May, 1889. 
FORAMINIFERA OF OBAN. 
119 
Balkwill and Millett (G.), 1884, p. 9. 
Balkwill and Wright (I. F.), 1885, p. 388, pi. xiv., 
figs. 1-2. 
Wright, J. Kecent Foraminifera, Down and Antrim, 
p. 108, pi. iv., fig. 10. Proc. Bel. Nat. Field 
Club. Appendix, 1876-7. 
Bobertson, D. (W. S.), 1874, common. 
Oban, 1883. Frequent. 
36. Lagena Williamsoni. Alcock, 1865. 
Alcock, 1865. Proc. Lit. and Phil. Soc., Manchester. 
Yol. iv., p. 195. 
Mr. J. Wright, 1877. Proc. Bel. Nat. Field Club, 
1876-7. Appendix, p. 103, pi. iv., figs. 11-18. 
Balkwill and Wright (I. F.), 1885, p. 339, pi. xiv., 
figs. 6-8. 
A well-marked form, the lower part of the neck 
distinctly ornamented with hexagonal reticula¬ 
tions. Common. 
37. Lagena striata. D’Orbigny, 1839. 
Williamson (R. F.), 1858, p. 7, pi. i., fig. 14. 
Balkwill and Wright (I. F.), 1885, p. 337. 
Robertson, D. (W. S.), 1874, common. 
Mr. J. Wright remarks that there are two well- 
marked forms of this species, one elongate, with 
very delicate longitudinal striae, the other larger, 
more globular. 
There is an exceedingly great variety of form and 
size of striae, in both the L. striata and L. semi- 
striata. Common. 
39. Lagena gracilis. Williamson, 1848. 
Williamson, 1848. Ann. and Mag. Nat. Hist., Ser. 2, 
Yol. i., p. 13, pi. i., fig. 5. 
Williamson (R. F.), 1858, p. 7, pi. i., figs. 12-3. 
Appears to be a finely striated variation of L. Icevis. 
Rare. 
40. Lagena squamosa. Montagu, 1803. 
Williamson (R. F.), 1858, p. 12, pi. i., fig. 29. 
Balkwill and Wright (I. F.), 1885, p. 340, pi. xiv., 
fig. 9. 
Robertson, D. (W. S.), 1874, frequent. 
A lagena that varies very much in every way—in form, 
size, and also both in shape and arrangement of 
the areolae. Frequent. 
