It took the spouses five years to discover that their tastes were divergent and their tempers incompatible.
Two divergent views have been held as to the nature of the original hexapod stock.
In external form and appearance the Hydrozoa exhibit such striking differences that there would seem at first sight to be little in common between the more divergent members of the group. Nevertheless there is no other class in the animal kingdom with better marked characteristics, or with more uniform morphological peculiarities underlying the utmost diversity of superficial characters.
With regard to the origin of this class two divergent views are still held.
Divergent views have been held by different authors both as regards the nature of the cormus as a whole, and as regards the homologies of the different types of appendages borne by it.