322 Dr. & tlie Rev, S. Graliani Biad.i-Birks on 



n proper exploration of our English caves, and this note may 

 serve as a reminder to naturalists who visit caves for the 

 purpose of studying otiier branches of science. 



II. Detailed Records'. 



Class DIPLOPODA. 



Subclass C HI LO G N AT HA. 



Family Glomeridae, r.each, 1814. 



Subfamily G lomejrin^, Verhoeff, 1910. 



Genus GlOMERIS, Latreille et Leach. 



1. G. viarginata (Villers, 1789). 



10-20 mm. 



This is the common pill-millipede. It is black dorsally, 

 but the pleurotergites are edged with white. 



■^Cave Dale, R. S., in a recent year {J.), G. l^l-iS ; ''^'Castle- 

 ton, R. S.J vi./13 ; *Dove Dale, R, S., J. W. J., C. R. B., 

 25/V./16; near the R. Dove, ourselves, 1916; Bakewcll 

 district, ourselves, 1918 ; one example, Manners Wood, near 

 Bakewell, W. B. & S. G. B.-B., 6/vi./18. 



In addition to the above examples we have examined 

 -specimens from Millers Dale which do not appear to be 

 typical. In spirit-specimens the dorsal surface of the body 

 exhibits a row of light spots on either side of the middle line, 

 due to the fact that the lateral parts of each j)leurotergite are 

 marked by definite light oval areas. The dimensions are the 

 same as those of the typical form. We think it inadvisable, 

 however, to establish a new variety on the material at our 

 disposal until, at any rate, we have made a detailed study of 

 the English representatives of the genus. 



Seven examples, ^lillers Dale, R. S.^ 17/vi./17. 

 J'ljpes. 1302, Brade-Birks collection. 



2. G. marginata perplea;a, Latzel. 



6*5 mm. 



At present we think it advisable to treat this foiin as of 

 subspecific rank. Mr. Bagnall says (l) of this ajiimal, " I 

 cannot think that it can be a form of marginata, and connexa 



' The typical length of th« species is given in each case as a guide to 

 those interested in the group. Where the dimensions are not our own, 

 We are indebted to various authors. 



