Chordata-Pristella maxillaris 

 The organisms found in Phylum Chordata are bilaterally symmetrical.  Their body has more than two cell layers, including tissues and organs.  The body cavity a true coelom and most possesses a through gut with a non-terminal anus.  The Chordata body is monomeric with no head or jaws.  At some stage in the organisms life, they possess a hollow dorsal nerve tube, a dorsal cartilaginous rod called a notochord, gill slits in the parangeal region, and a post anal tail, which is an elongation of the body beyond the end of the digestive tract.

These organisms have a partially open circulatory system, but are without excretory organs.  They normally reproduce sexually and gonochoristic.  The Chordata feed on a variety of organic materials and all live marine environments.

Examples of organisms found in Phylum Chordata include: sea squirts, lancelets, fish, amphibians, reptiles, and mammals.

The Phylum Chordata includes the Subphylum Vertebrata

Chordata- Agkistrodon piscivorus 

  1.  Diversity of vertebrates. (2010). Retrieved from http://www.shsu.edu/~bio_mlt/Chapter3.html
  2. Ramel, G. (2010). The vertebrata. Retrieved from http://www.earthlife.net/inverts/vertebrata.html

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