106 
Walter J. Parr. 
Several speeies of Hypemmmhioides have been described from tlie Penn- 
sylvanian of U.S.A, Of tliese, H. proleus (Cusliman and Waters) described 
(Cushman and Waters, 1928, p. 36, i)l. iv, figs. 5, 6) from Texas, most nearly 
resembles H. ac.ictiUu but has a different outline, particularly in the early 
stages, and attains a lengtli of only 2 • 25 mm. 
Prior to the receipt of the Wandagee material by the wTiter, Miss Irene 
Crespin, B.A., the Commonwealth Palaeontologist, had identified the genus 
H yperamtninoides in beds, [)robably of the same age as the U’andagee beds, 
in the Permian of New South Whales, and also in material collected by Dr. 
Arthur Wade and now in the collection of tlie Cieology Depanment of the 
University of Western Australia, from the West ICimberley District, C!rant 
Range, south section, just north of Hill 6. The Grant Range specimen has 
been kindly loanetl to me and the species proves to be H. adcnla. The ex- 
amples of Hyperainmnioides from New South W'ales are from shales and are 
not sufficiently well preserved to enable a satisfactory specific determination. 
They liave been recorded and figured, in a recent paper by Miss Crespin and 
the present vTiter (1941. p. 301, pi. xii, figs. 4, 5), as H. cf. proteus (Cusliman 
and Waters). Better specimens may prove them to belong to the [iresent 
species. 
Dr. Teichert has forwarded six selected specimens of a species of Hyper- 
arnminoides in thin-bedded micaceous sandstone from beds of the Byro Stage 
on the Gascoyne River, at Jimba Jimba Homestead. These are referred to 
H. acicula. They are all broken anil must hav'e been of unusual size when 
complete, as one specimen in its present state is 16 mm. in length. 
FAMILY SACCAMMINIDAE. 
SL B-FAMTLY PSAMMOSPHAERINAE. 
Genius PSAMMOSPHAERA F. K. Sehnlze. 1875. 
Psammosphaera pusilla, sp. nov. 
Plate I., figs. 6, 7. 
Test very small, spherical, consisting of a single chamber ; wall com- 
paratively thick, formed of fine ipiartz grains, very firmly cemented, the 
cement apparently siliceous ; surface smoothly finished. 
Diameter of holotype (an average specimen), 0-45 mm. 
Holotypo from Samjde 6 (Lingxda beds). 
There are twelve examples of this species. The strengtli of the shell 
wall is, for such a small organism, remarkable. Considerable pressure with 
the point of a needle is necessary before the test can be broken. 
P. cava, described by Moreman (1930, p. 48, pi, vi., fig. 12) from the Lower 
Palaeozoic of U.S.A., resembles the present species in external characters but 
has a tliin wall ; its diameter is 0-5 mm. Moreman states that P, cava was 
very abundant in the Chinmey Hill limestone. He remarks that it is very 
close to P. papyracea (Cushman), but that the latter has a thinner wall and is 
about twice as large. 
