48 DISCOVERY REPORTS 



155. Lagena lamellata, Sidebottom (Plate I, figs. 48-50). 



Lagena lamellata, Sidebottom, 1912, etc., LSP, 1912, p. 396, pi. xvi, figs. 24, 25; 1913, p. 177. 

 One station: 417. 



Six specimens from 141 o fathoms off Coats Land are, I think, referable to this 

 obscure species. One specimen, practically undamaged, has a surface in agreement 

 with Sidebottom 's description, " built up of thin plates, arranged in an irregular manner, 

 which, although rough, glisten to a certain extent". In the other specimens the outer 

 covering is more or less completely abraded, leaving a finely spinous wall, as also de- 

 scribed by Sidebottom. The unabraded wall has a very glittering appearance, as light is 

 reflected at diff'erent angles by the minute plates on the surface. 



The types were from 505-533 fathoms in the south-west Pacific about 16° S, 179° E, 

 and apart from other specimens found in closely adjacent localities, I know of no further 

 record of its occurrence. The presence of the species off the Antarctic coast-line seems 

 to be definite proof of the penetration of Pacific water into the southern parts, at least, 

 of the Weddell Sea. 



156. Lagena lineata (WiUiamson) (F 183) (SG 227) (A 361). 

 One station: 417. 



A single specimen, rather strongly striate and with a tendency to a spiral twist of the 

 striae. 



157. Lagena longispina, Brady. 



Lagena longispina, Brady, 1879, etc., RRC, 1881, p. 61 ; 1884, FC, p. 454, pi. Ivi, fig. 36 (only); 

 pi. lix, figs. 13, 14. 

 L. lofigispina, Pearcey, SNA, p. 1016. 

 One station : 286. 



Two large specimens, one broken, having the long solid spines typical of Brady's 

 species. 



Pearcey's only record is St. 459, outside the convergence. There is no evidence to 

 show whether his specimens represented Brady's long-spined form, or the small form 

 separated as L. globosa var. setosa (see No. 146 and A 342). 



158. Lagena marginata (Walker and Boys) (F 221) (SG 232) (A 364). 

 Three stations: 417, 418, 421. 



Frequent at St. 417 with moderately broad carina; very rare but with broad carina 

 at St. 421 ; very rare and weak at St. 418. 

 Pearcey: 342 "sparingly". 



159. Lagena marginata var. cushmani, Wiesner (A 365). 

 One station: 417. 



Several very good specimens. 



160. Lagena marginata var. echinata (Seguenza) (Plate I, figs. 51-53). 



Fissiirina echinata, Seguenza, 1862, FMMM, p. 58, pi. i, fig. 54. 

 One station: 421. 



