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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 101 



particularly of immature specimens, from flotsam and turtles is 

 available for study. 



Similar trends are not apparent in the specimens of Planes cyaneus 

 or Pachygrapsus marinus, but the relative growth of these two species 

 cannot be reliably demonstrated from the material studied. 



Figure 3.— Carapace growth in males of Planes minutus (a-h), Planes cyaneus (i-n), and 

 Pachygrapsus marinus (o-t). The figures denote the U.S.N.M. catalog numbers and, in 

 parentheses, the carapace lengths in mm. 



