单语范例（未经PONS编辑处理）
英语
- Since it is classified as a hydrozoan, it is one of many jellyfish that are also known as hydromedusae (medusa is another word for jellyfish).en.wikipedia.org
- Adults are omnivorous, eating insect eggs, small crustaceans, hydrozoan polyps, and algae, while the larvae eat only algae.en.wikipedia.org
- A hydrozoan's medusa stage (if present) is fairly small compared to other jellies; hydrozoan medusae are usually no larger than two and a half inches in diameter.www.independent.com
- Endemic prey of the mats include barnacles, small crab larvae, fish eggs, and hydrozoan colonies.en.wikipedia.org
- Most hydrozoan medusae have just four tentacles, although a number of exceptions exist.en.wikipedia.org
- Although it is superficially similar to a jellyfish, each apparent individual is actually a colony of hydrozoan polyps.en.wikipedia.org
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