Fossil Fauna, Table Cape Beds, Tasmania. 125 



shallower spiral stride or grooves than the principal ones. In the 

 principal grooves very fine and close stria tions parallel to the 

 lines of growth are distinctly visible under a lens, and as they 

 do not appear to cross the spiral tlireads or bands they give rise 

 to the i-ather characteristic appearance of pitting along these 

 grooves. 



Dimensions.— Ty^e example, length, 4-5 mm. ; breadth, 

 2-25 mm. 



Locality. — -Eocene beds of Table Cape, Tasmania. 



Observations. — This species, which shows some relation to the 

 shell previously described by the late Rev. J. E. T. Woods under 

 the name of Actceon scrobiculatus, may possibly belong to the 

 genus Leiicotina of A. Adams, which was founded by that 

 authority for the reception of living species in the Chinese and 

 Japanese seas which are apparently of a somewhat similar type 

 to our fossil form. 



From Actceon scrobiculatus the present species may at once be 

 separated, as it differs materially in shape and habit, having a 

 I'elatively longer and more prominent spire, a more marked 

 suture, shorter body-whorl, with one tooth-like plait towards the 

 upper part of the columella instead of the strong obliquely 

 twisted ridge towards the lower or anterior end of the aperture, 

 and the distinct though small umbilicus. 



89. Cylichna woodsii, Tate. 



C. arac/iis, T. Woods (non Quoy and Gaimard), P.R.S.Tas., 

 1876, p. 102. 



C. zuoodsii, Tate, P.R.S.Tas, 1884, pp. 211, 212 and 228. 



90. Tugalia cpassireticulata, sp. nov. Plate III., 

 figs. 4 and 5. 



Shell elongate oval, depi-essed patelliform, beak or umbo 

 prominent and excentric posteriorly, situated at about one-third 

 the length of the shell from the posterior margin. Greatest 

 breadth (25 mm.) behind the beak across the middle line of the 

 shell, narrowing much more rapidly anteriorly than posteriorly. 



