![Petromyzon marinus](https://ncfishes.com/wp-content/uploads/2022/07/Petromyzon-marinus_Brian-Zimmerman-1024x576.png)
Photo Credit: Brian Zimmerman
Family | Scientific Name | Author | Year | Common Name |
Petromyzontidae | Petromyzon marinus | Linnaeus | 1758 | Sea Lamprey |
Petromyzon marinus
Unique Characters: The two dorsal fins are widely divided. Large, sharp disc teeth. Large adults strongly mottled; juveniles silvery.
![Petromyzon marinus](https://ncfishes.com/wp-content/uploads/2023/01/Sea-Lamprey-Petromyzon-marinus-ammocoete-tail-1024x691.png)
Similar Species:
Least Brook Lamprey Lampetra aepyptera. The adult Sea Lamprey is readily distinguished from the Least Brook Lamprey by a number of characters, but the ammocoetes are more difficult to differentiate. The Sea Lamprey has 66-75 trunk myomeres versus 52-59 in the Least Brook Lamprey. Additionally, there is a lot of black pigment in the tail of the Sea Lamprey ammocoete versus none in the Least Brook Lamprey ammocoete.
![Lampetra aepyptera](https://ncfishes.com/wp-content/uploads/2019/12/Lampetra-aepyptera-1024x576.png)
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