(syn. Petrochelidon Ϯ Fairy Martin P. ariel) Gr. λαγηνος lagēnos flagon, bottle; πλαστης plastēs maker < πλασσω plassō to mould; "Genus LAGENOPLASTES, Gould. The little Fairy Martin of Australia, the constructor of a singular retort-shaped nest, is the type of the present genus; in which I think must also be placed another species in my collection, which I received from India, and which precisely resembles it in form and greatly in colour. What the members of the genus Hylochelidon are to the Swallows, those of the present are to the Martins, from which they differ in their diminutive and bare tarsi, and from the American Hylochelidons in their more feeble structure and colouring. Sp. 56. LAGENOPLASTES ARIEL, Gould. FAIRY MARTIN. ... The long bottle-shaped nest is composed of mud or clay, and, like that of our Common Martin, is only worked at in the morning and evening, unless the day be wet or lowery. In the construction of the nests these birds appear to work in small companies, six or seven assisting in the formation of each nest, one remaining within and receiving the mud brought by the others in their mouths: in shape these nests are nearly round, but vary in size from four to six or seven inches in diameter; the spouts of some being eight or nine inches in length. When built on the sides of rocks or in the hollows of trees, they are placed without any regular order, in clusters of thirty or forty together, some with their spouts inclining downwards, others at right angles, &c.; they are lined with feathers and fine grasses." (Gould 1865). Var. Lagenoplastis.