1 82 Freshwater Rhizopoda and Heliozoa from Kinder Scout. 



Ditrema flava, Amphitrema wrightianurn, were entirely absent 

 from the material examined ; while Sphenoderia lenta, Assulina 

 semimilum, Amphitrema stenostoma occurred in only one or two 

 gatherings, and then in very small numbers. 



Hyalosphenia papilio, though plentiful in No. 6, was absent 

 from the rest of the material, and, so far as I have been able 

 to notice, it is generally a rare species in North Derbyshire 

 and South Yorkshire,* though common in Scotland, f the Lake 

 District and elsewhere. 



Nebelas were not as plentiful as is usual in sphagnum. 

 Typical N. coUaris was represented by only a few individuals, 

 N. tincta and N. flabellulum occurred in larger numbers, while 

 N. tubulosa was quite common in those gatherings in which 

 it occurred. Heleopera rosea was fairly common, to the ex- 

 clusion of H. petricola. It is one of those species which seems 

 more abundant in upland regions (see below), 



Capsellina timida and Euglypha denticulata% are less con- 

 spicuous species found in moss. The records of these forms 

 add to their known distribution. 



Pyxidicula sp. This species somewhat resembles P. in- 

 visitata Awerintz, but differs in some important respects. 

 Without further study, I hesitate to describe it as a new species, 

 and this applies, also, to a Nebela found associated with 

 N. tubulosa. 



On comparing the above records with those obtained from 

 Scotland (q.v.) the Lake District and elsewhere, it would appear 

 that the following species generally occur more plentifully 

 in upland bogs than in similar situations at lower levels, 

 though in what way they may be adapted to greater altitudes 

 is difficult to imagine. 



Nebela carinata^ Heleopera rosea 



,, marginata^ Placocysta spinosa^ 



,, flabellulum Amphitrema stenostoma . 



Hyalosphenia papilio ,, wrightianurn^ 



More exact records on this point are required, however, 

 before very definite conclusions can be drawn. 



* See ' Freshwater Rhizopods from the Sheffield District,' ' The 

 Naturalist,' 1910, p. 92. 



I See ' A contribution to our knowledge of the Freshwater Rhizopoda 

 and Heliozoa of Scotland,' ' Ann. of Scot. Nat. Hist.', 191 1, p. 228. 



J Recently described and figured in 'The Scottish Naturalist,' 1912, 

 p. Ill, plate V. 



§ Absent from the Kinderscout material. 



Naturalist, 



