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(Hodge, 1864)

Description:
Body thick and massive, somewhat depressed, 2nd trunk segment well separated from the cephalon as well as from the following one; the last two segments coalesced. The lateral corners of the frontal part drawn out to conical prominences projected forward. Lateral processes thick, almost contiguous, each process with a prominent pointed dorsal tubercle. Cephalon massive, with an indistinct neck and a square frontal part. Proboscis more than half as long as the rest of the body, with its widest point near the middle of its length. Chelifores about half the length of the proboscis, laterally inclined. Palps with nine segments, rather slender, usually pointing in a lateral direction.
Ovigerous legs present in both sexes, with 7-10 segments, relatively short, without a distinct terminal claw.
Ambulatory legs three as long as the body, powerfully built and partly beset with setae, without spines; propodus almost uniform in breadth, slightly curved, and at the base furnished on the inner margin with three strong spines; terminal claw about half the length of the propodus; auxiliary claws well developed.
Length of the body up to 2 mm.

Habitat:
Sublittoral, often on hydroids and bryozoans.

Distribution:
It occurs in the Atlantic and western Mediterranean.

Ammothella longipes