\di "TK1!1!A NOVA' KXPKDITroN. 



Stations 2, 3. ()-8, 10-12, IG-18, 20, 22, 23, 27, 31, 32, 3(J, 38, 45, -16, 

 48-50, 52-54 (+ K. d. .!.)• 



Universally distributed and showing no signs of decrease in size or 

 development as we go south. The number of chambers varies between four 

 and seven ; in fact at some Stations six-chambered specimens are almost as 

 abundant as the normal type. Best in the N.Z. area at Stations (J, 10. 11 and 

 12; at the last two Stations there is a tendency to inflation, bringing them 

 very near to P. sphaeroides, indeed the four-chambered specimens at these 

 two Stations may be regarded either as compressed P. sphaeroides or inflated 

 P. (pmiqueloba. Similar inflated specimens, sometimes with lobulate edge, at 

 Stations 18 and 22. The species attains its best dimensions at Antarctic Stations 

 36, 38, 45, 48 and 50. Six-chambered specimens at Station 45, 48 and others, 

 and seven-chambered at Stations 38 and 50. Fossil specimens only at Stations 

 2 and 3, also at Station 6 witli excellent recent ones. 



4!J0. Fullciiiu sphaeroides (d'Urbiguy). 



Nonionina sphaeroides, d'Orbigny, 1826, TMC. p. 293, no. 1, ModMe no. 13. 

 Pidkiiiu „ Cushman, 1910, etc., FN I". 1!)M. p. 2(). pi. xi, {'vj.. 2. 



Stations 3, 6-8, 10-12. 16-20, 22, 23, '2!). 36 (-t-T. d. K.). 



Best in the N.Z. area at Stations 7 and 11, where it is very fine. t)ufside 

 this area best at Station 16, where it is very large, and at Station 22, where 

 five-chambered specimens occur. Small at most of the other southerly Stations. 

 Compressed individuals at Stations 7, 11, 16, 1!), 29 and 36. 



SPHAEROIDINA, d'Orbigny. 



4'.»1. Sjjh((cruidiiia bulloides. d'l^i'bigny. 



Sjih'irrovliiKi hidhule.t, d'Orbigny, 182U, TJR'. \>. 207, iiu. I, Muddle nu. (i5. 



Cushman. 1910, etc., FNP. 191 I, p. 18. pi. x, (ig. 7 ; i.!. \ii, fig. 1. 



Stations 1, 3, 6-12, 14, 16. 17, 19, 31, 32, 36, 41, 45, 55. 



Generally distrilnited, Imt nowhere almntlant, except at Station 17, where it 

 is common, but the specimens are small. Stations 10 and 11 are the f>est, where 

 it is frequent, finely-developed and large. At the remaining Stations the records 

 mostly depend upon a single specimen. 



[Arenaceous isomorph, Haplophra<puiiiiii sphaeroidiniforme, Brady.] 



492. Sphueroidma dehiscens, Parker and Jones. 



Sphaeroidiiia dehiscens, Parker and Jones, 1865, NAAF. p. 369, pi. xix, fig. 5. 



Cushman, 1910, etc., FNP. 19M, p. 19, pi. x, fig. 2 ; pi. xiii, tig. 1. 



Stations 6, 7. 



Extremely rare, but typical. 



