Leeches Zoology Poster

We've recently obtained a series of Scientific German Educational Charts that were originally illustrated in the 1950s and 60s.

They continue to be produced by the same printing company. This manufacturer has been internationally recognized for producing scientifically accurate educational charts since 1929.

These charts have been reissued using the original film and same methods as the first printing. They are printed without inscription for university study and aesthetic purposes with special attention paid to anatomical detail and accuracy.

They come rolled and are shipped in a sturdy mailing tube. Included with each poster is a key with accompanying text in English, German, French, and Spanish.

Leeches Key - Hirudinea

Fig. 1a - Medicinal leech, adhering by means of hind sucker. Fig. 1b - Medicinal leech, attached, showing opening of pharynx on fore sucker. Fig. 1c - Horse leech, swallowing worm. Fig. 2 - Anterior end of the medicinal leech, upper side, with the five pairs of eyes. Fig. 3 - Transverse cut through head-end, seen from below, showing cavity of body filled with marrow, muscles of pharynx, and the three maxillary plates, located in grooves of epidermis. Fig. 4 - Maxillary plate with small teeth and striated muscles. Fig. 5 - Tangential longitudinal section of body, showing circular and longitudinal muscles, ventral cavity, dorsal cavity, intestine with caecal sacs, and excretory organs (Nephridia). Fig. 6 - Transverse section through leech, shows circular and longitudinal muscles, lumen of the oesephagus with grooves of mucous membrane, and excretory organs. Note the ten pairs of pouches on the middle intestine. The dorsal vessel lies above the intestinal tube, the ventral vessel with marrow below. Excretory organs with lateral vessel on the left side of the body.