Key:  Suborder Dendrobranchiata

Taken primarily from  Kozloff, 1987, 1996 p. 393 (Copyright 1987, 1996, University of Washington Press.  Used in this web page by permission of University of Washington Press)

An excellent alternate, up-to-date key can be found in Wicksten, 2009 on page 15

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Lower taxonomic level	Main Page	Alphabetic Index	Systematic Index	Glossary

1a	Pereopods 1-3 obviously chelate [and the rostrum is usually obvious]	Family Penaeidae
1b	Pereopod 1 not chelate, and pereopods 2 and 3 with small, inconspicuous chelae [rostrum usually very small or missing (photo)]	Family Sergestidae

Family Penaeidae
Family Sergestidae