Hirudinea


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Related to Hirudinea: Nematoda

Hir·u·din·e·a

(hir'ū-din'ē-ă),
The leeches, a class of worms (phylum Annelida) with flat, segmented bodies, a sucker at the posterior end, and often a smaller sucker at the anterior end; they are predatory on invertebrate tissues, or feed on blood and tissue exudates of vertebrates.
[L. hirudo, leech]

Hirudinea

/Hir·u·din·ea/ (hir″oo-din´e-ah) a class of annelids, the leeches.

Hirudinea

Parasitology A class of segmented annelids–ie, leeches, the most well-known of which is Hirudo medicinalis, that evolved from earthworms and are found in fresh water and soil in the subtropics and tropics Genera Haemadipsa, medicinal leech, Dinobdella, Haementeria, Helobdella, Hirudinaria, Hëmopis, Limnatis, Macrobdella, Poecilobdella, Pontobdella; the leech is flat, has 2 suckers, the cranial sucker houses a mouth–the impression left by a leech bite has been fancifully likened to the Mercedes-Benz insignia; the caudal sucker is involved in crawling

Hir·u·din·e·a

(hir'ū-din'ē-ă)
The leeches, a class of worms in the phylum Annelida with flat, segmented bodies, a sucker at the posterior end, and often a smaller sucker at the anterior end; they are predatory on invertebrate tissues, or feed on blood and tissue exudates of vertebrates. The class includes parasitic forms.
[L. hirudo, leech]

Hirudinea

a class of the phylum Annelida that includes the leeches, those worms which lack chaetae or parapodia, have an apparent external segmentation much greater than the small number of internal segments and possess suckers for attachment. Most species feed on blood.
References in periodicals archive ?
HIMENOPTERA x HEMIPTERA Bellostomidae ANNELIDA Hirudinea Oligochaeta Megadrili Bratislavia unidentata x Dero Dero nivea x Dero digitata x Dero furcatus Dero multibranchiata x Nais communis Nais pseudobtusa x Pristina menoni Pristina osborni Pristina proboscidea Pristina sima Pristina synclites Limnodrilus hoffmeisteri x GASTROPODA Asolene sp.
2009) reported that relative abundances of Oligochaeta and Hirudinea were positively correlated with percent cover of didymo.
Itemes Juveniles (n = 29) %F %N %V %IRI Algas (Alg) 5 - 4,9 - Copepoda (Cop) 10 5,21 2,45 1,42 Cladocera (Cla) 20 20,31 9,31 10,99 Ostracoda (Ost) 5 2,60 2,45 0,47 Amphipoda (Amp) 5 1,04 0,98 0,19 Hirudinea (Hir) - - - - Diptera Chironomida 40 48,45 52,45 74,89 (L) (Ch) Ceratopogonidae(L) (C) 15 20,83 13,72 9,62 Tabanidae (L) (Tab) - - - - Tipulidae (L) (Tip) - - - - Trichoptera (L) (Tri) 5 0,52 3,94 0,41 Ephemeroptera (N) (Ep) - - - - Plecoptera (N) (Ple) 10 1,04 9,80 2,01 Coleoptera (L) (Col) - - - - Itemes Adultos (n = 42) %F %N %V %IRI Algas (Alg) 4,2 - 1,12 - Copepoda (Cop) 4,2 27,98 0,12 3.
The opposite was true at point C, where human impact is markedly higher and is reflected in the elevated levels of nutrients and low oxygen concentration, features that support only a few AMI taxa, such as Hirudinea (Glossiphoniidae).
IVI CIPO LPAT LVEN Nematoda + + + + Oligochaeta + + + + Narapa bonettoi + + + - Hirudinea - + - + Thiaridae - + - + Corbiculidae + + - + Mytilidae - + - - Hydracarina + + + + Cladocera + + + + Ostracoda + + + + Calanoida + + + + Cyclopoida + + + + Entomobryidae + + + + Sminthuridae - - - + Polymitarcyidae + + + + Leptohyphidae + + - + Baetidae - + - + Gomphidae + + - + Coenagronidae - + - - Hydropsychidae + + - - Polycentropodidae + + - - Hydroptilidae - + - - Dytiscidae + - - + Hydrophilidae + - - - Elmidae + + - + Ceratopogonidae + + + + Chaoboridae - - + - Chironomidae + + + + Culicidae + - - - Tabela 1.
Biodiversity and ecology of Hirudinea (Annelida) from the Natural Reserve of Isla Martin Garcia, Rio de la Plata, Argentina.
Other groups (Ceratopogonidae, Hirudinea, Hydrachnidia, Sphaeriidae, Asellus aquaticus, Sialis lutaria, Caenis sp.
Phylum Clase Orden Arthropoda Insecta Tricoptera Plecoptera Megaloptera Odonata Diptera Efemeroptera Coleoptera Hemiptera Chelicerata Acari Crustacea Decapoda Amphipoda Mollusca Gastropoda Basommatophora Platyhelminthes Turbellaria Tricladida Annelida Hirudinea Glossiphoniiformes Oligochaeta Haplotaxida Phylum Familia Genero o Especie Arthropoda Hydropsychidae Smicridea sp.
In laboratory all invertebrates were picked out of the samples under stereoscopic microscope (MBS-10) and were sorted into 10 taxa (Chironomidae, Trichoptera, Amphipoda, Hirudinea, Oligochaeta, Gastropoda, Bivalvia, Ephemeroptera, Ceratopogonidae, and others).