Freshwater Entomostraca of South America. 235 



Genus Candona. 



Sp. 6. C. albida, Dana. 



" Latere visa, breviter subelliptica, extremitatibus fere aequa, 

 late rotundata, subtus recta, supra obsolete gibbosa; triplo 

 longior quani lata, non duplo longior quam aha, margine 

 pubescente. Oculiis margine superno remotus. Albido- 

 margaritacea, postice et siiperne paulo brunnea." 



Valparaiso. 



Length -J^ inch. 



Genus Lynceus. 



Sp. 7. L. nasutus, Gay. 

 " Alboflaviscens, capite elongate inflexo rostriformi ; testa 



postice truiicata, angiilo externo spiniformi." 

 " A very small species, with the head prolonged into a large 

 curved rostrum as in some CircuUomdce ; a small oculiform spot 

 in front of the eye ; carapace truncated behind, and its latero-pos- 

 terior extremities angular, with a strong spine." 

 Colour a pale yellowish, uniform white. 

 San Carlos de Chiloe among confervce. 



Sp. 8. Z. albicans, Gay. 



" Valvis postice rotundatis, inermis." 



" Natatory antennse with long hairs, the oculiform spots dis- 

 tinct; head prolonged into a beak, more thick but less large than 

 that of the preceding species ; inferior and posterior margins of 

 the valves rounded, without angles or spines." 



Colour a transparent white. 



Sante Rosa. 



Described as existing in "Los mares de Sante Rosa." 



This species probably belongs to Dr. Baird's genus Chydorus. 



Sp. 9. L. armatus, Gay. 

 " Albovirescens; valvis postice spiniferis." 

 " The hairs of the antennae and feet are large and short, valves 

 rounded inferiorly and terminated posteriorly by a dentated tail." 

 Colour a very pale greenish white. 

 With the preceding 



