FRESHWATER AND LAND CRAYFISHES OF AUSTRALIA 
27 
Length of average adult specimen, 160 mm. 
Rostrum twice as long as broad at base, reaching to base of third segment 
of first antennae, apex sharp, with a spine on each side; carinae blunt; 
lateral carinae blunt, ending in a rounded boss. 
Squame of each second antenna very broad anteriorly, terminal spine 
short and sharp, reaching almost to end of third segment of second antennae. 
Interantennal spine short and broad, bluntly pointed; on some examples 
short, broad and rounded. 
Carapace shorter than abdomen, broader than high, twice as long as 
broad ; cervical groove deeply impressed, areola narrow ; carapace punctate, 
branchiostegites minutely tuberculate. 
Sternal keel moderately sharp, produced to a long, sharp, backwardly- 
directed spine below great chelae ; first two pairs of lateral processes obsolete, 
third pair small and sharp, posterior pair small and very deeply grooved; 
processes between fourth pereopods short and stout. 
Telson with a spine on each lateral margin at junction of membranous 
portion; inner rami of uropods each with a median spine and an outer 
lateral spine at junction of membranous portion; outer rami each with 
several sharp spines along transverse suture. Lobes at base of uropods 
with upper lobe produced to a small blunt spine. 
Great chelae long and stout, propodus two and one-half times as long as 
broad, with numerous large punctures ; upper margin formed by a row of 
large blunt tubercles, lower margin smooth, cutting edge of propodus and 
dactylus feebly serrated. Carpus with a small, blunt forwardly-directed 
spine on upper margin; merus with upper margin feebly serrated. 
Colour. — The Hawthorn series shows the great variety of colours found 
in this species, the following being the colours of various examples : Light and 
dark green ; dark green with blue pereopods and chelae ; dark cholocate- 
brown; brown mottled with red; dark cream-buff mottled with red; pale 
pinkish on carapace and abdomen, with orange pereopods and chelae ; light 
and dark slate-grey. These colours appear to be fairly general for all localities. 
Hale (1925-27) records almost black examples from Broken Hill, New South 
Wales. 
Habitat. — Victoria : Melbourne (type locality) ; Fernshaw (W. Kershaw, 
1879) ; Thorpdale (W. Kershaw, 1890) ; Muckleford Creek (F. L. Billing- 
hurst, 1894) ; Pyramid Hill (E. H. Hennell, 1890) ; Warburton; Mortlake 
(S. W. Fulton, 1905) ; Castlemaine (T. S. Hall) ; Goulburn River; Chiltern 
(J. A. Kershaw, 1905) ; Lake Hattah (J. E. Dixon, 1917) ; Murchison (N. 
Lyons, 1935) ; Yea (J. and R. Drysdale, 1935) ; Somerville (B. Durrant, 
V. McConachy, 1936) ; Hawthorn (L. and R. Jones, T. Quigley, 1936) ; 
Dunolly (A. J. Williamson, 1930); Skipton (E. G. Austin, 1936). South 
Australia : Blanchetown No. 1 Lock (G. Brooks, 1935); Kapunda (H. L. 
Haines, 1935) ; Lucindale (A. M. Lea, 1914) ; Lower Light, via Two Wells 
(H. T. Donnelly, 1935); Happy Valley (P. H. Dodd, 1936); Myponga; 
Mosquito Creek, 8 miles south of Naracoorte (A. S. Dolan, 1935) ; Onka- 
paringa (F. R. Ball, 1936) ; Renmark No. 6 Lock (Kennewell, 1935) ; River 
Torrens (M. McAuna, 1936) ; Straun Creek, 9 miles south of Naracoorte 
(H. A. Lindsay, 1936); Yacka (C. Laube, 1935). Central Australia : 
Macumba River; Finke River; Stevenson River; Charlotte Waters; Run- 
ning Waters; Hermannsburg (Sir Baldwin Spencer). New South Wales: 
Broken Hill (F. W. Shepherd, 1925) ; Manning River (Haswell, 1882) ; 
Mooki River (L. Weatherly, 1936). Queensland: Cape York; Rockhamp- 
ton; Burnett River; Barron Falls (A. Tubb, 1935) ; Dunk Is. (D. A. Casey, 
1936). 
Types in the National Museum, Melbourne. 
