79* 



PERIDIXEAE OP NEW SOUTH WALES, 



with those of Cystodinium cornifax (Schilling) Klebs, but the 

 shape of the encysted organism was not distinct and I have never 

 felt quite certain of a connection between the two. Moreover 

 it seems to me not at all unlikely that all species of Gymno- 

 di niitm form these. cysts; for these reasons I have not placed it 

 under Cystodinium. 



Var acutum, n. var. (Text-fig. 2 b, c.) 



Forma major, magis ovata, praa latitudinem longior, angulis 

 aeutioribus, parte anteriore interdum rotunda nee campanulata, 

 fossa transversa, arcuata. 



Long. 58-70, lat. 36-42 p. Lismore (241, 327, 332, 347) . 



A larger form, longer in proportion to the breadth and with 

 more pointed angles, the transverse furrow arched upwards, not 

 straight across, the anterior part of the cell sometimes rounded 

 and not bell-shaped. 



Genus Glenodinium Ehr. 



Glenodinium oculatum Stein. (Text-fig. 3 «, b, c.) 



Long. 31-34 J, lat. 26-31 i, crass. 23 p. 

 Botanic Gardens, Sydney (3) ; Lismore (312) . 



■x 



Text-fig. 3. 

 Glenodinium oculatum Stein. 

 (a) dorsal view, (b~) ventral 

 view, (<r) end view, (ci) var. 

 cii'cu/alum, n. var. (x 800). 



Text-fig. 4. 

 Glenodinium auslralicmu,n.s-p. 

 (a) dorsal view, (6) ventral 

 view, (x 500), (c) end view 

 (x660). 



