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Antillorbis

From Wikipedia, the free encyclopedia

Antillorbis
Antillorbis aeruginosus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superorder: Hygrophila
Family: Planorbidae
Subfamily: Planorbinae
Tribe: Drepanotrematini
Genus: Antillorbis
Harry & Hubendick, 1964[1]

Antillorbis is a genus of freshwater gastropods belonging to the family Planorbidae.[2] This genus is distributed throughout the tropics and subtropics of the Americas.[2]

Description

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Antillorbis species are small, between 2.5–5 mm (0.098–0.197 in) in shell width. Both species have a slight sculpture consisting of fine, spiraling lines, though this is much more common in A. aeruginosus.[3] The umbilicus is sunken, giving a concave appearance to the left and right side of the shell. The right side is less concave.[4][5] Like the genus Drepanotrema, Antillorbis species have two flagella that attach to the base of the penis sheath.[3]

Differences Between Species[3]
A. aeruginosus A. nordestense
Sculpture More prominent Less prominent
Aperture Rounder Oval-shaped
Reproductive Tract Longer Shorter
Prostate Diverticules More Fewer

Distribution

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Antillorbis species are native to the Americas. A. aeruginosus can be found in North and Central America, while A. nordestensis may be found in South America.[2]

Species

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The species in this genus are as follows:[1][2]

References

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  1. 1 2 Auffenberg, Kurt (2022). "Antillorbis H. W. Harry & Hubendick, 1964". WoRMS. World Register of Marine Species. Retrieved 28 August 2025.
  2. 1 2 3 4 "Antillorbis". Global Biodiversity Information Facility. Retrieved 2025-08-28.
  3. 1 2 3 Pointier, J. P.; Escoubeyrou, K.; Bargues, B. D.; Mas-Coma, S. (2001). "Drepanotrema Nordestense (Lucena, 1953) (Pulmonata: Planorbidae): A New Record for the Bolivian Altiplano and ITS Differentiation by Morphology and Enzymes". Journal of Molluscan Studies. 67: 7–16. doi:10.1093/mollus/67.1.7.
  4. Pilsbry, H. A.; Ferriss, J. H. (1906). "MOLLUSCA OF THE SOUTHWESTERN STATES. II". Proceedings of the Academy of Natural Sciences of Philadelphia. 58: 165. ISSN 0097-3157. LCCN 12030019. OCLC 1382862.
  5. Paraense, W. L. (1975). "ESTADO ATUAL DA SISTEMÁTICA DOS PLANORBÍDEOS BRASILEIROS". Archivos do Museu Nacional do Rio de Janeiro (in Brazilian Portuguese). 55: 124. ISSN 0365-4508. LCCN 05017782. OCLC 1307697.