]U "TERRA NOVA" EXPEDITION. 



round the neck, and show evidence of the same ornament sometimes ou the body. 

 I'hese specimens might, perhaps, he equally well referred to L. hispida, representing 

 a maximum stage of denudation, as referred to in our note on that species 

 (see H.-A. & E., 1916, FWS. p. 243, pi. xli, fig. 16, L. his]ndu), but only these 

 vestigial traces w^ould suggest that they were anything but typical L. laevis. 

 [Arenaceous isomorph, Reophax difflugifomiis, Brady.] 



286. Lagena sphaerula, Silvestri. 



Lagena sphaerula, Silvestri, 1902. LMT. p. 162, figs. 68-70. 



Stations 2, 6. 



Many excellent examples at Station 6, and one at Station 2. This form of 

 Silvestri's with oral and basal produced apertures is isomorphous with Seguenza's 

 L. lyellii, and occupies the same varietal position towards L. laevis that L. lyellii 

 does to L. sulcata. 



287. Lagena gracillima (Seguenza). 



Amjihorina gracilis, Costa, 18.53, etc., PEN. 1856, p. 121, pi. xi, fig. 11. 

 Lagena gracillima, Heron-Allen and Earlaud, 1911, etc., FKA. 191.5, p. 660. 



Stations 2, 6, 9, 10, 16, 18, 20, 22, 29, 36 (+ K. I.). 



Widely distributed but never abundant. The best specimens at Station 6, very 

 large, and Station 36 medium in size, but with extraordinarily produced neck. 



288. Lagena elongata (Ehrenberg). 



Miliola elongata, Ehrenberg, 1844, Bcr. k. preuss, Ak. Wiss. Berlin, ji. 274; 1845. p .o71 ; 



1854, M. pi. x.xv, fig. 1, A, 1. 

 Lagena „ Cushman, 1910, etc., FNP. 1913, p. 12, pi. i, fig. 5. 



Stations 6, 11, 17, 36. 



Typical at Station 11, though small ; less characteristic and nearer L. gracillima 

 at the other Stations. 



289. Lagena aspera, Reuss. 



Lagena aspera, Reuss, 1861, FKM. p. .305, pi. i, fig. 5. 



„ Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 655. 



Stations 6, 10, 16-18, 22, 28. 



Sparingly distributed, and only occasional specimens, but very representative. 

 At Station 6 long-necked specimens of all degrees of coarseness of ornament. At 

 Station 7 a globular specimen almo.st identical with Reuss's L. rudis (R. 1862, 

 FFL. p. 336, pi. vi, fig. 82). At Stations 16, 17 and 22, the specimens are of 

 thd type usually associated with deep water, having a globular body and a short, 

 thick neck ornamented with rings. 



[Arenaceous isomorph, Haplophragmium scmposum, Berthelin (B. 1880, P14.M. 

 p. 21, pi. i, fig. 1).] 



