The shiny, two-part covering 'shield', or carapace, bears a central groove from head to tail and a division from side to side into two valves, front and rear. Around the edge of the carapace is a fringe of limb and appendage endings
The shiny, two-part covering 'shield', or carapace, bears a central groove from head to tail and a division from side to side into two valves, front and rear. Around the edge of the carapace is a fringe of limb and appendage endings