Original sentence: The spiderhunters are birds of the genus Arachnothera, part of the Sunbird family.They are confined to the Oriental zoogeographic region, occurring from India east to The Philippines and from the Himalayas south to Java; they reach their greatest species diversity in the Thai-Malay peninsula, Sumatra and Borneo
Edited sentence: The bills of the spiderhunters are long, at least twice the length of the head, and are decurved and stout.The genus contains eleven species.The most atypical spiderhunter plumage is that of the Whitehead's Spiderhunter, which is black with white streaking on the undersides and back and a yellow rump.The plumage is much drabber than the other brightly coloured sunbirds, is the same for both sexes, and contains no iridescence.The spiderhunters are amongst the largest of their family, at between 13 to 22 cm in length they larger than most of the other sunbirds.The spiderhunters are birds of the genus Arachnothera, part of the sunbird family.The tongue forms a complete tube for most of its length.The uppersides of most species are olive-green and the undersides dull white or yellow - in around half the species the undersides are streaked.Unlike the rest of the family, which is more widespread, they are confined to the Oriental zoogeographic region, occurring from India east to The Philippines and from the Himalayas south to Java; they reach their greatest species diversity in the Thai-Malay peninsula, Sumatra and Borneo