MOINA. 271 



Daphnia Jardinii, Baird. — A small species, described 

 in 1857 by Dr. Baird ; it has the head produced into a sort 

 of spine, while the carapace terminates posteriorly in a long 

 spine. 



Galloway fresh-water loch (Sir "W. Jardine). This species 

 forms part of the food of the trout. 



Gen. 141. MOINA, Baird. 



Head rounded and blunt ; upper antennse of some length, 

 one-jointed, rising from the front of the head, near the 

 centre ; lower antennae very large and fleshy at the base. 



Moina kectirostris, Miiller, sp. — Carapace oval, trans- 

 parent, rounded at the back, and ciliated along the fore- 

 margin. 



Hab. Pond on Blackheath. 



Moina beachiata, Jurine, sp. — Carapace olive-colour, 

 bulging very much behind. Abdomen at the end, with 

 eight short spines, and two long stout claws. 



Hab. Pond on Blackheath. Dr. Baird found this species 

 first in a stagnant pool nearly opposite old St. Pancras 

 Church, in 1844 ; the ground was shortly afterwards built on. 



