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Show 28 MB. F. CHAPMAN ON SOME [Jail. 15> 145. LAGENA HEXAGONA, Williamson. Lagena hexagona. Brady, 1884, Chall. Eep. vol. ix. p. 472, pi. lviii. figs. 32, 33^ Found in Sample No. 1, rare. 146. LAGENA MABGINATA (Walker & Jacob). Lagena marginata, Brady, 1884, Chall. Eep. vol. ix. p. 476, pi. lix. figs. 21-23. Found in Sample No. 4, very rare ; No. 5, rare ; No. 6, very rare. 147. LAGENA MABGINATA (Walker & Jacob), var. CATENULOSA, nov. (Plate I. fig. 5 a, b.) This beautiful variety belongs to the wide-flanged type of L. marginata. On the lateral aspect the test is decorated with two or more chain-like borders encircling the bulbous portion. A remarkable feature about this variety is its apiculate base, encompassed, however, within the thin outer flange. The oral extremity of the test is distinctly phialine or lipped, partially closed over with redundant shell-growth, and showing a secondary tubular (true) orifice within. The outer flange is mined by a microscopic boring plant. Length of test yL- inch (1-47 mm.). One example found in Sample No. 6, very rare. 148. LAGENA SEMINIFOBMIS, Schwager. Lagena seminiformis, Schwager, 1866, Novara-Exped., geol. Theil, vol. ii. p. 208, pi. v. fig. 21; Brady, 18S4, Chall. Eep. vol. ix. p. 478, pi. lix. figs. 28-30. This species was recorded as a Pliocene fossil from Kar Nicobar (Schwager). Found in Sample No. 5, very rare. 149. LAGENA LAGENOIDES (Williamson). Lagena lagenoides, Brady, 1884, Chall. Eep. vol. ix. p 479 pi. Ix. figs. 6, 7, 9, 12, 14. " Found in Sample No. 5, very rare. 150. LAGENA CAPILLOSA (Schwager). Fissurina capillosa, Schwager, 1866, Novara-Exped geol Theil vol. ii. p. 210, pi. v. fig. 25. ' ' This species is one of those which have not been met with before in deep-sea soundings, and was described from the Pliocene deposits of Kar Nicobar. Found in Sample No. 6, very rare. 151. LAGENA FIMBEIATA, Brady. Lagena fimbriata, Brady, 1884, Chall. Eep. vol. ix p 486 nl Ix figs. 26-28. V' 'F " " Found in Sample No. 1, very rare. |