The Maastrichtian sediments of northern Iraq are rich in larger benthic foraminifera. Among them, the genus

Loftusia is well-known one because of its significant palaeogeographic distribution across the Mediterranean

and Middle East. In this study, observations of abnormal test shapes, species recognition criteria and endoskeleton

characteristics of Loftusia are discussed, based on the new material from north-eastern Iraq. The following

species of Loftusia are described: Loftusia elongata Cox, L. persica Brady, Loftusia morgani Douvillé, L. anatolica

Meriç, L. matsumarui Meriç and Görmüs, L. minor B Cox, L. ketini B Meriç and L. kahtaensis Meriç,

Loftusia minor A Cox, L. oktayi Meriç and L. baykali Meriç. The predominant species are Loftusia elongata,

L. morgani and L. baykali. Skewed abnormal individuals and epidermal parts of the endoskeleton structure are

also interesting aspects to note. Quantitative data obtained for Loftusia allow us to better understand and interpret

species identification criteria, abnormal occurrences and the endoskeleton structure.