Renata Manconi, Barbara Cadeddu, Fabio Ledda, Roberto Pronzato
Zookeys
Figure 6Spongionella gracilis. a typical regular arrangement of the very clear uncored fibres in the skeletal network b a preserved digitate specimen. Modified from Pulitzer-Finali and Pronzato (1980).
Renata Manconi, Barbara Cadeddu, Fabio Ledda, Roberto Pronzato
Zookeys
Figure 7Spongionella pulchella. a the specimen described by Topsent b choanosomal skeleton (LM) c tips of fibres at the sponge surface (LM). a) modified from Topsent (1901).