Species list, Checklist of Order Sessilia (Acorn barnacles) for Orkney Islands (Northern Isles, United Kingdom)

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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Western Orkney Islands

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INSECTOIDGERENGDARK LIGHT

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Checklist for Order Sessilia Lamarck, 1818 (Acorn barnacles)
and region Orkney Islands (Northern Isles, United Kingdom)

Class	Maxillopoda Dahl, 1956 Maxillopods	10 12 17	Families Genera Species	Taxom
Subclass	Thecostraca Gruvel, 1905	5 6 8	Families Genera Species	Taxom
Infraclass	Cirripedia Burmeister, 1834 Barnacles	5 6 8	Families Genera Species	Taxom
Superorder	Thoracica Darwin, 1854 Barnacles	5 6 8	Families Genera Species	Taxom
Order	Sessilia Lamarck, 1818 Acorn barnacles, Sessile barnacles	4 5 7	Families Genera Species	Taxom

List of families for Orkney Islands
4 Families width 7 Species

Balanidae Leach, 1806	2	Species	Taxom
Archaeobalanidae Newman & Ross, 1976	2	Species	Taxom
Chthamalidae Darwin, 1854	2	Species	Taxom
Verrucidae Darwin, 1854	1	Species	Taxom

Genera for Orkney Islands
5 Genera with 7 Species

Balanus Da Costa, 1789	Barnacle	2	Species	Taxom
Chirona Gray, 1767		1	Species	Taxom
Chthamalus Ranzani, 1791		2	Species	Taxom
Semibalanus Pilsbry, 1767		1	Species	Taxom
Verruca Schumacher, 1776		1	Species	Taxom

Species list for Orkney Islands
7 Species

Balanus balanus Linnaeus, 1758	Common barnacle
Balanus crenatus Bruguière, 1789	Mountain ninebark
Chirona hameri Ascanius, 1767
Chthamalus montagui Southward, 1976	Montagu's Stellate Barnacle
Chthamalus stellatus Poli, 1791	Poli's Stellate Barnacle
Semibalanus balanoides Linnaeus, 1767	Acorn barnacle
Verruca stroemia O.F. Müller, 1776

Subnodes of Sessilia with occurrences in Orkney Islands

Suborder	Balanomorpha Pilsbry, 1916 Acorn barnacles	3 4 6	Families Genera Species	Taxom
Suborder	Verrucomorpha Pilsbry, 1916 Wart barnacles	1 1 1	Family Genus Species	Taxom

Links, sources and further information

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