OF NEW SOUTH WALES. 147 



much more information to say a species is found in it, than to say- 

 it is found in Europe or America. I venture to say that there is 

 as much difference between the marine fauna of North and South 

 Australia, as there is between that of East and West America, 

 Specimens have been sent to museums from various parts of 

 Australia, and as far as I am aware, with but little satisfactorily 

 recorded as to the precise habitat, habits, or bathymetry of any 

 species. It is therefore with considerable pleasure that I accepted 

 the request of Mr. Macleay to describe the Echini collected by 

 him in the Chevert Expedition, together with those contained in 

 his extensive museum at Elizabeth Bay. It will scarcely surprise 

 any one to learn that only three new species have come under my 

 notice, as the order has been so very exhaustively treated by 

 Professor Agassiz. The new species are 1st, a small Echinus, E. 

 Damleyensis, which was found rather abundantly at Darnley Island 

 and which is very near to a South American species, E. magella- 

 nicus, which is known to occur at New Zealand ; 2nd, a new 

 Evechinus, E. australis ; 3rd, a new Echinanthus. But 

 while finding but three new species, I have been able, 

 from this collection, and from my notes made at the various 

 Australian museums, and my own observations on the 

 coast during many years, very much to increase the list of the 

 Australian Echini fauna. I think I may say also that I have added 

 some information as to habits and habitats. Unfortunately, no 

 Australian collection that I am acquainted with is well supplied 

 with our common Australian genera and species, and none have 

 series to illustrate the modes of growth, so that I am unable to 

 add anything to our knowledge in this direction, and that 

 knowledge is very meagre indeed. 



I find from my investigations into the matter, that Australia 

 may be divided into three provinces : — I. The N. Eastern. 2. 

 The Eastern. 3. The Southern. I do not deal with the 

 Western fauna, for I know so little of it, that my remarks would 

 possess no value. The Southern has a peculiar fauna which 

 possesses what are called the truly Australian genera, such as 

 Amblypneustes, Hulopneustes, M.icrocyjphus } and Linthia. The 



