"'Nurse' of Doliolum mulleri. I., Inhalant, E., exhalant aperture; C., ciliated band round pharynx (P.);…
"Sexual individual of Doliolum mulleri. G., gonads; B., gill-slits; I., Inhalant, E., exhalant aperture;…
Ascidia Podunculata (Milne-Edwards) "The Tunicata would not probably by taken for animals at first sight.…