252 Journal of the Asiatic Society of Bengal. [June, 1913. 
CARAPACE, PROPODUS oF 5TH | 
LENGTH + BREADTH, LEG, BREADTH + | - 
x 100. LENGTH x 100. ef 
- i © 
5 Sey See aE ARERR 
. | g . g 3 
5 PSE & 3 e 
pore ete q eB ia 
| ied head a fr S * : 
ont Oo | 3s om oO S ° 
a | ee ee eee ee 
Potamon potamios | 794 80-1 | 821) 441 | 51°68 | 55-0] 7 
| | 
>, fluviatile fluviatile.. 36-0 87-0 | 88-1 | 43-2) 46-1 | 49:2] 6 
| | | | 
» sy Dericum ..) 78-2) 81-7 | 860 | 48:8 53-4 | 59-0 | 18 
| | 
» 5, gedrostanum | 754 819) 843] 465 | 53:5 | 58-4 16 
= PEERS EST | ; 
From this table it would seem that in their proportions, 
Egypt and of the valleys of the Jordan and its tributaries; it 
possibly the Eastern Himalayas and the Khasi Hills in Assam. 
In Northern Africa it is found in 
i 
Race fluviatile, 
Italy, Greece, Morocco, Algiers, Tunis, the Sahara. 
Race ibericum, 
The Crimea. the Caspian Sea, Asia Minor, Northern Syria, 
Persia, Afghanistan and the Jhelum Valley in N. W- 
India. 
Race setiger, 
Northern Syria, Mesopotamia. 
