera) from the Galápagos Islands, pp. 1-71 in Zootaxa 5012 (1) on page 32, DOI: 10.11646/zootaxa.5012.1.1, http://zenodo.org/record/5158062