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Lister's conch


Lister's conch
Photo Information
Copyright: Mehmet Atatur (matatur) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1054 W: 245 N: 1626] (5312)
Genre: Animals
Medium: Color
Date Taken: 2009
Categories: Molluscs
Camera: Sanyo Xacti
Details: Tripod: Yes
Photo Version: Original Version
Theme(s): A study in Conchology (seashells) 1 [view contributor(s)]
Date Submitted: 2009-03-30 14:00
Viewed: 7365
Points: 66
[Note Guidelines] Photographer's Note
MERHABA DOSTLARIM!
After a bout of flu with high fever, which run its course for more than ten days, I'm again almost good as new with only a slight fever so I can now enter the net and start looking for new entries to the TN, but first a new posting of my own...
This exquisite looking shell is a member of the Strombidae family commonly known as the Lister's Conch, variously known within the scientific circle as Strombus (Doxander) listeri, Strombus mirabilis and Mirabilistrombus listeri. It was once considered the rarest of the strombs. The first specimen came from Indian Ocean in 1620, the second one from Ceylon in 1869, and very few specimens were obtained after that. Only in 1963 a relatively rich habitat of the mollusc was discovered near Thailand and additional specimens were collected. By the late 1960s Fishermen in Thailand and Burma (Myanmar) had trawled up over 500 specimens. Despite this sudden availability, collectors were still paying as much as US$1,000 for a specimen. Today, a decent individual may be had for as little as US$7.00.
The drawn-out shell is highly ornamented and patterned in browns and creams. THe body whorl part is solidly constructed but the high spire is more delicate. Like all conches and closely related spider shells (Lambis sp.), Lister's Conch has a pronounced notch, the stromboid notch (visible just over the anterior edge in lower left part of the shell) at the front end near the siphonal notch, through which the live gastropod protrudes one of its two extensible eyes at the tip of long, stout stalks. The eye provides keen vision, the keenest of any gastropod species. A videly flared outer lip is also characteristic for this shell. A narrow, peculiarly arched foot bears a relatively small operculum at its posterior end. This arrangement enables the mollusc to kick or leap, for escaping predators, rather than gliding like most other gastropods. This conch lives in intertidal zone or below the low tide zone and generally frequents sandy environments in tropics partly covered with sea grass. The strong foot and the sickle shaped operculum allow them to dig quickly and deeply into sandy substrates for protection and during periods of shell growth. As larvae they feed on plankton, later on algae.
The present specimen (longitudinal axis 12cms.) was photographed under unilateral daylight with open-shade conditions, a contra placed white cardboard passive reflector provided some fill-in light, over a black BG.

boreocypriensis, rousettus, jaycee, goutham_ramesh, banaei_nikon, jusninasirun, Dis. Ac., sranjan, Luis52, BobH, ramthakur, aysem54, CENT-TRETZE, Hormon_Manyer, siggi, haraprasan, KOMSIS, Alex99, pierrefonds, rcrick, eng55, cicindela has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To aysem54: on Lister's...matatur 1 04-03 07:54
To BobH: on Lister's...matatur 3 04-03 06:54
To ramthakur: on Lister's...matatur 1 04-02 10:37
To jaycee: on Lister'smatatur 1 04-01 02:24
To Ishi: on Lister's...matatur 1 03-31 08:00
To goutham_ramesh: on Lister's...matatur 1 03-31 04:56
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Critiques [Translate]

öncelikle geçmiş olsun hocam, iyileşip tekrar aramıza döndüğünüze çok sevindim.
bu harika yakın-plan çalışması ve bizlerle bu güzelliği paylaştığınız için de çok teşekkür ediyorum. bugün yorum yazmadan büyük bir ustalıkla çekilmiş, ışığın ve renklerin harika kullanımı oturup seyreceğim. mükemmel bir çalışma. elinize sğlık, iyi geceler, selamlar.

Merhaba Mehemet,
what a wonderful picture of this colourful shell taken with outstanding sharpness in a very nice composition, you mmanage the shapes and the colours as a Master photographer.
TFS
Best regards
Maurizio

Gelmiş geçmiş olsun Hoca. Allah beterinden saklasın. Çekim de kavkı da klasik Atatür tarzında... elinize sağlık.
Bayram

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2454 W: 10 N: 8044] (25460)
  • [2009-03-30 21:29]
  • [+]

Hi Mehmet,

I'm sorry to hear you were ill but glad to know you are on the mend. It's so nice to see another of your wonderful shells. This nicely shaped Lister's Conch is beautiful with nice colors and fine details. The swirls remind me of soft ice cream in a cone :-)

Jane

  • Great 
  • Ishi Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 298 W: 21 N: 1943] (13387)
  • [2009-03-30 23:36]
  • [+]

Lovely speciemn, Mehmet, expertly photographed.

