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Specimens Needed


Annelida / Clitellata: Hirudo medicinalis (Medicinal Leech) pres

Leech preserved specimen. Sold in individually. If you require six or more of this specimen, a price reduction of 30% will be applied once we have processed the order internally.

Kingdom: Animalia / Subkingdom: Bilateria / Infrakingdom: Protostomia / Superphylum: Lophozoa / Phylum Annelida / Class Clitellata / Subclass Hirudinea (Lamarck, 1818) / Infraclass: Euhirudinea Lukin, 1956 / Order: Arhynchobdellida Blanchard, 1894 / Family: Hirudinidae Whitman, 1886 / Subfamily: Hirudinariinae Whitman, 1886 / Genus: Hirudo Linnaeus, 1758 / Species: Hirudo medicinalis Linnaeus, 1758 .

Hirudinea have, in common with earthworms. a clitellum. It is a thickened glandular section of the body wall that secretes a a viscid sac in which the eggs and sperm are deposited. Both are are hermaphrodites supplying in turn both sperm and eggs, but always in conjugation with another of its species.

Most leeches live in freshwater. These medicinal leeches have two suckers located at the either of the annelid. Morphologically, the gut of leeches is 'one way', with a terminal anus. They primarily are fluid feeders. Specifically, leeches are, for the most part, hematophagous, that is they live by sucking blood from other animals. The use of Hirudo medicinalis to remove blood from patiens can be traced to ancient times. They are used currently as an aid in the reattachment of body parts, and in plastic and reconstructive surgery.

Forensics Lab Supply Number 9610110.

"The Hirudiniformes are one of the currently-accepted suborders of the proboscisless leeches. Their most well-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. The Arhynchobdellida were formerly divided into two groups, denoted by presence or absence of toothed jaws. But this does not represent a natural division, as has now been determined - the most primitive proboscisless leeches are not found among the jawed blood-sucking forms as was generally believed, but among the jawless predators. "Jawed leeches" - termed "Gnathobdellae" or "Gnathobdellida" - are exclusively found among the Hirudiniformes, but the order contains a number of jawless families as well. The jawed, toothed forms make up the aquatic Hirudidae and the terrestrial Haemadipsidae and Xerobdellidae. These might actually form a clade, which would then be placed at superfamily rank, but it seems that the Hirudidae might rather be close relatives of the carnivorous Haemopidae instead." - Source:

Generally, our specimens are mailed to the customer in plastic bags with a small amount of holding solution. I would recommend that you accumulate some glass jars for displaying the annelids. Jam and jelly jars will do. Buy enough rubbing alcohol (isopropyl alcohol 70%) to cover the specimen in the jars. I often use jars with snap lids that I buy cheaply at yard sales. I have discovered recently that IKEA carries jars like that, but with silicone ring gaskets to seal the jar and lid. The other kind have a rubber gasket made by Ball and commonly available from stores carrying canning supplies. You might consider putting two or more different annelids in each jar to make comparison easier.


Preserved Biological Specimens.

Preserved specimens for sale.

HTS = 0511.91.00

This product was added to our catalog on Monday 15 March, 2010.
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