Family CAMALLANIDAE Railliet & Henry, 1915

Family diagnosis (after Moravec 2013). Outer circle of cephalic papillae comprising four large and four rudimentary papillae; inner circle formed by six very small papillae. Buccal cavity strongly sclerotized, laterally compressed and forming two sclerotized lateral valves, or rounded. Mouth opening slit-like or rounded. Lips absent or rudimentary. Pseudolabia absent. Oesophagus divided into anterior muscular and posterior glandular sections. Spicules unequal. Gubernaculum present or absent. Vulva near mid-body. Viviparous. Parasites of cold-blooded vertebrates.