18 THE GENUS TRACHELOMONAS, 



Var. CAUDATA, n.var. (PI. ii., f.l3, 14). 



Lorica insequaliter elliptica, interdum extremum versus paullo 

 latior, a tergo in caudam brevissiinam truncatam protracta; collo 

 nullo, ore lato; membrana spinis minutis sparsis oriiata. 



Long. 38-42, lat. 18-20 /x. 



Lismore 236, 241. 



Trachelomonas clavata, n.sp. (PI. ii., f.l5). 



Lorica lageniformis, clavata, levis; patte anteriore conica, in 

 collo longo recto ore everso producta; parte posteriore subrect- 

 angulari, ad basin truncatam levissime attenuata, lateribus fere 

 rectis. 



Long. 54, lat. 20; coll. alt. c. 10, lat. 4 /x. 



Botanic Gardens 3. 



A very rare form; the specimen observed had a very tenuous 

 membrane absolutely hyaline. 



Var. subarmata, n.var. (PL ii., f. 16). 



Lorica ut in forma typica sed luteo-fusca et scrobiculata; polo 

 posteriore spinis minutis paucis instructa. 



Long. 60, lat. 26; coll. alt. 10, lat. 6 fx. 



Botanic Gardens 137. 



Trachelomonas cactacea, n.sp. (PL ii., f.l7). 



Lorica ovalis fronte autem quam levissime attenuata, granulis 

 minutis sparse ornata, collo humillimo. 



Long. 38, lat. 23; coll. lat. 6 fx. 



Botanic Gardens 150. 



A very rare form, only once noted. There might possibly be 

 some connection between it and Track, bulla var. regularis Lemm., 

 Dr Volz gess. Alg., T. xi., f.6, but the latter is hardly rightly 

 placed as a variation of Track, bulla Stein. 



Trachelomonas granulosa, n.sp. (Pl.ii., f.l8). 



Lorica ovalis, interdum plus minusve acuminata, granulis min- 

 utis dense obtecta; collo humillimo aut nullo. 



Long. 17-26, lat. 13-22 /x. 



Guildford 146; Centennial Park 133; Can ley Yale 110; Fair- 

 lield 143; Botanic Gardens 150; Auburn 135, 139, 148; Botany 

 142, 145, 151, 152; Lismore 240, 242. 



