Renata Manconi, Barbara Cadeddu, Fabio Ledda, Roberto Pronzato
Zookeys
Figure 4Chelonaplysilla noevus. a original illustration of the type specimen encrusting with conulose surface b close-up of the sponge surface with mineral debris and smooth rounded inhalant areas (lighter in the scheme) bearing small ostia; a modified from Carter (1876) b modified from Topsent (1925).