Nereis, marine polychaete worm, w.m. of parapodium
Nereis, t.s. of head for general study
Nereis, t.s. of head showing brain and eye
Nereis, typical t.s. through the body for general study
Arenicola, lugworm, t.s. through the body
Sabella, a sessile marine polychaete, t.s. through the body in different levels
Magelona, marine polychaete, larva w.m.
Tubifex, a fresh water oligochaete, w.m. of adult worm
Trochophora-Larva in metamorphosis, w.m.
Hirudo medicinalis, medicinal leech, t.s. through the body for demonstrating general structures of a leech
Hirudo medicinalis, oral sucker, t.s.
Hirudo medicinalis, anterior end with ventral sucker, l.s.
Hirudo medicinalis, anterior end l.s. showing eye
Hirudo medicinalis, posterior end with large suctorial disc, l.s.
Haemopis sanguisuga, horse leech, t.s. of the body
Leech, small entire specimen stained and w.m. *
Lumbricus terrestris, earthworm, t.s. of back of the clitellum, showing intestine, nephridia, typhlosole, etc. triply stained.
Lumbricus, t.s. selected to show setae
Lumbricus, sagittal l.s. through three or more typical segments back of clitellum
Lumbricus, region of mouth, t.s.
Lumbricus, region of the cerebral ganglia, t.s.
Lumbricus, anterior end sagittal l.s. showing the cerebral and subpharyngeal ganglia
Lumbricus, frontal l.s. through ventral nerve cord