Notogynaphallia nawei

Notogynaphallia nawei is a species of land planarian from Argentina.

Description
Notogynaphallia nawei is a small-to-medium-sized land planarian with an elongate body, reaching about 40 mm in length. The color of the dorsum is black and the dorsal eyes are perceived as a group of very small whitish dots on about the second fourth of the body. The ventral side is dark gray with a thin whitish median longitudinal line along the body.

The species lacks a glandular margin, and the prostatic vesicle is intrabulbar with two regions: a tubular proximal portion and a globose distal portion, with a narrow lumen. The female atrium is tubular distally, but wide proximally.

Etymology
The specific epithet nawei comes from the Toba word naweĨ, which means "black", and refers to the dorsal color of the species.

Distribution
Notogynaphallia nawei is found in native forests of the Formosa Province, Argentina, part of the Gran Chaco region.