aerliss
Achatina immaculata
Posts: 281
|
Post by aerliss on Jul 19, 2010 12:54:28 GMT
|
|
|
|
Post by crossless on Jul 19, 2010 14:19:19 GMT
Aww cute. I have heard one story of one eyed snail. It lived short but happy life with his one eye.  |
|
|
|
Post by fabrizio on Jul 19, 2010 20:09:06 GMT
If it's just for the lacking eye, I believe it can live happily, provided it is not accompanied by other genetic disruptances of major concerns.
In a captive environment, as said, they should have almost the same survival/growth chances, of a "normal" snail... and it would be interesting to discover, if this trait has become genetically fixed, and liable to re-appear in the offspring.
How much of the hatchlings have this trait, and what percentage approx. ?
|
|
coyote
Archachatina papyracea
Cochleas ego amo
Posts: 2,955
|
Post by coyote on Jul 19, 2010 20:10:57 GMT
Very cute little snail. And how peculiar about its one eye. Are all the other one-eyed offspring missing the right eye, or does it differ among them? |
|
|
|
Post by ness on Jul 19, 2010 20:13:08 GMT
Aw what a sweet little snail. Hope he has a good life with you. |
|
aerliss
Achatina immaculata
Posts: 281
|
Post by aerliss on Jul 20, 2010 0:38:25 GMT
fabrizio; the ratio WAS about 1/3rd with one eye. Most of them have either died or not grown very large. That one in the picture was the largest I found (although many were asleep). coyote; I've not checked! I'll have to keep an eye on it (no pun intended). ness oh he will XD I'll be keeping all the little guys with one eye.
|
|
|
|
Post by fabrizio on Jul 20, 2010 1:49:40 GMT
They will surely live well, as you will care after them!
|
|
|
|
Post by lee2211 on Aug 3, 2010 18:25:35 GMT
Dear me, poor tyke. I hope he lives a long and happy life.
Would the lack of one be maybe to do with inbreeding or something along those lines?
|
|
|
|
Post by morningcoffee on Aug 3, 2010 18:29:04 GMT
I had a wild-caught one-eyed helix aspersa for a few months last year. He was a cute little thing, perfectly healthy except that he was completely missing one eye stalk. He went to live back outside with a bunch of unrelated aspersa offspring eventually |
|
|
|
Post by Robert Nordsieck on Aug 3, 2010 18:35:34 GMT
Hi there, friend if mine has got a none-eyed (no pun intended) Helix pomatia. The blind snail has no problems in interacting with the other snails and even seems to have a "knack with the ladies", copulating rather often Kind regards Robert |
|
|
|
Post by fabrizio on Aug 3, 2010 20:26:53 GMT
Thank you Robert, really interesting fact!!  I would know more, much more...  First of all, I hope your friend is still keeping it, and letting to indulge in his "penchant"! -And it would be interesting to know, whether there is any relations between such behaviour and lacking of eyes... perhaps some deeper mutation, in the SNC, that alterates his "mood"... -Adscertaining the trait in the offspring could be interesting, too; surely this "anomaly" could be inheritable, and become -if needed- a stable, "normal" morphological trait thereafter. -Take for example Cecilioides acicula, a "subterranean" little snail (loosely related to Achatina, if I'm not wrong), blind and eyeless: I found last year by chance a single specimen of that... -But this "eyeless" snail, has actually eyestalks, or these too are lacking? _A picture would be really appreciated, I believe... Kind Regards, fabrizio |
|
luna
Achatina fulica
Posts: 13
|
Post by luna on Aug 20, 2010 22:27:47 GMT
Aw bless! This has made me chuckle! I'm sure he's having just as much adventures viewing the world with one stalk. |
|
aerliss
Achatina immaculata
Posts: 281
|
Post by aerliss on Aug 26, 2010 8:37:53 GMT
Dear me, poor tyke. I hope he lives a long and happy life. Would the lack of one be maybe to do with inbreeding or something along those lines? Definitely not inbreeding. Both parents are wild caught, one is from Spain and the other from Scotland... or the parent was already fertile when I got it but I am definitely thinking that the babies are a result of the Eobania and the Aspersa breeding now that they are older. I have pictures of them I need to post. |
|
|
|
Post by Robert Nordsieck on Aug 29, 2010 9:29:50 GMT
|
|
|
|
Post by Lady Escargoth on Sept 1, 2010 23:07:48 GMT
They are cute even though they have eye porblems anyway!!!
