Egyptian Moll ii sea 99 



Teilhard has found it in abundance at Matarieh and occasionally 

 in the Wadi Hoff near Helwan. 



Calaxis unidentata, Jickeh, 1874. 

 Collected with L. sennaaricus from mud dredged in the ponds 

 at the Giza Zoological Gardens. 



I i 



Fig. 60. — Calaxis unidentata. (x 3.) 

 Keported as common at Matarieh and around Alexandria. 



SUCCINEID^. 



Succinea cleopatra, Pallary, 1909. 



('? Succinea cegyptiaca, Ehrenberg, 1830.) 



Several specimens collected from reeds in marshy land on the 

 desert side of the Ismailia Canal south of Bilbeis. A single 



1p w 



Fig. 61. — Succmea cleopalrce. (x IJ.) 



example taken on the Sweet Water Canal near its connection with 

 Lake Timsah. 



Reported from the Mahmoud Canal and Lake Hadra near 

 Alexandria, and from Nefisha near Ismailia. 



Planorbid^. 

 Planorbis hoissyl, Potiez and Michaud, 1838. 



Next to Bullinus dyhowski this is the commonest mollusc in 

 the small canals and ditches round Marg. We found it plentiful 

 also on the road to Bilbeis from the south in a small canal running 

 parallel to the Ismailia Canal. In the marshes to the south-west 

 of the town of Ismailia it was also abundant. In other localities 

 where we collected around Cairo and in the ponds of the Zoological 

 Gardens it appeared to be entirely absent. 



