14l> "TERRA NOVA" EXPEDITION. 



CHILOSTOMELLA, Reuss. 



278. Chilostomella ovoidea, Reuss. 



Chilostomella ovoidea, Reuss. 1849-.50, EOT. p. 380, pi. iii (xlviii), fig. 12. 



Brady, 1879, etc., RRC. 1879, p. 66, pi. viii, figs. 11. 12; 1884, FC. 



p. 436, pi. Iv, figs. 12-23. 

 Milk'tt, 1898, etc., FM. 1901, p. 2, pi. i. figs. 2, 3. 



Stations 6, 7. 



A good many specimens at each Station, attaining a large size. Two forms 

 occur at both Stations, representing the two distinct types figured and recorded 

 by Millett, lU supra. 



Family LAGENIDAE. 



Sub-Family LAGENINAE. 



LAC4ENA, Walker and Boys. 



279. Lagena globosa (Montagu). 



Serpidn {Lagena) laevis globosa. Walker and Boys, 1784, TMR. p. 3, pi. i, fig. 8. 

 Lagena globosa, Heron-Allen and Earland, 1914, etc., FKA. 191.5, p. 654. 



Stations 2. 3, 6-10, 11, 14, 16-18, 20. 22, 23, 26. 27, 31, 36, 38, 45, 46, 48, 

 50, 53-55 (-f T. d. F.. R. d. J., D.). 



Almost universally distributed, as usual, very vai'iable both in size and, 

 within limits, in shape. The finest specimens at Stations 18, 38, 50, 53 and 54. 

 Specimens having an entosolenian tube occur at many Stations, especially 

 Stations 6, 18, 38, 45 and 48, the best at Station 45, where an exceptionally 

 large individual, furnished with a short produced neck at each pole and a straight 

 internal tube running almost across the shell, was found. A gigantic specimen 

 at Station 54. At Station 50 a very large abnormal specimen with a produced 

 neck, similar to fig. 11 A:, in Brady, FC, p. 441. Compressed individuals at 

 many Stations. Double specimens at Stations 7. 9, 10. At Station 7 a pair 

 joined by the apex, at Station 9 a pair joined by the base, and at Station 10 

 a pair joined base to side. The Antarctic specimens are, as usual, larger than 

 normal, and the surface is marked with excessively fine striae. 



280. Lagena globosa, var. lineato-punctala, nov. V\. Y, figs. 12-14. 



Stations 6, 11. 



Test globose to pyriform, with slightly protruding neck, and a clear spot 

 of shell-substance in the middle of the base. Surface glassy, but " frosted " 

 in appearance. Under a high magnification this is seen to be due to fine depres- 

 sions set in close regular lines extending from base to neck. There is no indica- 

 tion that these depressions are perforate. 



Several specimens at Station 6. Very rare at Station 11. 



Dimensions :— Length, • 20- -27 mm. ; breadth, -17- -20 mm. 



