H. SIDEBOTTOM OX TWO NEW SPECIES OF CASStDULINA. 107 



was found. I was delighted not only to find some more, but, 

 strangely enough, to come across five good examples ot* Cassidu- 

 lina elegans, above described, and for which I had wanted a 

 locality. They agree with the drawings, except that some of 

 them are rather more globular in shape. Of course, as one 

 would expect, they vary a little in size. 



The locality and particulars are as follows : H.M.S. Waterwitch, 

 8.W. Pacific, Station 159 ; lat. 19 04' S. ; long. 179 43' E. ; 

 1,050 fms. 



Cassidulina decorata sp. nov. (PI. 4, Fig. 2). 



Test nearly globular. The face slightly compressed. The 

 -orifice is an oblique, curved, loop-like slit with raised border, and 

 the sutures (a little sunk) only show immediately below it. 



The whole of the test, except in the region of the orifice, is 

 decorated with a network of irregular costae. No indication of 

 the sutures is traceable on the back of the test, but by using a 

 weak solution of hydrochloric acid I was able partially to 

 obliterate the costae, and to make out the interdigitation of 

 the chambers. 



The markings indicated in the drawings must not be taken as 

 being exact, for they are too complicated to draw quite correctly 

 on so small a scale, but they are quite near enough for the 

 identification of other specimens. The groundwork between the 

 -costae is rough. The shape of the test is very similar to Cassidu- 

 lina calabra Seguenza, as figured in the Challenger Report^ which 

 also occurs at this station, and of which Cassidulina decorata may 

 possibly be a decorated variety. Even after using the acid I 

 -could detect no sinking of the sutures beyond that mentioned 

 above. 



Locality and particulars as follows : H.M.S. Watericitch, S.W. 



