132 AUSTRALIAN FRESHWATER FLAGELLATES, 



Long. 13i, lat. 11; eoll. lat. 4^. Lismoie (197). 



A small rounded form, about half the size of the type, hardly ovate at 

 all, obtained from weeds in the Richmond River. The membrane is smooth, 

 not striate, and the ring-neck not fluted. 



Trachexomoxa.s coronata, n.sp. (PI. vi., figs. 29, 30). 



Forma ovalis, vel ovata poue attenuata; superue collo latissimo divergeute, 

 margine cuspidato, coronata; interne cauda brevissiraa rectangulari bidentata 

 praedita. 



Long. 36—38, lat. 20—21; coll. alt. 2 — 1, lat. Vlfj.. Lismore (328). 



The lorica is oval, or ovate narrowed posteriorly. Above, furnished with 

 a wide outstanding collarette in form of a crown, with a cuspidate margin; 

 below, a very short, S(|uare, bideutate tail. Membrane smooth or very slightly 

 roughened. 



Trachelomonas splendida, n.sp. (PI. vii., iig. 1). 



Lorica magna, elliptica; sursum collo (|uadrato, ore everso. interne cauda 

 brevissima subrectangulari; niembrana granulata. 



Long. corp. 40, lat. 20; coll. alt. 6, lat. 5; caud. long. G, lat. U/j.. Lismore 

 (365). 



A large handsome species with a long-oval or elliptical body, square neck 

 with everted rim, and short, subrectangular, stubby tail. Membrane dark yel- 

 low, granulate. The zooid was alive and active; the chlorophyll seemed to be 

 diffused through the outer layer of the cytoplasm. The latter must have been 

 very translucent, for in spite of the yellow colour and granules of the lorica, the 

 internal organization of the zooid could ea.sily be seen, which is rare in this 

 genus. 



This is one of my very latest finds; I thought I had exhausted the possi- 

 bilities of the district, but the number and variety of types in Trachelomonas 

 seem to be infinite. 



Trachelomoxa.s hispida (Perty) Stein. 



Long. s.sp. 32—50, lat. s.sp. 23—33; spin. long. 4—6^. Botany (92, 142); 

 Lismore (333). 



Of much larger dimensions than the type which is not over 30 x 20ya with- 

 out spines; and spines only 2n long. 



Trachelomoxas bacillifera Playf. 



Long. s.sp. 35, lat. 32; spin. long. 2^. Lismore (347). 



Hitherto known only from Sydney; lorica almost spherical ;uid very dark 

 reddish-yellow in colour. 



Var. jiikijia Playf. (PI. vii.. fig. 2). 



Long. s.sp. 124, lat. lOJ; spin. long. 2fi. Lismore. 



Only about iialf the size of the specimens previously recorded (Genus 

 Trachclomonsis, p. 22). It should be noted that in all tho forms of Tr. bacil- 

 lifera figured there, the spines are too fine, they should be much coarser, and 

 not so many on the lorica, yet still (|uite close together. 



Var. GIX)BUIX)SA, n.var. (PI. vii., fig. 3). 



Forma sphaerica minuta. Diam. s. spin. 11/t. Brisbane. 



