<< Previous Next >>

Crab Spider (Front POV)


Crab Spider (Front POV)
Photo Information
Copyright: Haraprasan Nayak (haraprasan) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1570 W: 101 N: 5421] (20403)
Genre: Animals
Medium: Color
Date Taken: 2009-09-11
Categories: Spiders
Camera: Canon EOS 400D, Tamron 18-200mm F3,5-6,3 XR DiII LD Asp, Raynox DCR-250 Super Macro
Exposure: f/25.0, 1/160 seconds
Details: (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2010-10-24 10:36
Viewed: 4136
Favorites: 1 [view]
Points: 54
[Note Guidelines] Photographer's Note
ANATOMY OF SPIDER HEAD

CEPHALOTHORAX

cephalothoraxThe cephalothorax is the first of 2 body parts on a spider. It is a combination of the head and thorax, and on it are found the legs, eyes, pedipalps, chelicerae, and other mouthparts. The cephalothorax and abdomen are connected by a thin stalk called the "pedicel." Among arachnids only spiders have this thin stalk between the abdomen and cephalothorax.

CHELICERAE

cheliceraeThe chelicerae are a spider's jaws. They are located on the very front of a spider's cephalothorax. Every spider has a pair of chelicerae, and they are tipped with fangs. Chelicerae are filled with muscles, and are used to hold prey while the spider injects venom. Note that a few rare spiders, such as those in the scientific family Uloboridae, do not have venom glands, although they possess fangs and chelicerae.

Spiders do not actually drink fluid through their fangs. Located behind the chelicerae are other small mouthparts, including the labium and labrum. Along with the chelicerae, these mouthparts work together to direct food into the spider's mouth, which is hidden behind the chelicerae and other mouthparts.

Some spiders, like cobweb spiders, are only able to consume fluids, but most spiders are able to eat solid food after it has been shredded and mashed by the chelicerae.

In most spiders, the chelicerae are like scissors: they move from side to side. But in some primitive spiders, such as bird spiders (a.k.a. tarantulas), trapdoor spiders, and purseweb spiders, the chelicerae move up and down, like 2 fingers side-by-side.

All of the other arachnid groups, including Scorpions, Mites, and Harvestmen, have chelicerae as well, but spiders are the only arachnids with venomous chelicerae.

PEDIPALPS

pedipalpsLike the chelicerae, a spider's pedipalps are part of its mouth, and are located just between the chelicerae and first pair of legs on the cephalothorax. Pedipalps are jointed, and look somewhat like small legs. They are not used like legs, though. Instead, they are more like antennae: pedipalps help the spider sense objects that it encounters. Some spiders also use their pedipalps to shape their webs and to aid in prey capture and feeding.

Pedipalps are used by male spiders to transfer sperm to female spiders. In fact, you can usually distinguish a male spider from a female because of the male's enlarged pedipalps.

All arachnids have pedipalps, but they often look quite different than spider pedipalps. In Scorpions, for instance, the large pincers are actually modified pedipalps.

EYES

A spider's eyes are located on the cephalothorax. Most spiders have 6 or 8 eyes. Spider eyes are considered "simple": they do not have multiple lenses and facets as do the compound eyes found on some insects. Although some spiders can only see the difference between light and shadow, others, especially Jumping Spiders, are believed to have excellent eyesight.

Source: www.uky.edu

Thank you for viewing.

boreocypriensis, Ozgur70, eqshannon, cirano, Black44, siggi, Dis. Ac., mkurtel, anel, Argus, ellis49, rousettus, Noisette, oscarromulus, manaswi27, Miss_Piggy, Hormon_Manyer has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

Namastey Hara Ji,

What a strange crab spider that i saw firstly. As if its frons floating on its body:) Very strange! Perfect light management and symmetric composition MF!
TFS and have a nice new week!
Cheers,

Bayram

Very beautiful.
Your technics are so good. And it is very good with f/25.
TFS.

Nice close in macro on a wall or table...this gives one pause to examine the spider along with the notes...perfectly. Good lesson for me and I'm sure for others...Best wishes.
Bob

  • Great 
  • zetu Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 967 W: 26 N: 3888] (16941)
  • [2010-10-24 11:00]

Hello haraprasan
Wow! Superb capture. All is perfect
regards
Razvan

Ciao Haraprasan, great POV on little spider, fantastic details, superb macro, I like a lot, ciao Silvio

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2010-10-24 11:28]

What a strange crab spider and what a spectacular pic my friend! It seems made in glass like the cristal animals of Swarowski!Impressive sharpness,light and details,a beautiful masterwork!Thanks for share,have a nice week,Luciano.

