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179 



178 



177 



180 



181 



Figs. 177-181.— 177, Eurhodia rugosa (Ravenel) : Phyllode of ambulacrum IV of USNM 

 2300, from the Middle Eocene, Santee limestone, Santee-Cooper Diversion Canal near 

 idytown, Berkeley County, S. C, X I5. 178, Studeria subcarinatus (Goldfuss) : Phyllode 

 ' ambulacrum V of specimen in the Lambert Collection, Sorbonne, Paris, from the Oligo- 

 me, Bunde, Germany, X 5- i79, Pseudopygaidus trigeri (Coquand) : Phyllode of ambula- 

 '"*" J Cotteau's (1887, pi. 126, figs. 6-10) figured specimen in the Ecole National Supe- 

 i-ure des Mmes, Pans, from the Upper Eocene, Zoui (Dept. Constantino) , near the frontier 

 , lunisia. X IS- 180, 181, Pseudopygaidus excentricus (Duncan and Sladen) : 180, Phyl- 

 de of specimen in the Exeter Museum, Exeter, England, from the Eocene, Khirthar Series 



I western Smd, India, X i5 ; 181, apical system of same specimen, X 15. 



II 215 



