Synopsis of the Britisk Becent Foraminifera. Btj H. B. Brady. 913 



P. lactea and P. gihha by varietal names — P. ladea, var. amygdaloides, 

 Keuss, and P. gihha, var. lequalis, d'Orbigny — respectively ; but the 

 distinction bas not been found to possess the least zoological value. 



Pohjmorjohina prohlema, d'Orbigny. 



Pohjmorphina (Guttidina) prohlema, d'Orbigny, 1826, Ann. Sci. Nat., 



vol.vii.p.266,No.l4;— Modele, No. 61. 

 „ „ communis, Id., Ibid., p. 266, No. 15, pi. xii. 



figs. 1-4 ;— Modele, No. 62. 

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



Widely distributed. 



It is quite impossible to separate Pohjmorphina communis from 

 P. prohlema, and as d'Orbigny 's model of the latter form presents the 

 best developed characters, I have followed Eeuss in accepting it as the type. 



Polymorphina lactea, var. ohlonga, Williamson. 



Polymorphina lactea, var. ohlonga, Williamson, 1858, Rec. For. Gt. Br., 

 p. 71, pi. vi. figs. 149, 149a. 



Widely distributed. 



I have for the moment retained the trivial name " ohlonga " just as 

 given by Williamson, that is to say varietally. The same term had been 

 used twice previously in connection with the genus, namely by Eoemer 

 (Neues Jahrb. fiir Min., &c., 1838, p. 386, pi. iii. fig. 34) and by 

 d'Orbigny (For. Foss. Vien., p. 232, pi. xii. figs. 29-31). Eoemer's 

 specimens, so far as can be judged from his figure, may be disposed of by 

 referring them to P. communis or P. prohlema; and those from the 

 Vienna Basin might be fitly assigned to the earlier d'Orbignyan species 

 P. soldanii (Ann. Sci. Nat., vol. vii. p. 265, No. 12). If this course be 

 adopted Williamson's form, which has tolerably distinctive characters, 

 wiU stand as Polymorphina ohlonga. 



Polymorphina thouini, d'Orbigny. 



Pohjmorphina thouini, d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 265, 



No. 8 ;— Modele, No. 23. 

 Siddall, 1878, Proc. Chester Soc. Nat. Sci., 

 pt. ii. p. 48. 

 Estuary of the Dee, very rare (Siddall). 



Polymorphina lanceolata, Eeuss. 



Polymorphina lanceolata, Eeuss, 1851, Zeitschr. d. deutsch. geol. Gesell., 

 vol. iii. p. 83, pi. vi. fig. 50. 

 „ fiisiformis, pars, Brady, Parker and Jones, 1870, Trans. 



Linn. Soc. Lend., vol. xxvii. p. 219, pi. xxxix. 

 fig. 5, h, c. 

 „ lanceolata, Eobertson, 1882, Proc. Nat. Hist. Soc. 



Glasgow, vol. V. p. 268. 

 Eobin Hood's Bay, Yorkshire ; Loch Fyne (Eobertson) ; estuary of 

 the Dee (Siddall) ; Dublin coast (Balkwill and Wright) ; south-west of 

 Ireland (Wright). Probably this Hst is far from complete. 



