670 RHIZOPODS OF SYDNEY AND LISMORE, 



circular, of equal size, showing slightly curved at the margin, 

 neither contiguous nor overlapping (in the specimen ubser\ ed) 

 but a slight distance apart, the interspaces marked with Httle 

 tlecks of cementC?). Tail without plates, chitinous, rough- 

 surfaced. Test in side-view somewhat like a Cyphoderia with 

 pointed fundus, mouth projecting, oblique, evaginate. 



Length 100, breadth 25, orif. 15, tail 27 x 4, scales x 5/x. 



Botany (155). 



Cf. Pareuglypha Penard, Faune Rhiz., p. 4 9 2. Only one speci- 

 men seen, and the test was empty. I was in doubt whether the 

 species should not go under C yphoderiopsis, but if the mouth 

 were invaginate, and it looks as if it might be, there would be a 

 very great likeness to Trinema. Tr. enchelys Ehr., and Tr. 

 liiieai'e Penard, are, of course, common everywhere. 



Gromiina. 



Genus Pseudodifflugia 8chlumberger. 



PSEUDODIFFLUGIA GRACILIS Schlumb. 



Length 27-47, breadth 18-34, base 8-1 5/x. 

 Coogee(14); Botany (37); Lismore (308, 333). 



Pseudodifflugia fulva (Arch.) Penard. 



Length 15-23, breadth 11-19, base 4-10/x. 



Auburn (1396); Guildford (23 77); Lismore (321). 



The only difference, that I can see, between these two species 

 is that one is smaller than the other. I have made, here, 25//. 

 long the dividing line between them. 



Pseudodifflugia microstoma, n.sp. (PI. xxxix., f.9). 



Test chitinous, with fine, scattered grains, sometimes with 

 coarser Hints. In shape ovate, rounded behind; sides gently 

 arched, converging rapidly down to a very small, indefinite orifice 

 not specially margined. Test not compressed, section circular. 



Length 30-31, breadth 17-23, orif. 4/x. 



Guildford (173); Lismore (333). 



Var. obesa, n.var. (PI. xxxix., f. 10). 



Test very broadly ovate, almost globose, section circular, orifice 

 very small. 



