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This late Georgian Bedale Leech House in Bedale, North Yorkshire, England, is a unique example [1] of a building constructed to keep live medicinal leeches (Hirudo medicinalis) healthy prior to their sale by the local apothecary [2] to doctors and private individuals for the purpose of blood letting as a medical procedure to cure or prevent a variety of illnesses and diseases.
Leeches were often gathered by leech collectors and were eventually farmed in large numbers. A unique 19th-century "Leech House" survives in Bedale, North Yorkshire on the bank of the Bedale Beck, used to store medicinal leeches until the early 20th century. Manchester Royal Infirmary used 50,000 leeches a year in 1831. The price of leeches ...
Hirudiculture is the culture, or farming, of leeches in both natural and artificial environments. This practice drew the attention of Parisian savants and members of the French Société Zoologique d'Acclimitation in the mid-to-late 19th century as a part of a larger interest in the culture of fish and oysters. [1]
Unlike jawed leeches who use rows of teeth to puncture skin, Haementeria ghilianii uses a 10 centimetres (3.9 in) hypodermic needle-like proboscis to feed. Bites are kept open by the fibrinogenolytic (breaks up fibrinogen) enzyme hementin, which is secreted from the proboscis' lumen; secretion is neurologically controlled. Hementin dissolves ...
A jar for keeping medicinal leeches Hirudo medicinalis, a medicinal leech, attached to the skin. A leech collector, leech gatherer, or leech finder was a person occupied with procuring medicinal leeches, which were in growing demand in 19th-century Europe. Leeches were used in bloodletting but were not easy for medical practitioners to obtain ...
Back of Macrobdella decora – note the row of orange dots down the middle and the two sets of black ones on the sides.. Macrobdella decora is a medium-sized leech, growing between 5 and 8.5 cm (2.0 and 3.3 in) long, and weighing from 1.48 to 3.69 grams (0.052 to 0.130 oz).