246 
HORN EXPEDITION—CRUSTACEA. 
Distribution. —Water-holes along the Achninga and Stevenson Creeks and 
Charlotte Waters (Central Australia), Cape York (Diimels), Thursday Island 
(Haswell). 
DESCRIPTION OF PLATES. 
Plate XX. 
Fig. 1.— Apus australiensis. Dorsal view. x I. 
„ 2.— Apus australiensis. Dorsal view of posterior end of abdomen, telson, 
and proximal end of caudal appendages. x 3. 
t 
,, 3.— Apus aU'traliensis. Antenme, labrum and mandibles seen from 
below. X 2. . 
,, 4.— Estheria lutraria. Portion of carapace highly magnitied to show the 
sculpturing. 
5.— Estheria lutraria. Telson. Highly magnitied. Drawn under the 
camera lucid a. 
,, 6.— Estheria dictyon. Dorsal and lateral view of carapace, x 6. Drawn 
under the camera lucida. 
,, 7.— Estheria dictyon. Portion of carapace highly magnitied to show the 
sculpturing. 
,, 8.— Estheria dictyon. Telson. Highly magnified. Drawn under the 
camera lucida. 
Plate XXI. 
Fig. 9.— Estheria packardi, var. typica. Dorsal and lateral view of carapace. 
Much enlarged, the natural size is indicated by the cross lines. 
,, 10.-— Estheria packardi., var. typica. Portion of carapace highly magnified 
to show the sculpturing. 
,, 11 .—Estheria packardi, var. canccllata. Dorsal and lateral view of cara¬ 
pace. Much enlarged, the natural size is indicated by the cross 
lines. 
,, 12.— Estheria packardi, var. cancellata. Portion of carapace highly mag¬ 
nified to show the sculpturing. 
