198 Rev. S. Graham Brade- Birks— 
XXVI.— Notes on Myriapoda.— XXI. Colobognatha, an 
Order of Diplopoda (Millipedes) new to Britain, represented 
by Polyzonium germanicum (Brandt). By the Rev. 5S. 
GraHsaM BrapbeE-BirKs, M.Sc., Lecturer in Zoology and 
Geology, S.K. Agricultural College, Wye, Kent. 
On the occasion of a visit that the Lecturer in Agricultural 
Zoology here—Mr. C. A. W. Duffield—and the writer paid 
to the Juniper Wood, Wye, on the afternoon of the 24th of 
October, 1919, I took a millipede referable to the genus 
Polyzonium, Brandt, 1834. It appears that the order to 
which this genus belongs has been unrepresented hitherto in 
the faunal lists of the British Isles. 
During November 1919 Mr. Duffield and I took a number 
of specimens of the same animal on subsequent visits to the 
wood, and one specimen was also taken there on the 13th of 
December. 
Upon the dissection of some male specimens for the exami- 
nation of secondary sexual characters of taxonomic importance 
and their comparison with those given by Latzel (1) in his 
fivures of the species P. germanitcum (Brandt, 1831), it was 
found that some points of agreement were very noticeable. 
At the same time I felt doubtful about the diagnosis, and 
thought it advisable to send a male specimen to Monsieur 
Henry W. Brélemann, the eminent French myriapodologist, 
who, with a courtesy now proverbial in his circle of English 
friends, made a careful examination of the animal and a 
sketch of the gonopods, together with a.note on one of 
Verhoeff’s papers (4). This assistance, submitted to me in 
litt., makes my present task a light one, and I here express 
my best thanks to M. Brélemaun for his valuable help. 
M. Brélemann definitely referred the male I sent to him to 
the species Polyzonium germanicum, a member of the family 
Polyzoniide, Gervais, 1844, order Colobognatha, Brandt, 
1834. Latzel (1) describes the Colobognatha an order 
differing from the Chilognatha in the strueture of the mouth- 
parts, which are modified here to a greater or less extent with 
the suctorial function of the rostrum into which the circum- 
oral region is produced. Latzel adds an account of the family 
Polyzontide, which he divides into two subfamilies—the 
Platydesmiaand the Dolistenia*,—the former including genera 
* Latzel (oc. cit.) tells us that Brandt had previously subdivided the 
family into Ommatophora and Typhlogena, the former containing the 
genera with eyes, the latter including all without. 
