Velvet worm (Eoperipatus sumatranus)
Raffles Museum of Biodiversity Research, 17th May 2010
Singapore Red Data Book 2008
The type locality of Eoperipatus sumatranus (Sedgwick,. 1888), with biographical notes on its collector EJE Hekmeijer.
Wikipedia
World checklist of the Onychophora
Onychophora Website
Onychophora Online