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Topic: Crab louse


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In the News (Fri 1 Jun 12)

  
  crab louse, Pthirus pubis
The crab louse usually infests the hairs of the pubic and perineal regions, but may move to the armpits, beard, or mustache.
This bluish-gray discoloration of the skin is due to a poisonous saliva injected by the crab louse, similar to the melanoderma caused by the body louse (Riley and Johannsen 1938).
While feeding a crab louse grabs human hairs with at least one of its second or third legs which are adapted for this purpose.
creatures.ifas.ufl.edu /urban/crab_louse.htm   (1249 words)

  
 Crab Louse   (Site not responding. Last check: 2007-10-11)
The front legs of the crab louse, however, are more slender than the other two pairs.
Distribution -- The crab louse occurs in any area of the world inhabited by man. However, it is not as common as head and body lice.
Because the crab louse is adapted for clinging to hair, movement in the absence of hair is very difficult.
ipm.ncsu.edu /AG369/notes/crab_louse.html   (430 words)

  
 crab - definition by dict.die.net
Crab apple, a small, sour apple, of several kinds; also, the tree which bears it; as, the European crab apple (Pyrus Malus var.
Crab's eyes, or Crab's stones, masses of calcareous matter found, at certain seasons of the year, on either side of the stomach of the European crawfishes, and formerly used in medicine for absorbent and antacid purposes; the gastroliths.
To catch a crab (Naut.), a phrase used of a rower: (a) when he fails to raise his oar clear of the water; (b) when he misses the water altogether in making a stroke.
dict.die.net /crab   (422 words)

  
 Crab
horseshoe crabs are, despite superficial similarities, not crabs at all.
Although famed for their tendency to walk sideways, crabs are in fact able to walk in any direction.
The crab louse is the origin of the slang term "crabs" for an infestation of
www.edinformatics.com /culinaryarts/food_encyclopedia/crab.htm   (320 words)

  
 Crab louse - Wikipedia, the free encyclopedia
Crab lice (singular, louse), scientific name Phthirus pubis and commonly called "crabs" due to their resemblance to the crab, are one of three kinds of human lice in the large group of lice families, the others being head lice and body lice, which live in clothing.
The crab louse can live in almost any form of human hair, but is found most commonly in pubic hair, leading to its other common name of pubic louse.
There are three stages in the life of a pubic louse: the nit, the nymph, and the adult.
en.wikipedia.org /wiki/Crab_louse   (726 words)

  
 untitled
The crab louse is broadly oval, somewhat crab-shaped with large claws on the middle and hind legs, about 1/16 inch long and dirty white to pink.
This louse is a vector of several diseases, such as epidemic typhus and relapsing fever.
Crab lice are found primarily in the pubic region, but may occur in the armpits, beards and eyebrows.
cipm.ncsu.edu /ent/Southern_Region/RIPM/CHAP8/LICE/lice2.htm   (894 words)

  
 Spears & MacLeod: Medical Links: Crabs ( Pubic lice) : Pharmasave :Yarmouth, Nova Scotia : GrassRoutes
Phthirus pubis (pubic or crab louse) Pubic louse (Phthirus pubis) Rajonchocotyle sp.
Pediculosis pubis, known as crabs or crab lice, is an infestation with the crab louse (Phthirus pubis), a millimeter-sized insect that infests the pubic hair, feeds on human blood, and multiplies
Phthirus pubis: The crab louse infests the genital region.
www.spearsmacleod.com /links/c/crabs/index.htm   (1195 words)

  
 <Lice>
The human body louse has been indirectly responsible for influencing human history through its ability to transmit the causative agent of epidemic typhus.
Head louse infestations are usually indicated by the presence of eggs/nits.
Crab louse infestations are usually indicated by the presence of eggs/nits.
www.ag.auburn.edu /enpl/newschoolipm/Lice.php   (554 words)

  
 Crabs - Urologychannel
Pediculosis pubis, known as crabs or crab lice, is an infestation with the crab louse (Phthirus pubis), a millimeter-sized insect that infests the pubic hair, feeds on human blood, and multiplies rapidly.
Crab lice are transmitted commonly during sexual intercourse, when the louse moves from the pubic hair of its host to the pubic hair of the partner.
Poor hygiene is associated with the spread of crab lice.
www.urologychannel.com /std/crabs.shtml   (653 words)

  
 Pest control and silica gel products - Agropharm Ltd   (Site not responding. Last check: 2007-10-11)
The head louse is 1-2 mm in length and grayish-white with dark areas along the side of the abdomen.
This louse generally infests the pubic region, but in some instances may be found in other areas covered with coarse hairs such as armpits, beards, and eyebrows.
The crab louse is primarily transmitted by sexual contact, although in rare instances they may be acquired from loose hairs on toilet seats and in bedding.
www.agropharm.co.uk /uk/bug_view.asp?bug_id=23   (708 words)

  
 Pubic Lice (Crabs): Embarrassing pests - some facts about Crab Lice   (Site not responding. Last check: 2007-10-11)
Appearance - This insect is easily differentiated from the head louse and body louse by the strong thick claws of the mid and hind legs, while the claws of the fore legs are long and fine.
Crab lice may be (but rarely are) spread by nits on loose hairs left on bedding, towels and toilets by infested persons.
Adult crab lice are only a little over half the size of body or head lice, rarely more than 1/12" long; their last two pairs of legs terminate in hooked mitts that resemble crab claws.
www.safe2use.com /pests/lice/pubiclice.htm   (429 words)

