20 MICROSCOPIC FORMS IN FRESH WATER. 



"The slide you sent me contains what I believe to be a variety 

 of Pseudoeunotia flexuosa (Breb) Grim equal to Eunotia flex Kutz. 

 It is larger than any described and figured, and no figures are re- 

 corded as giving the outlines quite as flexuosa as in the specimens. 

 De Toni thus describes it — Connective face elongate, long, straight, 

 exactly linear, connective membrane delicately striate, valves linear, 

 twice or three times lightly flexuosa with inflated cai)itate apices, 

 rounded, obtuse and with delicate transverse stria? 11-12 in 10 ui 

 distinctly punctate. The var. bic^apitata (Green). If the specimen 

 is not this variety it is (piite neta- it. The stria^ are about 

 11 in 10 UI '^iid distinctly punctate. The valves are more robust 

 and more curved than in the figures. The slide is of interest to 

 me as I have never seen forms exactly Id^e them before. The 

 form is said to be common in Euro])e. Ehrenburg gives forms 

 from Nova Scotia which resemble but do not quite cori'espond. I 

 think, however, we are safe in saving that the specimens are a 

 species of Pseudoeunotia flexuosa." 



I will conclude this paper by a (piotation from my notes of two 

 years ago that may interest some. 



Saw an alanopsis first entangled apparently among the alga' 

 and struggling violently as if to free itself, which it at length did! 

 Then it fluttered about for a while, then sat down, facing my eye, 

 looking for all the world like an owl sitting on a branch and sigh- 

 ing, for it appeared to take a long breath like a sigh once in a 

 while. Then at last it began to struggle steadily and then it took 

 a slow gradual somersault over backwards and went entirely out of 

 its shell, leaving it on the branch, and swam slowly away, very 

 clear, pale, white and transparent. 



