Acanthozoon
Acanthozoon is a genus of sea anemones in the family Actiniidae. They are characterized by their distinctive conical shape and the presence of numerous tentacles that are covered in stinging nematocysts. The genus name, “Acanthozoon,” translates to “spiny animal,” reflecting the presence of these stinging structures. These anemones are generally found in shallow water environments and are known to be opportunistic predators, capturing prey with their venomous tentacles. The genus currently includes only a single species, Acanthozoon hyalinum.
Common Names
Acanthozoon hyalinum is commonly known as the "Glass Anemone" due to its transparent and translucent body. This name also reflects the anemone's delicate and fragile nature.
Characteristics
Members of the Acanthozoon genus are characterized by the following traits:
- Conical shape: The body of Acanthozoon anemones has a distinctly conical form, tapering from a wider base to a narrow oral disc.
- Numerous tentacles: The tentacles are arranged in multiple rings around the oral disc. They are typically long and slender, covered in stinging nematocysts.
- Translucent body: The body of Acanthozoon anemones is often translucent, allowing for visibility of internal structures. This transparency contributes to their common name, "Glass Anemone."
- Small size: Acanthozoon anemones are generally small in size, with individuals rarely exceeding a few centimeters in height.
Environment
Acanthozoon anemones are found in shallow water environments, often attached to rocks, corals, or other substrates. They prefer areas with moderate wave action and clear water conditions. Their distribution is primarily limited to tropical and subtropical regions.
References
World Register of Marine Species (WoRMS)
ResearchGate: Acanthozoon hyalinum - A New Record of a Sea Anemone for the Eastern Atlantic Coast