900 Transactions of the Society. 



Bolivina dilatata, Reuss. 



Bolivina dilatata, Eeuss, 1849, Denkschr. d, k. Ak. Wiss. Wien, vol. i. 



p. 381, pi. xlviii. fig. 15. 

 Textularia variabilis, var. sjMthulata, Williamson, 1858, Kec. For. Gt. 



Br., p. 76, pi. vi. figs. 164, 165. 

 Bolivina dilatata, Robertson, 1880, Proc. Nat. Hist. Soc. Glasgow, vol. 



V. p. 12. 

 Torquay, Shetland (Williamson) ; Mount's Bay (Millett) ; Portree 

 Bay, Skye (Robertson); Irish Sea, very rare (BalkwiU and Wright); 

 south-west of Ireland, common (Wright). 



Bolivina Isevigata, Williamson, sp. 



Textularia variabilis, var. laevigata, Williamson, 1858, Rec. For. Gt. 



^ Br., p. 77, pi. vi. fig. 168. 

 Bolivina textilarioides, Reuss, 1862, Sitzungsb. d. k. Akad. Wiss. Wien, 



vol. xlvi. p. 81, pi. X. fig. i. 

 BalkwiU and Wright, 1885, Trans. R. Irish 

 Acad., vol. xxviii. (Science) p. 334. 

 Off Dublin coast, rare (BalkwiU and Wright); Mount's Bay 

 (Millett) ; south-west of Ireland (Wright) ; shore-sand, Galway (BalkwiU 

 and Millett). 



Messrs. BalkwiU and Millett are probably correct in associating 

 Williamson's Textularia variabilis, var. Isevigaia with Reuss's better 

 known species. The change of name, however, entails a certain amount 

 of inconvenience, as the term " Isevigata " has been recently used by 

 Karrer for a somewhat different modification of the type. 



Bolivina senariensis, Costa, sp. 



Brizalina senariensis, Costa, 1856, Atti dell'Accad. Pont., vol. vii. 



p. 297, pi. XV. fig. 1. 

 Bolivina costata, Siddall, 1878, Proc. Chester Soc. Nat. Sci., pt. ii. p. 55. 

 „ senariensis. Id., 1886, Proc. Lit. Phil. Soc. Liverpool, vol. xl. 



Appendix, p. 56. 

 Estuary of the Dee (Siddall). 



Sub-family 3. Cassidulininae. 



Cassidulina, d'Orbigny. 



Cassidulina laevigata, d'Orbigny. 



Cassidulina Isevigata, d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 282, 

 No. 1, pi. XV. figs. 4, 5 ;— Modele, No. 41. 

 Williamson, 1858, Rec. For. Gt. Br., p. 68, pi. vi. 

 figs. 141, 142. 

 Rare at depths of less than 30 fathoms or thereabouts, but compara- 

 tively common in deeper water off Shetland, the west of Scotland, and 

 the west and south of Ireland. 



No good purpose is served by attempting to separate Cassidulina 



