26 



PLATE 9. difficult to conceive how it can be the detached reproductive segment 

 of the Globigerinse, whose cells, or chambers, are not in any instance 

 ' spherical. 



FIG. 3. In one or two of these Orbulinaa, out of twenty which were 



examined, an orifice no doubt a fracture of irregular form was 

 noticed, but void of that rounded, transparent, smooth finish which 

 was found in all other specimens of the Globigerinae. 



Some of the perforations (irregular in size, form, and relative 

 position) went completely through the wall for the purpose of extend- 

 ing the pseudopodia ; others indenting only a portion of the wall. 

 The external parts of the perforations were rounded and smoothed off 

 with a beautiful transparent finish. 



FIG. 4. Three views of a new form of Foraminiferse. Interior filled with 



minute calcareous formations ; shape ovate ; orifice white ; body 



B. end. brown, and encrusted with particles of sand embedded in the shell ; 

 striated ; margin white. 



F IG . 5. These few forms are of course well known and described ; they 



are figured here simply to lead to those other forms of Foramini- 

 ferse which are either not so well known, or are new to the general 

 observer. 



Flo 6 Dentalina. Shell smooth ; straight ; five oblique segments ; trans- 



parent mucro ; hyaline texture ; centre of each segment transparent ; 

 first and second chamber partially coated with carbonate of lime. 



