Archive | Phylum Echinodermata

Larva Found in Phylum Echinodermata

Larva Found in Phylum Echinodermata! 1. Dipleurula Larva: 1. The dipleurula form (Fig. 21.39A) is reached during development and is characterised by its bilaterally sym­metrical, egg-shaped body. 2. The ventral concave side bears the mouth and is encircled by a circumoral ciliated band. 3. The anus is disposed ventrally. 4. The digestive canal is differentiated into oesophagus, stomach and intestine. [...]

By |2016-05-27T11:31:32+00:00May 27, 2016|Phylum Echinodermata|Comments Off on Larva Found in Phylum Echinodermata
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Echinoderms: Classification, Habitat and Affinities

In this article we will discuss about Echinoderms:- 1. Taxonomic Retrospect of Echinoderms 2. Definition and Origin of Echinoderms 3. Classification 4. Phylogenetic Considerations 5. Research 6. Habit and Habitat 7. Size 8. Shape and Symmetry 9. Body Wall and Skeleton 10. Digestive System 11. Coelom 12. Haemal System or Blood Lacunar System 13. Excretory System 14. Nervous System 15. [...]

By |2016-05-27T11:31:15+00:00May 27, 2016|Phylum Echinodermata|Comments Off on Echinoderms: Classification, Habitat and Affinities
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