3 10 Zouloyy.

Soft-backed river Turtles ( Tnonyx) are plentiful. A common land Tortoise is Testudo calcarata : a common aquatic Tortoise is Sternofharuii adansoni.

Of snakes the lai-gest is Python sehcc ; of poisonous species the Cobra, the Homed Cerastes, and, further south, the Puff- Adder occur : harmless species are more numerous. On the whole, snakes in the Sudan are not plentiful enough to he troublesome, and the mortality due to snake-bite seems insignificant.

Batrachians are rather poorly represented : a Toad {Biifo regularis) very like the common European species is the most abundant.

Fish.

The Nile fish have recently been very thoroughly investigated, the collection formed by Mr. Loat, under the auspices of the Egyptian Government, being the largest ever brought togetlier from one country.

Those interested in the subject may note tliat the scientific results of the " fisli survey " will shortly be published in the form of a Monograph, by Mr. G. A. Boulenger.

[Briefly speaking, it may be said that the rivers swarm, almost throughout, witli fish ; they are mostly of a coarse kind, some running to an immense size — 40 to 50 lbs. being quite an ordinary weight for some species. — Note by Editor.]