Fig. 28. A. obtusus. Variation in morphology of tip of endopod 

 of second pleopod. A-H, ventral views. From Williams (1970). 



TABLE 2 



SOME DIFFERENCES BETWEEN TWO SPECIES OF ASELLUS (males only) 



(From Williams 1970, Table 5) 



* difference between means highly significant in all comparisons (by "t" 

 test, P =<0.001) 



34 



