45 
in isses seeing them. 1 1 seem s to me very probable that similar 
lakes would all produce Leptodora if searched in this manner. 
The ones we obtained, although not all fully grown, were all 
in the mature stage, none seemed to have ova. 
Besides this I got from this lake of Entomonstraca alone 
nine other species, viz : — 
Polyphemus Pediculus , remarkable for its enormous eye 
and rapid movements. 
Bosmina Longirostris , a comical fellow whose superior 
antennse have the appearance of two eiephants’ trunks. 
Sida Chrystallina. 
Daplmella Wingii. 
Alona Quadrancularis. 
Chydorus Sphcericus. 
Dioptomus Castor , with its enormously long antennse ; 
of this we only saw one male amongst the numerous speci- 
mens examined; it is easily distinguished from the female by 
the thickened joints in one of its antennse. 
Cyclops Quadricornis, and a beautiful variety of 
Daphnia Pulex, of a greenish colour, having the carapace 
terminated by a long tail-like spine. This spine is a portion 
of the lower edge of the carapace, being strongly serrated. 
Of these all but the last two species were new to me, as 
they do not occur in any of the ponds, etc., I have examined 
in this district. 
Amongst the Infusoria found were Melicerta ningens, 
having very large, light-coloured, fluffy pellets, very different 
to the small, dark, hard bricks composing the cell of those 
found about here. 
Floscularia Ornata . 
Uroglcna Volvox. 
The lovely dark green Vorticella Chlorostigma, and 
Vaginicola Valvata. In this last, which occured abundantly, 
the valve was distinctly seen, closing the sheath in an 
oblique direction. It is situated about one third of the 