|
|
|
|
Post by Schnäggli on Sept 20, 2010 12:28:03 GMT
Poor little guy, but hopefully he will have a happy and healthy life even with just one eye. A few months ago I stumbled upon a one-eyed Oxychilus but he seemed to be doing fine in the wild in spite of all. One of my adult Helix pomatia is one-eyed as well, but this little defect doesn't seem to bother her, as she has been repeatedly mating and laying eggs. I'm curious to see if any of her offspring will be one-eyed as well (the other parent has both eye stalks). |
|
|
|
Post by Lady Escargoth on Sept 24, 2010 17:00:09 GMT
I just noticed that my two albino ovums have no black dot at the top of their tentacles. Is it just because they are albino that the eye seems invisible (no pigment)? Or are they blind and have no eye balls? I cannot distiguinsh anything inside...  |
|
|
|
Post by muddydragon on Sept 24, 2010 21:04:59 GMT
true albino snails would have pink eye spots, some of mine do. when small you can't tell atall. but you should be able to make out a pink/red dot if it was due to the albinoism. so if theres nothing there its possible the are blind.
some apparently albino margies have black eye dots but they are not true albinos they are just leucistic (white)
|
|
|
|
Post by crossless on Sept 24, 2010 21:40:59 GMT
Example with dogs that have white fur are more likely at old age blind or deaf so albonism some how affect to blindness?
|
|
|
|
Post by muddydragon on Sept 24, 2010 23:11:02 GMT
well unless the dogs have pink eyes and noses they're not albino they are merely white so that would be a link between 'white' alleles and blindness/deafness. a true albino cannot produce any pigmentation so must have pink eyes (this is because you can see blood vessels behind the eye i believe... not 100% certain on that) and be white all over.
|
|
|
|
Post by ness on Sept 25, 2010 8:22:17 GMT
Albino humans generally have purple-blue eyes, and most if not all have some degree of blindness, many are very blind. I'm not sure if that is true of other mammels, or anything else.
|
|
|
|
Post by muddydragon on Sept 25, 2010 10:21:58 GMT
i would immagine the purple is due to combinations of 'blue' blood in arteries and tyndall scattering. (+ the aforementioned pink)
|
|
|
|
Post by Lady Escargoth on Sept 25, 2010 11:19:29 GMT
Well that's tricky because albino margies can definitely produce melanine since their shells remain coloured.
But I will figure it out for their eyes when they grow up... They might appear later !
|
|
|
|
Post by muddydragon on Sept 25, 2010 16:35:27 GMT
melanin isn't the only pigment found in nature. are you sure the overall pigment in snail shells is melanin? (i haven't done the research had a quick look but my institution didn't allow access to a rather helpful looking paper, and i'm too lazy to keep hunting) i know that the other 'tints' in the shells are various other 'waste' minerals and such. but are you certain the dark bands are produced via melanin? it's also possible, of course, that if the shell colour is from menalin it may be a different sort of menalin (you get different types) and depending on where in the pathway menalin production is blocked it may allow menalin production in the shell but not the skin and be reversed for rodatzi.
|
|
|
|
Post by muddydragon on Sept 25, 2010 16:39:37 GMT
Note when i said lack of pigment earlier - refering to albinoism i was refering to the pigment melanin, which may have confused some people.
|
|
First of all, I hope your friend is still keeping it, and letting to indulge in his "penchant"!
