(Right now the "Previous" and "Next" doesn't maintain serial. We're working to getting it fixed,)

Scientific Name: Eucypris virens (Jurine, 1820)
English Name: Seed Shrimp/Prawn
Local/Bangla Name: Dana Chingri (ডানা চিংড়ি), Cypris (সাইপ্রিস)
Zooplankton : Eucypris virens

Photo: Martin Scheuch (iNaturalist)

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Ostracoda
Order: Podocopida
Family: Cyprididae
Description:
The shells of this organism are elongated, and the carapace appears subtriangular in lateral view and ovoid in dorsal view. The valves’ surfaces are covered with short hairs, and the margins lack an irregular canal system. The left valve slightly overlaps the right. The dorsal seta is normal, and the natatory setae of the antennae extend at least to the tips of the terminal claws or slightly beyond. The furcal rami are typically less than half the length of the valves, and the second segment of leg 2 bears a single seta. It has a length greater than 1.5 mm. The spines of the maxillary process are smooth. The furca is somewhat S-shaped and approximately 20 times as long as the narrowest width. In terms of coloration, the valves are dull green with two yellow spots in the region of the eye spot. Its size ranges from 1.70 mm to 2.30 mm in length and 0.90 mm to 1.00 mm in height. In terms of its life cycle, the eggs typically hatch within a few days to several months. The liberated larva is a shelled nauplius with three pairs of appendages representing the antennule, antennae, and mandibles. There are eight moults and eight different instars in the life cycle, with the adult being the ninth instar. Additional appendages and increased structural complexity develop with each successive moult and instar. For instance, the caudal rami first appear at the fourth instar, and the copulatory organ appears at the eighth instar. However, sexual maturity and copulation do not occur until the ninth and final instar.
Habitat & Distribution in Bangladesh:
Its free-living larval forms serve as zooplankton feed for the fish.
Environment:
Freshwater
Comments:
Its free-living larval forms serve as zooplankton feed for the fish.
Main References:

Ahmed ATA, Kabir SMH, Ahmad M, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M (eds.) (2008) Encyclopedia of Flora and Fauna of Bangladesh, Vol. 18. Part II. Arthropoda: Crustacea. Asiatic Society of Bangladesh, Dhaka, 226 pp

DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information