912 Transactions of the Society. 



Cristellaria vortex, Fichtel and Moll, sp. 



Nautilus vortex, Fichtel and Moll, 1803, Test. Micr., p. 33, pi. ii. 



figs. d-i. 

 Cristellaria vortex, Brady, 1870, Edinburgh Catalogue, p. 8. 



Small starved specimens, doubtfully referrible to this species, from 

 the west coast of Scotland. 



Cristellaria variahilis, Eeuss. 



Cristellaria variabilis, Eeuss, 1849, Denkschr. d. k. Akad. Wiss. Wien, 



vol. i. p. 369, pi. xlvi. figs. 15, 16. 

 Wright, 1886, Proc. E. Irish Acad., ser. 2, 

 vol. iv. (Science) p. 612. 

 South-west of Ireland, 100 to 200 fathoms, rare (Wright). 



Cristellaria italica, Defrance, sp. 



Saraeenaria italica, Defrance, 1824, Diet. Sci. Nat., vol. xxxii. p. 177 ; — 



vol. xlvii. p. 344 ; — Atlas Conch., pi. xiii. fig, 6. 

 Cristellaria sularcuattila, var. scapha, Williamson, 1858, Eee. For. Grt. 

 Br., p. 30, pi. ii. figs. 60, 61. 

 Estuary of the Dee, rare (Siddall). Williamson gives no locality 

 for the broken specimen figured in his work. 



Amphicobyne, Schlumberger. 



Amphicoryne falx, Jones and Parker, sp. 



Marginulina falx, Jones and Parker, 1860, Quart. Journ. Geol. Soc, 

 vol. xvi. p. 302, No. 28. 

 South-west of Ireland, 79 to 400 fathoms, rare (Wright). 



Sub-family 3. Polymorphininse. 



PoLYMOEPHiNA, d'Orbiguy. 



Polymorpliina lactea, Walker and Jacob, sp. 



Serpula lactea, Walker and Jacob, 1798, Adams's Essays, Kanmacher's 



ed., p. 634, pi. xiv. fig. 4. 

 Polymorphina lactea (typica), pars, Williamson, 1858, Eec. For. Gt. 

 Br., p. 70, pi. vi. fig. 147. 

 „ „ var. communis, Id., Ibid., p. 72, pi. vi. figs. 



153-155. 

 Generally distributed. 



Polymorphina gihha, d'Orbigny. 



Polymorphina (Glolulina) gihla, d'Orbigny, 1826, Ann. Sci. Nat,, 

 vol, vii. p. 266, No. 20;— Modele, No. 63. 

 „ gibha, Brady, 1870, Edinburgh Catalogue, p. 5. 



_ Scarcely separable either in characters or distribution from the fore- 

 going species. Futile attempts have been made (by myself amongst 

 others) to distinguish the more or less compressed specimens both of 



