460 
THE VOYAGE OF H.M.S. CHALLENGER. 
Lagena striata , d’Orbigny, sp. (PL LVII. figs. 22, 24, 28, 29, &c.). 
Oolina striata , d’Orbigny, 1839, Foram. Amer. Merid., p. 21, pi. v. fig. 12. 
„ haidingeri, Czjzek, 1847, Haidinger’s Naturw. Abhandl-., vol. ii. p. 138, pL xii. figs. 1, 2. 
Lagena substriata,- William^n, 1848, Ann. and Mag. Nat. Hist., ser. 2, vol. i. p. 15, pi. ii. 
fig. 12. 
,, vulgaris, var. substriata, Id., 1858, Rec. For. Gt. Br., p. 7, pi. i. fig. 14. 
„ gracilicosta, Reuss, 1858, Zeitscbr. d. deutsch. geol. Gesellsch., vol. x. p. 434; — 1862, 
Sitzungsb. d. k. Ak. Wiss. Wien, vol. xlvi. p. 327, pi. iii. figs. 42, 43. 
Ovulina striata, Seguenza, 1862, Foram. Monotal. Mess., p. 40, pi. i. figs. 6, 7. 
„ sulcata, var. 
Id. 
Ibid. 
p. 41, pi. i. fig. 9. 
Phialina haidingeri, 
Id. 
Ibid. 
p. 46, pi. i. fig. 20. 
„ tenuistriata, 
Id. 
Ibid. 
p. 46, pi. i. fig. 21. 
„ lagena, 
Id. 
Ibid. 
p. 46, pi. i. fig. 22. 
„ gemellarii, 
Id. 
Ibid. 
p. 47, pi. i. fig. 23. 
„ cylindracea, 
Id. 
Ibid. 
p. 47, pi. i. fig. 24. 
Lagena tenuistriata, Stache, 1865, Novara-Exped., geol. Tlieil, vol. i., pt. 2, p. 184, pi. xxii. 
fig. 4. 
„ striata, Jones, Parker, and Brady, 1866, Monogr. Foram. Crag, p. 35, pi. i. figs. 38-40. 
Lagenulina striata, Terquem, 1876, Anim. sur la Plage de Dunkerque, fasc. 2, p. 68, pi. vii. 
fig. 7. 
Lagena griming ensis, Karrer, 1877, Geol. K. F.-J. Wasserleitung, p. 378, pi. xvi, b., fig. 17. 
Few members of the genus have better defined and more easily recognised characters 
than Lagena striata, if judged only by specimens such as are found in shallow water 
on our own shores. The body of the shell is regularly oval, and it has a long tubular 
neck, and the surface is marked with numerous delicate, parallel, longitudinal striae. 
Of this typical form Williamson gives an excellent figure in his Lagena vulgaris, var. 
substriata, Rec. For. Gt. Br., pi. i. fig. 14. 
But outside the narrow area of the British seas these characters cease to apply in the 
same distinctive manner ; and between the typical shell, with its closely set linear striae, 
and the stoutly costate forms assigned to Lagena sulcata, every shade of variation is 
encountered ; and the general contour of the test, whether with respect to the shape 
of the body or the nature of the apertural tube, presents equally inconstant features. 
The finely striate varieties of Lagena have not quite the same universal distribution 
as those with stouter costae, but they exist to a greater or less extent in almost every 
sea. They most affect shallow water, but are found from time to time down to 600 
fathoms, and less frequently at even greater depths. 
Lagena striata occurs as a fossil in the Septaria-clays of Germany (Reuss, Schlicht) ; 
in the Miocene of the Vienna Basin (Czjzek, Karrer), of Southern Italy (Seguenza) 
and of Malta (Brady) ; in the Pliocene of Italy (Seguenza) ; in the Crag of Antwerp 
(Reuss), and of the east of England (Jones, Parker, and Brady); and in the Post- 
tertiary beds of Norway, Scotland, England, Ireland, and Italy (Robertson, Shone, 
Wright, &c.). 
