They create a yellow-brown tubular silken case, with fine length lines.

They create a squat tubular silken case of 6-7 mm.

They create a slender tubular silken case of about 10 mm long.

They create a tubular silken case of up to 8 mm long.

They create a tubular silken case which is 6-8 mm long.

They create a tubular silken case of about 15 mm in length.

They create a large shining black tubular silken case of about 19 mm long.

They create a reddish brown, tubular silken case of 5-6 mm.

They create a tubular silken case which is covered with sand grains.

They create a tubular silken case with dark length ridges.