ON THE OCCURRENCE OF GLOMERIS PERPLEXA, LATZ. 87 



ON THE OCCURRENCE OF GLOMERIS PERPLEX A, 

 LATZ., NEAR EDINBURGH ; WITH A REVISED 

 LIST OF FORTH MYRIAPODS. 



By William Evans, F.R.S.E. 



When searching for mites and other small creatures in 

 ground moss on the banks of the Esk below Hawthornden, 

 Midlothian, on 17th November 1917, I shook from a tuft of 

 Dia'anum scopariinn a small Pill-millipede, which I had no 

 doubt was Glomeris perplexa, Latz. Mr R. S. Bagnall, 

 who has taken the same Diplopod in the north of England 

 and in the Clyde Area, has seen my specimen and confirms 

 the identification. Authorities differ as to whether this little 

 Glomerid is a distinct species, or a form of either G. margi- 

 nata or G. connexa. In his " Preliminary Check List of the 

 British 'Myriapoda'" {Joiirn. Zool. Research, October 1918) 

 Bagnall gives it specific rank, which I can well believe it 

 deserves. It is much smaller than the only other British 

 representative of the genus, G. marginata, and dark purplish 

 brown with a double row of yellowish marks along the back 

 and some on the sides. So far as I know it has only been 

 recorded once before from Scotland, namely from " Clyde " 

 as alluded to above. 



Since my paper on " The Myriapods (Centipedes and 

 Millipedes) of the Forth Area" was published in 1907 

 {Proc. Roy. Phys. Soc, Edin., xvi. and xvii.), great advances 

 have been made in the study of the group ; many species 

 have been added to the British List, genera have been split 

 up, and other changes introduced. No one has done more 

 to increase the list than Mr R. S. Bagnall, whose investiga- 

 tions on the Symphyla have been so fruitful in new species. 

 As already mentioned, he has recently issued a " Preliminary 

 Check List" of British Myriapods, and it seems desirable to 

 revise the Forth list in accordance therewith, incorporating 



LI 