  • Great 
  • PeterZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
  • [2010-10-24 11:31]

Hello Haraprasan,
Beautiful photo in splendid light, colours and superb sharp details. A pity the few dirty spots in the BG. Great frontal POV. Original photo.
Regards,
Peter

  • Great 
  • cirano Gold Star Critiquer/Gold Note Writer [C: 997 W: 0 N: 944] (13609)
  • [2010-10-24 11:54]

Hello Haraprasan,
A wonderful macro shot with excellent sharpness,details and perfect colors.Very strange species.TFS.
Dûrzan

Hola Haraprasan

Vaya composición más original, con esos ojos vivos mirandote, una verdadera obra de arte. Fantastica, y con ese difuminado en el cuerpo y solo apreciandose nitida la parte de los ojos, es excelente. Muy buen POV.

Un saludo de Antonio

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2010-10-24 13:18]

Hello Haraprasan!
Great macro my friend, it's incredible! So sharp with great details, very impressive. Well done!
Best regards Siggi

  • Great 
  • foozi Gold Star Critiquer/Gold Note Writer [C: 2791 W: 0 N: 6696] (25839)
  • [2010-10-24 18:37]

Hello Haraprasan,
wow...a simple shot in excellent. The nice details expertly shown in good pestel colors.
Congratulations for a splendid work here.

regards,
Foozi

Hello Haraprasan,

this frontal pov are very nice and it looks like an flying saucer.
Exellent sharpness, bg and dof.
Fine colours.
This are an very beautiful spider.

Gert

Olá Haraprasan

Que magnífico close up. Excelente definição, DOF e o fundo claro ficou muito bom. Parabéns.

Abraço
Paulo

Hello haraprasan,
A nice angle was clear and beautiful shots,
thank you for sharing.
Best Regards,
Murat

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2010-10-25 4:46]

Hello Haraprasan,
Now this is interesting and the shot looks at the same time artistical, what isn't the case in general with this kind of approach.
Perfectely seen and presented.
Thanks
Anne

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2010-10-25 4:49]

Namastay Haraprasan,
A superb macro of a Crab Spider, the frontal POV creating the crab aspect more than spider!Excellent sharpness where it is needed and a fine contrast against the clean neutral BG.
Thanks for sharing this fine unusual image,
Kind regards,
Ivan

Hello Haraprasan,
this is a really fine macro shor ot the crab spider, taken with a frontal view.
Good sharpness, we can see the fine details here, as the eyes and hair.
Well doone,mf.
Regards
Gert

Magnificent work MF! The small spyder was taken in razor details and excellent sharp. One of your best.

Roberto

Fenomenal. Impresionante ángulo, buena luz y captura de los colores.
Un abrazo.

hello Haraprasan
I thought it was a crap on the thumbnail. what a interesting spider species. you greatly captured it with superb macro shot. sharpness of focus, colors, frontol POV and DOF great. light using and composition also great. thanks for sharing, best wishes
Ahmet

Hello Haraprasan
WOW ! this is a very beautiful spider, totally white and almost transluscent like glass, excellent eye contact, very sharp detals and wonderful luminosity
Have a good night
Jacqueline

Haraprasan, NAMASTAY!!!
What an education!
I always figured they had more than two eyes; now it has been CONFIRMED. Thanks.
Re: the image.
FABULOUS!!!
Mario from Canada.

Hello Haraprasan,
Excellent macro capture with superb details .TFS
Sami TAMSON

hello Mr.nayak
great shot good macro and focus
nice BG good POV
TFS
manaswi

Hallo Haraprasan
We have returned from a lovely holiday in the Kruger after 3 weeks and I missed out on such a lot of great images in this time. In the meantime our 1st grandchild has also been born and Trek Nature had to wait for both Loot and me to get over our excitement.

This is indeed a lovely macro and you have captured this crab spider beautifully from the front, showing all the details especially in the facial area perfectly. Details are seen with great clarity, especially the spikes on its paws and its eyes. I like the light in the image. Thanks for sharing this lovely image with a pleasing composition. Best regards.
Anna

  • Great 
  • nagraj Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1618 W: 106 N: 3208] (15166)
  • [2010-10-27 6:29]

Hi,
I was away and missed this image, thanks I saw this lovely frontal view image, well done. tfs.
nagraj.v

Hi Haraprasan,
Very attractive and very unusual kind of shot, we don't see spider's head from "face to face" so often. Excellent sharpness and very effective minimalistic composition. Bravo.
Have a great festive season, best regards, László

Calibration Check
















0123456789ABCDEF