CYPROIDEA. 1285 



Cypris speciosa. 



Oblonga, subovata, antich angustior, subtus fere recta, vix excavata, alio- 

 que bene arcuata, latior et plus duplo longior qucim alia; ad marginem 

 anticum pubescens, posticum breviter ciliata. Flava et Icetd viridis, 

 areis flavis paucis imperfectis viridi circumdatis. 



Oblong, subovate, narrower anteriorly, below straight or scarcely 

 excavate, the margin in other parts regularly arcuate, broader than 

 high, and length more than twice the height ; pubescent on the an- 

 terior margin, short and sparsely ciliate behind. Colour yellow and 

 green, consisting of a few large irregular areas, more or less perfectly 

 surrounded by broad bands of bright green, and margin also green. 



Plate 90, fig. 6, animal, enlarged. 



Pool of standing fresh water, near Rio Janeiro, Brazil. Collected 

 in December, 1838. 



The antennae were usually extended out as far as one-third the 

 length of the shell, or rather more. The last joint of the first pair of 

 legs is long. The colours are so arranged that there is an irregularly 

 polygonal area of yellow near the centre of the side, and six or seven 

 other imperfect areas around ; the latter above and below are short 

 and broad, elsewhere long. The green colour is a bright grass-green. 



Cypris speciosa, Dana, Proo. Acad. Nat. Sci., ii. 49. 



Cypris chilensis. 



Latere visa, subovata, pone medium parce altior, subtus paululo arcuata, 

 dorso vix gibbosa, triplo longior quam lata, duplo longior quam alta, 

 marginibus antico infero posticoque pubescentibus. Antennas anticw 

 7 '-articulatm, setis dimidio corporis vix longioribus. 



Subovate (in a side view), a little the highest behind the middle, 



322 



