Fig. 2
From: Sightings trends and behaviour of manta rays in Fernando de Noronha Archipelago, Brazil
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs41200-021-00204-w/MediaObjects/41200_2021_204_Fig2_HTML.png)
Images showing distinguishing morphological characteristics of the ventral surface (top), dorsal surface (middle) and the caudal base with or without the calcified residual spine bottom), between manta ray species: a M. birostris, b M. alfredi and c individuals sighted at Fernando de Noronha Archipelago. Illustrations (a) and (b) modified from Marshall et al. (2009)