476 
Proceedings of the Royal Irish Academy, 
Cassidulina crassa, d'Orbigny. 
Cassidulina crassa, d'Orbigny, 1839, Toram. Amer. Merid., 
p. 56, pi. Yii. figs. 18-20. 
Found in all the gatherings, but not so plentiful as C. Icevigata ; 
common at 345 fathoms. 
Cassidulina bradyi, ISTorman. 
Cassidulina bradyi, (IS'ormanM.S.), Wright, 1880, Proc. Belfast 
Nat. Field Club (1879-1880), Appendix, p. 152. 
Ears at 7-750 fathoms. 
Family, Chilostomellid^. 
CHILOSTOMELLA, Reuss. 
Chilostomella ovoidea, Eeuss. 
Chilostomella ovoidea, Eeuss, 1849, Denkschr. d. K. Akad. 
"Wiss. Wien., vol. i. p. 380, pi. xlviii. fig. 12. 
Frequent at 53 fathoms and 345 fathoms. 
SEABROOKIA, Brady.^ 
Test calcareous, free, very finely perforate, thin and trans- 
parent, polythalamous ; segments few, unequally convex on the 
upper and under side, either embracing or almost embracing ; 
aperture, a slit, which is alternately at either end of the shell. 
[Seabrookia pellucida, Brady. (Plate xx. Figs. 5 a, 5b.)2 
Seabrookia pellucida, Brady, Jour. Eoy. Mic. Soc, ITov., 1890, 
p. 569, woodcuts, figs. 1, 2. 
Test thin and hyaline ; segments embracing, ovate, slightly 
1 When the present Paper was presented, the genus Seabrookia had not been 
pubhshed, and the generic term MilLettia, proposed by me at the suggestion of 
Mr. Earland, in the Annals and Magazine of Natural History for December, 1889, 
was employed for these species — the one from Java, the other from Cork. Since 
then, however, Dr. Brady has pubhshed the genus Seabrookia for the form from 
Java, and I have withdrawn the name MiUettia in favour of that proposed by 
Dr. Brady. 
2 The specimen figured PI. xx., Fig. 5, was in bad condition, and the arrange- 
ment of the chambers not distinctly seen. The more perfect specimens figured by 
Dr. Brady show the early chambers only partiaUy enclose each other, the later 
ones completely so. 
