100 "TERRA NOVA" EXPEDITION. 



128. Haplopkmgmium glomeratum, Brady. 



Liluola (jlomerata, Brady, 1878, RRNP. p. 433, pi. xx, fig. 1. 



tiaplophnttjmium cjlomeratum, Heron- Allen and Earland, 1913, CI. p. 46, pi. ii, fig. 14. 



Cushman, 1910, etc., FNP. 1910, p. 104, figs. 158-161. 



Stations 16, 27, 29, 32, 33, 36, 40, 44 ( + D.). 



Coufinecl to the deeper water between N.Z. and the Antarctic coast line. The 

 number of specimens found was always small, but they are all larger than the average, 

 and extremely well developed. 



129. Hajylojihragmium canariense (d'Orbigny). 



Nonionina canariensis, d'Orbigny, 1839, FIG. p. 128, pi. ii, figs. 33, 34. 

 Hajylojihragmium canariense, Heron- Allen and Earland, 1914, etc., FKA. 1915, p. 614. 



Stations 1-6, 13, 17, 26, 27, 29, 31, 33, 36, 41, 44-47, 49, 50, 52, 53-5 ( + R. d. J., D.). 



Almost universally distributed, but there is a strange gap in the records between 

 Stations 6 and 13. The species is, as everywhere, extraordinarily variable, 

 ranging in the one direction towards H. emaciatum and H. ncmum, and, in the 

 other, towards H. crussimargo, the transition between these species being so gradual 

 at some Stations as to defy diagnosis. The tendency to inflation of the chambers 

 is noticeable, particularly at Stations 13 and 29, where the species shows a 

 tendency to pass into the species H. sjihaeriloculum, Cush. The largest specimens 

 from the N.Z. area occur at Station 3, but there is a general tendency to increase 

 of size as we go south, bhe Antarctic Stations yielding not only abundant speci- 

 mens, but large individuals with thicker tests, passing imperceptibly at Stations 45 

 (which is the best Antarctic Station), 47, 50, 53, 54, 55, into H. crassimargo. 

 At Stations 48, 53, and 54 the convolutions are noticeably excentric, and the 

 tendency is to pass into H. scitidum. At Stations 26, 45 and 55 specimens pass 

 imperceptibly by gradual distortion into our var. variabilis. Station 36 is note- 

 worthy from the fact that though other conditions seem to be favourable, only 

 a single minute specimen was recorded. 



[Hyaline isomorph, Nonionina depressula (W. & J.), to N. umhilicatula 

 (Mont.), and allied forms.] 



130. Haplophragmium canariense, var. variabilis, Heron-Allen and Earland. 



Haplojjkragmium canariense (d'Orb.) Heron-Allen and Earland, 1916, FWS. p. 223, pi. xl, 



figs. 12, 13. 

 „ „ var. variabilis, Heron-Allen and Earland, 1916, FSC. p. 41, pi. vi. 



figs. 1-3. 



Stations 26, 38, 45, 46, 47, 48, 53, 54 (+ D.). 



The records are confined to the southern areas in the Antarctic Circle. At 

 some of the Stations, noticeably Stations 26 and 38, it attams great profusion 

 and variety of gro^i:h, and also considerable size. Every type of malformation 

 conceivable is represented, but perhaps the most noticeable lines of variation 



