44 (43) Carapace with 5 teeth on anterolateral margin 45 



44 (43) Carapace with 9 teeth on anterolateral margin 47 



Figure 79. — Anterolateral border of portunid 

 carapace: A, 5 teeth; B. 9 teeth. 



45 (44) Distal articles of fifth legs not paddlelike 

 45 (44) Distal articles of fifth legs paddlelike . . . . 



Carcinus maenas 

 46 



Figure 80. — Fifth leg of portunid crab; 

 A. not paddlelike; B. paddlelike. 



46 (45) Anterolateral teeth similar; dactyl of 

 swimming paddles broadly oval; male 

 abdomen oblong Ovalipes ocellatus 



Figure 81. — Ovalipes ocellatus, 

 carapace and eyes. 



46 (45) Anterolateral teeth dissimilar, fifth 

 an elongate lateral spine; dactyl of 

 swimming paddle broadly pointed; 

 male abdomen triangular Bathynectes superbus 



Figure 82. — Balhynectes superhus, 

 carapace and eyes. 



29 



