602 MESSilS. E, HERON-ALLEN AND A, EAliLAND 0^f 
in our collection. The points o£ difference lie in the extremely regular 
disposition of the chambers in Nevillina, and particularly in the distinctive 
crown-like ap'erture. Millett's original type-specimen of Biloculina coronata, 
which is also in our collection, is, on the contrary, much more likely to be 
referable to Nxibecularia schauinslandi than to NevilUna coronata, its only 
point of identit}^ with NevilUna being the fact that the projecting teeth 
round the aperture actually meet and coalesce instead of remaining distinct 
and separate as in Niibecularia schaxdnslandi. Otherwise the whole structure 
and appearance of the specimen is distinctly nubecularine and has no feature 
in common with NevilUna coronata. 
Sub-familj' Miliolinin^. 
BiLOCULiNA d' OrUgny. 
4. BiLOCDLINA EINGENS, Var. STRIOLATA Brady. 
Biloculina ringens, var. striolata Brady, 1884, FC. p. 143, pi. 3. figs. 7, 8. 
„ „ „ Millett, 1898, etc., FM. 1898, p. 262, pi. 5. 
■ fig. 8. 
„ „ „ Heron-Allen & Earland, 1914-15, FKA. 
p. 551. 
Rare. The specimens agree entirely with Brady's description and fio-ure. 
5. Biloculina sarsi Scldumherger. 
Biloculina sarsi Schlumberger, 1891, BGF. p. 166, ])]. 9. tigs. 55-59, text- 
figs. 10-12. 
„ „ Cushman, 1921, FP. p. 471, pi. 97. fig. 1, text-fig. 48. 
Rare. The specimens are fairly large and distinctive. 
6. Biloculina depressa d' OrUgny. 
Biloculina depressa d'Orbignj', 1826, TMC. p. 298, no. 7 ; Modele, no. 91. 
„ Brady, 1884, FC. p. 145, pi. 2. tigs. 12, 15-17 ; pi. 3. 
figs. 1, 2. 
Very rare. 
7. Biloculina depressa, var. seerata Bailey. 
Biloculina depressa, var. serrata Bailey, 1861, New Spp. Micr. Org. Para River, 
S. America. Boston Journ. Nat. Hist, 
vol. ni. p. 350, pi. 8. fig. B. 
Cushman, 1910, etc., FNP. 1917, p. 75, pi. 29. 
fig. 2. 
A single specimen, the sen-ation being confined to the aboral half of the 
shell. 
