JOURNAL OF THE ROYAL SOCIETY 
OF WESTERN AUSTRALIA. 
Volume XXVIII. 
1.— PERMIAN PEODUCTINAE AND 
STROPHALOSIINAE 
OF WESTERN AUSTRALIA. 
By K. L. Prendergast. 
Read 8th October, 1941; Published 20th April, 1943. 
Communicated by Professor E. de C. Clarke. 
CONTENTS. 
Page 
I. Introduction ... ... ... ... ... ... ... ... ... 1 
II. Morphology and Bionomical Interpretation thereof ... ... ... 2 
III. Trends in the Froductinae ... ... ... ... ... ... ... 8 
IV. Classification ... ... ... ... ... ... ... ... ... 9 
V. Description of Species ... ... ... ... ... ... ... 12 
VI. Bibliography ... ... ... ... ... ... ... ... ... 57 
VII. Plates ... ... ... ... ... ... ... ... ... ... 62 
I. INTRODUCTION. 
The correlation of beds in geographically distant localities has often 
been based on the comparison of published lists of fossils. At many times 
in the history of Australian Geology these comparisons have been made with- 
out a re-examination of the specimens concerned : 
“Creatures borrowed and again conveyed 
From book to book — the shadows of a shade.” 
The first specimens from Western Australia were described in 1883, and at 
that time one specific name covered a multitude of forms which have now 
been subdivided into several species. It is thus obvious that if the corre- 
lations are to have any value, drastic revision of the naming of many 
specimens is necessary. This paper, containing complete descriptions of the 
Permian Productinae and Strophalosiinae of Western Australia is a small 
contribution towards that revision. 
The present time is opportune for this revision as the work of the 
geologists of the Freney Kimberley Oil Co. and of Oil Search, Ltd., has 
increased enormously our knowledge of the geology of the Permian and has 
made available collections of fossils. I offer my thanks to Dr. Arthur Wade 
of the Freney Kimberley Oil Co. and to Mr. H. Fletcher of the Australian 
Museum, Sydney, for the loan of the specimens collected. 
For the loan of specimens used in the preparation of this paper the 
author thanks, as well as those already mentioned, Dr. H. M. Muir- Wood 
of the British Museum, Professor E. de C. Clarke of the University of 
Western Australia, Mr. A. G. Brighton of the Sedgwick Museum, Cambridge, 
Mr. L. Glauert of the Western Australian Museum and Mr. F. G. Forman 
of the Geological Survey of Western Australia. From Dr. Muir-Wood, Mr. 
Brighton, Professor Clarke and Professor Wanner of Bonn I have received 
