1. PSEUDOCOELOMATES
PHYLUM NEMATODA PHYLUM ROTIFERA

2. PHYLUM NEMATODA

3. Phylum Nematoda: cs through esophagus, note pseudocoel & thick cuticle [fig 5.4]

4. Notice the 2 large round structures in the female (uteri) and the thick
cuticles on both the male and female worms. [fig 5.3] B A
Phylum Nematoda: Cross-section through female (A) & male (B) nematode worm.

5. Phylum Nematoda: cross section of male, note reproductive structures, and pseudocoel [fig 5.3]

6. Phylum Nematoda: cs of female- note intestine, pseudocoel, “kiwi-shaped” ovaries, oviducts, & one of the 2 LARGE uteri [fig 5.3]

7. PHYLUM ROTIFERA

8. Phylum Rotifera: (this organism is a pseudocoelomate
Phylum Rotifera: (this organism is a pseudocoelomate!!!): note corona (for feeding, locomotion & respiration), mastax, pedal glands & spurs [fig 5.5]