BkYOZOA from THK WaNDAGKE and N()(JN'CANBAH 
(Pkrmian) of Westfhn Austuadia. 
17 :^ 
belonging here has been given by Elias (1937, p. 324). The following are 
amongst the species included in this group : — 
Fenestella geminanoda Moore (Upper Uennsylvaiiian to LoAver 
Permian). 
Fenestella bispimdata Moore (Upper Pennsylvanian). 
Fenestella hinodata Condra (Upper Pennsylvanian). 
Fenestella conradi var, compactilis Condra (Upper Pennsylvanian 
to Lower Permian). 
Fenestella kukaensis Bassler (Permian). 
Fenestrellina hitnherculata Crockford (Permian). 
Fenestella perelegans Meek, Waagen and Pichl (not Fenestella 
perelegans Meek), (Permian). 
^Fenestella jabiensis Waagen and Pichl (Permian). 
Minilya duplaris sp. nov. (Permian). 
Minilya princeps sp. nov. (Permian). 
Minilya duplaris sp. nov. 
Plate I, hgs. 5, 7 ; Text-figure 1 C, D. 
Fenestella^ horologia Bretnall, ITosking, 1931, Joar. Roy. Soc. W.A.^ Vol. 
XVII, p. 13, pL IV, fig. 3. ' 
[non] Fenestella horologia Bretnall, 1926, IV.A. Geol. Surv. Bull, 88, p. 
15, pi. I, fig. (1. 
[cf.] Fenestella perelegans Meek, Waagen and Pichl, 1883, Pal. Indica, Ser. 
XIII, Vol. I, p. 777, pi. LXXXVII, figs. 1-3. 
[non] Fenestella perelegans Meek, 1871, in Ileyden’s Final lU'port on N('- 
braska, p. 153, p\. VII, 6g. 3. 
Holotype: Specimen 2793d, University of Westeni Australia Collection. 
(Coll. H. W. B. Talbot). 
Iloiizon and locality: Xooncanbali Seri(‘.<, miles North of Mt. 
Anderson. 
Minilya with two zooecia to a fenestrule; carina slight; nodes sharp,, 
relatively high, in two roies on the C((rina; reverse surface tuberculate. 
The form of the ('olony is not shown: there are from 16 to 19 branchi's 
horizontally, and from 14 to 17 fenestrnles A'ertically, in 16 mm. The 
branches are sti’aight, fi'om 0-33 to 0-41 mm. in width, and show a slight 
median carina, which may be produced upwards in a very thin, zig-zag' 
ridge betAveen the node>, Avhich are in tAA'o rows and ‘cWo. alternating; the 
nodes, where they are \vell pres(‘rved, are sharp and relatively high, and 
each node is placed lateral to an aperture; adjacent nodes are from 0-l!l to 
0*17 mm. apart. The a])ertur(*s are circular, al)out 613 mm. in diameter; 
very thin ])eristomes are developed, but these are usually broken away. Tin* 
apertures are placed on the steeply sloping sid('s of the brances, and pro- 
ject into the fenestrules; the distance betAveen the centres of successive 
apertures is from 0-27 to 6-35 mm. (average 0-3 mm.), and about 33 
occur in 10 mm. There are two a])ertures in the length of one fene- 
* Til 1915 Frederiks (pp. 47-48) described a new sub-genus of Fenestella, Fenestepora, 
with three species, Fenestepora jabiensis (Waagen and Pichl), Fenestepora foraminosa 
(Eichwald), and Fenestepora retiformis (Schlotheim) . The species considered by Frederiks 
to be identical with Fenestella jabiensis Waagen and Pichl is a different species : Fenes- 
tepora is considered to be a distinct genus, and Fenestepora jaln^nsis Frederiks [not Waagen 
and Pichl] has been chosen as genotype by Bassler (1935). 
Fenestepora Frederiks is distinguished from Fene.streUina d’Orbigny by the presence- 
of a row' of small cellules (as distinct from nodes) on the carina of each branch. 
