Notes on Myriapoda. 199 
with less than seventy body-segments, the latter those with 
more than seventy. Inthe former subfamily he places Poly- 
zonium germanicum, and gives a detailed description of the 
genus and species, devoting the whole of his plate xvi. 
(figs. 199-210) to the latter. Since Latzel’s time further 
systematic work has been done in this group ; some indication 
of ifs extent may be gathered from Verhoeff’s werk on 
German Diplopoda, (5) p. 23. The same author criticized 
Latzel on Polyzonium as early as 1898, and gave (4) an 
account of the species which the present note records, together 
with a figure of the gonopods (his plate vii. fig. 11). As 
M. Brélemann has pointed out to me in /ité., we find that in 
the anterior gonopod the coxal lobe (L in the figure cited), 
which in the animal itself is a definite structure quite easily 
seen, 1s not represented at all clearly in Verhoeff’s figure. 
That this may be due more to incorrect reproduction than to 
the fault of the author is shown by Verhoeff’s statement in 
the text (loc. cit.) :—“* Gegeniiber den andern beiden Arten ” 
[i.e., P. bosniense, Verhoetf, and P. transsilvanicum, Ver- 
hoeff] “ist germanicum ausgezeichnet durch (Abb. 11 ) das 
emporragende 3. Tarsalglied, dessen aafragende Spitze EH, 
den Nebenlappen, dessen Rand in feine Spitzchen zerschlitzt 
ist (nicht ‘gekerbt’) das deutliche Femoralglied und den 
Hocker L des Kndlappens der Hiiften, welcher kaum vorragt 
und innen etwas eckig ist.” 
Verhoeff, in a later work (5) already quoted, gives an 
instructive account of the comparative anatomy of the group 
to which Polyzonium belongs. Sinclair (3) and Pocock (2) 
have both dealt briefly with the Colobognatha in English, 
and the former gives a useful figure of Polyzonium germani- 
cum showing the general proportions of the whole animal. 
Field Notes and other Observations. 
Polyzonium can be distinguished readily in the field from 
all other British genera by its characteristic semicylindrical 
shape ; whereas the dorsal surface of the animal is convex 
from side to side, the ventral surface is practically flat. 
Latzel gives the dimensions of P. germanteum as 5-15 mm. 
long and 1°1-2 mm. wide. 
The walking-legs perform their work with the same wave- 
like motion that is noticeable in so many other millipedes. 
When disturbed the animal curls itself up like a clock- 
spring, and generally remains quite a long time in that 
position. 
Since this species is widely distributed on the continent, it 
is interesting to take it first in Britain in that part of England 
