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Scientific Name: Collotheca ornata (Ehrenberg, 1830)

Synonym: Collotheca ornate  (Currently unaccepted)

English Name: Not Known
Local/Bangla Name: Not Known
Not Known - Not Known - Collotheca ornata - Type: Zooplankton

Photo: Ken Koll(GBIF)

Classification:
Kingdom: Animalia
Phylum: Rotifera
Class: Eurotatoria
Order: Collothecaceae
Family: Collothecidae
Description:
During the egg stage, newly laid amictic eggs initially display a dark color but progressively lighten as they mature. Before hatching, distinctive red eyespots become discernible, alongside a ciliated corona and mastax.The larvae of this organism have a lengthy, worm-like body with three regions: head, trunk, and foot. The head is slightly wider than the trunk. Internally, the larvae possess a ganglion, a muscular mastax with well-developed trophi, two stomach glands, and a voluminous intestine. Additionally, red eyespots are present in the head region, and the lobes or arms of the adult organism are already present, inserted within the head. Notably, an oval structure within the larva’s body gradually brightens as development proceeds, potentially serving as an energy reserve for swimming and metamorphosis until feeding commences. The foot constitutes roughly one-third of the total body length and features two conspicuous cement glands, with the terminal portion also housing small bladder-like glands.In its adult stage, this organism features five short and blunt coronal lobes arranged in a pentagonal pattern. It resides within a lengthy, slender, and variable transparent case, anchored by a short holdfast. While the coronal lobes boast long cilia, the spaces between them lack cilia.
Environment:
Brackish water
Main References:

Sadia N, Ahmed MK, Khondkar MM, Rani S, Alam MJ, Al Karim A, Khan MI (2021) Horizontal and Vertical Distribution and Abundance of Zooplankton around the Swatch-of-No-Ground of Northern Bay of Bengal. The Dhaka University Journal of Earth and Environmental Sciences, 10(2), 1-8.

DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Other Information