43 



Although only a fragment, this is a well marked shell. 

 It belongs to that group of Murchisonife to some extent 

 represented by M. cingulata, IW^.^hwt differs in possessing 

 straight-walled whorls and a more rapidly attenuating 

 spire. The sculpture is unpreserved. 



Loc. — Zeehan, in a white quartzite. 



Genus Eunema, Salter. 



(Canadian Organic Remains, 1859, Dec, I., p. 24.) 



Eunema Montgomerii, sp. nov. 



PL, Fig. 21 & 22. 



Sp. char. — Shell conical, turreted, of four non-oblique 

 whorls, and a nucleus, encircled by prominent sharp carinas, 

 the first three whorls each bearing two, one immediately 

 around the suture, the other near the middle ; below this the 

 sides of each whorl are straight-walled; body whorl with 

 four keels, the three upper as already described, whilst the 

 fourth is much more anterior in position — practically quite 

 anterior — and somewhat oblique ; the sides of each whorl 

 between the first and second carinte are concave, whilst the 

 second carina is always the more prominent ; the sutm'es 

 are flat or very slightly concave ; surface ornamented vv^ith 

 microscopic thread-like lines of growth, varying slightly in 

 direction between the encircling carinas. Height of the 

 largest specimen three-quarters of an inch. 



Obs. — A very well marked shell, allied to E. strigilla- 

 tum, Salter,^ of the Trenton Epoch of North America, but 

 broader in relation to its height, and differently directed 

 carinae. It affords me much pleasure to associate with 

 this the name of Mr. A. Montgomery, Government Geo- 

 logist of Tasmania. Johnston's Trochonema Etlieridgei^ 

 is perhaps an allied, although distinct shell. 



Loc. — Zeehan, in the Despatch Limestone. 



Genus Raphistoma, Hall. 



(Pal. N. York, 1847, I., p. 28.) 



Raphistoma ? sp. ind. 



PL, Figs. 25 and 26. 



Ohs. — In the white sandstone from Zeehan several very 

 poor casts of a low-crowned shell occur, difficult of deter- 

 mination, but having the appearance of this genus, and in 



* Canadian Organic Remains, Dec, I., 1859, p. 29, t. 6, f. 4, 

 2 Syst. Acc. GeoL Tas., 1888, t. 5, f. 13 and 14. 



