Rare sponges from marine caves: discovery of Neophrissospongia nana nov. sp. (Demospongiae, Corallistidae) from Sardinia with an annotated checklist of Mediterranean lithistids Author Manconi, Renata urn:lsid:zoobank.org:author: ,, Italy Author Serusi, Annalisa urn:lsid:zoobank.org:author: Università di Sassari, Sassari ,, Italy text ZooKeys 2008 2008-12-17 4 4 71 87 journal article 10.3897/zookeys.4.39 bba028eb-c611-4704-9c01-4d2ea30dc3e3 1313–2970 576426 93A5F62F-9A24-4F64-9BFB-C6347AAB45B1 Genus Neophrissospongia Pisera & Lévi, 2002 Definition (emended from Pisera and Lévi, 2002 ) Cup-shaped, ear-shaped, plate-shaped growth form. Ectosomal skeleton with radially arranged dichotriaenes with tubercled to less frequent smooth cladomes and from smooth to tubercled/spiny rhabdomes. Sub-ectosomal spicules as asterose microscleres (streptaster/amphiaster) and relatively large style-like monaxons. Choanosomal skeleton as a relatively loose network of dicranoclone desmas.