Myr. 1 
XII. MYRIOPODA AND PROTO- 
TRACHEATA. 
BY 
Albert William Brown, B.A., F.L.S. 
Christ Church , Oxford. 
MYRIOPODA. 
I. Titles 2 
II. Biology. 
1. Morphology ... 5 
2. Anatomy & Histo- 
logy 6 
3. Embryology & Tax- 
onomy .... G 
4. Biology .... 6 
Page 
Biology ( continued ). * 
5. Nomenclature etc. . 6 
III. Distribution .... 6 
IV. Systematic. 
Chilopoda 8 
Pauropoda (vacant). 
Diplopoda 9 
PROTOTRACHEATA. 19 
CONTENTS. 
Page 
INTRODUCTION. 
There is little for the Recorder to say by way of introduction this year. 
The Record is considerably larger than that of 1896, but the increase in 
the number of titles is entirely due to the inclusion of a number of short 
papers bearing on the question, “Are the Arthropoda a natural group?” 
[See Biology.] The Recorder has endeavoured to make the section Dis- 
tribution more exhaustive, and this, in addition to the greater number of 
species described, has helped to lengthen out the later part. 
As in 1896, so now, the bulk of the literature is contributed by a few 
investigators, and is almost entirely occupied with specific and faunistic 
lists. The Diplopoda claim by far the greater attention, whilst the Pauro- 
poda once more pass unnoticed. 
Taking the papers dealing with the Biology of the group, attention must 
be first drawn to Heymons’s (30) article on the segmentation and structure 
