dcsimg

Diagnostic Description

provided by iArczoo

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

license
cc-by-3.0
compiler
Ershova, Elizaveta
partner site
iArczoo

Distribution

provided by iArczoo

Arctic basin, Kamchatka coast, Japan Sea

license
cc-by-3.0
compiler
Ershova, Elizaveta
partner site
iArczoo

Habitat

provided by iArczoo

Oceanic, bathy- to abyssopelagic species

license
cc-by-3.0
compiler
Ershova, Elizaveta
partner site
iArczoo

Morphology

provided by iArczoo

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.

license
cc-by-3.0
compiler
Ershova, Elizaveta
partner site
iArczoo

Size

provided by iArczoo

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

license
cc-by-3.0
compiler
Ershova, Elizaveta
partner site
iArczoo