228] 
RECORDS OF IV. A. MUSEUM . 
REVISION OF THE 
FRESHWATER CRAYFISHES 
OF SOUTH-WESTEEN AUSTRALIA. 
BY 
allan r. McCulloch, 
Zoologist, Australian Museum. 
Plates XXXII to XXXV. 
Most of the material on which the following notes are based, 
was received in January 1912 from Mr. Bernard H. Woodward, 
Director of the Western Australian Museum. At my request, he 
very kindly collected together a large series of specimens of all 
sizes from various scattered localities. These prove to belong t6 
three species of the genus Cheraps, and may be reasonably supposed 
to be representative of the fresh- water crayfishes of South-western 
Australia. I am indebted, also, to Mr. W. B. Alexander for 
information on other specimens, since received by the Western 
Australian Museum. There are also a few examples in the 
Australian Museum which were collected near Perth and at Albany 
by Mr. A. Abjornssen, Inspector of Fisheries, Western Australia. 
While engaged on the preparation of these notes I learnt that 
Mr. Geoffrey Smith was to read a paper before the Zoological 
Society of London on the crayfishes of Australia, and I preferred to 
avoid confusion by waiting until it had been published. 1 Thegreater 
part of the material available to him was collected in Tasmania and 
Victoria, though he had a few specimens from South-western 
Australia. Those I have examined belong to the same species as 
1 entitled by him, but having a large and apparently representative 
series of each, I have been able to describe and figure some 
noticea ble variations in their specific characters. 
912, pt. I., pp. 144-171, pis. XI V-XXVII. 
1 Smith, Proc. Zool. Soc., 1 
