FIG. 2 in Notes on distinguishing the cocoons and the juveniles of Hirudo medicinalis and Haemopis sanguisuga (Hirudinea)

FIG. 2. Top: typical new cocoons of Haemopis sanguisuga (above) and Hirudo medicinalis (below). Bottom: older, stained, cocoons of Hirudo medicinalis (left) and Haemopis sanguisuga (right). Note the diOEerence in the texture of the cocoon wall between the two species. Scales in millimetres.