Numerous specimens, collected along the whole coast, from near Rio de Janeiro to the mouth of the Plata, a distance of 1,100 geographical miles, were examined by me, and they all belonged to this class.
Itsasertz guztian zehar, Rio de Janeirotik Plata ibaiaren bokaleraino, 1.100 milia geografikoko distantzian bilduriko ale asko aztertu nituen, eta guztiak ziren mota honexetakoak.