lt!4 II'. /. Robinson — -Paleozoic Alcyonarian, Tumularia. 



3. Broad and petalliform septa: those of Protaraea are 

 lamellar. 



Coccoseris Eichwald L860 ( Lop/ioseris Eichwald 1857) is 

 evidently a synonym of Protarma and not of Stylarcea as was 

 suggested 1 >_\ Lindstroui.* The illustrations in Lethcea Rossica 

 are very clear and show twelve septa in both the genotype, 

 Coccoseris ungerni, and the only other species listed, C. 

 approximate. 



LIST OF SPKCIES. 



Tumularia parva (Billings). 



Columaria parva Billings. Can. Xat. Geo)., vol. iv, 42>8, 



1859. 

 Stylarma paroa Lambe. Cont. Can. Pal., vol. iv, Pt. I, 9], 



pi. 5, tigs. 9-9b, 1899. 

 Locality and horizon : Mingan Islands, Quebec, and the 



Champlain— Montreal area, Canada ; Virginia and 



Tennessee. Ordovician (Chazy). 

 Tumularia r>> imeri (Seebach). Genotype. 



/Stylarcea rcemeri Seebach. Zeit. deutsch. geol. Ges., vol. xviii, 



30(5, 186(5. 

 Locality and horizon : Wesenbenj in Eslhonia. Middle 



Ordovician. 



Tumularia occidentalis (Nicholson and Etheridge). 



Stylarcea occidentalis Nicholson and Eiheridge. Mon. Sil. 



Foss. Girvan Dist., 62, 1878. 

 Locality and horizon : Craighead, near Girvan, Scotland. 



Silurian. 



* Index to generic names, K. Svenska Vetensk.- Akad. Handl., viii. No. 9. 

 1883. 



