A COXTUTBrTIOX TO TUV. CKXITS FrsiTJXA. 33 



tliiii (nearly 0.0-) mm. in tlio ontormost volution) while the septa. 

 ;ire still thinner. As was seen from one of the transverse sections, 

 the latter hecome especially thin near the umbilical end. The 

 shell has luimerous septa which number about 30 in the fourth 

 vohition ; infoklings of the septa arc numerous and similar to those 

 of /'. Richtliofeni Sciiwagek, except near the umbilical end. 



Fig. 4 shows a longitudinal section, very excentrically made, 

 of a Fumlina, whose specific identity with the above is rendered 

 ]n'obable by its small size, the similarity in the relative thickness 

 of the wall and septa, and above all by the absence of any 

 other forms belonging to a clearly distinct species in many 

 slices of the same rock. The areolar ramification of the septa 

 at the umbilical end is not so conspicuous as in F. Richthofeni, 

 a species which otherwise very much resembles our form in 

 structure. This section, though taken very excentrically, also 

 affords us some idea of the general aspect of the species ; it 

 may be called cylindrical rather than fusiform. The canals of 

 the pores are simple, and have a breadth somewhat less than 

 0. 01 mm. 



In several respects, this Korean form is also not unlike /'. 

 cylindr'ica Fischer, though provided with many distinguishing- 

 features ; for instance F. eylindrica has first chamber excessively 

 large in comparison with our form; the ramification of the septa 

 near the umbilical end is also not quite alike in these two. 



From the above explanation of the accompanying figures, it 

 will be seen that there is a peculiar small form of FusuHua s.s. 

 in Korea, probably distinct from any of the described forms. I 

 once took it for a local, dwarf variety of F. Richthof eni, a form 

 hitherto found in China, but this needs verification from the 

 exaniination of more numerous and better material?. 



