Triloculina elongotricarinata

Description:

Test triloculine, with three visible chambers in the adult, more than two times longer than broad; chambers triangular in cross section with isometric, slightly convex sides; acute margins; wall smooth and polished; aperture high-arch shaped, provided with a long thin tooth somewhat thickened or bifid at the tip. This species differs from T. tricarinata by its strait chambers and by its much more elongated test.