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Damang
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| Photo Information |
Copyright: Czaldy Garrote (Muscovado)
(107) |
| Genre: Animals |
| Medium: Color |
| Date Taken: 2007-02-28 |
| Categories: Spiders |
| Exposure: f/4, 1/60 seconds |
| More Photo Info: [view] |
| Photo Version: Original Version |
| Date Submitted: 2007-03-06 2:21 |
| Viewed: 1374 |
| Points: 4 |
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| [Note Guidelines] Photographer's Note |
The first ancestral chelicerates probably evolved about 600 million years ago. They are now distinguished from the other arthropod groups by the possession of (at least) six pairs of appendages. These normally include four pairs of walking legs, a pair of chelicerae and a pair of pedipalps. They have no mandibles, no antennae and the body is divided into two, not three, sections, as in the Uniramia. They are however normally bilaterally symetrical, have a through gut, have uniramous appendages, a non-calcareous exoskeleton and are gonochoristic.
No chelicerates possess jaws for biting and chewing, but suck up their food in liquid or semi-liquid form. However this food may have been seriously torn up by the chelicerae before ingestion. Most species go in for external digestion to some extent. Meaning the secrete digestive juices onto the food item as it is held close to the mouth, or inject digestive juices into the preys body, and suck up the half digested soup that results.
The inclusion of the class Pycnogonida in the Chelicerata is generally accepted but not scientifically proven, the fossil record for pycnogonids is very scant and they differ in many ways from the other chelicerates.
The Chelicerata contain more about 80,000 species known to science most of which are Arachnids divided almost evenly between the spiders and the mites.
Phylum: Arthropoda
Sub Phylum: Chelicerata
Class: Arachnida |
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Hi Czaldy,
Impressing! Wonderful detail and colors of the spider. Perfectino!!
TFS
Regards,
Lurdes
Hello Czaldy
Very nice shot of this Hawaiian spider,
Fantastic colors and BG,Welldone.
Regards
Fartash