Arhynchobdellida

medicinal leech

species of annelid

Arhynchobdellida, the proboscisless leeches, are a monophyletic order of leeches. They are defined by the lack of the protrusible proboscis that defines their sister taxon, the Rhynchobdellida. Arhynchobdellida is a diverse order, compromising both aquatic and terrestrial, besides sanguivorous and predatory, leeches. The order is divided into two suborders, Erpobdelliformes and Hirudiniformes (sometimes also called the Pharyngobdelliformes and Gnathobdelliformes, respectively).

Hirudinidae is a family of leeches belonging to the order Arhynchobdellida.

Tyrannobdella is a monotypic genus of leech, of family Praobdellidae, found in South America in the upper reaches of the Amazon. This newly found genus of leech takes sustenance from the mucous membranes of the mammalian upper respiratory tract, and is known to feed upon humans. It has eight teeth. Tyrannobdella rex was discovered feeding upon the mucous membrane of a girl who had recently bathed in the upper Amazon in Peru.

Erpobdellidae is a family of leeches. It is one of the four families belonging to the suborder Erpobdelliformes of the proboscisless leeches order, Arhynchobdellida.

__NOTOC__

species of annelid

species of annelid

Cylicobdellidae is a family of leeches belonging to the order Arhynchobdellida from the Americas.

species of annelid

Hirudo is a genus of leeches of the family Hirudinidae. It was described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae.

species of leech

Xerobdellidae are a small family of jawed leeches in the order Arhynchobdellida. Xerobdellidae have three jaws and five pairs of eyes, the fourth and fifth being separated by one or two eyeless segments. The genera placed herein occur in Chile (Mesobdella), Europe (Xerobdella) and Diestecostoma is found in Central and northern South America. This peculiar distribution strongly suggests they are a relict Pangaean group, which had already been present by the start of the Jurassic 250 million years ago.

The Hirudiniformes are one of the currently-accepted suborders of the proboscisless leeches (Arhynchobdellida). Their best-known member is the European medical leech, Hirudo medicinalis, and indeed most of the blood-sucking "worms" as which leeches are generally perceived belong to this group. In general, though some leeches suck blood, many are predators which hunt small invertebrates.

Haemopidae is a family of leeches belonging to the order Arhynchobdellida.

Gastrostomobdellidae is a family of annelids belonging to the order Arhynchobdellida.

species of annelid

Semiscolecidae is a family of annelids belonging to the order Arhynchobdellida.

Praobdellidae is a family of hematophagous leeches which live on the mucous membranes of mammals and sometimes invertebrates. These are internal parasites that enter the body through natural orifices (usually nasal cavities and pharynx, more rarely the lower respiratory tract, anus, urethra, and vagina), and cause hirudiniases.

Haemopis is a genus of leeches belonging to the family Haemopidae. The species of this genus are found in Eurasia and Northern America.

genus of annelids

species of leech

species of annelid

species of annelid

species of annelid

Orobdella is a genus of leeches. It is the only genus in the monotypic family Orobdellidae. They are large annelids, with the largest species (Orobdella octonaria) exceeding in length, but some are much smaller: mature individuals of Orobdella koikei can measure only . They inhabit the banks of mountain streams and feed on earthworms. The majority of species are endemic to Japan; two species are known from Taiwan, one from Korea, and one from Russian Far East.

species of annelid

Macrobdella is a genus of leeches native to freshwater ecosystems of North America, especially Canada, Mexico, and the United States. The genus is commonly referred to as North American medicinal leeches.

Philobdella is a genus of Nearctic leeches belonging to the family Macrobdellidae.

Hirudobdella is a genus of annelids belonging to the family Hirudinidae.

REDIRECT Americobdella

species of annelid

species of annelid