305 



thulean, then we have, at all events, a perfectly distinct and novel 

 fresh-water rhizopod, and in that respect sufficiently interesting. 



Prof. E. Perceval Wright recorded the occurrence in a new 

 situation of the new rhizopod, Cystopliri/s HaecTceViana (Arch.), the 

 first specimens met with by Mr. Archer being from Gallery, these 

 from near Carrig mountain. The groups were often fewer than 

 in the original specimens, but even the smaller examples were 

 sometimes met with, having encompassed a comparatively large 

 diatom with a thin stratum of its delicate sarcode body, the cellu- 

 lar structures, however, retained the while, giving the diatom the 

 appearance, viewed under a low power, of being surrounded by 

 merely a thin stratum of independent globular cells. 



1\th February, 1870. 



Mr. Archer showed the seemingly rare and very unique looking 

 infusorian, Coenomovplia medusula. This is a very singular little 

 form, somewhat medusa-like iu figure, but asymmetrical and with 

 a long posterior tail-like process. Its agile and rapid movements 

 render it difficult to follow and examine, hence the figures in 

 Pritchard — it may be assumed taken " flying," — are, perhaps, con- 

 tradictory and not very graphic. This pretty form would well 

 deserve to be worked out more accurately as regards its form and 

 structure ; it does not appear to be known (or at least well known) 

 to Stein. 



Kev. E. O. Meara showed Epithemia globifera, Heiberg, " De 

 danske Diatomaceae " (p. 103, fig. 22). Heiberg assigns this 

 species to the brackish-water forms, but adds the following remark, 

 " Hitherto found only in Hasmark Moor in Northern Eyen ; in- 

 asmuch as this moor contains both salt and fresh-water forms, it 

 remains uncertain where the peculiar habitat of the species is." 

 The specimens exhibited were found by Mr. O'Meara in a mud- 

 hole, near Arklow, in the county Wicklow, in fresh water, remote 

 from marine influences — a fact which decides the question as to 

 habitat. 



Mr. O'Meara likewise exhibited a slide of Diatoms from Jutland, 

 which he owed to Eev. T. G. Stokes. 



Mr. Archer desired to draw attention to a seemingly remarkable 

 circumstance in a specimen o^ Amoeba villosa (Wallich), in which, 

 from the ordinary villous patch, were given oflT a number, probably 

 about a dozen, of long, very fine, linear pseudopodial (?) processes. 

 These hair-like developments were of different lengths, some nearly 

 as long as the body -mass ; the specimen, however, was below an 

 average size, and these were much finer and more delicate than 

 the seemingly somewhat similar, though coarser, processes re- 

 corded by Mr. Archer in this form on a previous occasion (see 

 Club Minutes of 15th Eebruary, 1866) . These gave the example a 

 singular appearance ; watched for some time they did not dis- 

 appear, but the Amoeba ere long unfortunately got lost. The 

 observation might, however, be just worth this brief record. 



VOL. X. NEW SER. X 



