238 Proceedvngs of the Royal Society of Victoria. 



total of 22 species, with descriptions and figures of five new 

 species. It is intended to issue the present catalogue in parts, 

 and we hope to cover the ground in four parts of about the size 

 of the present issue. We cannot yet with certainty give a 

 summary of the whole catalogue, but the present part contains: — 



Cephalopoda - - - - 1 2 species 

 Pteropoda - - - - - 11 ,, 



Gastropoda- - - - - 62 ,, 



At tlie conclusion of the fourth part a complete sunnuary will 

 be given. On account of the difficulty and occasionally the 

 impossibility of obtaining access to many of the original papers 

 and books on our shells our labour has been very much increased 

 and frequently great trouble has arisen in settling questions of 

 priority. Also when in doubt as to the interjDretation of figures 

 and descriptions we have felt very strongly the necessity for 

 examining the types, and this very frequently we have been 

 unable to do. We include references to the few types accessible 

 to us for the benefit of other workers who may not know where 

 they are located. There seems to be a very great necessity for a 

 more general knowledge of the rules to be adhered to by all workers 

 in zoological subjects. Endless trouble would be saved if consis- 

 tent methods could in some way be enforced. As far back as 1864 

 a committee of the British Association for the Advancement of 

 Science submitted a series of regulations for zoological work, 

 which, if only attended to, should have had good results. More 

 publicity should be given to the general rules accepted by 

 zoologists, and if this were only done much needless confusion 

 and perhaps some synonomy might frequently be saved. 



We have to tender our sincerest thanks to Sir Frederick McCoy 

 for the loan of the most impt)rtant standard works, without which 

 we would have been unable to do any satisfactory work, also for the 

 readiness with which he has allowed us access to the molluscan 

 specimens in the National Museum. We are also much indebted 

 to Mr. W. Kershaw of the Museum for his kind attention and 

 I'eadiness to find what we required at any time. 



We have also to thank Professor W. B. Spencer and 

 Mr. T. S. Hall, M.A., for the loan of books, pamphlets, and 

 specimens; and Mr. C. Hedley of the Australian Museum and 



