342 



BULLETIN 77, UNITED STATES NATIONAL MUSEUM. 



government of St. Petersburg. Favositella punctata is common at 

 Uxnorm, Esthonia, in the Wassalem beds (D3). 



ARCHEOPORA RADIANS Eichwald. 



Text fig. 217. 



Archeopora radians Eichwald, Lethsea Rossica, vol. 1, 1860, p. 408, pi. 24, fig. 20. 



The figures of this species indicate without the shghtest doubt that 



it is founded upon the basal side of some parasitic bryozoan. As many 



forms would present the same or a quite similar appearance from this 



side, it is obviously impossible 

 ^ ^ to recognize the particular 



one Eichwald figured. The 

 species must, therefore, be 

 classed as unrecognizable. 



Occurrence. — Ordovician 

 limestone, near Pulkowa and 

 Wesenberg, 



CALAMOPORA ALVEOLARIS Goldfuss. 



Calamopora alveolaris Gold- 

 fuss, Petref. Germ., vol. 1, 

 1826, p. 77, pi. 26, fig. 1.— 

 Eichwald, Letheea Rossica, 

 vol. 1, 1860, p. 466. 



Fig. 217.— Archeopora radians, a and b, the type- 

 specimen, NATURAL SIZE AND ENLARGED. (AFTER 



Eichwald.) 



Russian specimens from various horizons and localities have been 

 identified as above by Eichwald with this species, which, as figured by 

 Goldfuss, is a typical Favosites. The Ordovician specimens so referred 

 have certainly little in common with the latter form. 



CALAMOPORA FIBROSA Goldluss. 



Calamopora fibrosa var. tuberosa ramosa Goldfuss, Petref. Germ., vol. 1, 1826, p. 



82, pi. 28, fig. 3. 

 Calamopora fibrosa Eichwald, Lethsea Rossica, vol. 1, 1860, p. 469. 



Under this name Eichwald described one or more of the numerous 

 massive Russian bryozoans, but which can not be determined. Gold- 

 fuss's species is likewise so figured and described that it can not be 

 recognized. 



Eichwald records the species from both Ordovician and Silurian 

 localities of Baltic Russia. 



CALAMOPORA POLYMORPHA Goldfuss. 



Calamopora polymorpha Goldfuss, Petref. Germ., vol. 1, 1826, p. 79, pi. 27, figs. 

 2-5.— Eichwald, Lethsea Rossica, vol. 1, 1860, p. 466. 



The Ordovician specimen so identified can not be recognized from 

 Eichwald's description, but are certainly very different from the 

 Devonian fossils figured by Goldfuss under this name. 



Occurrence. — Identified in Russian Ordovician at Pulkowa, Erras, 

 and Wesenberg, as well as in later horizons at various locahties. 



