What is the difference between mantas and mobulas?
Mantas and mobulas (also known as “devil rays”, of which there are 9 species) are similar in form, sharing paddle-shaped cephalic lobes and gracefully curved pectoral wings. Mantas grow much larger than mobulas. Mantas reach widths of at least 22 feet (6.7 metres), while most mobulas are 3 to 10 feet (1 to 3 metres) across. Mantas and mobulas are most readily distinguished by the position of the mouth: in Mantas, the mouth is terminal (located at the front of the head), while in mobulas the mouth is subterminal (located underneath the head, as in many sharks).