30 BRITISH FRESHAVATER RHIZOPODA. 



ture terminal, linear, invaginated, elastic ; plasma 

 colourless, granular, containing numerous oil-like 

 globules and food-particles, usually filling the test ; 

 nucleus single, containing a central nucleole and 

 placed posteriorly ; contractile vacuoles numerous ; 

 pseudopodia single, filose. 



Length 34 /x; breadth 25 /u,; thickness 16-17 /t. 



Habitat. Mosses. 



ENGLAND. Cumberland ; Eccleshall, Yorkshire ; and 

 Derbyshire (Brown). 



SCOTLAND. St. Kilda (Brown). 

 IRELAND. Clare Island, Mayo. 



In this species, as with the majority of those inhabit- 

 ing the drier mosses, the pseudopodia are very rarely 

 displayed ; in the instances observed by Brown only a 

 single filose pseudopodiurn was emitted, of a peculiar 

 tapering character. The pseudopodia of C. bryorum 

 have not been observed. The method of multiplication 

 in C. timida is not known ; the aperture is linear, 

 bordered by sharply incurved lips, and unless seen 

 exactly at right angles it shows as two intersecting 

 curved lines ; the lips are usually tightly closed, but 

 that they are capable of distension is evident from the 

 presence in the plasma of large food-particles and 

 even diatoms. At Eccleshall near Sheffield it was found 

 in moss on walls and on a water-trough ; on Clare 

 Island and St. Kilda in damp moss on the ground. 



Genus 16 b. DIPLOCHLAMYS Greeff. 



Diploctilamys GREEFF in Sitzb. Ges. nat. Marburg, III (1888), 



p. 104. 

 Amoeba (pars) PENAED in Mem. Soc. Geneve, XXXI, 1, n 



(1890), pp. 192-193. 



Test hemispherical or cup-shaped, flexible, formed 

 of an inner and outer envelope ; the inner envelope 

 consisting of a hyaline membranous sac closely in- 



