The preserved sponge specimens will be on display, but may differ from the ones directly mentioned in the lab handout. View the preserved tapeworm and the slides of the tapeworm scolex (head) and prog...The preserved sponge specimens will be on display, but may differ from the ones directly mentioned in the lab handout. View the preserved tapeworm and the slides of the tapeworm scolex (head) and proglottids (reproductive bodies). The preserved annelida specimens will be on display, but may differ from the ones directly mentioned in the lab handout. The phyla we viewed today were the porifera, the cnidaria, the nematoda and the arthropoda.