AUSTRALIAN FRESHWATER AND LAND CRAYFISHES 
37 
less at posterior margin, the transverse suture placed at apical third, several 
small sharp spines along the suture. 
Pereopods stout. 
Great chelae large and stout. Propodus twice as long as broad, with a few 
scattered punctures on upper surface, upper margin serrated, lower margin 
smooth, apex sharp, cutting edge with a few small tubercles, margin formed 
into a peculiar curve into which the cutting edge of the dactylus conforms. 
Dactylus slender, sickle-shaped, with a few scattered punctures on surface, 
upper margin smooth, cutting edge with one small tubercle near base, apex 
sharp, incurved; propodus and dactylus gaping when closed. Upper margin 
of both carpus and merus serrated. 
Co/o!<r.— General appearance from above, light chocolate brown, translucent 
blue below. Anterior-lateral portion of carapace dark blue; branchiostegites 
buffy-brown above, fading to grey below. Telson and lateral margins of 
abdomen buffy brown ; uropods light buffy brown tinged with blue. Propodus 
and carpus dark amber above, lighter on lower margins, bluish sheen below at 
apex, shading to cream at base ; merus light amber at apex, fading to honey 
at base, with a large bluish area below ; dactylus brownish blue above with a 
bluish sheen below. Pereopods translucent cream, tinged with blue. 
Habitat. — Victoria: Grampian Mountains (E. Clark). 
The peculiar shape of the great chelae distinguishes this 
species from all other known members of the family. 
Very abundant in the swamp at the head of the Wannon 
River and Fyans Creek. The burrows descend vertically 
three or four feet, and almost invariably contain only one 
occupant. 
Genus ENGAEUS Erichson 
Astacus (Engaeus) Erichson, Arch. f. Naturg., xii, 1846, p. 102. 
Engaeus, Huxley, Proc. Zool. Soc. Lond., p. 769, 1878; Smith and Schuster, 
Proc. Zool. Soc. Lond., 1913, p. 118; Clark, Mem. Nat. Mus. Viet., x, 
1936, p. 37; Clark, Proc. Roy. Soc. Tasmania, 1938, p. 122. 
The genus Enejaeus is found in Victoria and Tasmania. Of 
the fourteen known species, ten have been found in Victoria, 
the most widely distributed species being E. quadrimanus 
Clark; it has been found all through the southern half of 
Victoria, as far north as Benalla, and also on King Island. 
Since the publication of the previous revision (2), E. vic- 
toriensis, Sm. & Sch., has been collected at Mooroopna and 
Shepparton, on the hills around the Goulburn and Broken 
Rivers. It is noteworthy that both E. victoriensis and 
E. quadrimanus are found along the banks of the Broken 
River, E. quadrimanus being found abundantly between 
Benalla and Mansfield. These two species are found together 
at Warburton, Croydon, Ferntree Gully, and in south Gipps- 
land, E. quadrimanus inhabiting the swamps and water- 
courses, whilst E. victoriensis burrows in the drier land, 
usually on the slopes of hills. 
