Language: English
The first part of this work deals with eight species belonging to the families Pteropidae, Rhinopomatidae, and Emballonuridae. lt also includes a general introductinn, resume of the literature, scope of the work, acknowledgements, ecological conditions in the area of study, material and methods, explanation of abbreviations, methods of measurements, etc.
The discussion and summary was published in a later, second study, that covered an additional three families..