There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
In fact, this seems to be incorrect, because the data is to scarce. Let's explain.
In the new book of Dr Sunquist and his wife, "The Wild Cat Book" of 2014, they state that the largest jaguars are from Venezuela-Brazil and the smallest ones from Peru, check the image:
*This image is copyright of its original author
The problem is that this assumption is based in only 2 weights, from one male and one female captured in Peru, here is the image from the table of the Book of 2002:
*This image is copyright of its original author
And here is another source about them, from Hoogesteijn & Mondolfi (1996):
*This image is copyright of its original author
In the book "Wild Cats of the World" from 2002 (which is vastly superior than the new one from 2014), the Sunquist stated that Central American jaguars were the smaller, but that time based in more data, check it:
*This image is copyright of its original author
So, it seems that there is no evidence to support this new claim. However, like I mentioned before, there are no measurements from jaguars in the frontier between Mexico and USA, and we definitely need more data from Peru in order to get a conclusion.