Classification of Protozoa by Levine et al

Classification of Protozoa by Levine et al(1980)

Subkingdom :- Protozoa

Characters :-

(i) They are usually microscopic & single celled animal & the single cells performs all the vital

activities of the body.

(ii) Body may be naked or covered by pellicle or enclosed in a shell.

(iii) Main locomotory organs are pseudopodia, flagella or cilia (in sporozoa well define locomotory

organs are absent).

(iv) Nucleus single or multiple, which in sac like, oval or biconvex & contains a thick endosome.

Phylum :- Sarcomastigophora

Characters :-

(i) Locomotory organs pseudopodia or flagella.

(ii Nucleus monomorphic.

(iii)Reproduction by fission or syngamy.

Examples :- Amoeba; Trypanosoma; Euglena; Opalina; Entamoeba; Leishmania;

Phylum :- Apicomplexa

Characters :-

(i) It possess an apical complex which can be seen under electron microscope.

(ii) All are generally inter cellular parasite & lack locomotory organ.

(iii) Micropore may be present at certain stage.

Examples :- Plasmodium; Monocystis;

Phylum :- Ciliophora

Characters :-

(i) Locomotory organs are simple cilia or complex ciliated organelles.

(ii) Nucleus are of two types, one micro nucleus & other macro nucleus.

(iii) Presence of cytostome & cytopyge.

Examples :- Paramoecium; Balantidium; Nyctotherus; Tetrahymena;

Phylum :- Myxozoa

Characters :-

(i) Multicellular origin of spore.

(ii) Polar capsule one to many.

(iii) All are parasites in the blood or coelom or cells of cold blood vertebrates.

Example :- Myxozoa

Phylum :- Microspora

Characters :-

(i) Spore single celled, spore wall is without any pore.

(ii) Sporoplasm is with one or two nuclei.

(iii)Polar cap & polar tubules are always present.

Example :- Microspora;

Phylum :- Ascetospora

Characters :-

(i) Spores are generally multicellular, may be single celled.

(ii) All are parasite.

(iii) Sporoplasm may be one or two or many types.

Example :-Ascetospora;