Species list, Checklist of Order Sessilia (Acorn barnacles) for Skagit County (Washington, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
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INSECTOIDGERENGDARK LIGHT

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Checklist for Order Sessilia Lamarck, 1818 (Acorn barnacles)
and region Skagit County (Washington, USA)

Class	Maxillopoda Dahl, 1956 Maxillopods	7 10 12	Families Genera Species	Taxom
Subclass	Thecostraca Gruvel, 1905	4 6 8	Families Genera Species	Taxom
Infraclass	Cirripedia Burmeister, 1834 Barnacles	4 6 8	Families Genera Species	Taxom
Superorder	Thoracica Darwin, 1854 Barnacles	4 6 8	Families Genera Species	Taxom
Order	Sessilia Lamarck, 1818 Acorn barnacles, Sessile barnacles	2 3 5	Families Genera Species	Taxom

List of families for Skagit County
2 Families width 5 Species

Balanidae (Leach, 1806)		3	Species	Taxom
Archaeobalanidae Newman & Ross, 1976		2	Species	Taxom

Genera for Skagit County
3 Genera with 5 Species

Balanus Da Costa, 1854	Barnacle	3	Species	Taxom
Hesperibalanus Pilsbry, 1916		1	Species	Taxom
Semibalanus Pilsbry, 1767		1	Species	Taxom

Species list for Skagit County
5 Species

Balanus balanus Linnaeus, 1758	Common barnacle
Balanus crenatus Bruguière, 1789	Mountain ninebark
Balanus improvisus (Darwin, 1854)	⇒ Amphibalanus improvisus Darwin, 1854
Hesperibalanus hesperius Pilsbry, 1916
Semibalanus balanoides Linnaeus, 1767	Acorn barnacle

Subnodes of Sessilia with occurrences in Skagit County

Suborder

Balanomorpha
Pilsbry, 1916
Acorn barnacles

2
3
5

Families
Genera
Species

Links, sources and further information

Sessilia at gbif.org
Sessilia at irmng.org
Sessilia at itis.gov
Sessilia at marinespecies.org