150 "TERRA NOVA" EXPEDITION. 



A single large thick-walled specimen with basal spine. Between each of the 

 prnuary tubulated costae is a series of three irregularly anastomosing costae. 

 Cushman's 1913 figure (pi. xiii. fig. 3) comes nearer to our specimen than any 

 other ]nil:)lished figure. 



311. Ldfjciui foveolatd, Keuss. 



Lafjena foveolata, Reuss, 1862, FFL. p. 332, pi. v, fis;. 65. 



Millett, 1S98, etc., FM. 1901, p. 11. ]il. i. fig. 1-5. 



Stations 8, IL 17. 36 (+ D.). 



A single specimen at each Station. Typical at Station 3(5 ; very coarsely 

 marked at Station 8, each internal chamberlet being recogni-sable as a distinct 

 scpiare, sealed by the delicate outer shell. The specimen at Station 17 is very 

 weak, the cross bars between the longitudinal ribs forming the internal shell- 

 wall, lieing almost non-existent. At Stations 8 and 11 specimens with a single 

 .spine at the base exactly resembling Sidebottom's fig. 16 (1912. LSP. pi. xvi). 



312. Lagena foveolata, var. s^nnipes, Sidebottom. 



Liii/ciia foreolriia, var. spiiiipcs, Sidebottoiu, 1912, ftc. LSP. 1912, p. ."'i9.5, pi. .xvi, figs. 18-21 ; 

 191.3. ]i. 177. 



Stations 17, 18. 36. 



Very few individuals, all very much decayed, the doublo shell-wall having almost 

 entirely disappeared, leaving only the longitiulinal ril)s, which project round the 

 produced neck as .sharp knife-like flanges. They are clearly referable to Sidebottom's 

 fig. 18. 



313. Lagena foveolatd, var. paradoxa, Sidebottom. 



Lafjena foveolata, var. paradoxa, Sideliottdiii. 1912. etc.. l.SI^. 1912. p. -'V-t-j. pi. xvi. figs. 22, 

 23: 1913, p. 177. pi. xv. fig. 32. 



Station 20. 



A single typical specimen. The outer layer of the shell-wall is eroded in places, 

 and indicates that the inner .spongv layer is of great thickness. The central 

 cavity cannot occupy more than a, half of the bulk of the shell. 



314. Lagena spumosa, Millett. 



Lagena spumosa, Millett, 1898, etc., F.M. 1901. \). 9, pi. i, fig. 9. 



Heron-Allen and Earland, 1916, FWS. p. 24.5. ])1. xli, figs. 19, 20. 



Stations 16-18, 36 {+ D.). 



Confined to the deepest waters ; a few good specimens at each Station. 



315. Lagena scottii, sp. nov. PL YI, figs. 3. 4. 

 Station 4.5. 



Test pyriform, with short stout produced neck, furnished with spiral groovings. 

 Shell-wall, double. The appearance of the outer surface is that of a highly 



