Araclm. 1 
XI. ARACIINIDA. 
BY 
Albert Wm. Brown, B.A., F.L.S., 
Christ Church , Oxford. 
Introduction 
CONTENTS. 
Pago 
1 
I. Titles 3 
II. Biology: Subject Index. 
1. General 11 
2. Scorpiones 11 
3. Pedipalpi 11 
4. Solifugse 11 
5. Pseudoscorpiones ) , , N 
G. Opilionos } < vacant >- 
7. Aranoa) 11 
8. Acari 12 
9. Tardigrada 12 
Page 
I. Distribution. 
A. Geographical . 
.... 12 
B. Parasitic . . 
.... 17 
J. Systematic. 
Scorpiones . . . 
.... 17 
Pedipalpi . . . 
.... 18 
Araneoe .... 
.... 19 
Solifugae . . . 
.... 42 
Pseudoscorpiones 
.... 43 
Opilioncs . . . 
Tardigrada. . . 
.... 43 
.... 44 
Acari .... 
.... 44 
INTRODUCTION. 
An analysis of the subjoined list of papers reveals a remarkable increase in 
specific descriptions during 1897, the systematic part of this Record being 
more than twice as large as that of 1896. The reason for this is two- 
fold. The Recorder was compelled owing to the short time given him in 
which to prepare last year’s Record to omit certain large papers — e.g. 
Cambridge, O. P. (15), in the Biologia Centrali-Americana — which have 
added to the bulk of the present issue. The second cause of increase is 
to be found in the publication of large Systematic works of which Part i, 
vol. ii, of Simon’s “ Araigndcs” (21) is the most important. Even when 
allowance is made for these the Record still shews a greater number of 
papers than its predecessor. The concluding part of Becker’s “Arach- 
niaes de Belgique” (5) and some parts of Berlese’s “Acari, Myriop. et 
Scorp. ital.” (7) were published in 1896, but were not available for the 
Recorder till this year. 
, Acloque (1) in a paper on the relation of Insects to other Arthropods 
refers to the Arachnida. Of somewhat similar bearings are the series of 
papers entitled “Are the Artliropoda a natural group?” Jaworowski (56) 
