Molecular Biology and Genetics
Barcode data: Heteropoda maxima
There are 4 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Statistics of barcoding coverage: Heteropoda maxima
Public Records: 4
Specimens with Barcodes: 4
Species With Barcodes: 1
Giant huntsman spider
The colouration is yellowish-brown with several irregularly distributed dark spots on the rear half. The legs have wide dark bands before the first bend. Like all huntsman spiders, the legs of the giant huntsman spider are long compared to the body, and twist forward in a crab-like fashion.
Apart from its size, the H. maxima can be distinguished from other species of Heteropoda by genital characteristics: On males, the cymbium is much longer than usual, at least three times longer than the tegulum. The female is distinguished by a characteristically shaped epigyneal field with two anterior directed bands, and the course of their internal ducts.
The giant huntsman spider is the largest member of the Sparassidae family, boasting a 30 centimeter (12 inch) leg-span, and 4.6 centimeter (1.8 inches) body-length. The largest known member of the Sparassidae known prior to the discovery of H. maxima was the Australian Beregama aurea (L. Koch, 1875) with a body length of about 4 centimeters. (Since the discovery of H. maxima, Sparassidae species larger than B. aurea has been discovered, one of them is considered to be the largest in the Middle East).
Distribution and habitat 
The giant huntsman spider is found in Laos, and is probably a cave dweller because of its pale colour, long legs and special hairs on the second foot of the male. There is no apparent reduction of the eyes, however, possibly because the species lives near cave entrances.
A representative of the World Wide Fund for Nature quipped that "Some of these species really have no business being recently discovered", suggesting that it is surprising for a species this large to go undiscovered for so long.
See also 
- Goliath birdeater (Theraphosa blondi), largest known spider in the world by mass
- Nephila jurassica, the largest known fossilised spider
- Jaeger P. 2001. A new species of Heteropoda (Araneae, Sparassidae, Heteropodinae) from Laos, the largest huntsman spider? Zoosystema 23 (3): 461-465.
- "Sparassidae (Family)". zipcodezoo.com. Retrieved 18 December, 2008.
- "The Find-a-spider Guide: Beregama Aurea". University of South Queensland. Retrieved 18 December, 2008.
- Cerbalus aravaensis
- "New Species Alert!Hot Pink Millipede, Collosal [sic] Spider, and Tiny Deer Emerge.". http://blogs.discovermagazine.com/. Retrieved 18 December, 2008.
- "New species discoveries". World Wide Fund for Nature. Retrieved 17 December, 2008.
- "PHOTOS: Cyanide Millipede, Huge Spider Among New Species". National Geographic. Retrieved 17 December, 2008.
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