FRESHWATER AND LAND CRAYFISHES OF AUSTRALIA 
35 
Described from six specimens, all of which were dug out of 
burrows in swampy ground. The serrated squame readily dis- 
tinguishes this species from others of the genus. 
Drawings of specimens examined were compared w T ith the 
types in the British Museum (see notes on A. gouldi sp. nov.). 
Astacopsis gouldi sp. nov. 
(PI. VII, fig. 28.) 
Astacus sp. Gould, Papers and Proc. Roy. Soc. Tas., p. 42, 1870. 
Astacopsis franklinii Huxley, Proc. Zool. Soc. Lond., 1878, p. 764; 
Smith, Trans. Linn. Soc. Lond., sec. ser., xi, Zool., p. 70, 1908; 
Smith, A Naturalist in Tasmania, p. 110, fig. 30, 1909; Smith, 
Proc. Zool. Soc. Lond., p. 154, 1912. 
Length of average adult specimen, 375 mm. 
Rostrum broad, apex sharp, almost as broad as long at base ; carinae 
rounded, with three blunt spines on each side ; a sharp longitudinal carina 
in centre of rostrum continued backward from apex about half-way to base ; 
a blunt spine at base of rostral carinae, with a large rounded boss posterior- 
laterally to it. 
Eyes large. Squame of each second antenna smooth, as broad as long, 
inner lobe rounding gradually to a short blunt spine. Interantennal spine 
rather long and narrow, sharply pointed, lateral margins either smooth or 
serrated. 
Carapace longer than abdomen ; twice as long as broad, broader than 
high ; branchiostegites with a few small scattered tubercles and punctures. 
Sternal keel moderately sharp, with a long, sharp, backwardly-directed 
spine below first pereopods; lateral processes large and sharp, largest below 
great chelae, posterior pair deeply grooved. 
First segment of abdomen with a spine on each lateral lobe; second 
segment with five spines on each lateral margin, remaining segments with 
lateral margins each produced to a small spine. Telson as long as broad at 
base, without trace of transverse suture, with a spine on each posterior- 
lateral margin ; inner rami of uropods each with a median posterior spine 
and a lateral spine ; outer rami each with eight or nine spines along transverse 
suture ; lobes at base of uropods with a spine on each upper lobe. 
Great chelae very stout; propodus two and one-half times as long as 
broad, upper margin with three large tubercles, lower margin with one or 
two rows of spines or tubercles, one large and several small tubercles on 
cutting edge; dactylus with one large and several smaller tubercles on 
cutting edge, upper margin with three or four small tubercles ; apex densely 
tuberculate ; ’ carpus with a long sharp spine and a short blunt spine on upper 
margin; merus with five or six small spines on upper margin. 
Habitat.— Tasmania: Circular Head (type locality) (J. Leadbeater) ; 
Zeehan; Mt. Wellington; Gordon River; Brid and Muddy Creeks, Brtd- 
port; Macquarie Harbour; 
Types in the National Museum, Melbourne. 
Generally identified by previous workers as A. franklinii 
Gray, this species differs considerably, particularly in the 
armature of the squame of the second antennae and the carpus 