  
 Lice & Crabs
Pubic lice (Phthirus pubis, or the crab louse) infestation is most common in adolescents and young adults.
Crab eggs (nits) attach to hair and appear as tiny white-grey specks.
Sometimes the crab louse can be seen moving within the pubic hair.
www.afraidtoask.com /STD/lice.html   (333 words)

  
 CrabLouse   (Site not responding. Last check: 2007-10-11)
Transfer of crab lice is accomplished as a result of body contact with an infected person
Crab lice are unable to survive more than a few hours when taken from their
Crab lice are smaller than head or body lice and specimens are rarely more than 1/12 inch long.
www.no-pest.com /CrabLouse.htm   (314 words)

  
 Crab Louse
Crab lice can also occur in the armpits, in beards and sometimes on eyelids and eyebrows, and indeed they have even been found among the fine hair on the heads of infants.
The female crab louse lays about 25 eggs, each firmly attached to it's own hair.
There is no doubt that crab lice are mostly transmitted from one human to another during intimate relationships.
www.the-piedpiper.co.uk /th5h.htm   (212 words)

  
 Human Lice - Penn State Entomology Department Fact Sheet
In contrast, the abdomen of the crab louse is about as wide or even slightly wider than its length, and the second and third pairs of legs are thicker than the first pair.
Crab lice are much smaller than head and body lice.
Crab lice usually are transmitted from person to person by sexual contact, however, they can be found on toilet seats and in beds, and from there, spread to people.
www.ento.psu.edu /extension/factsheets/human_lice.htm   (753 words)

  
 Human Lice
The body louse is not a common problem in Michigan.
The body louse is nearly identical in appearance to the
The crab louse is 0.8 - 1.2 mm in length and has a
web1.msue.msu.edu /msue/imp/mod02/01500559.html   (597 words)

  
 Dr. Koop - Crab louse, female
This is a photomicrograph of a female pubic louse.
The condition known as "crabs" is so named because of the resemblance of a pubic louse to a crab.
The bodies of pubic lice are shorter and rounder than those of head lice.
www.drkoop.com /ency/93/imagepages/2611.html   (264 words)

  
 nbc4i.com - Health Encyclopedia - Crab Louse, Female
This is a photomicrograph of a female pubic louse.
The condition known as "crabs" is so named because of the resemblance of a pubic louse to a crab.
The bodies of pubic lice are shorter and rounder than those of head lice.
www.nbc4i.com /encyclopedia/6868326/detail.html   (364 words)

  
 Dermatology Glossary - P: Pediculosis pubis is caused by the louse, Pthirus pubis, aptly named the crab louse
Dermatology Glossary - P: Pediculosis pubis is caused by the louse, Pthirus pubis, aptly named the crab louse
Pediculosis pubis is caused by the louse, Pthirus pubis, aptly named the crab louse because of a morphology similar to that of a crab.
Examination of hairs in the pubic area, and occasionally axilla, shows crab like lice grasping the hairs close to the skin surface.
www.skincareguide.ca /glossary/p/pediculosis_pubis.html   (188 words)

  
 Crab, crab- WordWeb dictionary definition
A stroke of the oar that either misses the water or digs too deeply
"he caught a crab and lost the race"
Part of: Brachyura, crab cocktail, genus Phthirius, genus Phthirus, Phthirius, Phthirus, suborder Brachyura
www.wordwebonline.com /en/CRAB   (103 words)

  
 Louse - definition from Biology-Online.org
to this group belong of the lice of man and other mammals; as, the head louse of man (pediculus capitis), the body louse (P. Vestimenti), and the crab louse (Phthirius pubis), and many others.
The term is also applied to various other parasites; as, the whale louse, beelouse, horse louse.
(Science: zoology) louse fly, any one of numerous species of mites which infest mammals and birds, clinging to the hair and feathers like lice.
biology-online.org /dictionary/Louse   (253 words)

  
 Resource Library: Find information on Pubic lice at MerckSource
The presence of pubic lice is heralded by moderate to severe itching in the area covered by pubic hair.
Because the crab louse requires human blood to survive, it buries its head inside a pubic hair follicle.
Their crab-like appearance is the reason that pubic lice are referred to as "the crabs."
www.mercksource.com /ppdocs/us/cns/content/adam/ency/article/000841.htm   (658 words)

  
 crab louse - OneLook Dictionary Search
We found 13 dictionaries with English definitions that include the word crab louse:
Tip: Click on the first link on a line below to go directly to a page where "crab louse" is defined.
crab louse : The American Heritage® Dictionary of the English Language [home, info]
www.onelook.com /?w=crab+louse&ls=a   (167 words)

  
 crab / Crab (HyperDic hyper-dictionary)
stone crab, Menippe mercenaria; hard-shell crab; soft-shell crab, soft-shelled crab; Dungeness crab, Cancer magister; rock crab, Cancer irroratus; Jonah crab, Cancer borealis; swimming crab; fiddler crab; pea crab; king crab, Alaska crab, Alaskan king crab, Alaska king crab, Paralithodes camtschatica; spider crab
blue crab; crab legs; soft-shell crab, soft-shelled crab; Japanese crab; Alaska king crab, Alaskan king crab, king crab, Alaska crab; Dungeness crab; stone crab
In the summer they like to go out and crab
www.hyperdic.net /dic/crab.htm   (332 words)

  
 Crab Louse or Pubic Louse
Two head lice with dime for size comparison
The Crab Louse or Pubic Louse, Phthirus pubis.
Please see our usage policy page for usage information.
www.ent.iastate.edu /imagegal/phthiraptera/phthirus-pubis.html   (33 words)

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