Cratera, Fernando Carbayo, Marta Álvarez-Presas, Cĺaudia T. Olivares, Fernando P. L. Marques, Eud Óxia M. Froehlich & Marta Riutort, 2013

Fernando Carbayo, Marta Álvarez-Presas, Cĺaudia T. Olivares, Fernando P. L. Marques, Eud Óxia M. Froehlich & Marta Riutort, 2013, Molecular phylogeny of Geoplaninae (Platyhelminthes) challenges current classification: proposal of taxonomic actions, Zoologica Scripta 42, pp. 508-528 : 521

Genus Cratera gen. n

Etymology. The name Cratera is derived from the Latin word crater. It alludes to the cavity in the penis papilla resembling the depression in the mouth of a volcano. The gender is female.

Diagnosis. Geoplaninae with medium-sized body, 30–70 in length; body broad, flattened, slightly leaf-shaped; eyes monolobulated; pharynx cylindrical to bell-shaped; prostatic vesicle extrabulbar; penis papilla protrusible, having distally a cavity continued from the ejaculatory duct; male atrium not folded, generally not separated from the female one; ascending portion of the ovovitelline ducts anterior or lateral to the female atrium and joining each other above it; genital canal dorso-anteriorly flexed, arising from the postero-dorsal or posterior region of the female atrium; female atrium funnel-shaped.

Distribution. States of Rio de Janeiro, Stao Paulo, south- east Brazil.

Type species. Geoplana pseudovaginuloides Riester, 1938

Species of Cratera .

Cratera crioula ( E. M. Froehlich, 1955b) * comb. n.

Cratera joia ( Froehlich, 1956b) comb. n.

Cratera pseudovaginuloides ( Riester, 1938) * comb. n.

Cratera sp. 1 *

Cratera sp. 4 *

Cratera sp. 5 *

Cratera tamoia ( E. M. Froehlich, 1955b) * comb. n.

Cratera yara ( E. M. Froehlich, 1955b) comb. n.