PHYLUM ANNELIDA



TO PREPARE: Thoroughly read over Lab 12 in your manual. Familiarize yourself with the classification of the segmented worms.


IN LAB: Carefully study the display specimens. You will need to view Nereis ( the sandworm ) under a dissecting scope. Examine the head carefully and locate the structures (all) as seen on p 189 of your lab manual. You will need to remove a parapodium from the sandworm and prepare a slide of it to view under your scope. You should dissect an earthworm. Locate and learn the major organs on p 193. Note the figures of the setae on p 195.


DEMO SPECIMENS SLIDE BOX

Amphitrite Earthworm setae

Nereis - sandworm

Tube of sandworm

Diopatra cuprea

Glycera - beak thrower

Lumbricus terrestris

Hirudo

Lugworm

Aphrodita - Sea Mouse