Lucicutia polaris

Lucicutia polaris Brodsky, 1950

Languages: English

Description

Diagnostic Description

Caudal rami are 16 times longer than wide in females. The endopodite of P1 two-segmented. Endopodite of P5 in females is three-segmented.

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Morphology

Female:
The back strongly arched from side view. A1 with very long and numerous aesthatascs and are longer than the body by 1.5-2 last segments. Abdomen is shorter than the cephalothorax by 1.66 times. The genital segment is somewhat shorter than the combined length of the next 3 segments. Caudal rami extremely long and thin, only slightly shorter than the abdomen, are slightly asymmetrical (the left ramus is longer).
Exopodite and endopodite of A2 almost equal in length.
Rostrum composed of 2 relatively wide, wedge-shaped filaments, which are separated from the strongly protruding base.
Endopodite of A1 2-segmented.
The inner chaeta of the exopodite of P5 non-plumose, somewhat longer than the width of the segment. The second basipodite with a curved cheata on the outer edge.

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Size

Female: 3,10-4,20 mm
Male: 3,25-4,20 mm

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Ecology and Distribution

Distribution

Arctic basin, Kamchatka coast, Japan Sea

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Habitat

Oceanic, bathy- to abyssopelagic species

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References

Brodsky, K. A. (1950).  Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR. 441. Leningrad: Publishing House of the USSR Academy of Sciences.
C., R., de F. B., J. K., & N. D. (2011).  Diversity and Geographic Distribution of Marine Planktonic Copepods.