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

(Costa, 1853)

Description:
Generally very similar to Ampelisca tenuicornis. Urosome segment 1 with a small rounded dorsal keel, more pronounced in male than in female. Epimeral plate 3 with the posterodistal margin broadly rounded. Head narrowly truncated, ventral margin about straight. Antenna 1 short, in female reaching just beyond the end of the peduncle of antenna 2, peduncle article 1 robust and equal in length to article 2, flagellum up to about l5-articulate. Female antenna 2 about three-quarters of the body length; in male longer than the body. Pereiopod 3 merus without a distal lobe; pereiopods 3 and 4 dactylus about straight and much longer than the carpus and propodus together. Pereiopod 7 basis equal to, or a little longer than the length of the rest of the appendage, ischium longer than the merus, propodus narrowly oval. Uropods 1 and 2 with small marginal spines. Telson elongate, deeply cleft, without dorsal setae and with two to four small apical setules.

Size:
Up to 10 mm.

Colour:
Whitish, yellow-brown laterally with red markings on the margins of the pleon and pereiopods.

Habitat:
Depth range from 10 to 200 metres, usually on sandy or muddy sediments; often found with Ampelisca tenuicornis.

Distribution:
North-East Atlantic, from west Norway to North Africa; Mediterranean, Adriatic, Black Sea.

Ampelisca diadema