FROM THE ENGLISH LAKE DISTRICT. 365 



Dr. Penarcl (' Faune rbizopoclique &c./ p. 322) as F. higihhosa. This latter, 

 now a variety o£ P. compressa {P. compressa,, var. higihhosa), Penard regards 

 as occnrring oiil}" in large lakes. 



8ize : length 250/*, width 200 yit, depth 160 /x.. Cash gives for P. com- 

 jor^s^a, length 130-150 /u,, breadth 100 /* ; while Penard gives for P. hicfihhosa^ 

 length 250 fi. 



Nebela bohemica, Tardnek, ' Moiiographie der ISeheliden Bohmens ' (in 

 AhJiund. der kbn. B'dhm. Gesell. Wiss., 1882), p. 34; Penard, ^ Faune 

 rhizojyodique S,-c.,' p. 351. 



Amongst collections containing H. collar is in quantity, a form frequently 

 occurs which appears to be this species. Compared with JV. collaris it is 

 somewhat broader in proportion. The borders of the mouth appear straight 

 in the broad view of the test, and without the lateral notches characteristic of 

 N. collaris in narrow A'iew. Further, a distinct area surrounding the mouth 

 is without the covering of plates and appears as a clearly defined, but not 

 thickened lip. Its size varies up to 128 yu- in length by 77 ix in breadth. 



Nebela militaris, var. tubulata, var. nov. (Plate 50. figs. 9 & 10.) 



This variety is occasionally found amongst sphagnum, but never in large 

 numbers. I have met with it, not only in this district, but also near Sheffield. 

 The test is generally very regular in form, and has the shape of a somewhat 

 compressed round-bottomed flask with prominent neck, which is of uniform 

 width throuohout and about one-half the total length of the test. The 

 mouth is bordered by prominent " lips " with thickened margins, convex in 

 broad view of the test, and showing a distinct notch in narrow view. The- 

 surface structure is like that of typical forms of N. militaris. 



Size : length 64 jjl, breadth 32 /a, length of neck about 32 /i. 



The relationship of this form is rather doubtful, and at present it seems 

 best to regard it as a variety of N. militaris, Penard. The general shape 

 suggests N. lageniformis, Penard, and JV. harhata, Leidy. From these, how- 

 ever, it differs distinctly, not only in size, being very much smaller, but also 

 in the characters of the mouth and lips, in which respects it approaches 

 iV. militains. From typical examples of this last, again, it is readily distin- 

 guished by its general shape, the characteristic parallel-sided neck, and 

 slighter build. 



Heleopera petricola, Leidy, ' Freshwater Rliizopods oj JS. America/- 

 p. 165 ; Penard, ^ Faune rJiizopodique Sfc.,'' p. 382. 



This species occurs very commonly in sphagnum. Many of the specimens 

 found exhibit the violet colour mentioned by Penard. 



