J
jesper
Guest
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(Message edited by Jesper on October 13, 2004)
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+++ jpeg +++ 24417 +++ +++
(Message edited by Jesper on October 13, 2004)
J
jesper
Guest
J
jesper
Guest
J
joseph
Guest
Love the belly pattern on this one!
TJ
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Jesper, can you find tiny whitish/greyish pits along their sides as well as on the face? Mine have them. These is supposed to be a characteristic of C.orientalis (according to Nate
).
J
jesper
Guest
Not along their side, no. These are pretty shy thus far so I haven't got the chance to interact face to face yet hehe. Will check. Dorsolaterally, laterally or ventrolaterally? I assume dorsolaterally. You can see the dorsolateral area pretty clearly from the shots, no pits there.
P
pin-pin
Guest
Jesper, are these captive bred? The belly is very red. What do you feed them?
J
joeri
Guest
That's strange, I can see those white dots already on my c.o. larves close to morphing.
J
jesper
Guest
They pet shop owner claimed they are CB, I am looking into the matter.
Pin - They have been fed mysis.
Pin - They have been fed mysis.
J
jesper
Guest
White dots?
(Message edited by jesper on October 13, 2004)
(Message edited by jesper on October 13, 2004)
J
jesper
Guest
Nope nothing like that on mine. Ventrolateral row of whitish pits that extends around the eye and all the way to the snout.... I can't possibly have missed that. Btw I think mine are built very differently compared to yours, maybe an age difference?
Strange that you see the pits already Joeri but I can't find any..... Maybe mine have black pits?
What are the purpose of these pits?
Strange that you see the pits already Joeri but I can't find any..... Maybe mine have black pits?
What are the purpose of these pits?
J
jesper
Guest
Oh there's both a dorso- and a ventrolateral row....
Nate?
Nate?
N
nate
Guest
I think they're less apparent in terrestrial animals...sure seem to have individual variations.
Jesper: I'd bet your animals have the pits, just not ringed by white.
Jesper: I'd bet your animals have the pits, just not ringed by white.
J
jesper
Guest
Is it possible that these pits closes like pores when the animal goes into a terrestrial phase?
B
benjamin
Guest
How do you feed your newts when they're on land?
J
jesper
Guest
I put mysis both on their big cork bark island and in the water at night. I did try with baby earthworms and bloodworms with very little success.
B
benjamin
Guest
What is mysis?
J
joseph
Guest
Ben: Mysis is a kinda of shrimp which is sometimes frozen for fishfood. Also known as opossum shrimp.
My individuals definetly show these pores. I think they are a caudate version of the lateral line.
Jesper: I doubt they are CB, considering you bought them at the petshop. Could have well been a sales pitch.
(Message edited by fishkeeper on October 14, 2004)
My individuals definetly show these pores. I think they are a caudate version of the lateral line.
Jesper: I doubt they are CB, considering you bought them at the petshop. Could have well been a sales pitch.
(Message edited by fishkeeper on October 14, 2004)
J
jesper
Guest
First off I'll explain what Nate explained to me in the chat:
The pores are indeed a remnant of the lateral lines in fish. The pits contain small hairs that react at the slightest water movement, the cells with the hair are called mechanoreceptive neuromasts(haircells).
I also read that these pores contain ampullary organs(i.e. cells containing electroreceptors)that allows a species to detect natural and artificial electrical fields within one's immediate surroundings. That system is evolutionary later than the mechanoreceptive neuromast system.
Now, what I reacted to after hearing this was that this system reminds me somewhat of the haircells and the tectorial membrane(in the cochlea in the inner ear). The tectorial membrane would be represented by the water. However in the inner ear the haircells are dependent on the liquid around them. They must have liquid and it must be liquid with a certain composition(endolymphatic liquid, high on K+).
The animals will not have any use of the system when terrestrial. Sensory cells are in general protected from the environment due to their innate sensibility - I wonder how these can take it to be exposed to a non-buffered liquid like water....
When going terrestrial some kind of liquid must be retained in these pits or pores to prevent the sensory cells from drying, is it not reasonable to assume that the pores will indeed close? Maybe even produce some endogenous liquid? Then keep closed until the animal enters water and stays there for an extended amount of time.
The pores are indeed a remnant of the lateral lines in fish. The pits contain small hairs that react at the slightest water movement, the cells with the hair are called mechanoreceptive neuromasts(haircells).
I also read that these pores contain ampullary organs(i.e. cells containing electroreceptors)that allows a species to detect natural and artificial electrical fields within one's immediate surroundings. That system is evolutionary later than the mechanoreceptive neuromast system.
Now, what I reacted to after hearing this was that this system reminds me somewhat of the haircells and the tectorial membrane(in the cochlea in the inner ear). The tectorial membrane would be represented by the water. However in the inner ear the haircells are dependent on the liquid around them. They must have liquid and it must be liquid with a certain composition(endolymphatic liquid, high on K+).
The animals will not have any use of the system when terrestrial. Sensory cells are in general protected from the environment due to their innate sensibility - I wonder how these can take it to be exposed to a non-buffered liquid like water....
When going terrestrial some kind of liquid must be retained in these pits or pores to prevent the sensory cells from drying, is it not reasonable to assume that the pores will indeed close? Maybe even produce some endogenous liquid? Then keep closed until the animal enters water and stays there for an extended amount of time.