Iredalea

Iredalea is a small genus of sea snails, marine gastropod mollusks in the family Drilliidae.

This genus was named in 1915 by Walter Oliver after Tom Iredale (1880–1972), an English-born naturalist who lived mainly in Australia.

Fossil species have been found in Pliocene strata of Italy and in Miocene strata of Indonesia; age range: 5.332 to 2.588 Ma.

Description
The narrow, solid and turreted shell has a fusiform shape. The protoconch consists of 4 whorls, with a sinusigera apex. The shell is axially sculptured by numerous slender and continuous riblets. The aperture measures about a third of the length of the shell. The short siphonal canal is wide. The anal sinus is deep and broad, separated from the body whorl by a callosity. A brown band on the periphery is a usual feature.

Species
Species within the genus Iredalea include:
 * Iredalea adenensis Morassi & Bonfitto, 2013
 * Iredalea agatho (W.H. Dall, 1918)
 * Iredalea balteata (A.A. Gould, 1860)
 * Iredalea exilis (Pease, 1868)
 * Iredalea inclinata (Sowerby III, 1893)
 * Iredalea macleayi (Brazier, 1876)
 * Iredalea pupoidea (H. Adams, 1872)
 * Iredalea pygmaea (Dunker, 1860)
 * Iredalea subtropicalis Oliver, 1915
 * Iredalea thalycra (J.C. Melvill & R. Standen, 1896)
 * Iredalea theoteles (Melvill & Standen, 1896)
 * Species brought into synonymy:
 * Iredalea acuminata (J.W. Mighels, 1848) : synonym of Pyrgocythara mighelsi (Kay, 1979)
 * Iredalea ella (Pilsbry & Lowe, 1932) : synonym of Brephodrillia ella Pilsbry & Lowe, 1932
 * Iredalea (Brephodrillia) perfecta (Pilsbry & Lowe, 1932) : synonym of Brephodrillia perfectus Pilsbry & Lowe, 1932