OLIGOCENE ECHINODERMATA. 177 



Locality. — Johnsons Sink (type specimen A), Levy County (type specimens B and G), Fla. 

 Geologic horizon. — Vicksburg group, lower Oligocene. 



Collections.— U. S. National Museum (1378S1, A); Wagner Free Institute of Science (B); 

 Museum of Comparative Zoology. 



Class HOLOTITUKIOIDEA. 



Order PARACTINOPODA. 



Family SYNAPTID.E. 



Genus CHTRODOTA Eschscholtz. 



Chirodota sp. 

 Chirodota sp. Cunningham, 1895. Am. Micr. Jour., vol. 16, pp. 193-196, and figs. 1 and 2. 



Description. — Small holothurian plates are figured by Cunningham and referred to the genus 

 Chirodota. No material has-been accessible for the present investigation. 



Locality. — -Near Red Bluff station, Chickasawhay River, Clarke County, Miss. 



Geologic horizon. — Vicksburg limestone, lower Oligocene. 



Collection. — K. M. Cunningham, Mobile, Ala. 



Genus SYNAPTA Esehscholtz. 



Sytstapta sp. 



Synapta sp. Cunningham, 1895, Am. Micr. Jour., vol. 16, pp. 193-196, and figs. 3-6. 



Description.- — Fragments of small plates and a spicule are figured by Cunningham and 

 referred to the genus Synapta. No material has been accessible for the present investigation. 



Locality.- — Near Red Bluff station, Chickasawhay River, Clarke County, Miss. 



Geologic horizon. — Vicksburg limestone, lower Oligocene. 



Collection. — K. M. Cunningham, Mobile, Ala. 



