28 
REVISION OF THE GENUS EUASTACUS 
the Marshes emerge two Rivers — one passing Deniliquin is named the 
Edward, while the other passing Echuca, retains the title of the Murray; 
but in times of high flood at least, it would be more correct as far as the 
source of the water might govern the question, to call the Edward the 
Murray — and the Murray the Goulburn. 
Following on with the Murray, it, after receiving the Campaspe contri- 
bution at Echuca, has a very short existence as a normal stream, entering 
another series of marshes, which may be termed the Gunbower Marshes, 
just below Perricoota. From this network of swamps and flooded areas, 
emerge the Gunbower Creek with its attendant system, leaving in the main 
channel running between Murray Downs and Swan Hill, only an insignifi- 
cant remnant of the original flood volumes poured in by the Upper Murray, 
the Ovens, the Goulburn, the Campaspe and other tributaries. 
Below Swan Hill, the overflows gradually return until at the Wakool 
Junction the Murray, now restored to its single character, enters the Mallee 
canyon and continues within its confines until it approaches the Murrav 
Mouth Lakes. 
The Edward River below Deniliquin behaves somewhat similarly to the 
Murray River, becoming deltaic in character and spreading across country 
by the Niemur and Wakool River to join the Thule and Merran waters. 
It also picks up the waters of the Billabong Creek, a real river, but mixed 
with overflows from the Murrumbidgee River. It might be said that the 
Murray River ceases at Tocumwal, the Billabong Creek at Jerilderie and 
the Murrumbidgee River at Narrandera. Everything below being a deltaic 
jumble. 
BIBLIOGRAPHY of Euastacus. 
1. Blandowski, W. Recent Discoveries in the Natural History on the 
Lower Murray. Trans. Phil. Inst. Viet., vol. ii, pt. ii, 1858, p. 130. 
2. Clark, E. The Freshwater and Land Crayfishes of Australia. Mem. 
Nat. Mus., Viet., x, 1936, pp. 5-58, pis. i-xi. 
3. Clark, E. The Life-History of the Gippsland Crayfish. Australian 
Mus. Mag., vi, 6, 1937, pp. 186-192. 
4. Dana, J. Family Astacidae. Report U.S. Eplor. Exped., xii. Crust., 
pt. 1, 1852, pp. 520-528. 
5. Erichson, W. F. Uebersicht der Arten der Gattung Astacus. Arch, 
f. Naturg., xii, 1846, pp. 86-103. 
6. Erichson, W. F. Nachtrag zur Uebersicht der Arten der Gattung 
Astacus. Arch. f. Naturg., xii, 1846, pp. 375-377. 
7. Faxon, W. Observations on the Astacidae in the United States 
National Museum, and in the Museum of Comparative Zoology, with 
descriptions of New Species. Proc. U.S. Nat. Mus., xx, 1898, pp. 
643-694. - 
8. Faxon, W. Notes on the Crayfishes in the United States National 
Museum and the Museum of Comparative Zoology, with descriptions 
of new species and subspecies, to which is_ appended a catalogue of the 
known species and subspecies. Mem. Mus. Comp. Zool., xl, no 8 
1914, pp. 351-352, 401-402. 
9. Flecker, H., and P. O. The Haunt of the North Queensland Spiny 
Crayfish. Nth. Qld. Nat. iv, 41, 1936, pp. 18-20. 
10. Gray, J. E. New Species of the Genus Astacus. Eyre’s Journ. Exped. 
Disc., Central Australia i, (Appendix), pp. 407-411, pi. 3. 
