Haminoea hydatis
(Linnaeus, 1758)

Family: Haminoeidae


Occasionally found on south and west coast of British Isles. More common from Atlantic coast of France to the Mediterranean.


S├Ęte, South of France, Mediterranean Sea. 2 December 2000. 6m in algae Ulva rigida and on the surrounding sand. Size: 2 cm. Photos: Jean-Pierre Bielecki

Fragile inflated shell grows to about 15mm in length and body to about 30mm. The parapodial lobes are relatively small for this genus, leaving most of the shell exposed.

Compare with Haminoea navicula.

• Alvarez, L.A., Garcia, F.J. & Villani, G. (1993) A new Mediterranean species of Haminaea Leach, 1820 (Gastropoda: Opisthobranchia: Cephalaspidea). J. Moll. Stud. 59: 339-345.
• Boulch-Bleas, D. (1983) About the diet of Haminea hydatis (Linne, 1758) (Opisthobranch, Mollusc). Haliotis, 13: 45-52.
• Talavera, P., Murillo, L. & Templado, J. (1987) The genus Haminoea Turton and Kingston, 1830 (Opisthobranchia, Bullomorpha) in the southeast of Spain with the description of a new species. Bollettino Malacologico, 23(1-4): 53-68.
• Thompson, T.E. (1976) Biology of Opisthobranch Molluscs, Vol 1. Ray Society: London.
• Thompson, T.E. (1988) Molluscs: Benthic Opisthobranchs. 356pp. Synopses of the British Fauna (New Series) No. 8. E.J.Brill & W. Backhuys: Leiden.

Authorship details
Rudman, W.B., 2001 (February 13) Haminoea hydatis (Linnaeus, 1758). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/hamihyda

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