

PORAMINIFERA OP THE WEST OF SCOTLAND. 275 



290. Trimcatulina akneriana (d'Orbigny). (New to Britain.) 

 Rotalina akneriana, d'Orbigny, 1846, PFV. p. 156, pi. viii. figs. 13-15. 

 Truncatulina akneriana, Brady, 1884., PC. p. 663, pi. xciv. fig. 8 a, b, c. 



1 Station. 



A single typical specimen at Stn. 16. 



291. Truncatulina tenera, Brady. (Plate 42. figs. 31-33.) (New to Britain.) 

 Truncatulina tenera, Brady, 1884, FC. p. 665, pi. scv. fig. 11 a-c. 



1 Station. 



This rather noteworthy addition to the British "Fauna is represented by one well- 

 developed example from Stn. 20. It is quite characteristic, hut slightly more compressed 

 than Brady's figure. It is apparently a rather deep-water species, the few records 

 lying between 166 and 1375 fms. 



Pulvinulina, Parker & Jones. 



292. Pulvinulina repanda (Fichtel & Moll). 



Nautilus repandus, Fichtel & Moll, 1798, TM. p. 35, pi. iii. figs. a-d. 

 Pulvinulina repanda, Brady, 1884-, FC. p. 684, pi. civ. fig. 18 a, b, c. 



8 Stations. 



Bare, never attaining such large dimensions as its variety concamerata. 



293. Pulvinulina repanda, var. concamerata (Montagu). 



Serpula concamerata, Montagu, 1803-8, TB. Suppl. p. 160 (fide Williamsou). 

 Pulvinulina repanda, var. concamerata, Brady, 1884, PC. p. 685, pi. civ. fig. 19 a, b, c. 



10 Stations. 



This variety of P. repanda, characterized hy a less convex (to flat or even concave) 

 inferior side, is more widely distributed than the type, and often attains very fine 

 proportions. The finest and most numerous specimens were at Stn. 3. 



294. Pulvinulina punctulata (d'Orbigny). 



Rotalia punctulata, d'Orbigny, 1826, TMC. p. 273. No. 25, Modele No. 12. 

 Pulvinulina punctulata, Brady, 1884, FC. p. 685, pi. civ. fig. 17 a, b, c. 



4 Stations. 



Very rare, and only a few specimens at the Stns. — very small, but quite typical. It 

 is a widely distributed form, but appears to have been recorded only by us as a recent 

 British form from Clare Island (H.-A. & E. 1913, CI. p. 136, pi. xii. figs. S, 9). 



