COASTS VISITED BY THE AECTIC EXPEDITION. 627 



decidedly Carboniferous aspect ; whilst the Erachiopoda, on the other 

 hand, such as Productus horridus, indicate Permian affinities. 

 One species only has been described, R. Hochstetteri, Toula. 



Ramipoba Hochstetteei, Toula. 



Ramipora Hochstetteri, Toula. N". Jahrbuch, 1876, p. 230, t. 10. 

 f. 1, a & b. 



Obs. It is unnecessary to describe this further, as the foregoing 

 characters will suffice for it. There are in the collection four 

 specimens which I refer to R. Hochstetteri ; two of them may, how- 

 ever, form a second species, judging from the less compact manner 

 in which the polyzoarium is held together; but the material is 

 insufficient and the preservation indifferent. 



This species strongly resembles Synocladia from the Permian rocks ; 

 but the bilateral connecting processes or branches in that genus 

 are more arcuated than in R. Hochstetteri, and the main or chief 

 and also the secondary branches in Ramipora are much more 

 delicate. 



Loc. Toula's specimens were collected on the west coast of Spitz- 

 bergen (Axel Island) ; Captain Feilden's at Cape Joseph Henry, 

 lat. 82° 50'. 



Genus Phtllopoea, King, 1849. 



(Annals Nat. Hist. 1849, iii. p. 389 ; Permian Foss. England, 

 1850, p. 40.) 

 Phyllopoea, sp. ? 



Obs. A few fragments are mixed with the other Polyzoal remains 

 on the black limestone previously mentioned, which I believe to be 

 referable to Phyllopora, King. The portions of the frond or poly- 

 zoarium remaining consist of rounded interstices anastomosing one 

 with the other, after the manner of uthyllopora, and producing a 

 series of oval or rounded-oval meshes or fenestrules. The cells are 

 numerous, with prominent margins, and are scattered over the sur- 

 face of the so-called interstices ; for there is no proper division into 

 celluliferous interstices and non-celluliferous dissepiments, hence the 

 reference to Phyllopora. Did the polyzoarium possess true non- 

 celluliferous dissepiments there would exist a close resemblance 

 between the Arctic form and Polypora gracilis, Prout*, of the 

 Keokuk group of Illinois. So far as I can judge from the fragments 

 I have seen, the resemblance to P. Laubei, Toula, from Nova Zemblat, 

 is only a general one. 



Loc. Feilden Isthmus, lat. 82° 43'. 



Class ERACHIOPODA. 



Only five genera with twelve species of this group occur in the 

 Carboniferous collection. The genera are Spiriferina, Spirifera, 

 Productus, Stre/ptorhynchus, and Rhynchonella. The two genera 



* Illinois Geol. Keport, ii. t. 21. f. 1. t N. Jahrbuch, 1875, t. 9. f. 1. 



