SYSTEMATIC ACCOUNT 51 



171. Lagena semilineata, J. Wright (A 389). 

 One station: 421. 



Frequent specimens. 



172. Lagena sidebottomi, Earland (A 393). 

 One station: 286. 



Two good specimens. This is a most typical Pacific species, the outer range of which 

 has hitherto been the recent record in Drake Strait (A 393). Its occurrence at a station 

 in the middle of the Weddell Sea is therefore a noteworthy extension. 



173. Lagena squamosa (Montagu) (F 197) (SG 243) (A 394). 

 One station: 417. 



A single weak specimen. 



Pearcey: 417 "not in any numbers". 



174. Lagena staphyllearia (Schwager) (F 224) (SG 245) (A 397). 

 Five stations: 286, 417, 418, 421, 447. 



Rare or very rare at all stations, but excellent specimens. The typical form with three 

 basal spines represents the species at Sts. 417 and 418, and is larger than usual. The 

 two-spined variety only is present at Sts. 286 and 447; both occur together at St. 421. 



Pearcey: 447 "rare". 



175. Lagena stelligera, Brady (A 398) (Plate I, fig. 62). 

 Three stations : 286, 42 1 , 447. 



Common at St. 42 1 , not infrequent at the other stations. As usual there is considerable 

 variation, but the majority of specimens at all stations are more or less devoid of basal 

 costae, and both the neck and the basal tubule are longer than usual. Sidebottom's 

 figure (S. 1912, etc., LSP, 1912, pi. xvi, fig. 2) represents the most frequent variation. 



176. Lagena stelligera var. eccentrica, Sidebottom (A 399) (Plate I, figs. 63, 64). 



Two stations: 417, 421. 



Three large and typical specimens at St. 417. At St. 421 two specimens of a variation 

 presenting a stout blunt spine in the centre of the basal ring. 



177. Lagena stewartii, J. Wright (F 171) (SG 246) (A 401). 

 One station: 417. 



A single good specimen. 



178. Lagena striata (d'Orbigny) (F 188) (SG 247) (A 402). 

 Two stations: 313, 417. 



Very rare: never more than two specimens at a station, and all of the long flask- 

 shaped form figured by Williamson. 



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