PSEUDOCOELOMATES PHYLUM NEMATODA PHYLUM ROTIFERA.

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Presentation transcript:

PSEUDOCOELOMATES PHYLUM NEMATODA PHYLUM ROTIFERA

PHYLUM NEMATODA

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

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.

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

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

PHYLUM ROTIFERA

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]