Modern Weights and Measurements of Jaguars

[peter]

DARK JAGUAR

Excellent information on the size of Pantanal jaguars. Many thanks on behalf of all.

It seems we have to adjust the general idea about the weight of Pantanal jaguars. Based on what I have (I read 'Jaguar hunting in the Mato Grosso and Bolivia', de Almeida (T), 2012 - 'The jungle hunter', Cavanagh (J), 2000 - 'Mammals of Suriname', Husson (AM), 1978 - 'The world of the jaguar', Perry ®, 1970 - 'Jaguar', Siemel (S), 1953 - 'Body mass and skull measurements in four jaguar populations and observations on their prey base', Hoogesteijn ® and Mondolfi (E), 1996 and Rabinowitz' great book about jaguars in Belize), I concluded adult (4 years and older) male jaguars in the Pantanal averaged between 95-110 kg., but it seems 110 kg. could be closer to the mark today.

Weightwise, adult male Pantanal jaguars almost compare to adult wild male Sumatran tigers. At 235-240 cm. in total length measured 'between pegs' and 310-315 mm. in greatest total skull length, Sumatran males are a bit larger, but the difference is limited. Sumatrans, by the way, are the only tigers (at the level of subspecies) where males and females overlap in size (weight, skull length and total length 'between pegs'). Anything known about jaguars in that department? 

I measured a few dozen jaguar skulls in museums and private collections and would be interested in recent information about skulls of Pantanal jaguars. If you find anything, please let me know. Reply