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Post by Paul on Jul 20, 2005 15:49:23 GMT
My panthera are the striped form. They have pale bodies and bluntish shells, and distinct stripes. What is different is that the shells are much darker so the stripes are less noticable. Also, they develop whiteish scuffing which hides some of the distinctness unless you wet them.
I'll try and get some pictures because the parents were positively identified by Fred Naggs, the resident snail expert at the British Natural History Museum. I asked how it had been done, and they had used their shell collection and various references, including Bequaert.
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Post by Paul on Jul 17, 2005 20:20:10 GMT
yeah, there probably isn't a name for it. In fact, Columella lip sounds right to me
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Post by Paul on Jul 17, 2005 19:07:22 GMT
I don't mean the columella itself, I mean the shell that seams up to the columella, near the mantel. On mine it is pink but the columella itself isn't. Is there a name for this bit?
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Post by Paul on Jul 17, 2005 16:36:03 GMT
Yep, thems dimidiata (or at least we think so Incidentally, they look like the paler ones Mike mentioned. Do they have a pink seam, between the opening and the mantel on the underside. I need to get a picture to explain, anyone with Tigers will know what I mean, if you know what it is called, please let me know. All my adults have this to varying degrees.
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Post by Paul on Jul 11, 2005 15:13:57 GMT
I've no idea why they are less evolved, I read that in a book by Albert Mead (I think). I imagine there are biological differences that place Archachatina closer to less evolved species.
As for eggs needing air, I can't imagine they need a lot if they do need air but if you seal them in a container, that will create a "forcing house" for bacteria and fungus so they'd need to be aired out regularly so your eggs don't get contaminated.
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Post by Paul on Jul 10, 2005 17:18:26 GMT
Tigers can lay hundreds. Catherine's (whose babies you've all got) laid 150 and they all hatched.
Margies and other Archachatina are more primitive snails and much more different to tigers than perhaps a dimidiata or any other Achatina so they aren't really comparable in that sense.
I think the biggest eggs for land snails is Megabulimulus from South America.
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Post by Paul on Jul 7, 2005 15:07:48 GMT
I'm pretty certain they are neither of those species.
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Post by Paul on Jul 10, 2005 16:16:56 GMT
that's the one Arno but the link on your Library page doesn't work for me. I get:
"<response type="error" value="Media request timed-out. Token: 5G048NRGQQ2WPDRKNRAR"/>"
although the link you provided here works fine.
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Post by Paul on Jul 10, 2005 15:58:38 GMT
This is like trying to explain the word between without using it!!!
"Polymorphism: Difference in DNA sequence among individuals. Genetic variations occurring in more than 1% of a population would be considered useful polymorphisms for genetic linkage analysis. Compare mutation."
"A trait of an organism that is found in more than one state in a population. Also used for the existence of different forms of a gene in a population. For example, one well known polymorphism of color vision is the existence of both red-green dichromats and normal trichromats in the human population."
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Post by Paul on Jul 10, 2005 15:36:02 GMT
Going back to Marysnail's question about breeding, I swear I have seen an article about shell polymorphism and genetics for Cepaea on Arno's site. Arno?
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Post by Paul on Jul 4, 2005 19:12:51 GMT
Probably: Sep-ay-ah nem-or-arlis
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Post by Paul on Jul 8, 2005 2:10:54 GMT
I am indeed!!
Arno, sophie means ask you how old Salty and Saraneth are?
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Post by Paul on Jul 7, 2005 4:32:39 GMT
How old are Salty and Saraneth?
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Post by Paul on Jul 3, 2005 6:10:30 GMT
Fantastic pictures! Really crisp and clear. I'd like to use some of them on the gallery section of the website if you don't mind. That goes for everyone really. If I see a picture I like or think will illustrate a point I'd like to use it or part of it. You'll get the credit. Please pm me if you don't wish me to.
I'm astounded by the colour of Salty. I have heard that captive reared snails tend to have lighter bodies than their wild counterparts. (from the margie breeding paper I have.). One of my margies have that body colour, and one other very similar and that is considered strange in that paper. But I have seen quite a few.
In Africa, a light-skinned tiger is called a "king snail" and is highly prized for food. I think it is believed to have magic properties by the natives. On the other hand, light skinned margies are not liked at all and as a consequence, can be seen commonly. That goes against the claim of rarity in the breeding paper. Not sure if the king snail has to be an albino or just light skinned like yours.
I wonder if his skin will turn darker at some point? You mentioned it had already but will it again?
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Post by Paul on Jul 7, 2005 16:14:03 GMT
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Post by Paul on Jun 28, 2005 17:10:58 GMT
It is probably the aspersa that have laid the eggs. They make fulica look under-sexed and they look about the right size.
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Post by Paul on Aug 26, 2005 3:42:17 GMT
They certainly feel very different, more gelatinous. Their bodies are to Achatinas what Achatinas are to Archachatinas if that helps explain it.
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Post by Paul on Aug 17, 2005 19:43:03 GMT
Yeah, that sounds like a good idea Nat. But I'm convinced they can only lay 2 at a time. There is no more room inside. What remains to be seen is how often they lay and whether they hatch.
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Post by Paul on Aug 17, 2005 18:24:04 GMT
You start by drawing names out of a hat or something.
If I was starting doing it just for myself, I'd draw a list up. New people randomly ordered at the top, people I have already sent stuff to randomly ordered at the bottom.
The only trouble is that it would be a million times better if we did a communal one. Then that would be fairer.
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Post by Paul on Aug 17, 2005 17:43:47 GMT
No, people get offered it, in order from first to last. So if the first person took the offer they then move to the bottom.
If they choose to pass up the offer they stay where they are.
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Post by Paul on Aug 17, 2005 17:29:44 GMT
well, exactly, I was kind of hoping people may have suggestions. I do have an idea though.
It may be cool to set up a list, a round-robin so to speak. When you join you get added to the bottom of the list. When a spare snail comes up, the top of the list get first refusal. If they accept they drop to the bottom of the list. If they refuse they stay where they are and the next in the list gets offered.
If something like this was organised, I'd agree to join in with it. Everyone would still be getting snails from their own efforts, but it'd be a fair way to distribute babies.
I may do this for my own snails in the future. Whoever wants can be on my list.
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Post by Paul on Aug 17, 2005 17:21:43 GMT
Having said that, its 99% likely that I will go down in date order Coz, how do you pick?
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Post by Paul on Aug 17, 2005 17:20:20 GMT
I already have one now, but the list is long and the babies (if they hatch) will be few and far between. It seems to me that a lot of people miss out on unusual species coz they're not quick enough. Now, I know in some ways that is fair in that people who are scouring lists are putting more effort in but on the other hand, I think it would be nice to share the wealth and species around if you see what I mean. I just feel that some people are destined to miss out over and over again coz of lack of funds or not being as quick as some of us.
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Post by Paul on Aug 17, 2005 16:28:42 GMT
So you want some Kev? lol
I've not forgotten.
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Post by Paul on Aug 17, 2005 15:56:07 GMT
By all means add you request to the list, I will get around to everyone eventually but I intend to figure out a fair way of choosing, although I already have a list of people I still owe (well, people who helped me or gave me species) so we'll have to see.
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