This section lists every family-group name placed on the Official List of Family- 

 Group Names and the Official Index of Rejected and Invalid Family-Group Names 

 in Zoology. Names on the Official List are in bold type and those on the Official 

 Index are in non-bold (roman) type. The Direction or Opinion (0.) number under 

 which each name was placed on the Official List or Index is given at the end of 

 that entry. Bibliographic references to Directions and Opinions are given at the 

 end of this volume. 



