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Krøyer, 1838

Description:
Body somewhat thickset, with comparatively short and not very widely separated lateral processes. Cephalon about as long as the two following segments together, neck short and thick, frontal part of moderate breadth. Abdomen comparatively small, cylindrical and directed upwards.
Ocular tubercle very low, rounded at the tip. Proboscis nearly the length of the cephalon. Chelifores well developed, the hand as long as the scape, expanded towards the tip; fingers shorter than the palm. Palps robust, 3rd segment somewhat shorter than the 2nd, last segment somewhat larger than the penultimate one, and slender.
Ovigerous legs with ten segments present in both sexes; in male of moderate length, terminal part longer than the 5th segment, marginal spines with about seven teeth on either side.
Ambulatory legs about three times longer than the body, and beset with scattered, soft setae; tarsus shorter than propodus; propodus with six spines on the inner edge; terminal claw more than half as long as the propodus, auxiliary claws well developed.
Length of the body up to 3 mm; the extent between the points of the ambulatory legs reaching 20 mm.

Distribution:
A northern species.

Nymphon brevitarse