^10 



REPORTS ON THE STATE OF SCIENCE. 



' (2) A freer centre in the central area (again judging by the figure). 



' (3) " Short and tui'binate " form (see his description) ; but, seeing that 

 he gives measurements which agree with those of tlie specimens I have 

 examined, the above description is probably inaccurate. 



' [N.B. — Thomson adds an important note on the occurrence of his type 

 species.] ^ 



' BUjiiDojihi/Uiim, aff. <p, Vgn. is Dili. aff. Mirlrheadi, Nicholson and Thomson.-' 

 ' The external area and structure of inner svall agree witli Dib. i//, Vgn. 

 * The central aiea has tlie simple structure of Dih. 0, Vgn. 

 'The strong prolongation of the septa to the external wall is an unusual 

 feature in the genus.' 



' Phil. Soe. Glasqow, vol. xiii. (1882); see p. 487. 

 2 Ibid., vol. X. (liB76), p. 129. 



