Key:  Subclass Alcyonaria (Octocorallia)

Phylum Cnidaria
 Class Anthozoa

Taken primarily from  Kozloff, 1987, 1996  (Copyright 1987, 1996, University of Washington Press.  Used in this web page by permission of University of Washington Press)
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1a  Colony encrusting, the polyps arising singly from creeping stolons Order Alcyonacea, 
Suborder Stolonifera
1b Colony a fleshy mass in which several to many polyps are embedded, or irregularly branched or featherlike 2
2a Colony a fleshy mass in which several to many polyps are embedded Order Alcyonacea, 
Suborder Alcyoniina
2b Colony irregularly branched or featherlike 3
3a Gorgonians--colony irregularly branched, attached to a hard substratum; branches with an internal core of hard material Order Alcyonacea, 
Suborders Holaxonia and Scleraxonia
3b Sea pens--colony featherlike; the lower portion swollen and anchoring the colony in mud or sand; rachis of the colony with a hard internal rod, but branches without comparable supporting structures Order Pennatulacea

Taxonomic Levels Represented in This Key:
Order Pennatulacea

Page created by Dave Cowles, 2005
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