1983, hard cover, 27.5 x 24.5cm. 213p. 39 colour plates covering more than 100 specimens. 141 b&w; plates covering over 190 specimens + numerous line drawings
Summarizes the most interesting representatives of the group. Many rare and extraordinary beautiful illustrations, both in colour and black & white.
Contents include: Anatomy, Phylogenesis and Clasification, Feeding habits, Sexual .characteristics.