Pehhaps th e representation o f remarkable varieties are often as necessary
fo r th e illustration o f a genus as th e tru e sp ecies, and b e in g u nw illin g to
break, by th e introd uc tion o f th em , th e con n exion o f regularly established
individuals, we h ave adopted th e mode o f th row in g in to an ap pend ix a few
varieties which w e ha v e th o u g h t essential for th e purposes o f information ;
and as man y persons may differ from ns, con side ring th em as species rather
than varieties, it would h a v e b e en d efe ctiv e w h o lly to ha v e omitted th em .
T o th e se supplementary Plates trivial names will be fou n d attached, more
from th e wish o f p rev entin g con fu sion, th an from th e idea o f th e ir b eing
en titled to a specific ep ith et.
