BT G. I. PLAYFAIR. 115 



p. 169, fig. 123c; the size works out at 9 >< d/x,. A minute form not uucommou 

 here, but never before more than a few individuals at a time. The chromato- 

 phores are described as blue-green aiul 1 have once noted them that tint, but 

 j^trong and often bright blue is the rule, and turquoise-ljlue may sometimes be 

 observed. Occasionally what rcseinhlcs a small pyreuoid is pre!:;ent near the 

 centre of the cell, or two smaller, one above the other. 



Crvptomonas UEiiMA, n.sp. (PI. ii., fig. 27). 



Cellulae ad C. ovatam ambitu valde accedeutes, ellipticae, sursum uno latere 

 oblique truncatae; hyalinae pellucidae in medio chromatophoris binis globosis 

 cyaneis instructae. 



Cell. long, circa 20;u.. Lismore (291). 



This is a very curious form which I have met with only once, but it was 

 jireseut in much greater abundance than Cryptomonas generally is, four or five 

 lieing in the field of view at one time. In shape like ('. ovata, it is perfectly 

 liyaline and pellucid, no internal markings at all being visible excej)! the two 

 chromatophores which were bunched up together in the centre of the cell in the 

 form of two, sharply-defined, bright blue gloljules. All the specimens were alike. 

 In movement they were very lively; flagellates with blue chromatophores gener- 

 ally are. 



CnypTOnoxAS oblonca, n.sp. (PI. ii., flg. 28). 



Cellulae minutae oblongae. utroque polo rotundatae, sursum hau<l frun- 

 catae; lateribus parallelis subrectis; chromatophoris dilute aeruginosis 2; stig- 

 mate nullo; c.v. subai>icali. 



Long. 11, lat. Qfi. Lismore. 



A minute oblong form with rounded ends, not truncate in frunt, sides more 

 or less straight. There were two pale blue-green chromatophores and a sub- 

 apical c.v. but no stigma. A little below the centre what looked like a pyrenoid 

 or elaeoplast. I saw only one flagellum l)ut probably there were two, as the 

 p>Tenoid and the colour of the chromatophores indicate Cryptomonax and not 

 Mallomonas. Non-motile at firet, the cell became motile while under observation. 



Euglenineae. 



Fam. EUGLENACEAE. 



Genus E u t r k p t i a Perty. 



EUTREPTIA VIRIDI8 P'erty. (PI. iii., fig. 1). 



This is a rare flagellate; I have only met with it in one gathering, where, 

 however, it occurred in good numbers. I am not quite certain whether ours 

 is the same as the European form. It is like Phacus moniliata var. suecica Lemm. 

 with the body slightly elongated and produced below into a long blunt tail. 

 Daugeard, who figures it (Reeherches sur les Eugleniens, p. 103, fig. 24) makes 

 no mention of any granules, whereas our specimens are finely puncto-granulate in 

 spiral lines running obliquely and transversely from left to right. In side view 

 it is elliptic, compressed. Differs from Phacus in having no amylaceous plates. 



Cell. long. max. 58. caud. 21, lat. corp. 25, apic. lO^ii. P.otany (95). 



