no BEITISH FEESHWATEE EHIZOPODA. 



Test ovoid or pyriform, membranous, flexible, 

 colourless or yellow ; fundus rounded or pointed ; 

 transverse section oval, lenticular, or arcuate; aperture 

 terminal, small, supple, and elastic ; plasma colourless, 

 granular, completely filling the test, often containing 

 many food-particles; nucleus large and granular or 

 containing a small number of nucleoles ; one or two 

 contractile vesicles and numerous vacuoles generally 

 present ; pseudopodia numerous, long, radiating, 

 branched or simple, extremely fine. 



Length 20-70 /a; mature individuals usually 45- 

 60 fjL ; breadth about half the length; thickness variable. 



Habitat. — Submerged sphagnum and aquatic vege- 

 tation. 



England. — Shefiield district, W. Yorkshire (Brown) ; 

 Cheshire (Gash); Epping Forest, Essex {Scow-field). 



Ireland.— W. G-alway, Westmeath, and Tipperarj- 

 [Archer). 



Owing no doubt to the difiiculty of identifying it when 

 not active and to the fact that it is extremely local in 

 occurrence, the records of this species in the British 

 Isles are very few. It may be looked for amongst 

 filamentous algte, where, entangled among their mucous 

 investment, perhaps a number of individuals will bf 

 found together. When replete with food-particles it 

 is of a more or less dark brown colour. 



It is probably widely distributed in the British Isles. 



3. Lecythium granulatum (Schulze) Hopk. 

 (Plate XLIV, fig. 11 ; PL L, figs. 1 and 2.) 



Gromia granulata 



ScHiTLZE in Arch. mikr. Anat. XI (1875), pp. 117-118, pi. vii, ff. 5, ti. 



Archer in Qrt. Jrn. Micr. Soi. (n. s.) XVI, p. 343 ; in Proc. Dublin 

 Micr. Club, III, 2 (1878), p. 134, 

 Paniphagus curvus 



Lbidy Pi-esliw. Rhiz. N. Anier. (1879), p. 196, pi. xxxiii, ff. 11, 12. 



West in Jrn. Linn. Soc, Zool. XXVIII (1901), p. 331, pi. xxix, f. 27. 



POREL Le Leman, III (1904), p. 137. 



