F0RAMIN1FEEA OF THE WEST OF SCOTLAND. 261 



Marginulina, d'Orbigny. 



227. Marginulina glabra, d'Orbigny. 



Marginulina glabra, d'Orbigny, 1826, TMC. p. 259. No. 6, Modele No. 55. 

 „ Brady, 1884, FC. p. 527, pi. lxv. figs. 5, 6. 



2 Stations. 



Very rare. The specimens are small and weak in character. 



228. lifarginulina costata (Batsch). 



Nautilus (Urthoceras) costatus, Batsch, 1791, CS. p. 2, pi. i. fig. 1 a-g. 

 Marginulina costata, Brady, 1884, FC. p. 528, pi. lxv. figs. 10-13. 



4 Stations. 



Very rare, but exceptionally large and fine at Stn. 19, and almost equally good at 

 Stn. 14. At Stn. 20 the specimens are small and very complanate and regularly 

 Cristellarian in their initial portion. 



Vaginulina, d'Orbigny. 



229. Vaginulina legumen (Linne). 



Nautilus legumen, Linne, 1788, SN. p. 3373. No. 22. 



Vaginulina legumen, Brady, 1881, FC. p. 530, pi. lxvi. figs. 13-15. 



6 Stations. 



Rare, but some extremely fine specimens were found, the best at Stn. 3. At many 

 of the Stns. thin-shelled slender forms, vaginuline in aperture and oval in section, are 

 of frequent occurrence. Their affinities, however, appear to lie with Nodosaria com- 

 munis (q. v.), with which they are linked by many intermediate varieties. We have 

 dealt with them when considering that species. 



230. Vaginulina linearis (Montagu). 



Nautilus linearis, Montagu, 1803-8, TB. Suppl. p. 87, pi. xxx. fig. 9. 

 Vaginulina linearis, Brady, 1884, FC. p. 532, pi. lxvii. figs. 10, 12. 



1 Station. 



A single specimen (damaged) from Stn. 11. 



Cristellaria, Lamarck. 



231. Cristellaria crepidula (Fichtel & Moll). 



Nautilus crepidula, Fichtel & Moll, 1798, TM. p. 107, pi. xix. figs. g-i. 



Cristellaria crepidula, Brady, 1884, FC. p. 542, pi. lxvii. figs. 17, 19, 20, pi. lxviii. figs. 1, 2. 



13 Stations. 



Generally distributed, sometimes fairly frequent. There is, as usual, an immense 



SECOND SERIES. — ZOOLOGY, VOL. XI. 40 



