2 Transactions of the Society. 



xviii. p. 302, pi. vii. figs. 47, 48, 54-5G. C. laevigata (D'Orb.) Goes, 

 1894, K. Svenska Vet.-Akad. Handl., vol. xxv. p. 43, pi. viii. figs. 

 418-420. C. laevigata (d'Orb.) A. Silvestri, 1896, Mem. Pontif. 

 Accad. Nuovi Lincei, vol. xii. p. 103, pi. ii. fig. 10. 



This is a very rare form in the Malay Archipelago, and has been 

 observed only at Station 10, in Area 1. 



Cassidulina crassa d'Orbigny. 



Cassidulina crassa d'Orbigny, 1843, Foram. Arner. Merid., p. 56, 

 pi. vii. figs. 18-20. C. crassa (d'Orb.) Egger, 1893, Abhandl. k. 

 bayer. Akad. Wiss., CI. II. vol. xviii. p. 303, pi. vii. figs. 35, 36. 

 G. crassa (d'Orb.) Goes, 1894, K. Svenska Vet.-Akad. Handl., vol. 

 xxv. p. 43, pi. viii. figs. 421, 422. C. crassa Egger, 1895, Jahres- 

 bericht xvi. Naturhist. Ver. Passau, p. 19, pi. ix. fig. 19. G. crassa 

 (d'Orb.) A. Silvestri, 1896, Mem. Pontif. Acead. Nuovi Lincei, vol. 

 xii. p. 104, pi. ii. figs. 11, 12. G. crassa (d'Orb.) Morton, 1897, Proc. 

 Portland Nat. Hist. Soc, vol. ii. p. 116, pi. i. fig. 12. G. crassa 

 (d'Orb.) Flint, 1899, Kept. U.S. Nat. Mus. for 1897 (1899), p. 292, 

 pi. xxxviii. fig. 3. C. crassa (d'Orb.) Wright, 1900, Geol. Mag., dec. 4, 

 vol. vii. p. 100, pi. v. fig. 11. 



This is less rare than C. laevigata, and is found at Stations in both 

 Areas. 



Family CEILOSTOMELLIDM 



GMlostomella Keuss. 



Ghilostomella ovoidea Keuss, plate I. figs. 2, 3. 



GMlostomella ovoidea Keuss, 1850, Denkschr. k. Akad. Wiss. Wien, 

 vol. i. p. 380, pi. xlviii. fig. 12. G. ovoidea (Keuss) Sherborn and 

 Chapman, 1889, Journ. R. Micr. Soc, p. 485, pi. xi. fig. 12. G. ovoidea 

 (Reuss) Dreyer, 1891, Jenaische Zeitschr. fur Naturwiss., vol. xxvi. 

 p. 271. G. ovoidea (Reuss) Egger, 1893, Abhandl. k. bayer. Akad. 

 Wiss., CI. II. vol. xviii. p. 305, pi. ix. figs. 1, 2. G. ovoidea (Reuss) 

 Silvestri, 1893, Atti e Kendic. Accad. Sci. Lett, e Arti dei Zelanti e 

 P.P. dello Studio di Acireale, vol. v. p. 201, pi. vi. fig. 2. C. ovoidea 

 (Keuss) Goes, 1894, K. Svenska Vet.-Akad. Handl., vol. xxv. p. 53, 

 pi. ix. figs. 512-516. 



In the robust form, fig. 2, the shell is dense and opaque, with 

 a granular surface. The more attenuated specimens, fig. 3, are 

 sufficiently transparent to allow of the internal chambers being seen, 

 and the shell-wall is smooth, with a few opaque white dots scattered 

 over its surface. 



The principal variation is in the relative length of the successive 

 chambers, and on this depends the comparative stoutness or attenua- 

 tion of the contour of the test. 



