INTRODUCTION. 
In dealing with the Central-American Araneidea, the subject was divided (see 
footnote to page 1) into two parts: I. to include descriptions and figures of those 
species considered to be new to science, taken according to my own convenience and 
other circumstances ; and II. a Systematic List of all the species known to occur within 
the region, with their geographical distribution. So far as this arrangement has been 
carried out, the present volume contains the species worked out by myself, according 
to the two appended Lists: (i.) a Systematic List of the new Species described and 
figured, numbering 417; and (ii.) a List of those Species identified by myself as already 
known, numbering 139. ‘The volume contains 309 pages of letterpress and thirty-nine 
coloured plates, the drawings for which have been prepared by Mr. A. T. Hollick, 
and transferred to stone by Mr. E. Wilson. 
OCTAVIUS PICKARD-CAMBRIDGE. 
August, 1902. 
