1872.J ETHERIDGE QXJEENSLAI^D FOSSILS. 329 



The dorsal valve (fig. 2) shows the rugose undulating folds or 

 wrinkles at the cardinal angles. 



We fail to see the concentric lines crossing the ribs on our ex- 

 amples, owing to their condition ; and the places of former spines are 

 faintly traceable. 



It is not a little singular that this shell, so common in the Car- 

 boniferous rocks of Great Britain and not known with us as a 

 Devonian form, is yet associated with Lepidodendra in the Devonian 

 rocks of Queensland, to which strata the genus Lepidodendron is 

 there confined, and where homotaxially it seems to have preceded 

 its appearance in Europe; associated also with P. cora we have 

 plant-remains, which are noticed by Mr. Carruthers in a second 

 appendix to Mr. Daintree's paper. 



Loc. Gympie, New-Caledonia Reef. Form. Devonian. 



^ Spirieeea bisulcata, Sow., var. acuta. PL XVI. fig. 1. 



I can ouly refer this fragment of a Spirifera to oue of the many 

 forms assumed by the variable species S. hisulcata, Sow. {S. trigo- 

 ncdis, Mart.). One chief character (the mesial fold) is wanting in our 

 specimen ; but in all other respects it agrees with many British and 

 European forms. S. hisulcata is not a British Devonian species ; its 

 place seems taken by the representative shell 8. undidata, Eom., 

 which seems to be as abundantly distributed through the Devo- 

 nian rocks in Queensland as in England and Germany; and the 

 cardinal angles of our shell are more acute than in many of the 

 variations assumed by European forms. The varietal name acuta 

 will serve to distinguish it from those possessing more tumid cardinal 

 angles ; it possesses also sharp ribs. 



Some Irish and Scotch forms of S. striata resemble our shell, but 

 possess usually miich finer and more numerous ribs. The undu- 

 lation of the ventral margin, especially the mesial fold, is usually 

 much more pronounced. 



Loc. Gympie. Form. Devonian. 



Spirieeea vespertilio. Sow. PL XVI. fig. 2. 



Bef. Pal. Shells of Van Diemen's Land, Appendix to Darwin's Geol. 

 Obs. on Vole. Islands &c., p. 160, 1844*. 



I cannot do other than refer this fragmentary Spirifera to the 

 above species. It has not the number of ribs described by Sowerby ; 

 but their angular, imbricated, or fimbriated condition, the width of 

 the mesial fold or ridge, and the pointed beak, with the transversely 

 fusiform shape of the one valve, are sufficient to warrant my retaining 

 this name for the specimen from Gympie. 



Many Spiriferoe in the British rocks, belonging to this fusiform 

 group, much resemble our shell in general aspect, especially the 

 varieties of S. convoluta, Phill. ; but none of our British or European 

 shells possesses the aspect of the valve under notice ; five or six rows 



* Also, Strzelecki, Phys. Desc. New South Wales and Van Diemen's Land, 

 p. 282, t. 17. figs. 1-3. 



VOL. XXVni. PAET I. 2 A 



