FRESHWATER AND LAND CRAYFISHES OF AUSTRALIA 
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lateral margins ; outer rami each with four or five sharp spines along trans- 
verse suture. 
Great chelae slender, propodus twice as long as broad, feebly tuberculate 
on upper margin, lower margin smooth ; dactylus straight, inner margin 
smooth or feebly tuberculate ; cutting edge of propodus feebly tuberculate, or 
with a large compound tubercle ; upper margin of carpus and merus smooth 
or feebly serrated. 
Posterior pleurobranch long and . well developed. 
Habitat. — Tasmania: Glenore, near Hageley (A. Bartholomew, 1889); 
Launceston (A. Bartholomew, 1889) ; Mundan Farm, Longford (A. 
Bartholomew, 1889). 
Types in the Berlin Museum. 
Nineteen specimens from various localities were examined. 
Engaeus phyllocercus Smith and Schuster. 
(PL VIII, fig. 33.) 
Engaeus phyllocercus Sm. and Sch., Proc. Zool. Soc. Lond., 1913, 
p. 122. 
Length of average adult specimen, 60 mm. 
Rostrum broad, reaching to base of third segment of first antennae, apex 
sharp and upturned; carinae sharp, carried well back on to carapace, 
anteriorly reaching apex. 
Eyes small. First antennae with inner flagella two-thirds as long as outer, 
slender. Squame of each second antenna very slender, ending in a short sharp 
spine. Interantennal spine broad, rounded or bluntly pointed. Exopods of 
third maxillipedes rudimentary or in the form of a short papilla, in some 
examples exopods absent. 
Carapace punctate, as long as abdomen, cervical groove and branchio- 
cardiac grooves deeply impressed, areola fairly broad. Branchiostegites 
minutely tuberculate. 
Sternal keel moderately sharp ; first three pairs of lateral processes small 
and sharp, posterior pair rounded, deeply grooved ; processes between fourth 
pereopods slender, not joined above, on some examples stout and joined above. 
Telson cone-shaped, with a spine on each posterior lateral margin ; inner 
rami of uropods slender, longer than telson, each divided by a longitudinal 
median carina ending in a long sharp point beyond posterior margin, a sharp 
spine on outer lateral margin; outer rami each with a longitudinal median 
carina ending in a blunt point on posterior margin, transverse suture placed 
at apical third, five or six small sharp spines along suture. 
Great chelae punctate ; propodus stout, twice as long as broad, margined 
by a row of large tubercles on upper surface, dactylus and anterior of pro- 
podus long and slender, each with one tooth on cutting edge ; carpus and 
merus each with a row of tubercles on upper margin. 
Posterior pleurobranch rudimentary; in some examples well developed. 
Colour . — General colouring orange-scarlet; telson, lateral margins of 
carapace and abdomen light yellowish-brown. Great chelae : upper surface 
deep orange-scarlet, yellowish-brown on under surface, carpus and merus 
shading to brown. 
Habitat. — Victoria: Narracan (W. Kershaw, 1889); Thorpdale (W. 
