North-west of Cape Finisterre, Azores, Arctic (Laptev Sea, Lomonosov Ridge, Nansen Basin, Amundsen Basin, Makarov Basin, Canada Basin)
Bathypelagic
Female:
Posterior lateral corners of the 2nd and 3rd thoracic segments are produced into points. The genital segment is longer than the following 2 segments combined; the anterior end of the genital segment is swollen where the lateral setae emerge. Caudal rami are slightly divergent.
A1 11-segmented.
A2 biramous; endopodite 2-segmented; exopodite rudimentary, 1-segmented, with 3 setae.
Emerging from the end of the oral cone is a tube with a trumpet-like opening which is incompletely closed on the anterior side; the periphery of the tube bears slender, sac-like appendages.
Md without palpus; the slender mandible blade penetrates the cone up to its apical end in such a way that the serrated tips of both blades can be seen from the ventral side.
The inner lobe of Mx1 is larger than the outer lobe and bears 3 parallel terminal setae which are curved and divergent at their tips.
Mx2 2-segmented.
Mxp 3-segmented (segments 1 and 2 incompletely separated).
P5 very small, 2-segmented. The proximal segment is incompletely separated from the 1st segment of the abdomen, with 1 lateral seta; the distal segment carries 2 short outer and 1 fairly long terminal setae.
Female: 4,87-5,30 mm
Male: 4,60-5,05 mm
Hyalopontius typicus is een eenoogkreeftjessoort uit de familie van de Megapontiidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1909 door Sars G.O..
Bronnen, noten en/of referenties