Why do so many shells have that amber pigment?

With best wishes for good health,

Ishi

Every time i see you picture, its the same feeling i get, you have an excellent control over your lightning (flash). Here the diagonal placement and the details on the shell is amazing.. if you share ur lighting setup ,it will be useful for some of us.

striking shell, TFS Ori

  • Great 
  • gannu Gold Star Critiquer/Gold Note Writer [C: 1001 W: 4 N: 3276] (14759)
  • [2009-03-31 9:54]

Mehmet, Fantastic shot of this shell. Superb colors and lovely presentation. Ganesh

hello Mehmet
you can do this picture's make are the BEST!!
super sharpness and great details
thanks
greeting lou

  • Great 
  • fiyo Gold Star Critiquer/Gold Note Writer [C: 1053 W: 5 N: 3475] (15161)
  • [2009-03-31 13:01]

Hocam uzun zamandır ben de yoktum, siz de epey bir ara vermişsiniz, geçmiş olsun, dilerim iyisinizdir artık. Harika bir fotoğrafla dönmüşsünüz; pozlama, detayları ve fonuyla çok keyifli bir kare olmuş, ellerinize sağlık.

Hi Mehmet
you can do this picture's make are the BEST!!
super sharpness and great details
Well done..
**MAB**

Hi Mehmet,

This shell has a very unique shape and texture. I like the details and perspective of the framing. Well done and TFS.

Best regards,
Jusni

  • Great 
  • KOMSIS Gold Star Critiquer/Gold Note Writer [C: 821 W: 0 N: 2414] (10640)
  • [2009-04-01 0:37]

Mehmet bey selamlar,
Nefis bir makro çekim.
Işık kullanımıyla,detayları net ve renkler muhteşem.
Fon nesneyi öne çıkarmış.
Emeğinize sağlık.
Seyfi.

Ciao Mehmet, beautiful shell with wonderful colors, great details and excellent sharpness, good contrast against dark BG, very well done, ciao Silvio

  • Great 
  • foozi Gold Star Critiquer/Gold Note Writer [C: 2791 W: 0 N: 6696] (25839)
  • [2009-04-01 6:24]

Merhaba Prof Mehmet Sir,
indeed this one is a lovely display of its exquisite features. Nicely shaped and excellent shellac colours to render beauty of a superbs creation. You depicted it very well showing the perspective of the pointed conch in a very attractive manner.
Lovely and pleasant presenttion.

Regards,
Foozi

Hi Mehmet,

another great close uo with exellent details and bg.
Beautiful colours an a good note.

Gert

Hello Mehmet,
Excellent sharp details of this conch against perfect dark background. TFS it Sir!
Regards-Subhash

  • Great 
  • Luis52 Gold Star Critiquer/Gold Note Writer [C: 1175 W: 8 N: 4240] (15809)
  • [2009-04-01 17:41]

Hola Professor.
Here another fine Macro of this Liste's Conch. The black BG in Your work makes it even better, and always a great note.
Nice to see You back and glad You feel fine by now.
Saludos
Luis52.

  • Great 
  • BobH Silver Star Critiquer/Gold Note Writer [C: 40 W: 8 N: 192] (650)
  • [2009-04-01 18:59]
  • [2] [+]

Hello Mehmet-

Sorry to hear that you have been ill. Hope you are over it now and back to normal.

Many thanks for yet another gorgeous shell. Both the curves and coloration of this beauty are quite unusual. Your note is fascinating (as we all expect), but as I read it and looked at the picture, an odd thought sprang to mind, and I must ask you about it.

Any biochemist knows that living things usually prefer one form among chiral molecules. Thus we all use D-sugars and L-amino acids rather than the reverse, etc. I'm sort of ashamed that I have a zoology degree and don't know the answer to the question I now pose to you. Among animals such as conchs which show chirality, do both forms appear or is one species always found as a left or right handed spiral? Further, if one form dominates, is it the same form across taxonomic categories? Does anyone know how spiral chirality (or whatever it is called) is determined?

I know this is more than a typical TN comment- feel free to email me a reply if you like. I'm really curious to hear your response on this.

