Humbertium Explained

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.^[1]

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:^[2]

• Humbertium core (de Beauchamp, 1930)
• Humbertium depressum (Ritter-Záhony, 1905)
• Humbertium diana (Humbert, 1862)
• Humbertium dodabettae (de Beauchamp, 1930)
• Humbertium ferruginoideum (Sabussowa, 1925)
• Humbertium interruptum ^[3]
• Humbertium ithorense
• Humbertium kelleri (von Graff, 1899)
• Humbertium longicanale (Sabussowa, 1925)
• Humbertium palnisium (de Beauchamp, 1930)
• Humbertium penangense (Kawakatsu, 1986)
• Humbertium penrissenense (de Beauchamp, 1925)
• Humbertium penzigi
• Humbertium phebe (Humbert, 1862)
• Humbertium proserpina (Humbert, 1862)
• Humbertium ravenalae (von Graff, 1899)
• Humbertium subboreale (Sabussowa, 1925)
• Humbertium umbrinum (Geba, 1909)
• Humbertium voigti (von Graff, 1899)
• Humbertium woodworthi (von Graff, 1899)

Notes and References

1. Ogren . R. E. . Sluys . R. . The genus Humbertium gen. nov., a new taxon of the land planarian family Bipaliidae (Tricladida, Terricola) . Belgian Journal of Zoology . 131 . 1 . 201–204 . 2001.
2. Web site: WoRMS - World Register of Marine Species - Humbertium Ogren & Sluys, 2001. 2021-10-28. www.marinespecies.org.
3. ((Solà, E.)), ((Sluys, R.)), ((Riutort, M.)), ((Kawakatsu, M.)) . Zootaxa . Molecular phylogenetics facilitates the first historical biogeographic analysis of the hammerhead worms (Platyhelminthes: Tricladida: Bipaliinae), with the description of twelve new species and two new genera . 5335 . 1 . 1–77 . 18 August 2023 . 1175-5334 . 10.11646/zootaxa.5335.1.1.