Asp i do branchia (as pidobrangkia)

pl. [NL., In the Aspidochirotæ , or holothurians with disk or shield-shaped tentacles furnished with tentacular ampullæ, the left respiratory tree is bound to the body-walls, there are no retractor muscles to the pharynx, and Cuvierian organs are present. These are the highest type of Holothuroidea, and are mainly tropical in their distribution. Stand. Nat. Hist., I. 182.