444 Journ. of the Asiat. Soc. of Bengal. [Nov. & Dec., 1915. 
these weeds the majority of the aquatic insects found in the 
rmer occasionally enters the lake, but it is prob- 
able that the latter do not do so. Neither prawns nor fish 
were found in water that was strongly saline or of a high 
natural temperature, though Cyprinodon occurs abundantly in 
Q 
salt springs near the Dead Sea. As is often the case in the 
small pools on or nea the shore than in the main body of 
water and this is also true of insect life, even where macro- 
scopic vegetation is absent. 
B. GeEnerat DistrRisurtion. 
The list of the fauna of the Tiberias basin printed on pp. 
438-441 gives the names of all the named species of animals 
other than insects and Protozoa that have been found either 
in the lake, in small springs and pools in its immediate vicinity, 
. i ie Jordan at the points at which it enters and leaves 
the lake. 
. but representatives of the roup occur commonly in sponges 
and among algae. Several species of Oligochaeta not included 
in the list have been found only in an immature and therefore 
onidentieble cond tion, and my collection of Hydrachnida 
ed out 
mately 15x 5 miles) and the fact that most of the water is 
distinctly brackish, is therefore by no means a poor one 4 
i excellent material for a discussion of the distribution 
vie of the Jordan valley, of which it forms a very important 
Mins geographical range of the species can be discussed 
most conveniently group by group. 
