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Scientific Name: Phyllodiaptomus blanci Brehm, 1950

Synonym: Diaptomus peregrinator (Currently unaccepted)

English Name: Tiny Watercritter
Local/Bangla Name: Diaptomus (ডায়াপটোমাস)
Zooplankton : Phyllodiaptomus blanci

Photo: Adam Petrusek (2014)

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Calanoida
Family: Diaptomidae
Description:
The female of this species has a broad cephalothorax that tapers anteriorly, with asymmetrical metasomal wings featuring hyaline spines, with the left wing more distinct than the right. The urosome is composed of three segments, with the genital segment being the largest. The caudal rami are symmetrical. The antennule has 25 segments. The fifth leg is symmetrical and well developed, with the second exopod segment of the right leg forming a claw, with fine hairs on the inner margin, and the third exopod segment much reduced with two very small setae and a long inner seta. In the male, the body is slender with a posteriorly broad cephalothorax tapering slightly anteriorly. The metasomal wings are asymmetrical, with the left wing more pronounced, featuring hyaline spines. The urosome has five segments, with the second being the largest and the fifth the smallest. The caudal rami are symmetrical. The right antennule is 25 segmented and greatly modified, with the 18th and 19th segments strongly specialized. The fifth leg is asymmetrical, with the right leg longer than the left, and the third exopod segment of the right leg forming a slightly curved claw, with fine serrations present on three-fourths of the inner margin of the claw. The endopod is large and thick, extending into the middle of the second exopod. The lengths are between 1.42-1.65 mm for males and 1.60-1.70 mm for females (Khan, 2003). The life cycle primarily consists of two stages: nauplius and copepodids. Before molting to adulthood, the organism undergoes six different naupliar and five copepodid stages. Remarkable changes occur at the molt of the copepodid, closely related to the adult, with external segmentations lacking in newly hatched nauplius larvae.
Habitat & Distribution in Bangladesh:
Commonly found in rivers in Bangladesh, such as the Halda River.
Environment:
Freshwater
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