Halichondriidae Gray, 1867 from the Northeastern Brazil with description of a new species Author Santos, George Garcia Author Nascimento, Elielton Author Pinheiro, Ulisses text Zootaxa 2018 2018-02-16 4379 4 556 566 journal article 30122 10.11646/zootaxa.4379.4.7 84971505-988e-4047-adaa-3673ed0e99df 1175-5326 1175098 14EF086C-557D-46D1-9907-43F11C105840 Genus Amorphinopsis Carter, 1887 For synonyms see Erpenbeck & van Soest (2002). Definition . Halichondriidae with ectosomal tangential skeleton of intercrossing megascleres single or in tracts. Spicules differentiated into oxeas and/or styles and derived forms, smaller oxeas and small styles concentrated at the surface. Confusing choanosomal skeleton with high spicular density and little or no spongin (Erpenbeck & van Soest 2002; Alvarez & Hooper 2011 ). Type species. Amorphinopsis excavans Carter, 1887 (by monotypy).