Description of Pseudocorythion
provided by BioPedia
The shell is ovoid in ventral view, tapering at both ends, slightly flattened dorso-ventrally. Aperture with a large circular collar of the same size as the maximum breadth, posteriorly the test carries a small pointed spine of variable length. In lateral view, the fan-like collar is constricted to form a ridge at the rear junction with the body (P. wailesi). Outer limit of the collar marked by a very thin organic rim. This collar can have a wavy outline. The shell is composed of small circular or oval overlapping plates which are randomly arranged. The cell almost fills the test. The spherical nucleus is surrounded by a dense granular area. Habitat: marine interstitial. Type species: P. acutum (Wailes, 1927).
