XII. MYRIOrODA AND PROTOTRACHEATA. 
2 Myr. 
of the Myriopodan body, and to his other discussion of the abdominal 
appendages (29). Cook’s “ Brandtia ” contains, amongst others, two in- 
teresting short papers, one on a spinning Diplopod (21), and the other 
on the larvae of Stemmatoiulus (23). Duboscq deals with the vessels of 
Scolopendi'idce (26), and CuIsnot incidentally with the lymphatic organs 
and corpuscles of Myriopoda (25). Nemec has described the structure of 
the Diplopodan eye (42), and Willem the coxal glands of Lithobius (65). 
Nothing dealing with the embryology of the group has been published 
during the year, save a short paragraph on egg-cleavage by Claypole (13). 
Janet (32) gives a list of Myriopoda commensal with Ants, and L£ger 
(40) has described some new Coccidia from the digestive canal of Myriopoda. 
Silvestri (51) has revised, with additions, the classification of the Diplo- 
poda published last year in “ I Diplopodi.” The revision takes the form of 
a list of Orders, Tribes, and Families, and should be consulted in con- 
nection with the work mentioned. 
In the course of his systematic papers, Verhoeff deals incidentally with 
several points, amongst which may be mentioned the morphology of the 
abdominal appendages (58), the comparative morphology of the first pair of 
legs of Julidce (57), the comparative morphology and physiology of the 
copulatory apparatus of Heteroporatia (61), the copulation feet of Brachy- 
desmus (60), and the vulva of Lysiopetalidce (60). 
Brolemann (8) gives an account of the structure and systematic position 
of the peculiar Myriopod, Scolopendropsis bakiensis. 
To give a list of the systematic papers would obviously be out of place 
here, but a few of the more important may be mentioned. Brolemann 
has enriched our knowledge of the Myriopoda of Algeria (7) and France 
(10). Silvestri has described a great number of new species and genera 
from Sicily (53), Mexico (48), Ecuador (49), Argentina (48), and Somaliland 
(50), and some miscellaneous collections (52 & 54). Pocock (451 has 
published a valuable contribution to the literature of Oriental and Aus- 
tralian Platyrrhachidce. Lastly, Verhoeff continues his series of papers 
on Pala3arctic Myriopoda (51, & 59-64). 
I. TITLES (MYRIOPODA). 
1. Anon. Are the Arthropoda a natural group? Summary of opinion. 
Nat. Sci. x, pp. 115-117. 
2. Attems, C. G. Myriopoden. Abh. Senckenb. Ges. xxiii, pp. 473-536, 
pis. xxi-xxv. 
Abstract in Zool. Centralbl. 1897, p. 693. 
3. — — . Beschreibung der von Dr. Stuhlmann in Ost-Afrika gesam- 
melten Myriopoden. Mt. Mus. Hamburg, xiii, pp. 21-42, 1 pi. 
4. . Ergebnisse der Hamburger Magalhaensischen Sammelreise, 
herausgegeben vom Naturhistorischen Museum zu Hamburg, 2 te Lief. 
2. Myriopoden, 8 pp., 4 figg. in text. 
5. Bernard, H. M. Are the Arthropoda a natural group? Nat. Sci. 
x, pp. 98-100. 
6. Brandicourt, V. Quelques conseils pour la recolte des Myriapodes. 
Bull. Soc. Nord France, xiii, pp. 41-44. 
7. Brolemann, H. W. Julides d’Alg<$rie. Ann. Sci. nat. iv, 1896, 
pp. 253-276, pis. iii & iv. 
Abstract in J. R. Micr. Soc. 1897, p. 531, 
