On the Morphology of the Myriopoda. 337 
Each elytron with a pitchy yellow line commencing in the 
middle of the base, and betore it reaches the middle emitting 
a branch to the side and another to the sutural angle. Ab- 
domen shining; the first to fourth segments with a few punc- 
tures at the base, and on each side two shallow somewhat 
cuneiform impressions ; the fifth segment sparingly punctured, 
smooth at the apex, and with the wswal white membranous 
border. 
Hab. Java (J. C. Bowring, Esq.). Brit. Mus. 
This species is interesting on account of the locality from 
which it comes. With the exception of two from Australia 
and one from Africa all the species are American. 
British Museum, 
Cromwell Road, London, S.W. 
October 17, 1883. 
XL.—On the Morphology of the Myriopoda. 
By A. 8. Packarp, Jun. * 
THE following notes have reference to the hard parts 
especially of the diplopod Myriopods. 
The Head.—In the Chilognaths, which are the more primi- 
tive and in some respects the lowest group of the subclass, the 
Pauropoda excepted, the structure of the head is on a much 
simpler type than in the Chilopoda. 
The epicranium constitutes the larger part of the head; it 
may be regarded as the homologue of that of hexapodous 
insects. Of the clypeus of Hexapoda there is apparently no 
true homologue in Myriopods; in the Lysiopetalid Chilo- 
gnaths there is, however, an interantennal clypeal region 
slightly differentiated from the epicranium and forming the 
front of the head. In the Chilopods there is no well-marked 
clypeus, only a short, narrow, transverse preantennal clypeal 
region, to which the labrum is attached. Meinert, in his 
valuable and painstaking work on Myriopods, designates what 
we here call the epicranium the lamina cephalica; the divi- 
sion sometimes indicated in front next to the antenne he calls 
lamina frontalis discreta. 
The labrum in the Chilognaths is a short but broad sclerite, 
very persistent in form and not affording family or generic 
* From the ‘Proceedings of the American Philosophical Society,’ 
Sept. 1883, p. 197; read June 16, 1883, 
