Amended definitions for Aplysinidae and Aplysina (Porifera, Demospongiae, Verongiida): on three new species from a remarkable population in the Gulf of California Author Gómez, Patricia Author González-Acosta, Bárbara Author Sánchez-Ortíz, Carlos Author Hoffman, Zvi Author Hernández-Guerrero, Claudia J. text Zootaxa 2018 2018-08-02 4455 2 322 342 journal article 29104 10.11646/zootaxa.4455.2.4 fe0e811b-255d-4a15-859b-aec861ff4a84 1175-5326 1457256 82EA0ECB-4E33-4E22-99C1-98364576580A Aplysina Nardo, 1834 Type species: Aplysina aerophoba Schmidt, 1862 Definition . Aplysinidae that possess fibers of only one kind, cored by thick pith, sometimes thin, with smooth and soft material, and no foreign detritus. Most members have regular anastomosing skeleton of polygonal or hexagonal meshes but an elongated pattern is also present. Alternatively, some members exhibit a reduced anastomosed skeleton restricted to the internal choanosome, or atrium wall, from which depart a number of dendritic fibers towards the periphery of the body ( Fig.1 ). In every case, dendritic fibers towards the peripheral body conforms a conulose surface. Other Aplysinidae features are also proper for the genus. Remarks. As ditto for the family diagnosis.