Dichotomous Key/Petromyzonidae

Dichotomous Key: Petromyzonidae
Kingdom: Animalia
Phylum: Animalia
Subphylum: Chordata
Class: Petromyzonidae
Information related to Petromyzonidae
Wikipedia
Wikispecies
Wikicommons
Parent key: Chordata
Subphyla
Vertebrata
Key: Petromyzonidae
Vertebrata
Clerck, 1757
Glossary for this page
(all links are to Wikipedia articles)
Dorsal fin:
Caudal fin:
Chordata keys
Subphyla
Myxini | Urochordata
Classes
Actinistia | Actinopterygii | Amphibia | Aves | Chondrichthyes | Dipnoi | Mammalia | Petromyzontida | Reptilia

This is a Dichotomous Key for the Family Petromyzonidae.

1

  • Dorsal and caudal fin distinction
    • The dorsal and caudal fins are distinct - Dichotomous Key:Petromyzon
    • The dorsal and caudal fins are not distinct - #2

2

  • Depth of dorsal fin notch
    • Shallow - Dichotomous Key:Ichthyomyzon
    • Deep - Dichotomous Key:Lampetra
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