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
Links to other Web sites

(Bate and Westwood, 1861)

Description:
Coxal plates elongate; epimeral plate 3 posterodistal angle forming a very large tooth. Head with a prominent lateral lobe, triangular, apex subacute; eyes large, oval. Antenna 1 peduncle article 1 only moderately large, articles 2 and 3 compressed, flagellum slender and about 18-articulate in female, flagellum in male much longer and up to 30-articulate, article 1 of the flagellum large and setose; accessory flagellum 5-articulate. Antenna 2 in female equal in length to antenna 1, flagellum about 15-articulate, in male exceeding the body length and very slender, flagellum filiform; Antenna 1 and 2 in male with calceoli. Gnathopod 1 slender, propodus shorter than the carpus, narrowly rectangular, palm oblique delimited by a large spine, dactylus with a tooth on the inner margin, palmar margin minutely toothed. Gnathopod 2 propodus a little shorter than the carpus, minutely subchelate. Pereiopods 3 and 4 conspicuously setose; pereiopods 6 and 7 elongate, propodus long and narrow, dactylus straight and very slender. Uropod 2 inner ramus with a distinct constriction marked by a large spine; uropod 3 rami spinose, inner ramus only slightly shorter than the outer one, inner margins with few setae. Telson cleft to three-quarters of its length, each lobe with three long lateral spinules and a small group of apical spinules.

Size:
Up to about 12 mm.

Colour:
Whitish.

Habitat:
Depth range from 5 to 200 metres, occasionally recorded down to 1200 metres: locally common.

Distribution:
Arctic Ocean; North-East Atlantic: North Sea; European coasts from northern Norway to the Mediterranean; Canary Islands, Rockall.

Tryphosites longipes