616 B. ETHE RIDGE ON THE PALEONTOLOGY OP THE 



3. Polypora, sp. ; a form branching less regularly than P. 

 dendroides, M'Coy, but otherwise closely corresponding with the 

 latter. 



4. Polypora, sp., allied to P. fastuosa, De Koninck ; possesses oval 

 fenestrules, thin striated dissepiments, and four cells in each oblique 

 cross row. 



5. Polypora grandis, Toula ; a large and boldly formed species, 

 with flat interstices carrying oblique cross rows of five or six cells 

 in each ; the dissepiments are thin, oblique, and striated. 



6. Polypora, sp., with a funnel-shaped frond, resembling in some 

 points P. biarmica, Keyserling ; the cells, however, are three or four 

 in each oblique cross row. 



7. Ramipora, Toula (nov. gen.). — Under this name Dr. Toula 

 separated a Synocladia-like polyzoan, in which a main stem gives 

 off large branches at the same level on opposite sides, trending up- 

 wards. These lateral or secondary branches themselves give rise to 

 shorter and slighter dissepiments on each side, which, projecting 

 towards one another, meet and form an arched fenestrule. Both 

 the main stem and branches are keeled on each face of the polyzo- 

 arium, but the cells open only on one, and are placed in longitudinal 

 rows. The type and only species described is R. Hochstetteri, Toula. 

 I shall have occasion to refer again to this form. 



8. Phyllopora Laubei, Toula; a characteristic Phyllopora, in 

 which the reticulation is coarser or larger than in P. Ehrenbergi, 

 King. 



1875. Another excellent paper by Dr. Toula, " Eine Kohlenkalk- 

 Fauna von den Barents-Inseln (Nowaja-Semlja, N.W.) " *, contains 

 numerous descriptions of Polyzoa, which it is necessary to notice in 

 detail. He there describes : — 



1. Glauconome, sp., near G. <pulcherrima, M'Coy, and G. trilineata, 

 Meek, from Hofer Island. It is a mere fragment. 



2. Polypora biarmica, Keyserling, var. Specimens from Hofer 

 Island are considered by Dr. Toula to be a variety of Keyserling's 

 Russian form. American specimens from Nebraska city were re- 

 ferred to this species by Dr. Geinitz, for which the latter was rather 

 severely criticized by the late Mr. P. B. Meek ; however, Dr. Toula 

 appears to consider that even the American variety may be brought 

 to agree with the typical form by the aid of the Nova-Zembla 

 specimens. 



3. Polypora fastuosa, de Koninck, from Hofer Island and Scheda 

 Island, is considered by Dr. Toula to be allied to P. bifurcata, 

 Keyserling. 



4. Polypora laxa, Phillips, from Scheda Island; a form possessing 

 an irregular network, like that of Phillips's species. 



* Sitz. d. k. Akad. d, Wissenschaften zu Wien, 1875, lxxi. pp. 562-574. 



