
Cratera nigrimarginata

Cratera nigrimarginata is a species of land planarian from Brazil.
Description.
"Cratera nigrimarginata" is a medium-sized land planarian with an elongate and flat body, with parallel margins, reaching about in length. The dorsum has a light-brownish color forming a broad band and is bordered by greyish or black margins. The venter is pale yellow.
The several eyes of "C. nigrimarginata" are distributed marginally in the first millimeters of the body and posteriorly become dorsal, occupying almost the whole dorsal surface on the anterior third of the body, becoming less numerous towards the anterior tip.
Etymology.
The specific epithet "nigrimarginata" comes from Latin "niger", black + "marginata", bordered, thus meaning "black-bordered" and refers to the black margins of the body.
Distribution.
"Cratera nigrimarginata" is known only a private reserve, the Araucaria Natural Heritage Private Reserve, in the municipality of General Carneiro, Paraná, Brazil.