80 RHIZOPODAN FAUNA OF A BRISBANE LAGOON. 



III. March (collected 29th Mar.): — Amoeba proteus 

 Ldy., Arcella artocrea Ldy., A. discoichs Ehr., A. mitrata 

 Ldy., A. vulgaris Ehr., Centropyxis aculeafa Stn., Difflugia 

 ohlonga Ehr., Euglyjyha acanthophora Ehr., *E. tuherculata 



Large Difflugia oblonga coninioii. 



IV. April (collected 2nd May) : — Arcella artocrea Ldy., 

 A. discoides Ehr., A. mitrata Ldy., A. vulgaris Ehr., 

 Centropyxis aculeata Stn., * Difflugia corona Wallich (un- 

 spined), *D. lobostoma Ldy., D. oblonga Ehr., Euglypha 

 acanthophora Ehr., *^. fuberculata Duj., Trinema enchelys 

 Ldy. 



Euglypha acanthophora observed in conjugation. 



V. May (collected 31st May): — Amoeba proteus Ldy., 

 A. radiosa Ehr., Arcella artocrea Ldy., A. discoides Ehr., 

 A. mitrata Ldy., A. vulgaris Ehr., Centropyxis aculeata 



Stn., C. ecornis Ldy., "^ Difflugia lobostoma Ldy., Euglyjiha 

 acanthopJwra Ehr., E. cristata Ldy., E. tuberculata Duj., 

 Pareuglypha reticulata Pen., Trinema enchelys Ldy. 



Euglypha cristata Avas observed for the first and only 

 time from this locality, and both E. acanthophora and 

 E. tuberculata were seen in conjugation. This phenomenon 

 was also noticed in the case of two Centropyxis, of which 

 one appeared to be a one-spined actdeata and the other 

 an ecornis. 



VI. June (collected 28th June) : — Amoeba proteus 

 Ldy., A. radiosa Ehr., Arcella artocrea Ldy., A. discoides 

 Ehr., A. mitrata Ldy., A. vulgaris Ehr., Centropyxis 

 aculeata Stn., "^Difflugia corona Wallich (spineless), *D. 

 oblonga Ehr., D. tuberculata Wallich, Euglypha acanthophora 

 Ehr., Pareuglypha reticulata Pen., Trinema enchelys Ldy. 



Pareuglypha reficulafa observed in conjugation. 



VII. July (collected 1st Aug.) : — Arcella artocrea Ldy.. 

 A. discoides Ehr., A. m/itrata Ldy., A. vulgaris Ehr., 

 Centropyxis aculeata Stn.. Difflugia corona Wallich (spine- 

 less), D. corona Wallich (spined), *i). leidyi Wailes., *D. 

 oblonga Ehr., *D. tuberculata Duj., Pareuglypha reticulata 

 Pen., Tritiema enchelys Ldy. 



