BY G. I. PLAYFAIR. 653 



Length 42, breadth 36, orif. 11/x. 

 Lismore (308). 



T have not seen the Hving creature, and, therefore, this species 

 might possibly be a Fseudodifflugia. 



Genus C u c u r b i t e l l a Penard. 



CUCURBITELLA AUSTRALICA, n.sp. (PL XXXvii., f.l7). 



Test minute, hyahne, transparent, in shape ovate, circular in 

 section, rounded behind; sides arched, becoming more or less 

 straight near the orifice, towards which they converge rapidly. 

 Orifice circular, surrounded by an everted collar, smooth, struc- 

 tureless, transparent. Tests without scales or flints, structure- 

 less, covered with coarse, papilliform granules. 



Length 19, breadth 15, collar 8|, constriction 6|^/x. 



Lismore (308). 



I have not seen#<he living creature, but contents, exactly re- 

 sembling those of a rhizopod, were noted in preserved specimens- 

 Genus Lesquereusia Schlumberger. 

 Lesquereusia spiralis Ehr. 



Test nnigh with coarse flints. >Syn., Lesquereusia inodesta of 

 various authors, not L. modesta Rhumbler. The editorial n(jte 

 in Cash, Brit. Frw. Rhiz., ii., p. 6 6, leaves no doubt at all that 

 Ehrenberg's species is the rough, flint-covered one, and that 

 the species with vermiform pellets is L. jurassica Schlumberger. 

 Cy. Leidy, Rhiz. U.S.A., p. 127 (under D. spiralis), who quotes 

 Schlumberger's words with regard to the test being composed of 

 a paste of minute, bacillar bodies. Again, L. modesta Rhumbler, 

 is not the sandy form. I have not been able to obtain Rhumb- 

 ler's memoir, but Penard, Faune Rhiz., p. 3 2 9, quotes that author's 

 own words, "le plus sou vent compose de plaques arrondies irre- 

 gulieres qui dans certains cas montrent une zone interieure plus 

 fortement refringente. Leidy a sans aucun doute represente un 



exemplaire appartenant a cette espece (PL xix., fig.23)." 



The latter then, an excellent figure, is the type of L. modesta. I 

 have not met with the species, but I know well the class of 

 plating to which Rhumbler refers, which is found also in 



