Regional brain morphometry and lissencephaly in the Sirenia.

  title={Regional brain morphometry and lissencephaly in the Sirenia.},
  author={Roger Reep and Thomas O'Shea},
  journal={Brain, behavior and evolution},
  volume={35 4},
Neuroanatomical structure was examined in the brains of West Indian manatees (Trichechus manatus) using computer-based morphometric methods. Although manatees have a small relative brain size, volume estimates of the major brain regions indicate that the telencephalon comprises 71% of total brain volume and is 90% cerebral cortex. These values are comparable to those seen among a diversity of taxa having large relative brain size, including many primates. Manatee brains also exhibit well… CONTINUE READING