Crab species found to have asymmetrical male and female reproductive structures

Researchers have recently identified and described a new genus and species of xanthid crab found in Okinawa Island, Ryukyu Islands, Japan. Named Mabui calculus, it is the first among the 7,800 species of known crabs to have strongly asymmetrical male and female reproductive structures.

from Top Environment News -- ScienceDaily https://ift.tt/2TOSspr