9 
Genus — LIT II OLA, Lamar k. 
Lituola cristellarioides, sp. nov. 
(Plate I, Tigs. 3 and 4.) 
Description. — Test coarsely arenaceous, complanate, sub-elliptical, 
with an outline like Cristellaria. Internal structure labyrinthic, rather 
than simply divided or chambered. Length of specimen a , 2T5 mm. ; 
width, IT mm. ; spec, b, length, 1*4 mm. ; width, '95 mm. 
Observations. — At first sight this species reminds one of Haplo- 
phragmium cassis, Parker sp. That form, however, is neatly and regularly 
divided by curved septa into gradually increasing chambers ; whereas our 
specimens, so far as could be ascertained with the limited material at our 
disposal, were internally labyrinthic. 
Occurrence. — In the decomposed limestone of Pokolbin No. 2 (Mt. 
Vincent). 
Lituola, cf. rhjetica, Chapman, sp. 
(Plate I, Fig. 7 ; Plate III, Fig. 7.) 
I lap lophragm iu m rhceticum, Chapman, 1895, Ann. Mag. Nat. Hist, ser. G, vol. XVI, 
p. 314, PI. XI., Figs. 3, 4. 
Observations. — The form which is referred with reservation to the 
above species is fairly common in the washed material from Wollong. The 
Rliaetic specimens from Wedmore, England, are more correctly referred to the 
genus Lituola since they have no distinctly chambered internal structure, 
like LLaplophragmium . 
Occurrence . — In the washed material from the decomposed limestone 
of Wollong and Pokolbin No. 3 ; also in thin slices of the Pokolbin 
limestone. 
Genus — THUR AMMIN A, Brady. 
Thurammina papillata, Brady. 
(Plate 1 1, Fig. 13.) 
Thurammina papillata, Brady, 1 879, Quart. Journ. Micr. Sci., vol XIX u.s , p. 45, PI. V ; 
Figs. 4-8. 
T. papilla! a Brady, Haeusler, 1883, Quart. Journ. Geol. Soc. vol. XXXIX, p. 27, PI III, 
Figs. 2-6. 
Observations . — By the occurrence of this interesting form in Permo- 
Carboniferous strata, the backward range of the species in geological time is 
