Lake in the Hills, Illinois. Lake in the Hills (often abbreviated L.I.T.H. or LITH) is a village in  McHenry County, Illinois, United States. The population was 23,152 at the 2000 census. A 2006 special census put the village's population at 29,175.
Sea cucumbers are typically 10 to 30 cm (3.9 to 11.8 in) in length, although the smallest known species are just 3 mm (0.12 in) long, and the largest can reach 3 meters (9.8 ft).The body ranges from almost spherical to worm-like, and lacks the arms found in many other echinoderms, such as starfish.
Sea Cucumber. The sea cucumber is a marine animal (not plant) that is an echinoderm from the Holothuroidea class. It has leathery skin, an elongated body like a cucumber, and a single, branched gonad.They are found worldwide on the sea floor.ike any other echinoderm, sea cucumbers have an endoskeleton that is below the skin. A remarkable characteristic is that the catch collagen that forms on their body walls. This can be loosened and tightened when the sea cucumber wants it to be, and can be used to squeeze through a small gap.