142 BIOLOGY OF THE RICHMOND RIVER, 



Var. CLAVATUM, n.var. (PI. viii., f.8). 



Forma clavata, parte superiore elliptico-lanceolata, protoplas- 

 mate granulate, apice angusta truncata; parte infei'iore angusta 

 in Cauda protracta, protoplasraate homogeneo; flagello recto. 



Long. 40, lat. 6, ap. 2, caud. 1 /x. 



Lismore (12, 13). Cum priori. 



Looks like Peranema (Astasia) trichophorum var. ptisillum 

 Stokes, but the motion is that of Menoidium. 



Other interesting forms of Infusoria noted were, Mastiyamceba 

 longijilum Stokes, Anthophysa vegetans Stein, Dendromonas vir- 

 garia Stein, Cot?iurnia parallel a ^lsi^\ie\\, and Opercnhita elongata 

 Kellicott. 



RHIZOPODA. 



DiFFLUGiA Casinoensis, n.sp. (PI. viii., f.9). 



Lorica subglobosa, in ambitu late-ovalis, ore lato margine 

 levissime recurvata. Membrana glabra pellucida, frustilis Cocc. 

 placentidcB confirmata. 



Long. 48, lat. 40, or. 28 ^i. 



Casino (14). 



DiFFLUGiA acuminata var. Levanderii mihi. (PI. viii., f.lO). 



Lorica angusta lateribus subparallelis, extremitate posteriore 

 acuminata in cauda brevi protracta. Membrana granis arenae 

 confirmata. 



Long. 190, lat. 60, or. 48 /x. 



Casino (14). Cf. Levander, Wasserfauna, T. i., f.7. 



Var. BACILLIFERA, H.var. (PL viii., f.l 1). 

 Long. 110, lat. 70, or. 40 /x. 

 Lismore (13). 



DiFFLUGiA RiCHMONDiiE, n.sp. (PI. viii., f.l 2). 



Lorica ovalis, apice truncato, ore minuto circulari. Membrana 

 granulis rugosa, dilute luteo-fusca. Pseudopodia crassa. 

 Long. 14, lat. 12, lat. oris. 3 /x. 

 Lismore (2). Common. 



