Identification of Ascaris lumbricoides /CC-6 (B.SC.ZOOLOGY_MAJOR_CCF)

 Identifying features are:

1. Elongated, cylindrical, narrow body, bilaterally symmetrical. Pale yellowish brown in colour.
2. Unsegmented body. Body surface is marked by single dorsal, ventral midlines & two lateral lines.
3. Mouth is terminal, guarded by three lips.
4. Tail is curved & pointed (in male) or straight (in female).
5. Anal opening is transverse near posterior end.
6. In male , two penial setae are projecting out from cloaca.
7. In female, a ventral genital pore or gonopore is present near the 1/3 distance from anterior end.
8. On the anteroventral line, excretory pore is present.

                Hence, the specimen seems to be Ascaris lumbricoides

Systematic Position (Ruppert & Barnes, 1994)

Kingdom :Animalia

  Phylum: Nematoda

    Class: Phasmida

         Genus: Ascaris