Best regards,

Bob

Beautiful specimen of conch shell, Mehmet.
As usual, you have left no room for nit-picking in this lovely image.
Though my knowledge of marine life forms is almost zero, I have a childhood association with a conch shell. In a Hindu temple in our village, the priest used to blow on a conch shell and produce amazing sounds at the time of morning prayer. On rare occasions, he would allow us urchins to give it a try, but all we ended up with would be sounds akin to wind-breaking!
Sorry for the digression and thanks for sharing yet another unique shell image.
Hope you are feeling better now.
Ram

Mehmet hocam merhaba
uzuuun zamandır ben de TN de yoktum.Ahmet hocamızın desteğiyle geri döndümi.Hidrobiyoloji türlerine ait fotoğraflarınızı izlemek ve bilgilerinizi okumak inanılmaz keyif veriyordu.tam özlemişim dedim bilgilerinizi okuyarak faydalanayım dedim bi baktm ingilizce bilgi:D
ve anladım ki öğrenmek emek ister ve yanıma da sözlük alarak sizin tüm fotoğraflarınızı gözden geçirmem gerek . buna gerçekten inanıyorum ki yazılarınızın içinde çok çok önemli bilgiler var ve vakit harcamaya değecektir.
sözü daha fazla uzatmadan :)
ellerinize sağlık
saygılarımla

Hi Mehmet:

As always some precious photos that swell my collection, and once you commented that I keep them all in one file and I like to show my friends that is a great work you do each document with an explanation of their frequent features. An example to follow.
Best regards my friend
Josep

Merhaba Mehmet bey,
You're a master of this kind of captures. This photo isn't an exception: sharp, with great colours and details on the shell, and great contrast between the main theme and the black background. Simple yet wonderful image. Bravo.
Best regards from Hungary, László

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2009-04-05 2:07]

Hello Mehmet,
what a wonderful macro shot of Lister's conch taken with superb sharpness and lighting in a very nice composition and elegant presentation.
TFS.
Best regards.
Siggi

Hi Mehmet,
A beautiful capture of this Lister's Conch. Excellent composition with dark BG and sharp details. Wish you good health. Thanks a lot for sharing.

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2009-04-09 8:39]

Merhaba Mehmet,
A beautiful conch, this Lister's, well captured with superb technical quality from the dorsal POV. The sharpness and presentation with your informative note is a joy to view.
Thanks and best wishes,
Ivan

  • Great 
  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4072 W: 133 N: 7096] (23735)
  • [2009-04-09 9:00]

Hi Mehmet.
Superb description of this amazing specimen of the shell as well as the great shot of it. I like wonderful diagonal composition of the picture, precise reproduction of the colour pattern, shapes and texture of the shell. Outstanding work. My compliments.
Alexei.

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6475 W: 89 N: 15608] (65293)
  • [2009-04-09 16:06]

Hi Mehmet,simply perfect,a beautiful shell in a perfect sharpness and in the best background to have details at the top like that. Just my best compliments another time for your interesting work,have a nice day,Luciano

Hi Mehmet,

The close-up point of view is showing the details an colors of the Lister's conch. The picture is clear and precise. The use of a tripod and of the surrounding light gave a nice photo. Have a nice day.

Pierre

Hi Mehmet.

I sincerely hope you completely over the bout of flu now, this is another beautiful shot.

Stunning detail, I love the diagonal line, beautiful colours. You should seriously think of producing a book on this subject these images are amazing.

All the best, Cheers Rick :)

  • Great 
  • eng55 Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1256 W: 42 N: 1976] (5892)
  • [2009-04-24 12:00]

Hocam harika bir kare yine,
Sizin elinizden çıktığı belli oluyor hemen.
Biraz geç de olsa geçmiş olsun diyorum.
Selamlar,ellerinize sağlık!

I think I've missed quite a few of your beautiful shots, Sir.
This is a superb specimen, displayed to its best here!
To think this comes from the Indian Ocean, that too from as close as Ceylon and Burma!
Superb write up, too!Sir!
Cheers!
Goldy

And here I am again!
And again great and new for me species perfectly presented! You are a master of shell presentation, and your Mollusca lessons give me a lot of information (which I can used during my lectures with students :>).
Really nice capture!
Greetings from Lodz,
Radomir

Mehmet
I am new here, actually found this site while search for information on Strombus listeri. Congratulations on the excellent photograph of a great specimen of one of the most elegant strombs. I appreciate your photography as well as the nice description and information provided. I would, however, just offer a correction regarding the depth: while most strombs are found from the intertidal to shallow subtidal depths, this species is considered the deepest living in the family Strombidae. It has been collected alive from depths of about 50 to 120 m.
Keep up with the good work!

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