UIG 2 
29. THE GEELONG NATURALIST. 
tive, the most delicate contact is noticable. This sensitiveness I 
perceived on touching delicately the antennw with a very soft 
camel’s hair brush, even the touch of a single hair caused the 
creature to move, so highly sensitive is this organ. 
The hinder appendages near the tail are used also for swimming, 
but more especially, I think, for supporting itself when in an 
upright or sitting position. The tail is very powerful, and is used 
to spring or jump with. Hight segments from the carapace thorns 
are slightly developed, the ninth segment thorns are developed, 
the tenth and posterior segment thorns are highly developed. 
These thorns are used for offence and defence, which I found out 
practically. The specimen given me I kept alive for several days 
in a glass aquarium, and closely watched its movements. Seldom did 
I find it in a crawling position, but mostly sitting up upon its tail, 
supported by the hinder appendages already alluded to. At the 
least movement of my hand in front of the aquarium, the creature 
would make a spring, dart in a curved position to the bottom of the 
aquarium, coming up again upon its tail, this evidently being, I 
think, the natural position of these crustaceans in the deep. 
Section under Flinders Fyansford Hill Half-way between Dog 
School. Orphanage, Rocks & Fyansford. 
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Hall & Sons, Printers, Geelong. 
. 
