FIGURE 4 in Morphological and molecular data reveal the cryptic diversity among populations of Aegla paulensis (Decapoda, Anomura, Aeglidae), with descriptions of four new species and comments on dispersal routes and conservation status

FIGURE 4. Schematic representation of the aeglid areola (inner, dotted) and cardiac area (outer, solid line) in dorsal view, showing the terminology and measurements used in the descriptions. "y", "x", anterior and posterior width of the areola, respectively; "h", areola length; "a", "b", anterior and posterior width of the cardiac area, respectively. DLL, TDL, dorsal longitudinal linea and transverse dorsal linea, respectively.