LIEBERKUEHNIA WAGENEEI. 137 



Individuals occur provided with an aperture at each 

 pole, usually having a raphe at either end ; Penard 

 records one such in which the raphe appeared to be 

 continuous from one aperture to the other. 



Propagation by the test dividing . into two or three 

 portions has been observed. 



Lieberkuehnia wageneri is easily distinguished from 

 L. paludosa, as the latter species is much the larger, 

 being usually from 200 /x, to 350 ju, in length, has a 

 stout membranous test from 2 fju to 4 ju, in thickness, 

 and the nuclei are few in number, often only one, or 

 if more than one then the number is one of the series 

 2, 4, 8, 16, or 32, and according to Penard never 

 more. It is distinguished from the exclusively niarine 

 species L. gracilis and L. biietschli by these always 

 possessing only a single nucleus. 



Genus 47. ALLOGROMIA Rhumbler, 1903. 



Gromia (pars) Dujaedin in Ann. Sci. nat. (2) "VIII (1837), 



p. 311. 

 AUogromia Ehumblee in Arch. Protist. Ill, 2 (1903), pp. 



203-204. 

 Lieherhuhnia {pars) Penaed in Arch. Protist. IX (1909), 



p. 295. 



Test a thin chitinoid membrane, rather rigid, smooth 

 or slightly coated with extraneous matter, broadly 

 ovoid or spherical ; aperture terminal ; one or more 

 nuclei; contractile vesicles numerous; pseudopodia 

 numerous, filiform, springing from a short peduncle, 

 branching and anastomosing, with numerous mobile 

 granules. 



Rhumbler founded this genus to comprise those 

 species of reticulose testaceous Rhizopoda possessing 

 a single, smooth or nearly smooth, spherical, oval, or 

 ovoid test, a terminal aperture, and a short peduncle 

 bearing reticulated pseudopodia. Its nearest ally is 

 Lieberkuehnia, which has a lateral or sub-terminal 

 aperture and a long peduncle bearing the pseudopodia. 



