Species list, Checklist of Order Sessilia (Acorn barnacles) for Penobscot County (Maine, 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 Penobscot County (Maine, USA)

Class	Maxillopoda Dahl, 1956 Maxillopods	19 24 28	Families Genera Species	Taxom
Subclass	Thecostraca Gruvel, 1905	4 5 7	Families Genera Species	Taxom
Infraclass	Cirripedia Burmeister, 1834 Barnacles	4 5 7	Families Genera Species	Taxom
Superorder	Thoracica Darwin, 1854 Barnacles	4 5 7	Families Genera Species	Taxom
Order	Sessilia Lamarck, 1818 Acorn barnacles, Sessile barnacles	3 4 6	Families Genera Species	Taxom

List of families for Penobscot County
3 Families width 6 Species

Pyrgomatidae (Gray, 1825)	Coral barnacle	1	Species	Taxom
Balanidae (Leach, 1806)		3	Species	Taxom
Archaeobalanidae Newman & Ross, 1976		2	Species	Taxom

Genera for Penobscot County
4 Genera with 6 Species

Adna Sowerby, 1823		1	Species	Taxom
Balanus Da Costa, 1758	Barnacle	3	Species	Taxom
Chirona Gray, 1767		1	Species	Taxom
Semibalanus Pilsbry, 1767		1	Species	Taxom

Species list for Penobscot County
6 Species

Adna anglica (Sowerby, 1823)	⇒ Megatrema anglicum Sowerby, 1823
Balanus balanus Linnaeus, 1758	Common barnacle
Balanus crenatus Bruguière, 1789	Mountain ninebark
Balanus tintinnabulum (Linnaeus, 1758)	⇒ Chthamalus stellatus Poli, 1791
Chirona hameri Ascanius, 1767
Semibalanus balanoides Linnaeus, 1767	Acorn barnacle

Subnodes of Sessilia with occurrences in Penobscot County

Suborder

Balanomorpha
Pilsbry, 1916
Acorn barnacles

3
4
6

Families
Genera
Species

Links, sources and further information

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