Addressing this book eleven Division of animals invertebrates as a brief summary for each division on ethnic characteristics and the underlying classification together with the simple introduction to the range each included study of the status of each classification of animal and where he was living and how to form and immediate ways. The authors keen that all pictures and drawings that contained this book reflect the reality as it is located in slides or samples to be tested students this decision; with a view to facilitate student at the same time enable knowledge of the fundamentals of science.