Diagnosis: Test small, subrhombic in outline with a threebladed pointed apical horn and short spines D, Lr and Ll.
Original description: Test small, pyramidal in the upper half, inverted conicalin the lowerhalf. Cephalis globular, imperforate, lower part coveredby ribs extending from outer layer of thorax. Apical horn long, three-bladed, gently pointed. Thorax much larger than cephalis, in&64258;ated in the middle part where it bears three short laterally-downward directed spines. Spines distally three-bladed, proximally multi-bladed with secondary blades representing prolongations of the intervening bars of the external layer of the thoracic wall. Collar stricture indistinct or slightly visible by a change in outline. Beyond the level of the three spines, thorax decreases gradually in diameter and terminates irregularly. This part of thorax approximally equal in length to the portion between top of cephalis and the level of the three spines. pores of thorax irregular in size, shape and arrangement; intervening bars of the outer layer usually forming ribs in various directions.
Original remarks: Anaticapitula omanensis di&64256;ers from A. anatiformis in having much shorter D and L spines; the conical part of thorax is also shorter and inverted.
Etymology: From its occurrence in Oman.