On Fresh-water Entomostraca. 55 



Cypris, both pairs of antennæ being provided with very- 

 long natatory setæ, and the masticatory lobes of the 1st 

 pair of maxillæ exhibiting the usual narrow, digitiform shape. 



The caudal rami (fig. 3 c) are moderately strong, nearly 

 straight, and but slightly narrowed distally. Their armature 

 is the usual one, the outer claw being the longer, though 

 not attaining half the length of the ramus. 



Observations. — Some few specimens of this form 

 developed in one of my aquaria, and were watched for some 

 time. They did not, however, multiply to any great 

 extent, and after the lapse of some mouths, no specimens 

 were to be found in the aquarium. The animal is rather 

 active, moving about through the water with great speed, 

 at times affixing itself to the walls of the aquarium. 



Occurrence. — The mud from which this species deve- 

 loped, was taken by Mr. Whitelegge from ponds and ditches 

 at Bourke Street. Several well-preserved specimens also 

 occurred in a sample taken by that gentleman from the 

 same locality. Mr. King collected the species from a pond 

 in a brickfield, near Sydney. 



Gen. Candonocypris, G. O. Sars. 



22. Candonocypris candonoides, King. 



Cypris candonoides, King, 1. c, p. 66, Pl. X F. 



Herpetocypris stanleyana, G. O. Sars, On some Ostra- 

 coda and Copepoda raised from dried Australian mud, p. 35, 

 PI. II, figs. 1—2, PI. V, figs. 5—7. 



This form, whose identity with Cypris candonoides 

 of King, I have stated in my paper on the New Zea- 

 land Entomostraca, developed rather abundantly in several 

 of my aquaria, and was also found in great numbers in some 



