On a remarkable sexual dimorphic trait in the Characiformes related to the olfactory organ and description of a new miniature species of Tyttobrycon Géry (Characiformes: Characidae)
Fig 4
Gross brain morphology of Tyttobrycon shibattai MZUSP 125269, paratype.
(A) mature male, 16.6 mm SL; (B) mature female, 19.8 mm SL; (C) juvenile specimen, 12.3 mm SL. From left to right: dorsal, lateral and ventral views. Scale bar 1 mm.