Note on Arctic Palaeozoic Fossils. 257 



corallites are from 1 to \\ mm. in diameter, with thin walls. Found in 

 a slab of sandstone characterised by turreted Gasteropods. 



Halysites labyrinthica (Goldfuss) [Fig. 8]. 



1 826. Catenipora labyrinthica, Goldfuss, Petrefacta Musei Universitatis Eegise Borussic;e 

 Rhenanpe Bonnensis, p. 75, pi. 25, figs. 5-56. 



A silicified specimen of Hah/sites agrees more closely Avith Goldfuss' 

 species than with any of the species described by American authors. It 

 is characterised by its large meshes and large oval corallites, of which three 

 occur along a distance of 1 cm., as is the case in the original figure 

 (loc. cit. fig. 5a). Sections made at three different points failed to show the 

 presence of tubules. The tabulae are 1 mm. apart on an average, but 

 may be somewhat more closely packed. Most of them are straight, 

 only a few being oblique, or slightly concave towards the middle of their 

 course. No septal spines can be detected, but the specimen being 

 silicified it is not possible to say to what extent this feature is to be 

 regarded as original or due to the mode of preservation. 



From H. catenularia var. simplex Lambe 1 the specimen described here 

 differs mainly in the mode of growth, the meshes being wide and 

 irregular, while they are long and narrow in the other species. The 

 present determination might of course have to be modified in the event 

 of a revision of Goldfuss' type showing it to possess characters not 

 expressed in the figure. But, in the meanwhile, weight must be attached 

 to the fact that the original of the first of the two figures given by 

 Goldfuss, viz. fig. 5a, is that of a specimen from the Upper Silurian rocks 

 of Drummond Island, Lake Huron, that is, from the same zoological 

 province as the materials collected by Parry. 



On page ccli. of A Sup>plement to the Appendix of Captain Parry's 

 Voyage, published in 1824, Konig gives a short diagnosis of a new 

 species of chain-coral — Catenipora Parryi. No figure accompanies the 

 description, which is so brief and insufficient that the name proposed 

 must remain a nomen nudum. As the present specimen is without 

 label, there are no means of ascertaining whether it may be the actual 

 type-specimen of Konig's species. 



Although a long range is generally attributed to species of Halysites, 

 it must be noted here that Mr J. M. Clarke, 2 commenting on Halysites 

 catenularia from the Guelph fauna in the State of New York, makes the 



1 Contributio?is to Canadian Palceontology, vol. iv., part 1 — " A Revision of the Genera and 

 Species of Canadian Pakeozoic Corals," 1899, p. 70, pi. 4, fig. 3. 



2 New York State Museum b7th Annual Report, 1903, p. 34. 



