o;J0 MissceUaiiea. 



Tiiii i: distinctly seen in the small fragment here figured, as well 

 as the iininternipted passage of the transverse ridges from one 

 oblique sulcus to that on the opposite side, and the undivided 

 nature of the 'intermediate faces. The larger specimen figured is 

 nut so perfect, but shows the slow rate of increase. The transversa 

 sulci are about as numerous as in the C Icevigata, but that species 

 has four unequal, divided faces, and is, together with all the 

 described species, so different as not to require a particular com- 

 parison. The oblique or twisted direction of the longitudinal sulci 

 above-noticed, I find also to exist in the recent Creseis spintfera of 

 the Mediterranean; so that what would otherwise seem an anoma- 

 lous character of the present fossil tends rather to strengthen the 

 affinity between Conutaria and the recent Pteropoda. 

 Not uncommon in the sandstone of Muree, N. S. Wales. 



Conularia tenuistriata (M'Coy). PI. XVII. figs 7 and 8. 



Sp. Char. Quadrangular, pyramidal, section rhomboidal, tapering 

 at the rate of two lines in one inch ; sides unequal, two narrow 

 sides flat or slightly convex, about half the width of the two 

 wide ones, which are slightly concave ; a strong longitudinal . 

 furrow dov,'n each of the lateral angles, and a faintl3^-marked one 

 in the middle of each of the broad faces ; transverse strise very 

 fine, twenty-seven to twenty-nine in the space of half an inch, 

 passing uninterruptedly, with a slight upward curve, across the 

 broad faces, more nearly straight on the two narrow ones. 



This species equals or even exceeds the Conularia Gerolsteinensis 

 in the fineness of its transverse striation, while it is distinguished 

 from that and all other species with which 1 am acquainted by the 

 great disproportion in the width of the sides. One specimen, 

 imperfect at both ends, measuring IJ inch long, had the long 

 diameter at the base 9 lines, the sliort diameter at the base 4^ 

 lines ; long diameter at smaller end 6^ lines, short diameter at ditto 

 3 lines. 



Not uncommon in the sandstone of Muree, N. S. Wales. 



[^Cephalopoda.) 



Bellerophon micromphalus (Mor.). 



Common in the impure calcareous beds of Wollongong, N. S. 

 Wales ; rare in the sandstone of Muree, N. S. Wales. 



Bellerophon inter strialis (M'Coy). PI. XVIL fig. 6. 



Sp. Char. Globose ; keel obtuse, rounded ; surface with sharp 

 spiral slrlcc, each pair having two or three finer lines between 

 them, and the whole reticulated by sharp tranverse elevated 

 stri6e, which form little tubercles at the intersections. 



Closely allied to the Irish carboniferous B. interlineatus (Portk ), 

 from which it is known by the strong reticulation of its surface. 

 Rare in the Dunvegan shale, N. S. Wales. Width 4 lines. 



Nautilus. 



A species resembling the carboniferous N. sulcatus, but too 

 imperfect for specific determination, occurs in the Dunvegan shale, 



N. S. Wales. 



