Description
English: Spiny orb-weavers is a common name for Gasteracantha, a genus of spiders. They are also commonly called Spiny-backed orb-weavers, due to the prominent spines on their abdomen. These spiders can reach sizes of up to 30mm in diameter (measured from spike to spike). Although their shell is shaped like a crab shell with spikes, it is not to be confused with a crab spider. This is Gasteracantha geminata. Taken at Kadavoor, Kerala, India.
Date 19 February 2011
Author Jeevan Jose, Kerala, India https://commons.wikimedia.org/wiki/User:Jkadavoor
Source: https://commons.wikimedia.org/wiki/File:Gasteracantha_geminata_by_kadavoor.JPG

Gasteracantha geminata is a species of spider of the genus Gasteracantha, found in India and Sri Lanka. It is known as the oriental spiny orb-weaver. Order: Araneae, Infraorder: Araneomorphae, Family: Araneidae, Genus: Gasteracantha, Species: Gasteracantha geminata (Fabricius, 1798).