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275:(avoiding light), when the brooding adult is ready to release its young, it may swim in open water in the middle of the day. If it finds a suitable host, it attaches itself with its sucker to the nasal passages, the respiratory tract or inside the mouth. This leech is unique in that the adult attaches to the host but does not itself feed on it; instead, the young that it was brooding transfer to the host to take their first blood meal.
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is transparent, olive green or brownish in colour, with larger individuals often exhibiting six longitudinal rows of small yellow spots. This leech is active and frequently changes shape, being up to 6 cm (2.4 in) long when extended. The posterior sucker is broad and conspicuous but the
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invades their mouths and respiratory passages. At other times, it is free-living in freshwater habitats. The adult broods its egg capsules on its under surface, where there may be as many as two hundred eggs. When the young are ready to emerge, the adult uses its
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to detect vibrations in the water and will move towards any disturbance that might be caused by a potential host. Suitable hosts are those with body temperatures of between 37 and 40 °C (99 and 104 °F). Although generally nocturnal and negatively
253:. It is uncommon in Britain, where it has a discontinuous range, probably being distributed by movements of its bird hosts. It has also been recorded in North America from a number of locations.
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This leech is found in freshwater habitats in Europe. It is common in the coastal flat parts of
Holland which are visited by the
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anterior sucker is small, and invisible when the animal is viewed from above.
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224:(blood-sucking) leech, found in freshwater habitats in Europe.
334:. Springer Science & Business Media. pp. 24–25.
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261:When parasitizing ducks and other waterfowl,
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362:Thorp, James H.; Covich, Alan P. (2001).
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368:. Academic Press. pp. 481–488.
628:Taxa named by Otto Friedrich Müller
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623:Animals described in 1774
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41:Scientific classification
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328:Mellanby, Helen (2012).
16:Species of annelid worm
400:Theromyzon tessulatum
300:Theromyzon tessulatum
205:Theromyzon tessulatum
186:Theromyzon tessulatum
25:Theromyzon tessulatum
473:Fauna Europaea (new)
168:T. tessulatum
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577:Open Tree of Life
392:Taxon identifiers
375:978-0-12-690647-9
341:978-94-009-5849-4
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218:Glossiphoniidae
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134:Rhynchobdellida
91:Pleistoannelida
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222:haematophagous
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306:. Retrieved
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241:Distribution
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194:O. F. Müller
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499:iNaturalist
273:phototactic
228:Description
612:Categories
279:References
220:. It is a
155:Theromyzon
120:Subclass:
114:Clitellata
104:Sedentaria
247:waterfowl
162:Species:
124:Hirudinea
64:Kingdom:
58:Eukaryota
517:11132645
423:BioLib:
409:Wikidata
140:Family:
78:Annelida
74:Phylum:
68:Animalia
54:Domain:
595:1509279
491:2307911
415:Q150856
308:26 June
257:Ecology
210:species
196:, 1774)
150:Genus:
130:Order:
110:Class:
582:619255
504:540672
465:196062
452:238494
439:401356
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590:WoRMS
569:27007
556:13286
530:69378
512:IRMNG
447:EUNIS
426:43987
304:. EOL
251:hosts
214:leech
208:is a
98:Clade
85:Clade
551:NCBI
525:ITIS
486:GBIF
370:ISBN
336:ISBN
310:2018
538:NBN
434:EoL
212:of
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192:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
