Rostrum longer than carapace, upcurved, with nine or ten (rarely eight) dorsal teeth, normally three of these behind posterior edge of orbit, although the third may be directly over the edge in juveniles; seven ventral teeth (rarely six or eight).
Carapace with strong antennal spine and small pterygostomian spine.
Stylocerite broadly rounded, shorter than eye.
Scaphocerite outer border straight, often slightly concave in juveniles; apical spine equal to or slightly exceeding lamellar portion. Third maxilliped about 0.75 x length of scaphocerite; exopod and epipod present.
Mandible with molar and incisor processes, and three-segmented palp with lateral lobe on proximal segment.
Pereiopod 1 minutely chelate. Second pereiopods asymmetrical: pereiopod 2 right: carpus of five (rarely six or seven) segments; pereiopod 2 left: carpus of 38-45 segments, although normally about 30 in juveniles. Rarely are these segmental patterns completely reversed. Pereiopods 1-4 with arthrobranchs and epipods; pereiopod 5 with reduced setobranch.
Telson with six to eight pairs of lateral spines.
Unlike several other members of the Pandalidae, D. bonnieri is dioecious.
Length up to 160 mm, usually less than 100 mm.
Pale reddish, often with bright red rostral tip.
From 20 to 1000 metres deep.
Ovigerous females from October to April.
Distribution in the North Sea:
Northern North Sea.
Ranges from Icelandic and Norwegian coasts southwards to the Bay of Biscay. Not found in Greenland waters.