PORTUNIDAE — STEPHENSON, WILLIAMS, LANCE 



9 



first figured (figs. 1 and 2) but it is indicated in the second (figs. 3 

 and 4). 



Arenaeus mexicanus @/A. cribrarius @ as the only two species in 

 the genus presumably must be analogous although there are numerous 



CALLlNFfT Fg 

 /'3~5\ 



Figure 2. — Model from basic GOWER ordination based on an oblique photograph taken 

 from the "southwest" (black spots = deviations greater than 100 scale units in the fourth, 

 fifth, and sixth axes; dotted lines = species groups). 



differences in tabular data (NFD 7) and they are some distance apart 

 on the models. 



Evidently, at most, one of the postulated pairs of analogous species 

 has clear claims to such a status. We believe it is desirable that 



