Species of flatworm
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Imbira flavonigra is a species of land planarian belonging to the subfamily Geoplaninae. It is known from specimens found in Brazil.
Description.
"Imbira flavonigra" is a flatworm that can reach up to 135 mm in length when crawling. The body is slender and flat with parallel margins, a rounded front tip, and a pointed back tip. It can be distinguished by its coloring; the dorsal side of the species has a yellow band running down the middle, flanked on either side by black bands. The base ground color of the dorsal side is grayish. The ventral side is a pale yellow color. The species' small eyes are arranged along the body margins.
It can additionally be distinguished from other members of "Imbira" via its internal anatomy; "I. flavonigra" has a short esophagus, a bell-shaped pharynx, and a long, fork-shaped, sinuous, tubular prostatic vesicle.
Etymology.
The specific epithet is derived from the Latin words "flavus" (yellow) and "niger" (black), in reference to the species' dorsal color.
Description.
"Imbira flavonigra" is only known from its type locality, within the municipality of Maquiné in Rio Grande do Sul, Brazil.
References.
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