332 PHOCEEDIKGS OF THE GEOLOGICAL SOCIETY. [April 24, 



distorted ; Timbilicus not seen ; shape of aperture doubtful ; no shell- 

 structure left. 



Ohs. I can scarcely detect any diiference between the form and 

 habit of this shell and those of Pleurotomaria carinata, Sow. Its 

 size is greater ; but unfortunately the loss of the outer shell prevents 

 our seeing the band or slit at the edge of the whorl, in the absence 

 of which it might be referred to RapJiistoma or PlatyscJiisma ; it is not, 

 however, sufficiently depressed to be referred to the former genus. 



The species of this genus, unless well defined, are at all times most 

 difficult to determine ; in the above case I am not justified in pro- 

 posing a new name, and therefore refer it to Sowerby's P. carinata, 

 which it very closely resembles. 



Loc. Gympie. Form. Devonian. 



Efomphaltts, sp. ? 



Owing to the fragmentary condition of the few specimens in the 

 collection, referred to this genus, we can only state its occurrence 

 in the Devonian rocks of the Gympie goldfield. They are associated 

 with Favosites, Stenopora, &c. 



Loc. Gympie. Form, Devonian. 



Peniestella FosstJLA, Lousdalc. PI. XXY. fig. 1. 



Uef. Strzelecki's Phys. Desc. of New South Wales & Van Diemen's 

 Land, p. 269, t. 9. figs. 2 a, b. 



Perm of polyzoarium not known, probably cup-shaped ; our por- 

 tion is foliaceous ; meshes or fenestrules oval, small, densely ar- 

 ranged upon the expanded coencecium or polypidom ; transverse 

 processes or bars non-cellular. 



These unsatisfactory specimens of Fenestella I refer to Lonsdale's 

 species F. fossula. 



Ohs. No good characters are left for determination ; the transverse 

 processes or bars, and the fenestrules, are so obscure that any attempt 

 to give definite characters would mislead ; it so closely resembles 

 F. fossula, from Mount Wellington, Van Diemen's Land, and St. 

 Patrick's Plains, New South Wales, that I feel obliged to refer it to 

 that form ; any additional species would only multiply names. I had, 

 however, proposed the name F. densa for our Queensland specimen. 



The original habit was probably infundibuliform or cup-shaped ; 

 but whether the bars were rectangularly dichotomous, with oval 

 meshes, cannot be distinctly made out. 



Loc. Gympie, Smithfield Eeef. Form. Devonian. 



Cebiopoea? laxa. Ether. PI. XXV. figs. 2, 2a. 



Polyzoaxium branching, branches bifurcating twice or thrice, sub- 

 cylindrical or compressed, pores small, apparently round, and equal, 

 opening upwards ; whether the cell-openings inclined at any parti- 

 cular angle to the axis of the branches I cannot determine. Only 

 one specimen has occurred to us, associated with the densely 

 reticulated coencecium of Fenestella fossula, Lonsdale. 



