Moon jellyfish (also known as moon jellies) are recognizable by their translucent, dish-like bells and the four prominent horseshoe-shaped gonads visible through the bell.
Here's a more detailed description:
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Shape and Size: They are typically round and flat, resembling a plate. They usually range in size, but are commonly around 12 inches (30 cm) in diameter.
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Bell: The bell is almost entirely translucent and lacks color, giving them a ghostly appearance. It is smooth and gelatinous.
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Gonads: The most distinctive feature is the four circular or horseshoe-shaped structures (gonads) located in the center of the bell. These are their reproductive organs and are typically purple or pink, although the color can vary.
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Tentacles: They possess short, delicate tentacles around the edge of the bell. These tentacles are also translucent and difficult to see.
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Mouth: The mouth is located in the center of the underside of the bell and is surrounded by short oral arms.
In summary, moon jellyfish have a simple, elegant appearance, primarily defined by their clear, disc-like body and the four distinct colored gonads that are readily visible.
