364 DISCOVERY REPORTS 



178. Lagena clavata (d'Orbigny). 



Oolina clavata, d'Orbigny, 1846, FFV, p. 24, pi. i, figs. 2, 3. 

 Lagena clavata, Reuss, 1862, FFL, p. 320, pi. i, fig. 13 (only). 

 Lagena clavata, Cushman, 1910, etc., FNP, 1913, p. 9, pi. ii, fig. 3. 



Two stations: WS 89, 217. 



Very rare but occurs typically at these stations, and quite conformable to the Paris 

 Type which is of the rather pointed form. 



179. Lagena laevis (Montagu). 



Vermiculum laeve, Montagu, 1803-8, TB, p. 524. 



Lagena laevis, Brady, 1884, FC, p. 455, pi. Ivi, figs. 7, 8, 9, 12 (only). 



Lagena laevis, Heron-Allen and Earland, 1913, CI, p. 77, pi. vi, fig. 5. 



Seven stations: 48; WS 83, 86, 89, 90, 99, 225. 



Curiously rare, as a rule only a single specimen at the stations where it occurs. Most 

 frequent at WS 89 where, in addition to the type, the curved variety which we figured in 

 191 3 {ut supra) is found. The same variety occurs at WS 86, where the type was not 

 observed. 



180. Lagena hispidula, Cushman (Plate X, fig. 6). 



Lagena laevis, Brady (pars), 1884, FC, pi. Ivi, figs. 10, 11. 



Lagena hispidula, Cushman, 1910, etc., FNP, 1913, p. 14, pi. v, figs. 2, 3. 



Six stations: WS 76, 88, 93, 215, 217, 433. 



Very rare, usually only a single specimen at each station. Cushman founded his 

 species on the two figures (10 and 1 1) of Brady's series of L. laevis in which the surface 

 is " matt " or finely hispid. These Challenger specimens came from the Southern Ocean 

 and the South Atlantic respectively. Cushman records it from many localities in the 

 North Pacific. Length averages about 0-30 mm. 



181. Lagena hispida, Reuss (Plate X, figs. 7, 8). 



Lagena hispida, Reuss, 1858, FP, p. 434; 1862, FFL, p. 335, pi. vi, figs. 77-9. 

 Lagena hispida, Brady, 1884, FC, p. 459, pi. Ivii, figs. 1-4; pi. lix, figs. 2-5. 

 Lagena hispida, Heron-Allen and Earland, 1916, FWS, p. 243, pi. xli, fig. 16. 



Five stations: WS 76, 98, 210, 217, 225. 



A few specimens at each. In dealing with L. hispida in 1916 {ut supra), we expressed 

 our opinion that L. hispida is one of those species of Lagena with a compound shell 

 structure, i.e. "the shell structure can be separated into distinctive layers. The 

 internal layer is normally clothed with a dense 'pile' of most delicate needles, of equal 

 length, their points coalescing to form a rough or 'matt' surface. The spirally orna- 

 mented neck is free from all exogenous growth. The ' matt' outer surface is very easily 

 destroyed ; the spines then fall off" and only their bases are left, giving a faintly hispid 

 surface to the test". We figured a British specimen showing this structure. 



It is an interesting thing to have this observation confirmed by specimens from the 

 other end of the world. The Falkland specimens of L. hispida are, however, different, 



