FOBAMINIFERA OF THE WEST OF SCOTLAND. 257 



many British dredgings, and entirely supersedes the normal type in some of the North 

 Sea (' Goldseeker ') dredgings. 



213. Nodosaria pauperata, d'Orbigny. 



Dentalina pauperata, d'Orbigny, 1846, FFV. p. 46, pi. i. figs. 57, 58. 

 Nodosaria (D.) pauperata, Brady, 1884, FC. p. 500 (woodcuts, figs. 14, a, b, c). 

 1 Station. 



One large and typical but damaged specimen. 



214. Nodosaria roemeri (Neugeboren). (Plate 41. fig. 35.) (New to Britain.) 



Dentalina roemeri, Neugeboren, 1856, OLS. p. 82, pi. ii. figs. 13-17. 

 Nodosaria (D.) roemeri, Brady, 1884, FC. p. 505, pi. lxiii. fig. 1. 



3 Stations. 



Very rare, but the few specimens which occur are large and typical, and much better 

 developed than is usual in the ' Runa ' Nodosaria?. Previously recorded with some 

 doubt as British, only by Pearcey from the Paroe Channel (P. 1890, FC. p. 177). 



215. Nodosaria mucronata (Neugeboren). 



Dentalina mucronata, Neugeboren, 1856, OLS. p. 83, pi. iii. figs. 8-11. 

 Nodosaria (D.) mucronata, Brady, 1884, FC. p. 506, pi. lxii. figs. 27-31. 



1 Station. 



One rather doubtful specimen only. The species has only been recorded previously 

 as British from South-west Ireland by Wright (W. 1891, SWI. p. 483). 



216. Nodosaria scalaris (Batsch). 



Nautilus (Ortkoceras) scalaris, Batsch, 1791, CS. p. 2, pi. ii. fig. 4. 



Nodosaria scalaris, Brady, 1884, FC. p. 510, pi. lxiii. figs. 28-31, pi. Ixiv. figs. 16-19. 



19 Stations. 



Almost universally distributed and by far the commonest Nodosaria in the dredgings, 

 but not equally abundant at all the Stns. The finest series at Stns. 4, 10, 14, and 18. 

 The typical form of Batsch, with chambers regularly increasing in size and coarsely 

 sulcate, is not particularly abundant, but Stn. 18 yields an exceptionally fine and large 

 example, with no less than seven regularly increasing chambers ; other good examples 

 at (inter alia) Stn. 14. Prom this typical form practically every degree of depauperation 

 exists down to almost smooth examples. These latter occur at Stn. 4. The weakly 

 marked variety named by Silvestri Lagenonodosaria psendoscalaris (Atti Pont. Ace. 

 Bom. Nuovo Lincei, Anno lvii. 1904, p. 144, fig. 4), characterized by few and feeble 

 costse and a more or less distorted shell, occurs nearly everywhere. A variety with 

 practically parallel sides, i. e., showing no increasing diameter in the chambers, occurs 

 at Stns. 4, 14, 20, and 23. Insequilateral types, in which one side of the shell is 

 developed at the expense of the other, giving an Anvphicoryne appearance to the test, 



