HORN EXPEDITION—CRUSTACEA. 
245 
small degree of convexity, though not as pronounced as in the Running Waters 
example. The usual small spine on each side of the rostrum near its distal end is 
absent. The chehe are broader in proportion to their length than in the typical 
form, and the claws are stouter and stronger. Taking the greatest length of the 
propodite as 100, the average measurements of the Running Waters specimens, as 
compared with those of a series of twelve taken from the Melbourne University 
pond, are as follows :— 
Length of dacty- Length of pro- Breadth of 
lopodite. podite. propodite. 
Running Waters specimen - - 47 ... 100 ... 44 
Melbourne specimen - - 44 ... 100 ... 35’2 
The tubercles on the inner edge of the propodite are only nine or ten instead 
of about fourteen, and those pn the upper edge of the meropodite are somewhat 
smaller than in the southern form. The outer antennte are only three-quarters of 
the usual length. 
In all other respects the specimen agrees exactly with the description and 
figure as given by Prof. Sir F. McCoy in his Prodronius of the Zoology of 
Victoria. 
Locality .—One spirit-specimen was brought from Running Waters and two 
dried chehe from Hermannsburg. It occurs fre(}uently in water-holes along 
the Finke, Macumba and Stevenson Rivers, etc. 
Telphusa. 
(11) Telephusa tninsversa, von IVIartens. 
Reference—E. von Martens, Monatsber. Akad. Wiss. Berlin, 1868, p. 609. 
Has well Catalogue of the Australian Stalk and Sessile-eyed Crustacea. Aust. 
Mus. Sydney, 1882, p. 85. 
This was found in considerable numbers forming burrows in the muddy banks 
of water-holes. As the latter were rapidly drying up, the animal in all likelihood 
is able to retain moisture enough in its burrow to enable it to withstand a 
considerable period of drought. It was never met with in the more sandy creeks, 
but only in the water-hole.s, the sides of which, during the dry season, form a hard 
clayey material. The carapace of a large male measures 48 mm. in breadth and 
36'5 mm. in length ; that of a large female measures 44*5 mm. in breadth and 
33 mm. in length. 
