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Scientific Name: Euchaeta concinna Dana, 1849
English Name: Not Known
Local/Bangla Name: Not Known
Not Known - Not Known - Euchaeta concinna - Type: Zooplankton

Photo: Stergios Vasilis(iNaturalist)

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Calanoida
Family: Euchaetidae
Description:
From a lateral perspective, the dorsal margin of the forehead exhibits only a slight arch. The frontal eminence is notably large and conical. The rostrum is relatively small but strongly curved backward. Looking at it dorsally, the posterolateral corners of the prosome, which is the anterior part of the body, appear angular and somewhat asymmetrical, with the left side being considerably longer. On the lateral sides, the left distal margin of the prosome extends into a lappet that points in a dorsodistal direction. Both dorsally and ventrally, the genital somite shows strong asymmetry. This is characterized by a large tooth-like projection along the right side and a noticeable notch on the left side, located at approximately 2/5 of the somite’s length from its proximal end. The large tooth-like projection on the right side extends ventrally to form the right genital flange. The posterior edge of the genital field is marked by a structure that resembles a conical process in lateral view and appears as a ridge on the right side when viewed from below. The left genital flange, in lateral view, takes on the shape of a large arc followed by a small rounded ridge and appears ear-shaped when viewed from beneath. Additionally, there is a central ridge on the genital operculum, visible in lateral view, and developed as a tooth-like process that points backward.
Environment:
Marine
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.

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