shell must be removed from Pleurophovits and placed under 

 Stutohburia as a new species, which may then be termed 

 S. inflntu. With the other species of Stutchburia there is 

 but little resemblance ; for ,S. comprc.s.sy/, Morris, S. Farleij- 

 ensis, Eth. fil., and >S. simplex, Dana are much flatter and 

 less elongate forms. The other Australian Stuh-hbuvias 

 have radial striae on the posterior portion of the shell, and 

 so cannot be considered. 



Stutchburia compressa, Morris sp. (Strzelecki's N. S. 

 Wales and Van Dieman's Land, p. 274, pi. 13, f. 1). 

 Loc. Burrier (D). 



served, and confirm the opinion of Mr. Etlieridge that the 

 two species are distinct. Many examples are testiferons, 

 and careful examination in every case failed to yield the 

 slightest trace of any radial sculpture. The edentulous 

 nature of the hinge line is very well shown in the specimen 

 figured. A thickening of the hinge, just below the umbo 

 of the right valve, may possibly mark the position of a 

 rudimentary tooth. The test itself is very thick, much 

 more so than in 8. eostata. 



Stutchbiria costata, Morris sp. Strzelecki's X.S.Wales 

 and Van Dieman's Land, p. 273, pi. 11, f. 1 and 2). 



Loc. Burrier (D). 



Hor. Wandrawandian Series. 



Obs. Two specimens were found, one testiferous, the 

 other an internal cast. The cast shows traces of the 



