Family Sergestidae Key

Key: Family Sergestidae

Phylum Arthropoda
Subphylum Crustacea
Class Malacostraca
   Subclass Eumalacostraca
    Superorder Eucarida
     Order Decapoda
       "Natantia" (shrimp--not a formal taxonomic category)
        Suborder Dendrobranchiata

For an excellent, up to date, alternate key see Wicksten 2009 page 31

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Lower taxonomic level Main Page Alphabetic Index Systematic Index Glossary

1a With a prominent spine on the dorsal part of the carapace just behind each eye [supraorbital spine], and with a similar spine on both sides of the carapace at a slightly more posterior level [hepatic spine] [The animal is also partly transparent and has a bioluminescent organ of pesta. The tiny rostrum is acute.] Eusergestes similis

1b Without the spines described in couplet 1a [The animal is red and purple and not bioluminescent. The tiny rostrum is blunt] Sergia tenuiremis

Taxonomic Levels Represented in This Key:

Eusergestes similis
Sergia tenuiremis

Page created by Dave Cowles, 2005
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Lower taxonomic level	Main Page	Alphabetic Index	Systematic Index	Glossary

1a	With a prominent spine on the dorsal part of the carapace just behind each eye [supraorbital spine], and with a similar spine on both sides of the carapace at a slightly more posterior level [hepatic spine] [The animal is also partly transparent and has a bioluminescent organ of pesta. The tiny rostrum is acute.]	Eusergestes similis
1b	Without the spines described in couplet 1a [The animal is red and purple and not bioluminescent. The tiny rostrum is blunt]	Sergia tenuiremis