Bryozoa from the Wandagee and Nooncanrah Series 
(Permian) of Western Australia. 
1(>7 
Inf HudibnUform or llabelUdo Fenestrellinidae, with tiro rows of alter- 
natiuf) zooecia on the branches^ ewcejd before bifurcation, when the ninid)er 
of rows is increased; rows of zooecia separated bp a mcdiam carina, jdain 
or more fre(pientlp noth a single row of nodes {aca)ifho]/orcs) ; dissepiments 
not cellalif crons ; internal stractnre and rererse snrfarr as for the f<fmihp 
Fenestrellina horologia ( llrclnall 1 (Plato I., figs. (>.) 
Fenestella horologia Bi’olnall, 19-(5, dosc-riptioiis of somo Woshaai Austra- 
lian Fossil Poiyzoa, W.A. (leol. Sarr. HnU. SS, p. lo, pi. 1, tig. ti. 
[non] Fenestella horologia Bri'fnall, ilosking, 1991, Fossils froni tho \V(Kn‘a- 
inel Distriot, W.A., Jonr. Hop. Sor., ll’..!., A”ol. XVII., p. 19, pi. 1\., 
fig. 9. 
Fenestella parvinsenia Basslor, 1929, Ponnian l^>ryozoa of Tinioi', Pa! lontolo- 
gle ro}i Timor, Liof. XVI., XXVllL, p. 7(i, pi. (’(WLl (IT), tigs. 8-19. 
Fenestella parrinsenia Basslor, Martin, 19,92, Do Paloontolouio an vStrati- 
graphio van XcMlorlandsoh Oost-lndio, Bryozoa, p. 991. 
Fenestella parvinsenia Basslor, Fritz, 1992, Ponnian Bryt)Z(»a from Vaiu-om'or 
Island, Trails. Hop. Soe., ('anada, Ser. 9, Vol. 2t), S('ct. I\’., p. 9t). 
Fenestrellina parrinsenia (Basslor), Flias, 1997, Slratigraphii- Siguitioanoo 
of Sonio Lato Paloozoio Foin'strato Bryozoans, Jonr. Paleontologp, Vol. 
11. No. 4, p. 914. 
Fonosti'(dlina irith (wo zoeeeia to a fenest rale ; earina Ion'; nodes sharp, 
relativelp high, abont two to a fenest rale ; fenesl rales honr-glass shaped. 
Horizon and looality: Xoonoanhah Sorios; Ko(*vi(‘'s \V('ll, (dght miles 
north of Mt. Andorson Ilonu'stoad, Kimborloy Distriot (('oil. A. Wado). 
The form of tlio oolony is not shown; thoro aro f)-om 1(> to IS I'onostrnlos 
vortioally, and from 20 to 22 branohos horizontally, in 10 mm. Tho branohos 
aro straight, from 0-29 to 0*98 mm. in widtli, and show a slight, i-atlu'r 
roundod oarina, with sharp, ivlativoly high nod(‘s in a singlo row, at intor- 
vals of from 0 29 to 0-91 mm.; tho bases of those nodes are slightly elon- 
gated i)arallol to tho length of tho bram-hos. In tho older parts of tlu* colony 
supporting rootlets may bo developed from tho oollulitorous suriaoo, and 
tho thioknosH of the bi-anolios (normally about 0-9 mm.) may bo gi-oatly 
inoroasod by extra deposits of oaloium oarbonato: the nodes boeonu' very 
muoh thickened, and may appear bifid or tritid near tho top, and tho aper- 
tures b(M'onio closed. The sides of tho ])ranohos, on which tho apertures aro 
placed, aro slightly (lattenod, but tho apertures project into tho fonostrnlos; 
they aro circular, from 0-1 to 0-19 mm. in diameter, amt where they are 
w('ll preserved show about eight fine radially directed ribs; tlu'se, however, 
were v(*ry easily iemo\'ed bv weathering; the peristomes ar<‘ distinct, and 
ai ‘0 best developed on th(‘ side towards the Uaiestrules. 1 w<t apertures o<'cur 
in the length of one fem'striile and one <liss(‘piment ; these art* nsnatly V(*ry 
regularly arranged, one being phn't'd o])positc the end ot t'ach disst'pimenl . 
and one at the centre of each fenestrule -the projection of these at>ertim's 
into th(* fenestruh's gi\es tlu-m tlndr characterislit-, hour-glass shape; 
a less regular arrangement may be develoi>ed lor a it'w lenestrnles. 
The distance between the centres of successive aiu'rtures is from 
9-21 to 0 9.4 mm. (avt'rage 9-27 mm.}, but is generally betwe(‘ii 9-27) and 
* TliivS species is beiiij; revised, in r st'i.nraio paper, from the type mtitorial in the 
collection of the Western Anstruliun Geological Survey, with which the specimens here 
described have been compared. 
