https://it.wikipedia.org/wiki/Petromyzontidae
Petromyzontidae - Wikipedia
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https://www.merriam-webster.com/dictionary/Petromyzontidae
PETROMYZONTIDAE Definition & Meaning - Merriam-Webster
The meaning of PETROMYZONTIDAE is a family of cyclostomes (order Hyperoartia) comprising elongated animals that resemble eels or hagfishes, have no barbels and...
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