72 
Dorothy Hill. 
EXPLANATION OF PLATES. 
Plate I. 
Permian Corals from Western Australia. 
All specimens are in the Collection of the University of Western Australia. 
All figures by 2 diameters, approximately. 
iig. 1 A mjyleTUs'' pustulomifi Jludleston. Transverse section. Upper part of Cally- 
tharra Series near Trig. Station K;')2, Kennedy Range, near Williambury- 
Middalya road. No. 4-1071. 
Fig. 2. AUotro'piO'phylhan, sj). Transverse section, ^liddle part of the Calceolieponyia 
Stage in the ^^'andagee Series, near Coolkilya Pool, ^linilya R. No. 41072. 
Fig. 3. Eurypbylln7)i reidi Hill. Transverse section. Upper part of the Calceolispongia 
Stage in the W'andagee Series, north side, Minilya R., of Coolkilya Pool. 
No. 4107‘L 
Fig. 4. ? EuryphylUnn, sj). Transverse section. Locality and horizon as for fig. 2. 
No. 41074. 
Fig. 5. Verbeekiella mersa. sp. nov. Transverse secticai of holotype. Lower part of 
the ('alreolif^pontjUi Stage in the \\'andagee Series, north side, Minilya R., 
W. of Coolkilya Pool. No. 4107."). 
Fig. (). Verbeekiella mersa. sj). nov. Vortical section. Upj)or ])art of the Calceolis- 
Stage in the Wandagee Series, north side Alinilva R., W. of Coolkilya 
Pool. No. 41070. 
Fig. 7. Verheekia ialbotl (Hosking). Transverse section. Callytharra Series, Cally- 
tharra vSprings. No. 41077. 
Fig. ,8. Thamyiopora itnmenm Hill. X’ertieal section. Rnlgadoo Pool, Minilva R. No. 
41069 ( 20204). 
Fig. 9. Thamnopora insciilpta, sp. nov. Type material. Callytharra Series near Cal- 
lytharra S])nngs, a, h, traivsverse section ; e, tangential and d, median 
vertical section. No. 41078 a, b. e, d. 
Fig. 10. 
Thayyinojyora sj). Section. Callytharra Stage, Callytharra Springs. No. 41079. 
