230 ''TERRA NOVA" EXPEDITION. 



627. Polystomella macella (Fichtel and Moll). 



Nautilus macellm, Fichtel and Moll, 1798, TM. p. 66, pi. x, figs. e-g. 

 Polystomella macella, Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 7.3i. 



Stations 1-3, 4-6. 



Large and excellent recent examples, except at Stations 3 and 4. Excellent 

 fossils at Stations 2, 3 and 6. 



Sub-Family NUMMULITIXAE. 

 OPERCULIXA. d'Orbigny. 



628. Operculina ammonoides (Gronovius). 



Nautilus ammonoides, Gronovius, 1781, ZG. p. 282, uo. 1,220. pi. six (Ease, iii. Tab. 2), figs. 5, 6. 

 Operculina „ Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 737. 



Stations 6, 26, 49, 55 ( -h K. I.). 



Typical and well developed at the two southernmost Stations. Small and 

 weak at the other Stations. This is normally an Arctic form, but it occurs in 

 a pauperate condition all over the world. 



V. APPENDIX. 



A.— OFF TIEREA DEL FUEGO. 



Station. Official list 308. — H.-A. & E., Station 56. See description of the 

 material, ante, p. 58. 



This small tube of soundings, whilst properly Antarctic, or, rather, coming 

 under our Section 2 (of deep-water Stations between 51° and 72° S.), had it 

 not been from a locality so far away from the group of localities the subject 

 of our Report, would have come between our Stations 13 and 14, being situated 

 in 55° 29' S., and 78° 54' W.— " 2,356 fms., to the west of Tierra del Fuego." 



Being, like Official Station 42, in the nature of an isolated gathering, we 

 have preferred to deal with it separately, like that Station, in an Appendix. 



The following species were found at this Station which were not foimd 

 elsewhere in the material submitted to us. The other species found at the Station 

 are indicated by the letters " T. d. F."' after the lists of Stations for the species 

 recorded in the Report. 



629. Aschemonella catenata (Norman). 



Astrorhiza catenata, Norman, 1876, Proc. Roy. Soc, vol. xxv, p. 213. 



Aschemonella catenata, Brady, 1879, etc., RRC. 1879. p. 42, pi. iv, figs. 12, 13 : 1884, FC. p. 271, 



pi. xxvii, figs. 1-11 ; pi. xxvii a, figs. 1-3. 



One small and not very satisfactory specimen. 



