All of the following are Extrinsic Laryngeal Membranes/Ligaments, EXCEPT:
Laryngeal cailages like the Thyroid cailage and Cricoid cailage are connected to each other by the Cricothyroid ligament/membrane. The cricovocal membrane connects the thyroid, cricoid and arytenoid cailages. Cricothyroid ligament/membrane is classified as an Intrinsic Laryngeal Membrane/Ligament Cricothyroid ligament/membrane connects two laryngeal cailages (thyroid cailage and cricoid cailage) with each other and hence is classified as an Intrinsic Laryngeal membrane/ligament. Ref: Otorhinolaryngology Head and Neck Surgery By Matti Aniko, Manuel Bernal, Page 465, 466; Gray's Anatomy, 38th Edition, Page 1642.
Hyoepiglottic
Cricothyroid
Cricotracheal
Thyrohyoid