474 Dr. & the Rev. S. Graham Brade-Birks — 



J. C. V.-S. ; under flints in chalk-hole near the sea, Wells- 

 on-Sea, Nk., St. J. M., ix. 1918 ; garden, juniors only, 

 Heacham, Nk. ; ? (junior), Ringstead Downs, Nk. 



As no other species of this genus is known to occur in 

 Britain, it is assumed that all the specimens recorded belong- 

 to Leach's form. 



Brachychceteuma bradece (Brolemann and Brade-Birks). 



A full description of this animal is given in the seventh 

 paper of this series (Brade-Birks, Dec. 1917). 



We took five specimens referable to the genus Brachy- 

 chceteuma in Messrs. Chilvers and Sons' nurseries, Heacham, 

 Nk., under boxes on fairly hard ground. Dissection of the 

 male proved that B. bradece was present, but upon the dissec- 

 tion of a female it was found that the vulvas were apparently 

 identical with those of the type of B. quartum, Brade-Birks 

 (Oct. 1918) ; this seems to throw doubt upon the validity of 

 quartum, but we must await the discovery of more material 

 from the Bakewell district of Derbyshire to confirm or dispel 

 this suspicion. 



Poly.venus lagurus (LinneV). 



Lafzel (1884, p. 74) gives the length of this species as 

 2*5-3"2 mm. It was recorded by Stainforth (1919) from 

 Barton-on-Humber, where it occurred in some abundance on 

 the 10th May and 15th June, 1919, on the ends and sides of 

 the squared beams forming a very low parapet to the culverts 

 that cross the ditches in Dam Road not far from the Humber 

 shore. 



Class Chilopoda. 



Monotarsobius duboscqui (Brolemann). 



Under bark, Heacham, Nk. ; garden, Heacham, Nk. ; farm 

 precincts, inland, Heacham, Nk. ; under stone near Sand- 

 ringham, Nk. 



Monotarsobius crasslpes (L. Koch). 



Harlaxton, Lns., J. C. V.-S. ; several, outskirts of wood, 

 between North Wooton station and Castle Rising, Nk. ; 

 ? Messrs. Chilvers and Sons' nurseries, Heacham, Nk. ; 

 PSnettisham, Nk. 



