Subbotina linaperta

Under low power SEM (second row in the plates) the various tests appear similar to one another. The principle features of the wall textures of the various species can be observed in all specimens, such as the porous nature of the wall and some surface ornamentation such as inter-pore ridges and muricae. However the partially peeled surface of the final chamber of Subbotina linaperta from ODP Site 689 is apparent through the loss of cancellation on the test surface (Fig. le) and it is also possible to see the trace of a broken final chamber on the specimen from Hampden Beach... 

---