mist OF EN TOMOST RA CA COM DE CLE Do EN 
SEES TAN AND “THe BAY CH Ser SB Ri 
By RoBERT GuRNEY, M.A., F.Z.S. 
[The few Entomostraca mentioned in Mr. Gurney’s list are the only fresh- 
water Crustacea we saw in Seistan except the crab Potamon (Potamon) Pota- 
mios gedvostanum, Alcock, and certain small Ostracods abundant in springs in 
the desert. Owing to some accident no specimens of the latter were collected. 
The crab was found in considerable numbers buried in the mud at the bottom 
of pools of foul water in the bed of the Randa stream near Jellalabad. No 
trace of it was, however, observed in the Hamun-i-Helmand. Mr. S. W. Kemp 
has compared a series of specimens from Seistan and from Quetta, where it 
was seen in an active condition in winter, and can find no local difference. Inthe 
hill-country of Baluchistan, which is not represented in the collection examined 
by Mr. Gurney, at least two species of Amphipods are common in, springs.— 
N. Annandale. | 
(1) NASRATABAD, SEISTAN. Pools on Parade ground. 
27-xi-18. 
These pools were pits from which clay had been dug for bricks. 
There was a luxuriant growth of Zannichellia, but the water was 
very foul, being visited by large numbers of donkeys and camels. 
Daphnia magna Straus. Abundant. 
Simocephalus vetulus O.F.M. Abundant. 
Cyclops strenuus Fischer-Sars. 
me leuckartt Claus. 
Eucypris clavata Baird. Common. 
Ilyocypris bradyi Sars. 
Potamocypris villosa Jur.. Common. 
(2) NASRATABAD, SEISTAN. Irrigation channel. Ig-xii-18. 
Leptestheria tenuis Sars. A single male specimen. . 
I do not feel at liberty to dissect this specimen, but it agrees 
so closely in external appearance with L. tenuis that I have no 
hesitation in so naming it. 
(3) LAB-I-BARING, SEISTAN. Channelsin reed-beds in Hamun. 
Io-xti-18. 
The collection was made in small pools about 8 feet deep, 
blocked with Potamogeton pectinatus. 
Daphnia longispina var. rosea Sats. Rare. 
Certodaphnia puichella Sars. Common. Ephippial females seen. 
aa reticulata Jur. A few. 
Simocephalus vetulus O.F.M. 
Bosmina longirostris O.F.M. Two seen. 
Cyclops viridis Jur. One female only. 
Herpetocypris reptans Baird. One only. 
Free ephippia of Daphnia magna. 
