Humbertium

Humbertium is a genus of land planarians of the subfamily Bipaliinae (hammerhead flatworms).
Description.
Species of "Humbertium" are characterized by the presence of a well developed penis papilla in the copulatory apparatus, similar to the one in "Bipalium", but with the ovovitelloducts entering the female atrium anteriorly and not posteriorly as in "Bipalium".
Etymology.
The genus "Humbertium" is named after the Swiss naturalist Aloïs Humbert who described several species from Sri Lanka that are now classified in the genus.
Species.
The genus "Humbertium" contains the following species: