Body remarkably slender, with widely separated lateral processes. Cephalon elongated, longer than the three succeeding segments together, neck exceedingly long and slender, frontal part expanded towards the tip. Abdomen comparatively small, cylindrical and directed upwards.
Ocular tubercle obtusely rounded. Proboscis somewhat shorter than the cephalon. Chelifores relatively feeble; hand somewhat shorter than the scape, only little swollen, hairy; fingers elongate, as long as the palm, and sharply curved at the point. Palps slender, 2nd and 3rd segments equal in length, penultimate segment somewhat shorter than the ultimate one and both together longer than the third segment.
Ovigerous legs with ten segments present in both sexes; in male half the body length; 4th and 5th segments equal in length; terminal part longer than the 5th segment; marginal spines relatively small.
Ambulatory legs slender, more than five times longer than the body, and beset with short, scattered hairs; tibia 2 slender, nearly twice as long as the femur; tarsus elongate, linear; propodus half as long, inner edge with minute spines; terminal claw half the length of the propodus; auxiliary claws very small.
Colour pale red. Length of the body up to 6 mm; the extent between the points of the ambulatory legs reaching 62 mm.
Sublittoral, down to 100 m.
Greenland, Barents Sea, east coast of North America and the east coast of Britain.