title: Planus
text: # Planus
  
  Planus is a surname of French origin. People with that name include:
  
  * Marc Planus (born 1982), French footballer
  * Pierre Planus (born 1979), French footballer
  
  Planus is a Latin adjective meaning "flat" or "plain". It is part of the binomial name of several species, and of some other combination terms.
  
  ## In biology
  
  * Agrypnus planus, a species of click beetle in the genus Agrypnus
  * Aneflus planus, a species of beetle in the family Cerambycidae
  * Argopatagus planus, a species of sea urchin of the family Macropneustidae
  * Blissus planus, a species of true bug in the genus Blissus in the family Blissidae
  * Botrylloides planus, a synonym of Botryllus planus
  * Botryllus planus, a species of colonial ascidian tunicate in the genus Botryllus in the family Styelidae
  * Brachys planus, a species of beetle in the genus Brachys in the family Buprestidae
  * Bransatoglis planus, an extinct species of dormouse
  * Brochocoleus planus, a species of beetle in the genus Brochocoleus in the family Ommatidae
  * Callionymus planus, a species of dragonet native to the shallow Pacific waters off southern Japan
  * Camponotus planus, a species of carpenter ant; see List of Camponotus species
  * Canthyporus planus, a species of beetle in the genus Canthyporus in the family Dytiscidae
  * Carabus perrini planus, a subspecies of beetle in the family Carabidae
  * Carabus planus, a synonym of Pheropsophus aequinoctialis, a ground beetle
  * Caracara planus, the crested caracara (also known as the carancho), a bird of prey in the family Falconidae
  * Catogenus planus, a species of beetle in the genus Catogenus in the family Passandridae
  * Cheliferoides planus, a species of spider in the genus Cheliferoides
  * Cleptomartus planus, a synonym of Anthracomartus hindi, an extinct species of arachnid in the genus Anthracomartus in the family Anthracomartidae
  * Coccophagus planus, a species of chalcid wasp in the genus Coccophagus
  * Copodus planus, an extinct species of cartilaginous fish; see List of prehistoric cartilaginous fish genera
  * Corax planus, an extinct species of shark in Corax (genus)
  * Craspedites planus, an extinct species of ammonoid cephalopod in the genus Craspedites
  * Dermestes planus, a species of beetle in the genus Dermestes in the family Dermestidae
  * Dicynodon planus, a synonym of Oudenodon bainii, an extinct dicynodont in the genus Oudenodon
  * Distichus planus, a species of beetle in the genus Distichus in the family Carabidae
  * Epicadus planus, a species of spider in the genus Epicadus in the family Thomisidae; see List of Thomisidae species
  * Eucastor planus, an extinct species of beaver found in the Hawthorn Group
  * Ferganosuchus planus, the type species of Ferganosuchus, an extinct genus of gavialid crocodilian
  * Gonicoelus planus, a species of beetle in the genus Gonicoelus in the family Biphyllidae
  * Grynobius planus, a species of beetle in the family Anobiidae
  * Heteroscyphus planus, a species of Marchantiophyta (liverwort)
  * Hoplobunus planus, a species of harvestman in the family Stygnopsidae
  * Hyalodiscus planus, a species of diatom in the genus Hyalodiscus
  * Hydroporus planus, a species of water beetle in the genus Hydroporus
  * Ischyodus planus, an extinct species of cartilaginous fish in the genus Ischyodus
  * Isurus planus, also known as the hook-tooth mako, an extinct mako shark that lived during the Miocene epoch
  * Larinus planus, a species of true weevil
  * Leptodius planus, a species of crab in the genus Leptodius in the family Xanthidae
  * Leptotrachelus planus, a species in the genus Leptotrachelus (beetle) in the family Carabidae
  * Lionychus planus, a species of beetle in the genus Lionychus in the family Carabidae
  * Metacyclops planus, a species of copepod crustacean in the genus Metacyclops in the family Cyclopidae
  * Microcosmus planus, a species of Microcosmus, a genus of tunicates in the family Pyuridae
  * Oesyperus planus, a species of beetle in the genus Oesyperus in the family Carabidae
  * Pachyscelus planus, a species of beetle in the genus Pachyscelus in the family Buprestidae
  * Palaeospheniscus planus, incorrect name for the extinct species of penguin Palaeospheniscus bergi
  * Pandanus planus, a synonym of Pandanus tectorius, a species of screwpine
  * Penestomus planus, a species of spider in the genus Penestomus
  * Philodromus planus, a species of philodromid crab spider in the genus Philodromus in the family Philodromidae; see List of Philodromidae species
  * Philophlaeus planus, a species of beetle in the genus Philophlaeus in the family Carabidae
  * Polydesmus planus, a species of millipede in the genus Polydesmus
  * Protorabus planus, a species of beetle in the subfamily Protorabinae in the family Carabidae
  * Psellonus planus, a species of spider in the genus Psellonus in the family Philodromidae; see List of spiders of India
  * Pseudaspidites planus, an extinct species of mollusc in the genus Pseudaspidites; see 2012 in molluscan paleontology
  * Pseudoparasitus planus, a species of mite in the genus Pseudoparasitus
  * Pseudospheniscus planus, incorrect name for the extinct species of penguin Palaeospheniscus bergi
  * Pterostichus planus, a species of ground beetle in the genus Pterostichus
  * Pyrnus planus, a species of spider in the genus Pyrnus in the family Trochanteriidae; see List of Trochanteriidae species
  * Rhipicephalus planus, a species of tick in the genus Rhipicephalus in the family Ixodidae
  * Senoculus planus, a species of spider in the genus Senoculus in the family Senoculidae
  * Sigaretornus planus, a species in the genus Tornus (gastropod)
  * Smerinthus planus, The oriental eyed hawkmoth, a moth of the family Sphingidae
  * Sphenodus planus, an extinct species of shark in the genus Sphenodus in the family Orthacodontidae
  * Styloniscus planus, a species of woodlouse in the genus Styloniscus
  * Syngonanthus planus, a species of plant in the genus Syngonanthus in the family Eriocaulaceae
  * Tornus planus, a synonym of Sigaretornus planus
  * Trachelas planus, a species of spider in the genus Trachelas in the family Trachelidae; see List of Trachelidae species
  * Trochus planus, a synonym of Bembicium nanum, a species of sea snail
  * Vetustodermis planus, a soft-bodied middle Cambrian animal, a species in the genus Vetustovermis
  * Wilcoxius planus, a species of robber fly (or, assassin fly) in the genus Wilcoxius in the family Asilidae; see List of Asilidae species: W
  
  ## Other uses
  
  * Cantus planus, Latin for plainsong (or, plainchant), a body of chants used in the liturgies of the Western Church
  * Lichen planus, a disease of the skin and/or mucous membranes that resembles lichen
  * Pes planus, a medical term for flat feet (or, fallen arches), a postural deformity in which the arches of the foot collapse
  