Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Distribution map
Links to other Web sites

(Bate and Westwood, 1862)

Description:
Pereion and pleon segments with a low dorsal keel; pereion segment 7 and pleon segments 1 to 3 each with a tooth on the posterior margin. Coxal plates 1 and 2 narrow, tapering slightly, setose; plates 3 and 4 broad. Epimeral plates 1 to 3 distal angle with a minute tooth, posterior margin convex with several small setules. Head with a short slender rostrum, lateral lobe sinuous with the upper angle produced; eyes moderately large in female, very large in male. Female antenna 1 one-third of the body length, reaching to the mid-point of the flagellum of antenna 2, peduncle article 1 with a small slender distoventral tooth, flagellum up to about 25-articulate. Female antenna 2 peduncle article 5 longer than article 4; flagellum up to about 25-articulate. Antenna 1 and 2 peduncle articles robust in male, confronted margins with groups of short fine setules. flagellum slender, longer than in female; male antenna 1 peduncle article 1 without a distoventral tooth, but may have a small notch. Gnathopod 1 basis robust, broad distally, setose, posterior margin with groups of short spines, propodus much longer than the carpus, oval, palm oblique, weakly convex, delimited by one or two slender spines; merus, carpus and propodus very densely setose. Gnathopod 2 longer and more slender than gnathopod 1, basis robust, setose, with a few small groups of submarginal spines, propodus about equal to length of the carpus or slightly longer, narrowly subrectangular, palm oblique, weakly convex, delimited by a group of two to four slender spines; merus, carpus and propodus moderately setose but less dense than gnathopod 1. Pereiopods 3 and 4 in male with many long plumose setae, merus longer than the carpus and propodus together especially in pereiopod 4; pereiopod 3 carpus and propodus about equal in length, pereiopod 4 carpus very short and much smaller than the propodus. Pereiopods 3 and 4 in female with only a few simple setae; pereiopod 3 merus equal to length of the carpus and propodus together, carpus and propodus about equal in length; pereiopod 4 merus longer than length of the carpus and propodus together, carpus much shorter than the propodus. Pereiopod 5 basis prolonged distally to form a large curved process; pereiopod 6 basis with the distal angle produced, subacute, posterior margin setose; pereiopod 7 basis with the posterior margin broadly rounded, weakly crenulate, setose. Coxal gills weakly pleated. Uropod 3 rami three times the length of the peduncle, margins spinose and setose. Telson longer than wide, cleft to three-quarters of the length, each lobe with an apical spine and setule and three or four dorsolateral setules, outer apical angle subacute.

Size:
Up to about 8 mm.

Colour:
Yellowish, with orange markings on the pereion, antennae and pereiopods.

Habitat:
Depth range from 10 to 200 metres.

Distribution:
North-East Atlantic; North Sea. European coasts from western Norway to the west coast of Ireland.

Atylus vedlomensis