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Scientific Name: Pandorina cylindricum M.O.P.Iyengar, 1981
Photo: Håkan Kvarnström (flickr)
Classification:
Kingdom: Plantae
Phylum: Chlorophyta
Class: Chlorophyceae
Order: Chlamydomonadales
Family: Volvocaceae
Description:
The cells exhibit an ovoid shape or are slightly narrowed at one end, giving them a keystone- or pear-shaped appearance. They form colonies arranged in a sack-like globular structure surrounded by mucilage. Each cell is equipped with two flagella, two contractile vacuoles, and an eyespot. The chloroplast in each cell is large and cup-shaped, containing at least one pyrenoid. Asexual reproduction takes place through the simultaneous division of all cells, while sexual reproduction involves the division of each cell into 16-32 zoogametes.
Habitat & Distribution in Bangladesh:
This species is widely distributed in freshwater environments across the globe.
Environment:
Freshwater
Main References:
Rahman AKA, Kabir SMH, Ahmad M, Ahmed ATA, Ahmed ZU, Begum ZNT, Hassan MA, Khondoker M (2009) Encyclopedia of flora and fauna of Bangladesh, Vol. 24. Marine Fishes. Asiatic Society of Bangladesh, Dhaka, Bangladesh, 485 p.