664 REPORT—1885. 
33. Lichenopora variabilis, D’Orb., op. cit. p. 696 
= Bimulticavea, id., D’Orb., ‘ Pal. Fr.’ 
Locality : Aldinga. 
34. Heteropora (sp.), op. cit. p. 696. 
Locality : Curdie’s Creek. 
Fossil Cheilostomatous Bryozoa from Aldinga and the river 
Murray cliffs, South Australia. A.W. Watsrs, F.G.S., ‘ Pro- 
ceedings of the Geol. Soc.’ No. 467, 1885, p. 57, and § Quart.. 
Journ. Geol. Soc.’ Aug. 1885. 
I had already placed in the hands of the printer a digest of the above, 
compiled from Mr. Waters’s paper on the Australian ‘ Cyclostomata,’ &c- 
and from the ‘ Abstracts,’ &c. of the Geological Society. Mr. Waters’s 
full paper, however, came into my hands while the proofs of the present 
report were being corrected, and I prefer to give the fuller digest rather 
than the brief abstract prepared. 
The paper is one of the most important issued by the author, and its 
value as a critical production cannot be lightly estimated. In the body 
of my report I have stated my views with regard to the details of Mr. 
Busk’s monograph on the ‘ Challenger’ dredgings, and Mr. Waters criti- 
cises rather freely the work in question. So far as structural features, 
in certain species, are concerned, either author is capable of taking care 
of the opinions expressed, and it is to be hoped that the moot-points raised 
both by Mr. Busk and by Mr. Waters will be duly considered by special- 
ists before venturing to give undue preference to any classification 
founded upon mere habit. With regard to the plan adopted in the 
present report I may be permitted to offer a few remarks, with the new 
evidence of Mr. Waters before me. 
After the issue of Mr. Busk’s monograph two courses were open to 
me—either to adopt his classification, and ignore that of Mr. Hincks, or 
to adopt that of Mr. Hincks and ignore that of Mr. Busk. In either case 
I should have had to rearrange the whole of the species differently placed 
to the plan which I might choose to adopt, thus taking upon myself a 
responsibility that I had no care to face. The course I have adopted is a 
medium one, and I do not think that by it I shall raise any undue oppo- 
sition to the plan of the report. My desire has been, in the compilation 
of these six reports, to lay before the students of Fossil and Recent 
Polyzoa as full a digest as possible of work done, altogether irrespective 
of the mode or plan of the different workers. This free-hand dealing 
with all manner of investigations has been misunderstood by some few 
critics, but I do not regret that my labours have been so differently 
regarded. From Mr. Busk, Mr. Hincks, and from Mr. Waters, I do not 
fear their adverse but friendly suggestions, for all three know too well 
the difficulties to be encountered in a work like the present one. 
The collection described furnishes 73 species, of which 46 are known 
living, and 8 are new. This brings up the number of described fossil 
Australian Polyzoa to 220, of which just about half have been found 
living. ‘The new species and varieties in this list are marked with an (*) 
after Mr. Waters’s name. 
pe ni eimai NI WON me 
