FRESHWATER AND LAND CRAYFISHES OF AUSTRALIA 
41 
setae on the under surface of the great chelae, on the third 
maxillipedes, and on all the mouth parts. 
Thirty specimens from the above localities examined. 
Engaeus quadrimanus sp. nov. 
(PI. VIII, fig. 32.) 
Length of average adult specimen, 80 mm. 
Rostrum reaching almost to base of third segment of first antennae, apex 
blunt and straight; carinae blunt, reaching to apex. 
Eyes large. First antennae with inner flagella seven-eighths as long as 
outer. Squarne of each second antenna broad, terminal spine long and 
sharp. Interantennal spine long, broadly triangular, sharply pointed. Exo- 
pods of third maxillipedes long, fully developed. 
Carapace as long as abdomen, cervical groove feebly impressed laterally, 
deeply impressed posteriorly, branchio-cardiac grooves feeble, areola narrow. 
Branchiostegties and anterior of carapace tuberculate. 
Sternal keel raised and sharp; first two pairs of lateral processes small 
and blunt, third pair sharp, posterior pair fairly large, blunt and deeply 
grooved; each of the lateral processes with a small but conspicuous round 
opening, largest on third pair; processes between fourth pereopods long 
and stout, not joined above. 
Telson broadly cone-shaped with a spine on posterior-lateral margins; 
uropods large and rounded, as long as telson, inner rami each with a 
longitudinal median carina ending in a spine almost on posterior margin, 
outer lateral margin with a spine near posterior margin; outer rami each 
with a longitudinal median carina, transverse suture placed at apical third, 
several small sharp spines along suture. 
Great chelae minutely tuberculate ; propodus stout, twice as long as broad, 
upper margin with a single row of large tubercles, lower margin with a 
smooth carina, cutting edge with two or three large and several small 
tubercles; dactylus with a large compound tubercle and a few small simple 
tubercles on cutting edge, upper margin with a smooth carina; carpus and 
merus each with a row of small tubercles on upper margin. 
Posterior pleurobranch long, well developed. 
Colour .- — In general apearance dark olive-green shading into light green 
on telson and lateral margins of carapace and abdomen. Dactylus and anterior 
of propodus, upper and posterior margins of propodus, carpus and merus 
dark olive-green; remainder of chelae shading from light green to cream- 
buff. 
Habitat. — Victoria: Warragul (type locality) (W. Kershaw, 1888) ; Lakes 
Entrance (W. Kershaw, 1887) ; Derby River, Wilson’s Promontory (J. A. 
Kershaw, 1905) ; Ferntree Gully (S. W. Fulton, 1906) ; Croydon (S. W. 
Fulton, 1907); Mt. Dandenong (S. W. Fulton, 1910); Warburton (F. J. 
Williams, 1871); Skipton (C. E. Austin, 1935); King Island (G. Mack, 
1935). 
Types in the National Museum, Melbourne. 
Widely distributed throughout Victoria, south of the Main 
Divide. This species was described and figured by Smith and 
Schuster (1913) as E. cunicularius Er., but is readily distin- 
