Article · Wikipedia archive · Last revised Jun 28, 2026

Segmentorbis

Segmentorbis is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.

Last revised
Jun 28, 2026
Read time
≈ 1 min
Length
169 w
Citations
3
Source
Segmentorbis
Drawing of apertural and umbilical view of the shell of Segmentorbis kanisaensis.
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superorder: Hygrophila
Family: Planorbidae
Genus: Segmentorbis
Mandahl-Barth, 19541
Type species
Segmentina angusta
Jickeli, 1874
Subgenera2
  • Segmentorbis (Acutorbis) Mandahl-Barth, 1954
  • Segmentorbis (Segmentorbis) Mandahl-Barth, 1954

Segmentorbis is a genus of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.

Distribution

Distribution of Segmentorbis include Africa.

Species

Species within this genus include:2

  • Segmentorbis angustus (Jickeli, 1874)
  • Segmentorbis eussoensis (Preston, 1912)
  • Segmentorbis kanisaensis (Preston, 1914)
  • Segmentorbis planodiscus (Melvill & Ponsonby, 1897)

Species no longer in synonymy:

  • Segmentorbis carringtoni Azevedo, de Medeiros, & M. C. Faro, 1961; accepted as Lentorbis carringtoni (Azevedo, de Medeiros, & M. C. Faro, 1961)
References

References

  1. Mandahl-Barth (1954). "The freshwater Mollusks of Uganda and adjacent territories". Annalen van het Koninklijk Museum van Belgisch - Congo = Annales du Musée Royal du Congo Belge. (Sér. 8) Sciences zoologiques. 32: 92.
  2. "Segmentorbis Mandahl-Barth, 1954". WoRMS. World Register of Marine Species.

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