1. Abdominal glands
2. Salivary glands
3. Dermal glands
4. none
Dermal glands
1. Ecdysone
2. Juvenile Hormone
3. Salivary glands
4. none
Juvenile Hormone
1. Chiton
2. Nautilus
3. Dentalium
4. none
Chiton
1. Torsion
2. Cooling
3. Twisting
4. None
Torsion
1. Chondrichthys
2. Ostelchthys
3. Elasmobranchi
4. Dipnoi
Ostelchthys
1. Dipnoi
2. Teleostei
3. Osteichthys
4. none
Dipnoi
1. Apoda
2. Urodela
3. Anura
4. none
Urodela
1. Gymnophiana
2. urodela
3. Anura
4. none
Gymnophiana
1. optic nerve
2. Trigeminal nerve
3. Auditory
4. Abducens
Auditory
1. Fore limb
2. Hind limb
3. Scapula
4. Clavicle
Hind limb