from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. able to be turned inside out; able to be everted
from The Century Dictionary and Cyclopedia
- Capable of being everted, or turned inside out. Also evertile.
Sorry, no etymologies found.
The male organs consists of two testes which connect to sperm ducts that unite and lead to an eversible copulatory cirrus.
Nemertines however, lack a protective cuticle or exoskeleton as well as stalked eyes, but have a characteristic eversible proboscis.
Osmaterium - ia: fleshy, tubular, eversible processes producing a penetrating odor, capable of being projected through a slit in the prothoracic segment of certain Papilionid caterpillars, and from openings elsewhere in the bodies of other forms.
Red in, well, harpoon-like proboscis and, uh ... eversible stomach.
In case you don't know, caecilians have sensory tentacles, sometimes have protrusible eyes, sometimes lack eyes entirely, often exhibit sophisticated parental care [maternal skin-feeding is going on in the middle image above], are incredibly long-bodied yet often lack tails, sometimes possess large, anatomically complex, eversible male sexual organs, and so on and so forth.