kingsnake.com - reptile and amphibian classifieds, breeders, forums, photos, videos and more
return to main index
follow us on facebook follow us on twitter follow us on YouTube link to us on LinkedIn
Click here for LLL Reptile & Supply  
click here for Reptile SuperShow
Live Reptiles, Cages, Feeders, More...
Online/Stores/Expos - LLLReptile.com
Locate a business by name: click to list your business
search the classifieds. buy an account
events by zip code list an event
Search the forums             Search in:
News & Events: Herp Photo of the Day: Rattlesnake Friday . . . . . . . . . .  Kentucky Herp Society Meeting - Nov. 19, 2017 . . . . . . . . . .  Kansas City Reptile Show - Nov. 19, 2017 . . . . . . . . . .  All Cleveland Reptile Show - Nov. 19, 2017 . . . . . . . . . .  Edmonton Reptile & Amp. Society Meeting - Nov. 21, 2017 . . . . . . . . . .  NY Metro Reptile Expo - Nov. 27, 2017 . . . . . . . . . .  ReptiCon Orlando - Dec. 02-03, 2017 . . . . . . . . . .  ReptiCon Houston - Dec. 02-03, 2017 . . . . . . . . . .  Nebraska Herp Society Meeting - Dec. 02, 2017 . . . . . . . . . .  Jacksonville Herp Society Meeting - Dec. 02, 2017 . . . . . . . . . .  Hamburg Reptile Show - Dec. 02, 2017 . . . . . . . . . . 

a point of view or what does it take to be...?


[ Follow Ups ] [ Post Followup ] [ The Taxonomy Forum ]

Posted by Wulf on February 14, 2003 at 05:28:45:

Hi folks,

thanks to Linnaeus we today have a quite well organized system in systematics. But on the other hand there are some more or less uncertain definitions of what makes a genus, a species, a subspecies or only a race.

As for the family of pythonidae i.e. Stimson & Underwood (1990) lumped together almost (except Aspidites) all indo-australian pythons into the genus Morelia but this genus already had a key as well as others genus did. Other taxonomists seperated them again and Kluge (1993) for instance ignored the validity of Liasis fuscus but placed him into Liasis mackloti as a race (if you have a closer look at these two you'll find out a lot of differences, including locality).

So there were different points of view and I guess all of them somehow had their right.

But what makes specimen to a subspecies? Is it only a perhaps remote locality where it occurs or maybe a slightly different morphology (i.e. a second pair of parietals or a higher ventral or subcaudal scale count; +-2 or 3 scales) ?
What is a race worth in taxonomy and how would one describe it?

What is a key to a genus worth when specimen placed into this genus all show character sets that should be abesent in order to the key?

Is an posterior parietal always a posterior parietal or could it be just a enlarged temporal scale?

As WW already said..."Taxonomy is a matter of evidence...". But what is evident when things chance?

I'm looking forward to your answers ;-)

Cheers,
Wulf


Follow Ups:




[ Follow Ups ] [ The Taxonomy Forum ]