Gonatopsis borealis (Sasaki, 1923)

GONATIDAE


Small Individual

Reg. No NSMT-Mo66827 Year/M/D 1985/06/04 Source Mid-water trawl, Ooyoshi-maru
Locality Western North Pacific, 200m Lat. 54-05N Long. 167-40W
LRL 3.6mm DML 152mm BW 130g

Anterior View Dorsal View Lateral View
Oblique View Outside Inside
Rostrum: middle blunt, curved
Crest:CL=2.5HL; long, narrow fold;
gently curved
Lateral wall:long parallelogram
Angle 35
LW fold: no fold
Jaw edge: sharpen inwardly, curved insertion
high, plate-like wing teeth
Shoulder: low fold; shallow, narrow groove; junction visible
Wing: WL>2RL; broad medially;
Angle 95
Remark



Large Individual
Reg. No GOBO-77 Year/M/D 1985/08/13 Source Drift net, Kannki-maru
Locality Western North Pacific Lat. 48-00.0N Long. 174-59.1 E
LRL 6.0mm DML 239mm BW 432g

Anterior View Ventral View Lateral View
Oblique View Outside Inside
Rostrum: RL=HL; middle pointed, curved
Crest: CL=2.5HL, long, narrow fold, gently curved
Lateral wall:long parallelogram;
angle 40
LW fold: no fold
Jaw edge: sharpen inwardly; curved insertion; high plate-like wing teeth
Shoulder: low fold ; shallow, narrow groove; junction visible
Wing: WL>2RL broad medially;
angle 95
Remark

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