146 DISCOVERY REPORTS 



324. Lagena compresso-marginata, Sidebottom. 



Lagena compresso-marginata, etc., Fornasini, 1889, MPPS, No. 16, fig. 16. 



Lagena compresso-marginata, Sidebottom, 1912, etc., LSP, 1913, p. 187, pi. xvi, fig. 21. 



Three stations: 385, 386; WS 403. 



Two very fine examples and one weaker from St. WS 403, and single excellent 

 specimens at Sts. 385 and 386, all in deep water in the Drake Strait and Scotia Sea. The 

 best specimens resemble Sidebottom's figure but have no basal spine. The costae and 

 carina are strongly developed. 



Fornasini 's figure is a crude little woodcut to which he gives no name, merely 

 describing his specimen as "Lagena compresso-marginata, modificazione parzialmente 

 striata (nella parte aborale) della L. marginata W. e B." His figure shows no basal spine 

 but the carina is apparently well developed. His specimens were from a Pliocene marl 

 near Bologna. 



The specific name must be attributed to Sidebottom, as the words compresso- 

 marginata were evidently used by Fornasini in a descriptive sense. They are not printed 

 in italics like the generic name Lagena, or the other specific names in the paper. 



325. Lagena costata (Williamson) (F 195) (SG 207). 

 Ten stations: 170, 175, 363, 383-5, 387; WS 403, 468, 482. 



Rare everywhere, the best series at St. 170 where there was some range of variation 

 in the relative number and coarseness of the costae. The type of Williamson without 

 produced neck was found at this station, also at Sts. 384, 387 and WS 482, but often in 

 company with a variety with short produced neck, linking the species with L. sulcata. 

 This variety represents the species at the remaining stations. 



326. Lagena danica, Madsen (F 234) (SG 208). 

 One station; 170. 



Very rare but typical. 



327. Lagena deaconi, sp.n. (Plate VI, figs. 48, 49). 

 Two stations: 385, 386. 



Test hyaline, a compressed and elongate flask, thickest and widest near the base, 

 narrowing and thinning out to the oral extremity, which is at the end of a produced neck 

 with reverted lip. The edges of the flask are broad and rounded at the base and sides, 

 thinning out into a wide finely tubulated carina on each side of the neck. From the 

 extremity of the neck two costae diverge, following the neck and gradually disappearing 

 into the outer edges of the flask. The basal portion of each face is produced downwards 

 and outwards into strong cusps which overhang the base, and curving inwards are 

 serrated on their inner edges. The test is thickest at the cusps, which would appear to be 

 hollow cavities, not connected with the interior of the test. 



Length about 0-45 mm.; maximum breadth about 0-23 mm.; thickness 0-15 mm. 



Three good specimens at St. 385, and a broken test at St. 386. Both stations are in 

 the Drake Strait, depths 3638 and 4773 m. respectively. 



This is a very remarkable and distinctive form, so unlike other species that it is 



