Leech movement, composite image
Leech movement. Composite image of the underside of a leech (Glossiphonia complanata). The leech has two suckers, one underneath the head and a ventral sucker at the lower end. The leech at top has its body contracted into an arch shape with both suckers close together. Here, the longitudinal muscles of the body are contracted and the circular muscles are relaxed. The leech at centre has the hind sucker attached (right) and the head sucker released (left). The body is then extended due to the relaxed longitudinal muscles and the contracted circular muscles. The leech at bottom is fully extended with the head sucker (left) attached.
Image Copyright © Dr Keith Wheeler/Science Photo Library
Media ID 1085114
from Science Photo Library
Watermarking and Website Address do not appear on finished products
animal, annelid, annelida, biological, biology, blood feeder, blood sucker, blood sucking, circular muscles, composite, contracted, cut out, ecto parasite, extended, fauna, glossiphonia complanata, head, hirudindae, hirudinea, invertebrate, leech, leeches, longitudinal muscles, movemen t, muscle, nature, parasite, parasitic, stage, stretched, sucker, tail, wild life, worm, zoological, zoology
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