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Sars, 1907

Short Description:

Pseudochirella palliata is an aetideid calanoid copepod known after female (5.50-7.20 mm in length) from the North Atlantic and North Pacific, mainly abysso-bathypelagic.

Taxonomic Description:

Female. Total length 5.50-7.20 mm. Cephalothorax about 4 times longer than abdomen. Th5 posterior corners prolonged into lobes, ending with short spine, slightly asymmetrical (dorsal and lateral view). Genital segment slightly asymmetrical; lateral swelling on the right is slightly more prominent than that on the left (dorsal view); segment is widest in its second third. A1 slightly longer than cephalothorax, or reaching the end of genital segment. Re1 A2 without setae, Re2 A2 with the distal seta only. Ri1 Md with 1 seta. Ri2 Md with 9 terminal setae and 2 posterior setae. Mx1 third lobe with 4 setae and appendage. Mx2, Mxp structure typical of the genus. Re P1 3-segmented, Re1 and Re2 incompletely separated. Ri P2 2-segmented. P4 coxopodite with 13 spines.

Male unknown.

Vertical distribution:

Probably abyssopelagic species: in the Atlantic Ocean known from total haul from 3000 m (Sars, 1925) and abyssal depths: stratum 4000-5000 m from the region of Kurile-Kamchatka Trench (Markhaseva, 1996).

Geographical distribution:

The species found in North Atlantic (Sars, 1925), also found in the region of the Kurile-Kamchatka Trench (Markhaseva, 1996).

Type locality: North Atlantic: 36°17'N 28°53'W (Sars, 1925).

Material examined:

1 female from sample 124. See examined samples module.

Pseudochirella palliata