Nyssodesmus python (Peters, 1864). Central America, Costa Rica.

Barydesmus sp. South America, Peru. Photo courtesy of P. Wittman.

Barydesmus sp. , mating pair. South America, Peru. Photo courtesy of P. Wittman.

Nyssodesmus python (Peters, 1864). Central America, Costa Rica.

Barydesmus sp. in coil. South America, Peru. Photo courtesy of P. Wittman.

Nyssodesmus python. Central America, Costa Rica, Monteverde Cloud Forest Reserve. Photo by Dave Mangham/www.wildlifephotos.org.uk

Barydesmus sp. South America, Peru. Photo courtesy of P. Wittman.

Acanthodesmus sp. Asia, Eastern Malaysia, Sabah. Photo courtesy of N. Messina.

Barydesmus sp. South America, Peru, Loreto Prov., Iquitos. Photo courtesy of C.L. Hogue.

Barydesmus sp. South America, Peru. Photo courtesy of P. Wittman.

Hoplurorhachis sp. Asia, Eastern Malaysia,  Sabah. Photo courtesy of N. Messina.