DUBLIN MICROSCOPICAL CLUB, 87 



36), but that form, besides appearing to be much smaller, pre- 

 sents the four flagella emanating from one and the same point of 

 origin at the apex of the body, and the " eye speck" appears to 

 occupy a position more immersed in the contents, not, as it were, 

 directly apposed to the outer coat, or, indeed, seemingly a little 

 prominent beyond its contour ; as to their identity or non-identity 

 it would, however, appear premature to come to any direct con- 

 clusion ; the form now shown had never before been detected by 

 Mr. Archer, but it may, indeed, be not uncommon, and it is to be 

 hoped that ere long it may be met with elsewhere, and its true 

 nature determined. 



As a companion exhibition, and interesting for the sake of 

 comparison with the foregoing, Mr. Crowe brought forward exam- 

 ples of a more minute green biciliated form of Chlamydomonad, 

 probably a state of " Frotococcus pluvialis." These were taken 

 in vast numbers from the hollow stone near the railway station at 

 Bray, which in warm wet weather frequently yields an abund- 

 ance ; these, in the mass in the collecting bottle, presented a 

 brilliant green, and when seen crowded under the microscope 

 moved with amazing rapidity. 



Dr. ]\Ioore brought to notice a similar yet distinct form to the 

 foregoing, taken from a receptacle for growth of aquatics in the 

 Botanic Garden ; here the individuals were somewhat pointed at 

 the opposite extremities of the still more minute, less brightly 

 green, biciliated bodies, the motion active though ere long sub- 

 siding. Both this of Dr. Moore's as well as Mr. Crowe's were 

 mutually distinct things, and each even still more distinct from 

 that shown by Mr. Archer, yet all " related," no doubt, but all 

 requiring much and long observation, and happy opportunities in 

 the future, for their ultimate elucidation. 



Amongst rare Rhizopoda found at Glencar, Mr. Archer drew 

 attention to his Diaphoropodon mohile (' Quart. Journ. Micr. 

 Sci.,' vol. ix, n. s., p. 39-4), as well as his more lately encountered 

 Amphizonella,vestita (' Quart. Journ. Micr. Science,' vol. xi, n. s., 

 p. 107). It is a pity that in the figure published of the former 

 rhizopod, either the artist or printer has imparted much too blue 

 a colour to the processes fringing the general outline of the body; 

 they are colourless, or nearly so — in fact, in a sketch, would he 

 best represented by a mere line of weak gum water, with the 

 faintest admixture of Indian ink and cobalt. In the present 

 examples not any protococcoid cells seemed to have entered into 

 the composition of the loosely-aggregated encasing of this form, 

 but a greater number of minute diatoms contributed to the pro- 

 duction of a kind of investment rather more dense than in the 

 first examples Mr. Archer had ever seen (from Glen-ma-lur Valley, 

 in Co. Wioklow) ; yet all foreign bodies were disposed in but a 

 loose and " tossed " manner, but diatoms were always applied 

 flatly to the body.surface. Mr. Archer thought this form must 

 be justly regarded as amongst the extreme rarities ; found only 

 once before in a very restricted area (though at so great a 



