Internal Anatomy 


Reproduction:

All nudibranchs are hermaphrodite and oviparous with internal fertilization resulting from copulation. This means that they require internal structures to simultaneously carry female gametes, autosperms, and mature allosperms (“foregin” sperms). With such internal structures, the potential for self-fertilisation is very high. To avoid self-fertilisation, nudibranchs have extraordinarily complex reproductive structures to prevent self-fertilization (Beeman 1977). 

Mouth parts:

The molluscan synapomorphy, radula, is present in J. funebris. In dotted nudibranchs, the radula ribbon is broad with many rows of simple hamate, or hook-shaped, teeth (Rudman & Willan 1998).

Excretory system:

The excretory system for J. funebris culminates with an anus, which is located at the base of their gill structure.