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Caudal fins, cloaca, dorsal fins, mental glands, nasolabial grooves, nuptial pads, papilae, premaxillary teeth (in CC amphib glossary)

This is a discussion on Caudal fins, cloaca, dorsal fins, mental glands, nasolabial grooves, nuptial pads, papilae, premaxillary teeth (in CC amphib glossary) within the Glossary - Completed Words forums, part of the Glossary Project category; basic definitions here. any other reproductive anatomy should be included in this thread....

Glossary - Completed Words A place to move completed words out of the Glossary Project.

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Old 24th November 2007   #1 (permalink)
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Default Caudal fins, cloaca, dorsal fins, mental glands, nasolabial grooves, nuptial pads, papilae, premaxillary teeth (in CC amphib glossary)

basic definitions here. any other reproductive anatomy should be included in this thread.



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Old 24th November 2007   #2 (permalink)
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Cloaca
The glandular area around the [vent]. It is a common opening for the alimentary canal, oviducts and bladder. During breeding season the cloaca of some male caudates may swell due to the enlargement of the cloacal glands.

Papillae
Small projections of skin that line the opening of the [cloaca]. Normally associated with glandular swelling during breeding season.


[Caudal] & [Dorsal] fins
Extended fins grown on some male caudata during the breeding season. Most markedly seen in the crested newts (Triturus) although they can be seen in others too. The fins are associated with visual, tactile and chemosensory courtship behaviour and are normally combined with the development of bright colours and thus increase the surface area of this colouring.

Click the image to open in full size.

Mental Glands
Circular glands found on the chin of most male plethodontids. These are brought into contact with the female during courtship.

Premaxillary teeth
[Sexual diamorphism] found in Plethodontid salamanders whereby males have elongated front teeth which sometimes protruded through the lip. These are used to deliver secretions from the [mental gland] during courtship behaviour.

Nasolabial grooves
Grooves found on the face of plethodontids that run from the nose to the mouth. During the breeding season they become elongated and a protuberance grows where the groove meets the lip. Thought to aid male salamanders to “smell” females in the area and avoid other males.

Nuptial Pads
Rough keratinized pads found on the chest or limbs of male caudates which allow them to maintain a grip onto the female during [amplexus].




Last edited by Mark; 24th November 2007 at 12:44. Reason: added more definitions
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Old 24th November 2007   #3 (permalink)
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YOu posted that pic a while back, right? I remember it, and I thought it was awesome. I'm glad you put it in with this definition--a picture's worth a thousand words!



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Old 25th November 2007   #4 (permalink)
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For some of the reproductive words, we have illustrations here:
http://www.caudata.org/cc/articles/sexing.shtml

That is a wild photo, Mark, what species is it?



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Old 25th November 2007   #5 (permalink)
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It's a male T.marmoratus in breeding garb.



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Old 12th December 2007   #6 (permalink)
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mental gland picture, courtesy of cameron (slimy2):
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Caudal fins, cloaca, dorsal fins, mental glands, nasolabial grooves, nuptial pads, papilae, premaxillary teeth (in CC amphib glossary)-cameronmetnalgland.jpg  



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Old 17th January 2010   #7 (permalink)
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Default Re: cloaca, papillae, etc

moved to completed section using Mark's definitions



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