LAGENIDAE 149 



336. Lagena formosa var. costata, Earland (SG 215). 

 Five stations: 384-6; WS 403, 469. 



Very rare everywhere, but good and typical specimens. At St. 385, where it was less 

 uncommon, there was some range in the number and strength of the costae, and the 

 variety merged into small specimens of L. formosa found at that station. 



337. Lagena foveolata, Reuss (F 204) (SG 216). 

 Six stations: 383, 385, 386; WS 403, 505, 507B. 



Only single specimens, except at Sts. 385, WS 403, where a series showing consider- 

 able range in the strength of the striae was obtained; also an apiculate specimen at 

 St. 385. At Sts. 383 and WS 507 B specimens were found in which the outer coating of 

 the test was partly or wholly denuded, leaving a delicate hyaline shell studded with rows 

 of the very short spines, which normally support the outer coat of its double-walled test. 



338. Lagena foveolata var. paradoxa, Sidebottom. 



Lagena foveolata, var. paradoxa, Sidebottom, 1912, etc., LSP, 1912, p. 395, pi. xvi, figs. 22, 23 ; 



1913, p. 177, pi. XV, fig. 32. 



Lagena paradoxa, Cushman, 1932, etc., TPA, 1933, p. 29, pi. vii, figs. 9, 10. 



Four stations : 383, 384, 385 ; WS 403. 



Only single specimens, except at St. 385, where it is more abundant and some of the 

 specimens are strongly sulcate. All the stations are in the Drake Strait or Scotia Sea 

 and over 3700 m. Sidebottom's variety is distinguishable only by the coarseness of the 

 external markings and seems hardly worth separating from the type. 



Sidebottom's records were from the south-west Pacific, and Cushman (ut supra) has 

 recently recorded and figured the form from the Tropical Pacific, his figures being 

 excellent. He had previously recorded and figured specimens from the North Atlantic 

 under the name L. paradoxa (C. 1918, etc., FAO, 1923, p. 45, pi. viii, fig. 11), but the 

 figure is not recognizable, and it seems doubtful whether it represents the same organism. 

 In any case the specific name paradoxa has already been used by Seguenza for a different 

 organism (Fissurina paradoxa, Seguenza, 1862, FMMM, p. 61, pi. ii, fig. 7). In strict- 

 ness I suppose the varietal name should be changed. 



339. Lagena glans, sp.n. (Plate VI, figs. 50, 51). 

 One station : 385. 



Test shaped like an acorn in its cup ; the " cup " or aboral end forms about one-sixth 

 of the test but does not project beyond the rest of the shell. The cup is covered with a 

 close network of reticulated sculpture and has a slightly projecting basal spine or tube. 

 Between the reticulate surface of the cup and the smooth "acorn" portion of the test 

 a fine of minute arched grooves encircles the test. The acorn portion of the test is 

 smooth ; wall thick, becoming solid towards the central aperture at the tip of the acorn. 



Total length nearly 0-6 mm.; maximum breadth 0-32 mm. 



Only a single specimen in fine preservation from 3638 m. in the Drake Strait. It is 

 evidently nearly related to L. sidebottomi (No. 393), but is sufficiently distinctive to 

 require specific determination. 



